FILE NO. A02-013
SERVICE MANUAL
<OWNER’S MANUAL/INSTALLATION MANUAL>
SPLIT TYPE
RAV-SM560AT-E/RAV-SM800AT-E
RAV-SM560UT-E/RAV-SM800UT-E
RAV-SM560BT-E/RAV-SM800BT-E
RAV-SM560KRT-E/RAV-SM800KRT-E
R410A
PRINTED IN JAPAN, Apr.,2003 ToMo
Outdoor Unit ––––––––– RAV-SM800AT-E/RAV-SM800AT-E
INSTALLATION MANUAL
PRECAUTIONS FOR SAFETY ................................................ 1
ACCESSORY AND REFRIGERANT ........................................ 3
SELECTION OF INSTALLATION ............................................. 3
REFRIGERANT PIPING ........................................................... 8
EVACUATING ......................................................................... 10
ELECTRICAL WORK ............................................................. 12
FINAL INSTALLATION CHECKS........................................... 13
RAV-SM560UT-E/RAV-SM800UT-E
INSTALLATION MANUAL
Accessory parts and Parts to be procured locally ............ 31
PRECAUTIONS FOR SAFETY .............................................. 32
SELECTION OF INSTALLATION PLACE .............................. 34
DRAIN PIPING WORK ........................................................... 39
REFRIGERANT PIPING ......................................................... 41
EVACUATING ......................................................................... 42
ELECTRICAL WORK ............................................................. 44
TEST RUN .............................................................................. 47
TROUBLESHOOTING ............................................................ 48
RAV-SM560BT-E/RAV-SM800BT-E
INSTALLATION MANUAL
Accessory parts and Parts to be procured locally ............ 63
PRECAUTIONS FOR SAFETY .............................................. 64
SELECTION OF INSTALLATION PLACE .............................. 66
INSTALLATION OF INDOOR UNIT........................................ 67
AIR DUCTING WORK ............................................................ 70
DRAIN PIPING WORK ........................................................... 74
REFRIGERANT PIPING ......................................................... 75
EVACUATING ......................................................................... 76
ELECTRICAL WORK ............................................................. 77
INSTALLATION/SERVICINGTOOLS ..................................... 78
RAV-SM560KRT-E/RAV-SM800KRT-E
INSTALLATION MANUAL
Accessory parts and Parts to be procured locally ............ 91
PRECAUTIONS FOR SAFETY .............................................. 92
INSTALLATION PROCEDURE .............................................. 94
SELECTION OF INSTALLATION PLACE .............................. 95
INSTALLATION OF INDOOR UNIT........................................ 95
DRAIN PIPING WORK ........................................................... 96
REFRIGERANT PIPING ......................................................... 98
EVACUATING ......................................................................... 99
ELECTRICAL WORK ........................................................... 102
IMPROVING SYSTEM EFFICIENCY ................................... 104
FINAL INSTALLATION CHECKS......................................... 104
ENVIRONMENT.................................................................... 106
???
INSTALLATION MANUAL
1
PRECAUTIONS FOR SAFETY
• Ensure that all Local, National and International regulations are satisfied.
• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the installation work, perform a trial operation to check for any problem.
Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
• Ask the customer to keep the Installation Manual together with the Owner’s Manual.
CAUTION
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DE-
STROY OZONE LAYER.
The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure
is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil
has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or
refrigerating oil does not enter the refrigerating cycle.
To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging
port of the main unit and installation tools are charged from those for the conventional refrigerant.
Accordingly the exclusive tools are required for the new refrigerant (R410A).
For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust
does not enter. Moreover, do not use the existing piping because there are problems with pressure-resistance
force and impurity in it.
CAUTION
To Disconnect the Appliance from Main Power Supply.
This appliance must be connected to the main power supply by means of a switch with a contact separation of
at least 3 mm.
The installation fuse (25A D type
) must be used for the power supply line of this conditioner.
WARNING
• Ask an authorized dealer or qualified installation professional to install/maintain the air
conditioner.
Inappropriate installation may result in water leakage, electric shock or fire.
• Turn off the main power supply switch or breaker before attempting any electrical work.
Make sure all power switches are off. Failure to do so may cause electric shock.
• Connect the connecting cable correctly.
If the connecting cable is connected in a wrong way, electric parts may be damaged.
• When moving the air conditioner for the installation into another place, be very careful not
to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle.
If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes abnor-
mally high and it may resultingly causes pipe burst and injuries on persons.
• Do not modify this unit by removing any of the safety guards or by by-passing any of the
safety interlock switches.
• Exposure of unit to water or other moisture before installation may cause a short-circuit of
electrical parts.
Do not store it in a wet basement or expose to rain or water.
1
• After unpacking the unit, examine it carefully if there are possible damage.
• Do not install in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
• When the air conditioner is installed in a small room, provide appropriate measures to
ensure that the concentration of refrigerant leakage occur in the room does not exceed the
critical level.
• Install the air conditioner securely in a location where the base can sustain the weight
adequately.
• Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.
• If refrigerant gas has leaked during the installation work, ventilate the room immediately.
If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.
• After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas
might generate.
• Electrical work must be performed by a qualified electrician in accordance with the Installa-
tion Manual. Make sure the air conditioner uses an exclusive power supply.
An insufficient power supply capacity or inappropriate installation may cause fire.
• Use the specified cables for wiring connect the terminals securely fix. To prevent external
forces applied to the terminals from affecting the terminals.
• Be sure to provide grounding.
Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.
• Conform to the regulations of the local electric company when wiring the power supply.
Inappropriate grounding may cause electric shock.
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible
gas.
If a combustible gas leaks, and stays around the unit, a fire may occur.
Required tools for installation work
R410A (Special requirement)
1) Philips screw driver
2) Hole core drill (65 mm)
3) Spanner
17) Gauge manifold
9) Thermometer
10) Mega-tester
11) Electro circuit tester
12) Hexagonal wrench
13) Flare tool
(Charge hose : R410A special requirement)
18) Vacuum pump
(Charge hose : R410A special requirement)
4) Pipe cutter
19) Torque wrench
5) Knife
1/4 (17 mm) 16 N•m (1.6 kgf•m)
3/8 (22 mm) 42 N•m (4.2 kgf•m)
1/2 (26 mm) 55 N•m (5.5 kgf•m)
5/8 (15.9 mm) 120 N•m (12.0 kgf•m)
6) Reamer
14) Pipe bender
15) Level vial
7) Gas leak detector
8) Tape measure
16) Metal saw
20) Copper pipe gauge adjusting projection margin
21) Vacuum pump adapter
2
2
ACCESSORY AND REFRIGERANT
Accessory and Installation Parts
Refrigerant Piping
• Piping kit used for the conventional refrigerant cannot
be used.
• Use copper pipe with 0.8 mm or more thickness for
Ø6.4, Ø9.5, Ø12.7.
1
3
4
Outdoor unit
Protective bush
Installation manual x 1
(For SM800AT only)
Use copper pipe with 1.0 mm or more thickness for
Ø15.9.
Drain nipple
• Flare nut and flare works are also different from those
of the conventional refrigerant. Take out the flare nut
attached to the main unit of the air conditioner, and
use it.
2
Guard material for
passage part
(For SM800AT only)
Waterproof rubber cap
3
SELECTION OF INSTALLATION
<SM800AT-E>
Before installation
Length of refrigerant pipe
connected to
Be careful to the following items before installation.
Item
indoor/outdoor unit
Addition of refrigerant is
unnecessary at the local site.
Length of refrigerant pipe
20m or shorter
<SM560AT-E>
<Addition of refrigerant>
Add 40g of refrigerant for every
1m of pipe which exceeds 20m.
21m to 50m
*
Length of refrigerant pipe
connected to
Item
indoor/outdoor unit
* Caution at addition of refrigerant
Addition of refrigerant is
unnecessary at the local site.
When the total length of refrigerant pipe exceeds
20m, add 40g/m of refrigerant and the maximum total
length of pipe is 50m.
20m or shorter
<Addition of refrigerant>
Add 20g of refrigerant for every
1m of pipe which exceeds 20m.
21m to 30m
(Max. amount of additional refrigerant is 1200g.)
*
Charge the refrigerant accurately. Overcharge may
cause a serious trouble of compressor.
* Caution at addition of refrigerant
When the total length of refrigerant pipe exceeds
20m, add 20g/m of refrigerant and the maximum total
length of pipe is 30m.
Air purge
• For air purge, use a vacuum pump.
(Max. amount of additional refrigerant is 200g.)
• Do not use refrigerant charged in the outdoor unit for
air purge. (The refrigerant for air purge is not con-
tained in the outdoor unit.)
Charge the refrigerant accurately. Overcharge may
cause a serious trouble of compressor.
Electrical cabling
• Be sure to fix the power cables and indoor/outdoor
connecting cables with clamps so that they do not
contact with the cabinet, etc.
3
Installation Place
Necessary Space for Installation
Obstacle at rear side
• A place which provides a specified space around the
outdoor unit.
• A place where the operation noise and discharged air
are not given to your neighbors.
<Upper side is free>
1. Single unit installation
• A place that is not exposed to a strong wind.
• A place that does not block a passage.
• When the outdoor unit is installed in an elevated
position, be sure to secure its feet.
• There must be sufficient space for carrying in the
unit.
2. Obstacles at both right and left sides.
• A place where the drain water does not make any
The height of the
obstacle should be
lower than the height
of the outdoor unit.
problem.
CAUTION
150
or more
300
or more
1. Install the outdoor unit at a place where dis-
charge air is not blocked.
3. Serial installation of two or more units
2. When an outdoor unit is installed in a place that
is always exposed to a strong wind like a coast
or on a high storey of a building, secure a
normal fan operation by using a duct or a wind
shield.
3. When installing the outdoor unit in a place that is
constantly exposed to a strong wind such as the
upper stairs or rooftop of a building, apply the
windproof measures referring to the following
examples.
150
or more
300
or more
300
or more
300
or more
The height of the obstacle should be lower
than the height of the outdoor unit.
1) Install the unit so that its
discharge port faces to the
wall of the building. Keep a
distance 500 mm or more
between the unit and the
wall surface.
<Obstacle also at the upper side>
150
or more
2) Supposing the wind direction during the
operation season of the air conditioner, install
the unit so that the discharge port is set at
right angle to the wind direction.
Obstacle at front side
Strong
wind
<Upper side is free>
Strong
wind
1. Single unitIn installation
4. Installation in the following places may result in
some troubles. Do not install the unit in such
places below.
2. Serial installation of two or more units
• A place full of machine oil.
• A place full of sulphuric gas.
• A place where high-frequency radio waves are
likely to be generated as from audio quipment,
welders, and medical equipment.
4
3
SELECTION OF INSTALLATION
<Obstacle also at the upper side>
Installation of Outdoor Unit
• Before installation, check strength and horizontality of
the base so that abnormal sound does not generate.
1000
or more
• According to the following base diagram, fix the base
firmly with the anchor bolts.
(Anchor bolt, nut: M10 x 4 pairs)
<SM560AT-E>
90
600
115
90
Obstacles at both front and rear sides
Open the upper side and both right and left sides.
The height of obstacle at both front and rear side,
should be lower than the height of the outdoor unit.
<Standard installation>
Ø28 Drain hole
1. Single unit installation
<SM800AT-E>
150
600
150
430
Drain hole
Drain nipple mounting hole
Knockout hole
2. Serial installation of two or more units
Set the out margin of the anchor bolt to 15mm or less.
15 or less
300
or more
300
or more
• In case of drainning through the drain hose, attach
the following drain nipple and the waterproof rubber
cap, and use the drain hose (Inner diam.: 16mm) sold
on the market. And also seal the screws securely with
silicone material, etc. so that water does not drop
down. Some conditions may cause dewing or drip-
ping of water.
Serial installation at front and rear sides
Open the upper side and both right and left sides.
The height of obstacle at both front and rear sides
should be lower than the height of the outdoor unit.
<Standard installation>
1000
or more
300
or more
1500
or more
2000
or more
200
or more
Drain nipple
Waterproof rubber cap
5
<SM560AT-E>
Refrigerant Piping Connection
CAUTION
TAKE NOTICE THESE IMPORTANT
Waterproof rubber cap
4 POINTS BELOW FOR PIPING WORK
1. Keep dust and moisture away from inside the
connecting pipes.
2. Tightly connect the connection between pipes
and the unit.
Base plate
3. Evacuate the air in the connecting pipes using
VACUUM PUMP.
Drain nipple
4. Check gas leak at connected points.
<SM800AT-E>
<Piping connection>
Knockout hole
Capacity
rank
Liquid side
Gas side
Outer
diameter
Outer
diameter
Thickness
Thickness
RAV-
Open
Waterproof rubber cap
Drain nipple
SM560
SM800
Ø6.4
0.8
0.8
Ø12.7
0.8
1.0
Ø9.5
Ø15.9
• When there is a possibility of freezing of drain at the
cold district or a snowfall area, be careful for drainage
ability of drain.The drainage ability increases when a
knockout hole on the base plate is opened. (Open the
knockout hole to outside using a screwdriver, etc.)
Optional Installation Parts
(Local Procure)
Parts name
Refrigerant piping
Q’ty
A
Liquid side : Ø6.35 mm or Ø9.52 mm
Each one
Gas side : Ø12.7 mm or Ø15.9 mm
Pipe insulating material
(polyethylene foam, 6 mm thick)
B
C
1
Putty, PVC tapes
Each one
6
3
SELECTION OF INSTALLATION
How to remove the front panel
Knockout of Pipe Cover
1. Remove screws of the front panel.
2. Pull the front panel downward.
<SM800AT-E>
Removing the front panel, the electric parts appear at
the front side.
• The metal pipes are attachable to the piping holes.
If the size of the used power pipe does not match
with the hole, adjust the hole size to match with pipe
size.
Rear direction
Pipe cover
• Be sure to fix the power cable and indoor/outdoor
connecting cable with bundling band sold on the
market so that they do not make contact with the
compressor and discharge pipe.
(Temperature of the compressor and discharge pipe
becomes high.)
Side direction
Front direction
Down direction
In order to avoid the force applied to on the connect-
ing section, be sure to fix the cables to the cord
clamps provided on the pipe valve fixing plate and the
electric parts box.
Knockout procedure
• The indoor/outdoor connecting pipes can be con-
nected to 4 directions.
Electric parts box
Front panel
Take off the knockout part of the pipe cover in which
pipes or wires pass through the base plate.
• As shown in the figure, do not remove the pipe cover
from the cabinet so that the knockout hole can be
easily punched.To knock out, it is easily taken off by
hands by punching a position at the lower side of 3
connected parts with screwdriver along the guide
line.
Pipe valve
fixing plate
Piping
hole
• After marking the knockout hole, remove the burr and
mount the attached protective bush and guard
material for pass-through part in order to protect
pipes and wires.
Cord clamp
After connecting the pipes, be sure to mount the pipe
cover. The pipe cover is easily mounted by cutting off
the slit at the lower part of the pipe cover.
7
4
REFRIGERANT PIPING
• Flaring size : A (Unit : mm)
Pipe Forming/End Positioning
+0
<SM560AT-E>
A
-
0.4
Outer dia. of copper pipe
• Forming of pipe
R410A
9.1
R22
9.0
Form the pipe along with a marked line of the cabinet.
• End positioning of pipe
6.35
9.52
12.7
15.9
13.2
16.6
19.7
13.0
16.2
19.4
Match the ends of both pipes at at a distance of
85 mm apart from the marked line.
* In case of flaring for R410A with the conventional
flare tool, pull it out approx. 0.5 mm more than that of
R22 to adjust to the specified flare size. The copper
pipe gauge is useful for adjusting projection margin
size.
A
Marked line
• Projection margin in flaring : B (Unit : mm)
Rigid (Clutch type)
Flaring
1. Cut the pipe with a pipe cutter.
Outer dia.
of copper
pipe
R410A tool used
R410A R22
Conventional tool used
R410A R22
6.35
9.52
12.7
15.9
0 to 0.5 (Same as left) 1.0 to 1.5 0.5 to 1.0
0 to 0.5 (Same as left) 1.0 to 1.5 0.5 to 1.0
0 to 0.5 (Same as left) 1.0 to 1.5 0.5 to 1.0
0 to 0.5 (Same as left) 1.0 to 1.5 0.5 to 1.0
90˚
Obliquity Roughness
Warp
Imperial (Wing nut type)
2. Insert a flare nut into the pipe, and flare the pipe.
Outer dia. of copper pipe
R410A
R22
As the flaring sizes of R410A differ from those of
refrigerant R22, the flare tools newly manufactured
for R410A are recommended.
However, the conventional tools can be used by
adjusting projection margin of the copper
6.35
9.52
12.7
15.9
1.5 to 2.0
1.5 to 2.0
2.0 to 2.5
2.0 to 2.5
1.0 to 1.5
1.0 to 1.5
1.5 to 2.0
1.5 to 2.0
pipe.
B
8
4
REFRIGERANT PIPING
Tightening of Connecting Part
REQUIREMENT
(Unit: N•m)
1. Do not put the spanner on the cap. The valve
may be broken.
Outer dia. of copper pipe
6.35mm (diam.)
Tightening torque
2. If applying excessive torque, the nut may be
broken according to some installation conditions.
14 to 18 (1.4 to 1.8kgf•m)
33 to 42 (3.3 to 4.2kgf•m)
50 to 62 (5.0 to 6.2kgf•m)
63 to 77 (6.3 to 7.7kgf•m)
9.52mm (diam.)
12.7mm (diam.)
• After the installation work, be sure to check gas leak
of connecting part of the pipes with nitrogen.
15.9mm (diam.)
Flare at
indoor unit side
Cover
Flare at
outdoor unit side
• Align the centers of the connecting pipes and tighten
the flare nut strong as far as possible with your
fingers.
Then fix the nut with a spanner and tighten it with
torque wrench as shown in the figure.
Half union or packed valve
Flare nut
• Pressure of R410A is higher than that of R22
(Approx. 1.6 times).Therefore, using a torque
wrench, tighten the flare pipe connecting sections
which connect the indoor/outdoor units at the speci-
fied tightening torque. Incomplete connections may
cause not only a gas leak, but also a trouble of the
refrigeration cycle.
Externally
threaded side
Internally
threaded side
Fix with spanner.
Tighten with torque wrench.
• As shown in the figure, be sure to use a double
spanner to loosen or tighten the flare nut of the valve
at gas side. If using a single spanner, the nut cannot
be tightened with necessary tightening torque.
Do not apply refrigerating machine oil to
the flared surface.
On the contrary, use a single spanner to loosen or
tighten the flare nut of the valve at liquid side.
Cover
Cap
Piping valve
Loosened
Tightened
Flare nut
SM800 type valve at gas side
9
5
EVACUATING
Air Purge
This air conditioner can be installed up to the connecting pipe length and height difference in the following table.
Height difference (m)
Max. connecting
pipe length (m)
Hexagonal
wrench size
Capacity rank
Outdoor unit at upper side Outdoor unit at lower side
SM560 type
SM800 type
30
50
30
30
15
15
4mm
With respect to the preservation of terrestrial environment, adopt “Vacuum pump” for air purge (Evacuate air in
the connecting pipes) when installing the unit.
• Do not discharge the refrigerant gas to the atmosphere to preserve the terrestrial environment.
• Use a vacuum pump to discharge the air (nitrogen, etc.) remained in the set. If the air remains, the capacity
may decrease.
For the vacuum pump, be sure to use one with backflow preventer so that the oil in the pump does not backflow
into the pipe of the air conditioner when the pump stops. (If oil in the vacuum pump is put in an air conditioner
including R410A, it may cause trouble on the refrigeration cycle.)
Vacuum pump
As shown in the right figure, connect the charge hose after the manifold valve are closed completely.
Attach the connecting port of the charge hose with a projection to push the valve core (setting pin) to the charge port of the set.
Open handle Low fully.
Turn ON the vacuum pump (*1)
Loosen the flare nut of the packed valve (Gas side) a little to check the air passes through. (*2)
Tighten the flare nut again.
Execute vacuuming until the compound pressure gauge indicates –101kPa (–76cmHg). (*1)
Close handle Low completely.
Turn OFF the vacuum pump.
Leave the vacuum pump as it is for 1 or 2 minutes, and check the indicator of the compound pressure gauge does not return.
Open fully the valve stem or the valve handle. (First, at liquid side, then gas side)
Disconnect the charge hose from the charge port.
Tighten valve and caps of the charge port surely.
10
5
EVACUATING
Valve unit
<SM560AT-E>
OPEN
Compound pressure gauge
Pressure gauge
–101kPa
(–76cmHg)
Manifold valve
Handle
Pull out the handle and
using cutting pliers, etc.
turn it counterclockwise
by 90˚. (Open fully)
Handle Lo
Handle Hi
(Keep fully closed)
Charge hose
(For R410A only)
Charge hose
(For R410A only)
Charge port
Vacuum pump adapter
for counter-flow prevention
(For R410A only)
Flare nut
Valve unit
CLOSE
Vacuum
pump
Packed valve (Gas side)
Push in handle.
Service port (Valve core (Setting pin))
Flare nut
Valve unit
Charge port
Stopper
Charge cap
Flare nut
Handle position
Charge port
Valve rod
<SM800AT-E>
Compound pressure gauge
Pressure gauge
Handle
–101kPa
(–76cmHg)
Manifold valve
Opened fully
Closed completely
Handle Lo
Handle Hi
(Keep fully closed)
Charge hose
(For R410A only)
*1. Use the vacuum pump, vacuum pump adapters,
and gauge manifold referring to the manuals
attached to each tool before using them. For the
vacuum pump, check oil is filled up to the specified
line of the oil gauge.
Charge hose
(For R410A only)
Service port
(Valve core (Setting pin))
Vacuum pump adapter
for counter-flow prevention
(For R410A only)
*2. While the air is purged, check again that the
connecting port of charge hose, which has a
projection to push the valve core, is firmly con-
nected to the charge port.
Vacuum
pump
Packed valve at gas side
Valve handling precautions
• Open the valve stem or the handle until it strikes
the stopper. It is unnecessary to apply further
force.
Ø6.4
Ø9.5
14 to 18N•m (1.4 to 1.8kgf•m)
33 to 42N•m (3.3 to 4.2kgf•m)
33 to 42N•m (3.3 to 4.2kgf•m)
20 to 25N•m (2.0 to 2.5kgf•m)
14 to 18N•m (1.4 to 1.8kgf•m)
Valve size
Ø12.7
Ø15.9
• Securely tighten the cap with a torque wrench.
• Cap tightening torque
Charge port
11
6
ELECTRICAL WORK
For the air conditioner that has no power cable, connect
a power cable as mentioned below.
How to wire
1. Connect the connecting cable to the terminal as
identified with their respective numbers on the
terminal block of indoor and outdoor unit.
Model
RAV-
SM560AT-E SM800AT-E
220 – 240 V
H07 RN-F or 245 IEC 66 (1.0 mm2 or more)
Power supply
Single phase 50 Hz
2. When connecting the connecting cable to the
outdoor unit terminal, prevent water coming in the
outdoor unit.
Maximum running current
Installation fuse rating
12A
15A
25 A (D type
)
3. Insulate the unsheathed cords (conductors) with
electrical insulation tape. Process them so that they
do not touch any electrical or metal parts.
H07 RN-F or 245 IEC 66
(2.5 mm2 or more)
Power cable
4. For inter connecting cable, do not use a wire jointed
to another on the way.
CAUTION
Use wires long enough to cover the entire length.
• Wrong wiring may cause a burn-out to some
electrical parts.
Terminal block
• Be sure to use the cord clamps attached to the
1
2
3
L
N
product.
• Do not damage or scratch the conductive core
and inner insulator of power and inter-connecting
cables when peeling them.
Screw
• Be sure to comply with local regulations of the
cable from outdoor unit to indoor unit.
(wire size and cabling method etc.)
Power cable
Connecting
cable
• Use the power and Inter-connecting cables with
specified thickness, specified type and protective
devices required.
Stripping length power cord and connecting cable
<SM560AT-E>
10
10
1 2 3
L
N
10
10
How to remove the valve cover
1. Remove screws of the valve cover.
40
40
30
30
2. Pull the valve cover downward to remove it.
Earth line Earth line
(mm)
Connecting
cable
Power cable
Valve cover
Piping cover
CAUTION
• The installation fuse (25A D type
) must
be used for the power supply line of this air
conditioner.
• Incorrect/incomplete wiring might cause an
electrical fire or smoke.
Cord clamp
Indoor/outdoor
connecting cables
Power cable
• Prepare the exclusive power supply for the air
conditioner.
• This product can be connected to the mains.
Connection to the fixed wiring :
A switch which disconnects all poles and has a
contact separation of at least 3 mm must be
incorporated in the fixed wiring.
12
7
FINAL INSTALLATION CHECKS
Check and Test Operation
For R410A, use the leak detector exclusively manufactured for HFC refrigerant (R410A, R134a, etc.).
The conventional leak detector for HCFC refrigerant
(R22, etc.) cannot be used because its sensitivity for
HFC refrigerant lowers to approx. 1/40.
*
Valve cover
Piping
cover
• Pressure of R410A is approx. 1.6 times higher than
that of R22.
If installation work is incompletely finished, a gas
leakage may occur when pressure rises during
operation.
Flare nut
connections
(Indoor unit)
Therefore, be sure to test the piping connections for
leakage.
• Check gas leakage at the flare nut connections, valve
stem cap connections and service port cap fittings
with a leak detector or soap water.
Check points
of outdoor unit
Useful Functions (SM800AT-E only)
Self-Diagnosis by LED Indication
In addition to the code checking by remote controller of the indoor unit, troubles of the outdoor unit can be diag-
nosed by LED indications on the cycle control P.C. board of the outdoor unit. Utilize them for various checks.
For the check by remote controller of the indoor unit, refer to the Installation Manual of the indoor unit.
Before a check, confirm each bit of the DIP switch is set to OFF position.
LED indication and code checking
Cycle control P.C. board
DIP switch
LED indication
Cause
SW800
D800 D801 D802 D803
Heat exchanger sensor (TE) error
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Suction sensor (TS) error
Discharge sensor (TD) error
High-pressure protection error
Outdoor temperature sensor (TO) error
DC outside fan error
LED
indication
Communication error between IPDU
Discharge temp. error
D800
: Red
¡
ON
EEPROM error
D801
:Yellow
¡
1
2
3
4
Communication error between IPDU
G-Tr short-circuit protection
D802
:Yellow
¡
Detect circuit error
D803
:Yellow
¡
Current sensor error
Comp. lock error
Comp. break down
: Rapid flash
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Phase missing detection, Detection of coming-off of CT current sensor
Serial communication error by thermo. operation of Comp. case
: Go off
l
: Go on
¡
13
Changes in the product and components
Installation/ServicingTools
In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged acciden-
tally, service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads
per inch)
• In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of
opposite side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)
New tools for R410A
New tools for R410A
Applicable to R22 model
Changes
As pressure is high, it is impossible to measure by means of conventional
gauge. In order to prevent any other refrigerant from being charged, each
port diameter is changed.
Gauge manifold
×
In order to increase pressure resisting strength, hose materials and port
size are changed (to 1/2 UNF 20 threads per inch).
When purchasing a charge hose, be sure to check the port size.
Charge hose
×
Electronic balance
for refrigerant charging
As pressure is high and gasification speed is fast, it is difficult to read the
indicated value by means of charging cylinder, as air bubbles occur.
¡
Torque wrench
The size of opposite sides of flare nuts have been increased. Incidentally,
a common wrench is used for nominal diameters 1/4 and 3/8.
×
¡
(nominal diam. 1/2, 5/8)
Flare tool
(clutch type)
By increasing the clamp bar’s receiving hole, strength of spring in the tool
has been improved.
Gauge for projection adjustment
—
—
Used when flare is made with using conventional flare tool.
Connected to the conventional vacuum pump. It is necessary to use an
adapter to prevent vacuum pump oil from flowing back to the charge hose.
The charge hose connecting part has two ports-one for conventional
refrigerant (7/16 UNF 20 threads per inch) and one for R410A.
If the vacuum pump oil (mineral) mixes with R410A a sludge may occur
and damage the equipment.
Vacuum pump adapter
¡
Gas leakage detector
X
Exclusive for HFC refrigerant.
×
• Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R410A) and protector coating in the
U,S.’s ARI specified rose color (ARI color code: PMS 507).
• Also, the “charge port and packing for refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to
the charge hose’s port size.
14
ACCESSORIES
Remote controller
Screws (two pcs.)
Standard 4-way cassette
panel optional parts
PRECAUTIONS FOR SAFETY
WARNING
WARNINGS ABOUT INSTALLATION
• Make sure to ask the qualified installation professional in electric work to install
the air conditioner.
If the air conditioner is inappropriate installed by yourself, it may cause water
leak, electric shock, fire, and so on.
• Ground the air conditioner without fail.
Do not connect the ground wire to gas pipe, water pipe, lightning rod or ground
wire of telephone. If the air conditioner is imperfectly grounded, it may cause
electric shock.
CAUTION
TO DISCONNECT THE APPLIANCE FROM THE MAINS SUPPLY
This appliance must be connected to the mains by means of a switch with a
contact separation of at least 3 mm.
The installation fuse (25A D type
supply line of this conditioner.
) must be used for the power
WARNINGS ABOUR OPERATION
• Avoid cooling the room too strong or exposing the human body to cool breeze
for a long time as it is bad for the health.
• When you notice something abnormal with the air conditioner (smells like
something scorching, poor cooling, etc.), immediately turn off the main switch,
the circuit breaker, from the mains to stop the air conditioner, and contact the
dealer.
If the air conditioner is continuously operated with something abnormal, it may
cause machine failure, electric shock, fire, and so on.
WARNINGS ABOUT MOVEMENT AND REPAIR
• Do not move or repair any unit by yourself.
Since there is high voltage inside the unit, you may get electric shock when
removing the cover and main unit.
• Whenever the air conditioner needs repair, make sure to ask the dealer to do it.
If it is repaired imperfectly, it may cause electric shock or fire.
• When moving the air conditioner for re-installing at another place, ask the
dealer to do it. If it is imperfectly installed, it may cause electric shock or fire.
15
CAUTION
CAUTIONS ABOUT INSTALLATION
• Certainly lay the drain hose for perfect draining.
Bad drainage may cause flooding in the house and getting furniture
wet.
• Make sure to connect the air conditioner to an exclusive AC outlet of
the rated voltage, otherwise the unit may break down or cause a fire.
• Do not install the unit in a place where inflammable gas may leak.
If inflammable gas accumulates around the unit, it may cause a fire.
CAUTIONS ABOUT OPERATION
• Carefully read this manual before starting the air conditioner.
There are many important things to keep in mind for daily operation.
• Do not use this air conditioner for special purpose such as preserv-
ing food, precision instruments, art objects, breeding animals,
growing potted plants, etc.
• Avoid exposing potted plants and animals to the wind of the air
conditioner, since it badly affects the health and growth of them.
• When the air conditioner is operated with a combustion appliance in
the same place, be careful of ventilation to let fresh air enter the
room.
Poor ventilation causes oxygen shortage.
• When the air conditioner is used in a closed room, be careful of
sufficient ventilation of the room. Poor ventilation causes oxygen
shortage.
• Do not touch any switches with wet finger, otherwise you may get an
electric shock.
• Do not place any combustion appliance in a place where it is directly
exposed to the wind of air conditioner, otherwise it may cause
imperfect combustion.
• If the air conditioner won’t be used for a considerably long time, turn
off the main switch or the circuit breaker, for safety. Disconnect from
the power supply prevents the unit from lightning and power supply
surge.
• Check the concrete blocks, etc. of the base of the outdoor unit
occasionally.
If the base is left damaged or deteriorated, the unit may topple over
and inflict an injury to a person as the worst case.
• When cleaning the unit, make sure to turn off the main switch or the
circuit breaker beforehand for preventing you from getting injured by
the electric fan running inside. For details of cleaning method, refer to
“Maintenance” on page 10.
• Do not put anything on the outdoor unit nor step onto it. If you do so,
it may not only topple over the unit but also injure yourself.
• To make the air conditioner operate in its original performance,
operate it within the range of the operating temperature specified in
the instructions.
Otherwise it may cause a malfunction, or water leak from the unit.
• Prevent any liquid from falling into the remote controller. Do not spill
juice, water or any kind of liquid.
16
PARTS NAME
Indoor unit
Button
Earth screw
Button to open/close the
suction port
Provided in the electric parts
box
Discharge flap of
discharge port
Air filter
Removes dust or trash.
(Provided on the suction port.)
Change the direction of the air
to be discharged according to
cool/heat mode.
Suction air port
The air in the room is sucked
in from this port.
Projection of air filter
Remote controller
Outdoor unit
REMOTE CONTROLLER
Air inlet (Side and rear)
Pipes and electric wires
Air outlet
17
PARTS NAME OF REMOTE CONTROLLER
Display section
CODE No.
In the display example, all indicators are displayed for the explana-
tion.
SET DATA
UNIT No.
Display
section
SETTINGTEST R.C. No.
In reality only, the selected contents are indicated.
• When turning on the leak breaker at the first time, [SET
DATA] flashes on the display part of the remote controller.
While this display is flashing, the model is being automatically
confirmed. Accordingly, wait for a while after [SET DATA]
display has disappeared, and then use the remote controller.
Operation
section
UNIT
SET CL
1
8
2
4
9
CODE No.
SET DATA
UNIT No.
R.C. No.
3
5
10
12
SETTING
TEST
11
13
6
14
7
1
2
3
SET DATA display
9
SWING display
Displayed during setup of the timer.
Displayed during up/down movement of
the flap.
Operation mode select display
The selected operation mode is displayed.
10
Set up temperature display
The selected set up temp. is displayed.
CHECK display
Displayed while the protective device works or a
trouble occurs.
11
12
Remote controller sensor display
Displayed while the sensor of the remote
controller is used.
4
5
Timer time display
Time of the timer is displayed.
(When a trouble occurs, the check code is dis-
played.)
PRE-HEAT display
Displayed when the heating operation
starts or defrost operation is carried out.
While this indication is displayed, the
indoor fan stops or the mode enters in
LOW.
Timer SETIN setup display
When pushing the Timer SETIN button, the
display of the timer is selected in order of [OFF]
→
[OFF] repeat OFF timer → [ON]
13
14
No function display
Displayed if there is no function even if
the button is pushed.
→ No display.
6
7
8
Filter display
If “FILTER
Air volume select display
” is displayed, clean the air filter.
The selected air volume mode is dis-
played.
TEST run display
(AUTO)
(HIGH)
(MED.)
(LOW)
Displayed during a test run.
Flap position display
Displays flap position.
18
Operation section
Push each button to select a desired operation.
• The details of the operation needs to be set up once, afterward, the air conditioner can be used by pushing
button only.
1
7
8
2
4
3
5
9
UNIT
10
SET
CL
6
1
2
Air volume select button
8
button
Selects the desired air volume mode.
When the button is pushed, the operation
starts, and it stops by pushing the button
again.
Timer set button
TIMER SET button is used when the timer is
set up.
When the operation has stopped, the operation
lamp and all the displays disappear.
3
4
Check button
9
Operation select button
The CHECK button is used for the check
operation. During normal operation, do not
use this button.
Selects desired operation mode.
10
Set up temperature button
Adjusts the room temperature.
Fan button
FAN button is used when a fan which is sold on
the market or etc. is connected.
Set the desired set temperature by pushing
or
.
• If “No function” is displayed on the remote
controller when pushing the FAN button, a
fan is not connected.
5
6
Filter reset button
Resets (Erases) “FILTER
” display.
UNIT and AUTO flap button
UNIT (No function)
OPTION :
Remote controller sensor
Usually the TEMP. sensor of the indoor unit senses
the temperature.The temperature on the surround-
ing of the remote controller can also be sensed.
For details, contact the dealer from which you have
purchased the air conditioner.
7
Operation lamp
Lamp is lit during the operation. Lamp is off
when stopped.
Although it flashes when operating the protec-
tion device or abnormal time.
19
CORRECT USAGE
When you use the air conditioner for the first time or when you change the SET DATA value, follow the proce-
dure below. From the next time, the operation displayed on the remote controller will start by pushing the
button only.
Preparation
Turn on the main power switch and/or the leakage breaker.
• When the power supply is turned on, a partition line is displayed on the display part of the remote controller.
After the power supply is turned on, the remote controller does not accept an operation for approx. 1 minute,
but it is not a failure.
*
REQUIREMENT
• While using the air conditioner, operate it only with
power switch and the leak breaker.
button without turning off the main
1
2
4
3
UNIT
SET
CL
1
2
Push
button.
The operation lamp goes on, and the operation starts.
Select an operation mode with the “MODE” button.
AUTO
HEAT
DRY
COOL
FAN
One push of the button, and the display
changes in the order shown on the right.
• In HEAT
mode, if the room temperature reaches to the set temperature, the outdoor unit stops and
the air flow becomes LOW and the air volume decreases.
• In the defrost mode, the fan stops so that cool air is not discharged and PRE-DEF
is displayed.
3
4
Select air volume with “FAN ” button.
AUTO
HIGH
MED.
LOW
One push of the button, and the display
changes in the order shown on the right.
• When air volume is “AUTO
• In DRY mode, “AUTO
”, air volume differs according to the room temperature.
” is displayed and the air volume is LOW.
• In heating operation, if the room temperature is not heated sufficiently with VOLUME “LOW ” opera-
tion, select “MED. ” or “HIGH ” operation.
Determine the set up temperature by pushing the “TEMP.
” or “TEMP.
” button.
20
Stop
Push
button.
The operation lamp goes off, and the operation stops.
AUTOMATIC OPERATION (Auto Changeover)
When you set the air conditioner in
mode or switch over from AUTO operation because of some settings
change, it will automatically select either cooling, heating, or fan only operation depending on the indoor
temperature.
Start
1
2
3
button
Push this button to start the air conditioner.
Mode select button (MODE)
Select Auto.
Temperature button
Set the desired temperature.
• In case of cooling, start the operation after approx. 1 minute.
• In case of heating, the operation mode is selected in accordance with the room temperature and operation
starts after approximately 3 to 5 minutes.
• When you select the Auto mode, it is unnecessary to set the fan speed. The FAN speed display will show
AUTO and the fan speed will be automatically controlled.
• After the heating operation has stopped, FAN operation may continue for approx. 30 seconds.
• When the room temperature reaches the set temperature and the outdoor unit stops, the supper low wind is
discharged and the air volume decreases excessively. During defrost operation, the fan stops so that cool
air is not discharged and “HEAT READY” is displayed.
• If the Auto mode is uncomfortable, you can select the desired conditions manually.
NOTE
When restarting the operation after stop
• When restarting the operation immediately after stop, the air conditioner does not operate for approx. 3
minutes to protect the machine.
Stop
Push
button.
Push this button again to stop the air conditioner.
21
ADJUSTMENT OF WIND DIRECTIONd
• When the air conditioner stops, the flap (adjustment plate of up/down wind direction) directs downward
automatically.
• When the heating operation is in READY states, the flap (adjustment plate of up/down wind direction) directs
upward.The swinging starts after HEAT READY status cleared, SWING
controller even if the heating operation is in READY status.
is displayed on the remote
How to set up the wind direction
1
Push
during operation.
The wind direction changes for every push of the button.
In HEAT operation
Direct the flap (adjustment plate of up/down wind direction) downward. If directing
at upward, hot air may not come to the foot.
Initial setup
In COOL/DRY operation
Direct the flap (adjustment plate of up/down wind direction) upward. If directing it
downward, the dew may from on the surface of the air discharge port and may
drop down.
Initial setup
How to start swinging
1
Push
, set the flap (adjustment
plate of up/down wind direction) direction
to the lowest position, and then push
again.
UNIT
SWING
is displayed and the up/down wind
SET
CL
direction is automatically selected.
How to stop swinging
1
Push SWING/WIND again while the flap is
swinging.
In FAN operation
In all modes
• The flap stops at a position when you push.
After then, if pushing
, the wind
direction descends from the highest position.
Series of
operation
• In COOL/DRY operation, the flap does not
stop as it directs downward. If stopping the
flap as it directs downward during swing
operation, it stops after moving to the 3rd
position from the highest position.
Initial setup
Display when stopping the swing
Fan/Heat
operation
Cool/Dry
operation
22
TIMER OPERATION
A type of timer operation can be selected from the following three types.
OFF timer
:The operation stops when the time of timer has reached the set time.
Repeat OFF timer : Every time, the operation stops after the set time has passed.
ON timer
:The operation starts when the time of timer has reached the set time.
Timer operation
1
UNIT
2
SET
CL
3
4
1
2
PushTIMER SET button.
• The timer display (type) changes for every
push of the button.
OFF
OFF
ON
• SET DATA and
display flashes.
(OFF timer)
(Repeat OFF timer)
(ON timer)
No display
Push
to select “SETTIME”.
For every push of
button, the set time increases in the unit of 0.5 hr (30 minutes).
The maximum set time is 72.0 hr.
For every push of
button, the set time decreases in the unit of 0.5 hr (30 minutes).
The minimum set time is 0.5 hr.
3
Push SET button.
• SET DATA display disappears and
display goes on.
(When ON timer is activated, time is displayed, and after time of the timer has been up, displays other
than ON disappear.)
Cancel of timer operation
4
Push CL button.
• TIMER display disappears.
NOTICE
• When the operation stops after the timer reached the preset time, the Repeat OFF timer resumes the
operation by pushing
the set time.
button and stops the operation after the time of the timer has reached
23
HINTS FOR ECONOMICAL OPERATION
Maintain room temperature at comfortable level
Clean air filters
The clogged air filter impairs the performance of the air conditioner.
Clean them every 2 weeks.
Never open doors and windows more often than necessary
To keep cool or warm air in the room, never open doors and windows more often than necessary.
Window curtains
In cooling, close the curtains to avoid direct sunlight.
In heating, close the curtains to keep the heat in.
Get uniform circulation of room air
Gee, chilly
Control
Adjust the air flow direction for the even
circulation of room air.
Clean, please.
Please close
Blows upward
Air flow adjustment
Cool and
dry air
Warm
air
Blows downward
MAINTENANCE
Cleaning of remote controller
CAUTION
• Use a dry cloth to wipe the remote controller.
• A cloth dampened with cold water may be used on the indoor unit if
it is very dirty.
• Never use a damp cloth on the remote controller.
• Do not use a chemically-treated duster for wiping or leave such
materials on the unit for long. It may damage or fade the surface of
the unit.
• Do not use benzine, thinner, polishing powder, or similar solvents for
cleaning. These may cause the plastic surface to crack or deform.
24
If you do not plan to use the unit for more than 1 month
(1) Operate the fan for 3 to 4 hours to dry inside the unit
• Operate “FAN ONLY” mode with set temperature 30°C.
(2) Stop the air conditioner and turn off the main power switch or the
circuit breaker.
Checks before operation
(1) Check that the air filters are installed.
(2) Check that the air outlet or inlet is not blocked.
(3) Turn on the main power switch or the circuit breaker for the mains
AC outlet to turn on the air conditioner.
FAN ONLY operation or
thermo.-off operation
WARNING
Make sure to ask the qualified maintenance professional for cleaning.
Turn off the main power supply switch or breaker before the unit maintenance.
Before maintenance, be sure to turn off the leakage breaker.
Cleaning of air filter
• If
is displayed on the remote controller, maintain the air filter.
• Clogging of the air filter reduce cooling/heating performance.
Cleaning of panel and air filter
Suction grille
Preparation :
1. Turn off the air conditioner by the remote controller.
2. Open the suction air port.
Button
• Slide the button of the suction air port inward, and open the suction port
slowly while holding it.
Clean the panel and air filter with water:
• Wipe down the panel and air filter with a sponge or towel moistened with
a kitchen detergent. (Do not use any metallic brush for cleaning.)
• Carefully rinse the panel and air filter to wash out the detergent.
• After rinsing the panel and air filter with water, dry it in the shade.
Suction grille
3. Close the suction air port.
• Close the suction air port, slide the button outward, and fix the
suction port securely.
Button
CAUTION
• Do not start the air conditioner while leaving the panel and air filter removed.
• Push the filter reset button. (
indication will be turn off.)
Cleaning of Air Filters
• Recommended cleaning intervals: Every two weeks.
• If the air filters are not cleaned, it not only reduce the cooling a
performance of air conditioner but causes a failure in the air
conditioner such as water falling in drops.
Strap to
prevent falling
Preparation :
1. Stop the operation by remote controller.
2. Dismount the air filter.
Push
Air filter
25
Use a vacuum cleaner to remove dust from the filters or wash them with water.
• After rinsing the air filters with water, dry them in the shade.
• Set the air filter into the air conditioner.
Cleaning of discharge flap
The discharge flap can be removed to clean.
1. Remove the discharge flap.
• Holding the both ends of the discharge flap,
remove the flap sagging the center downward.
2. Cleaning with water
2
Insert in the flap sagging
down the center downward.
• If the dirt is terrible, clean the flap by tepid
water with neutral detergent or water.
1
Insert
3. Mount the discharge flap.
• First push in one side of the flap, and
then insert the other side sagging the
center downward.
Be careful to the direction of the flap when mounting.
Mount the flap so that the side with the mark faces upward and the arrow direction of the mark directs.
NOTE
For Air conditioning system which is operated regularly, cleaning and maintenance of the indoor/outdoor
units are strongly recommended.
As a general rule, if an indoor unit is operated for about 8 hours daily, the indoor/outdoor units will need to
be cleaned at least once every 3-MONTH. This cleaning and maintenance shall be carried out by a
qualified person.
Failure to clean the indoor/outdoor units regularly will result in poor performance, icing, water leaking and
even compressor failure.
26
AIR CONDITIONER OPERATIONS AND PERFORMANCE
3 minutes protection function
3-minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main
power switch/circuit breaker is turned on for re-starting the air conditioner.
Power failure
Power failure during operation will stop the unit completely.
• To restart the operation, push the START/STOP button on the remote controller.
• Lightning or a wireless car telephone operating nearby may cause the unit to malfunction. Turn off the main
power switch or circuit breaker and then turn them on again. Push the START/STOP button on the remote
controller to restart.
Heating characteristics
Preheating operation
The air conditioner will not deliver warm air immediately after it is turned on. Warm air will start to flow out
after approximately 5 minutes when the indoor heat exchanger warmed up.
Warm air control (In heating operation)
When the room temperature reaches the set temperature, the fan speed is automatically reduced to prevent
to blow cold draft. At this time, the outdoor unit will stop.
Defrosting operation
If the outdoor unit is frosted during the heating operation, defrosting starts automatically (for approximately
2 to 10 minutes) to maintain the heating capacity.
• The fans in both indoor and outdoor units will stop during the defrosting operation.
• During the defrosting operation, the defrosted water will be drained from the bottom plate of the outdoor
unit.
Heating capacity
In the heating operation, the heat is absorbed from the outside and brought into the room. This way of heating
is called heat pump system. When the outside temperature is too low, it is recommended to use another
heating apparatus in combination with the air conditioner.
Attention to snowfall and freeze on the outdoor unit
• In snowy areas, the air inlet and air outlet of the outdoor unit are often covered with snow or frozen up.
If snow or freeze on the outdoor unit is left as it is, it may cause machine failure or poor warming.
• In cold areas, pay attention to the drain hose so that it perfectly drains water without water remaining inside
for freeze prevention. If water freezes in the drain hose or inside the outdoor unit, it may cause machine
failure or poor warming.
Air conditioner operating conditions
For proper performance, operate the air conditioner under the following temperature conditions:
Cooling
Outdoor temperature
Room temperature
: –5°C to 43°C
operation
: 21°C to 32°C (Dry valve temp.), 15°C to 24°C (Wet valve temp.)
Room relative humidity – less than 80 %. If the air conditioner operates
in excess of this figure, the surface of the air conditioner may cause dewing.
CAUTION
Dry operation Outdoor temperature
Room temperature
: 15°C to 43°C (Maximum suction air temp. 46°C)
: 17°C to 32°C
Heating
Outdoor temperature
Room temperature
: –15°C to 15°C (Wet valve temp.)
: 15°C to 28°C (Dry valve temp.)
operation
If air conditioner is used outside of the above conditions, safety protection may work.
27
RE-INSTALLATION
DANGER
Ask the dealer or an installation professional to re-install the air conditioner to a new place or
move it to another place and to observe the following items.
If the air conditioner is inappropriate installed by yourself, it may cause electric shock or fire.
Do not install the air conditioner in the following places
• Do not install the air conditioner in any place within 1 m from a TV, stereo, or radio set. If the unit is installed
in such place, noise transmitted from the air conditioner affects the operation of these appliances.
• Do not install the air conditioner near a high frequency appliance (sewing machine or massager for business
use, etc.), otherwise the air conditioner may malfunction.
• Do not install the air conditioner in a humid or oily place, or in a place where steam, soot, or corrosive gas is
generated.
• Do not install the air conditioner in a salty place such as seaside area.
• Do not install the air conditioner in a place where a great deal of machine oil is used.
• Do not install the air conditioner in a place where it is usually exposed to strong wind such as in seaside
area or on the roof or upper floor of a building.
• Do not install the air conditioner in a place where sulfureous gas generated such as in a spa.
• Do not install the air conditioner in a vessel or mobile crane.
Be careful with noise or vibrations
• Do not install the air conditioner in a place where noise by outdoor unit or hot air from its air outlet annoys
your neighbors.
• Install the air conditioner on a solid and stable foundation so that it prevents transmission of resonating,
operation noise and vibration.
• If one indoor unit is operating, some sound may be audible
from other indoor units that are not operating.
TROUBLES AND CAUSES
CAUTION
If any of the following conditions occur, turn off the main power supply switch and immediately contact the
dealer :
• The operation lamps flash at short intervals (5 Hz) even though you have tried turning off the power
supply and turning on again after 2 or 3 minutes.
• Switch operation does not work properly.
• The main power fuse often blows out, or the circuit breaker is often activated.
• A foreign matter or water fall inside the air conditioner.
• Any other unusual conditions are observed.
28
Before you ask for servicing or repairs, check the following points.
Inoperative
• The main power switch is turned off.
• The circuit breaker is activated to cut off power supply.
• The main power fuse has blown out.
• Stoppage of electric current.
Does not cool well or heat well
• The air inlet and/or outlet of the outdoor unit is blocked.
• Doors or windows are opened.
• The fan speed is set to low.
• The air conditioner is set in the DRY mode.
• The set temperature is too high. (In cooling operation)
• The set temperature is too low. (In heating operation)
Indoor unit or outdoor unit makes a strange noise.
• When the temperature suddenly changes, the indoor or outdoor unit
occasionally makes a strange noise because of expansion/
contraction of parts or change of refrigerant flow.
The room air is smelly or a bad odor comes from the air conditioner.
• Smells impregnated in the walls‚ carpets, furniture, clothing, or furs, come out.
Outdoor unit is frosted in heating operation.
Water drains from outdoor unit.
• The outdoor unit is sometimes frosted in heating operation.
In that case, the unit automatically performs defrosting
(for 2 to 10 minutes) for increasing the heating efficiency.
Calm
• In defrosting operation, both the indoor and outdoor units stop air flow.
• Hiss sound is heard when flow of the refrigerant is changed for defrosting.
• Resultant water of automatic defrosting in heating operation drains from
outdoor unit.
Air flow changes though the FAN button is not set to the AUTO mode.
• When the temperature of blown air drops in heating operation,
the air conditioner automatically changes or stops air flow from the
indoor unit not to make persons in the room feel chilly.
• Air flow from the indoor unit is occasionally changed in the cooling operation.
A white mist of chilled air or water is generated from the outdoor unit.
• The indoor unit in cooling operation or the outdoor unit in defrosting
operation occasionally steams.
29
30
Accessory parts and Parts to be procured locally
r Accessory parts
Part name
Q’ty Shape
Usage
Part name
Q’ty
Shape
Usage
Installation
Manual
This
1
(Be sure to hand over to customers)
manual
Washer
8
For hanging-down unit
Heat insulating
pipe
For heat insulation of pipe
connecting section
2
Hose band
1
1
1
1
For connecting drain pipe
Installation
pattern
For confirmation of ceiling opening
and main unit position
1
——
For adjusting core-out of drain
pipe
Flexible hose
Heat insulator
Installation
gauge
For positioning of ceiling position
(united with installation pattern)
2
4
For sealing of wire connecting port
(Be sure to hand over to customers)
Pattern fixing
screw
M5 x 16L For attach the installation pattern
Owner’s
Manual
For heat insulation of drain
connecting section
Heat insulator
1
<Separate sold parts>
Part name
Q’ty Shape
Usage
Standard wired
remote controller
1
r Parts to be procured locally
Connecting pipe (Liquid side)
Connecting cable
(6.35mm (diam.), Nominal (diam.) 1/4” thick 0.8mm)
RAV-SM560UT-E, RAV-SM560AT-E
H07RN-F or 245IEC66 (1.5mm² or more)
(9.52mm (diam.), Nominal (diam.) 3/8” thick 0.8mm)
RAV-SM800UT-E, RAV-SM800AT-E
Thermal insulation for refrigerant pipe
(10mm or more, thermal insulating foam polyethylene)
Connecting pipe (Gas side)
(12.7mm (diam.), Nominal (diam.) 1/2” thick 0.8mm)
RAV-SM560UT-E, RAV-SM560AT-E
Thermal insulation for drain pipe
(10mm or more, foam polyethylene)
(15.9mm (diam.), Nominal (diam.) 5/8” thick 1.0mm)
RAV-SM800UT-E, RAV-SM800AT-E
Drain pipe (Outer 26mm (diam.))
Tapes
Power supply cord
2.5mm² (H07RN-F or 245IEC66) or 3.5mm² (AWG-12)
Grounding cable (2.0mm (diam.) or more)
31
1
PRECAUTIONS FOR SAFETY
• Ensure that all Local, National and International regulations are satisfied.
• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the installation work, perform a trial operation to check for any problem.
Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
• Ask the customer to keep the Installation Manual together with the Owner’s Manual.
CAUTION
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT
DESTROY OZONE LAYER.
The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure
is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil
has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or
refrigerating oil does not enter the refrigerating cycle.
To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging
port of the main unit and installation tools are charged from those for the conventional refrigerant.
Accordingly the exclusive tools are required for the new refrigerant (R410A).
For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does
not enter. Moreover, do not use the existing piping because there are problems with pressure-resistance force
and impurity in it.
CAUTION
To Disconnect the Appliance from Main Power Supply.
This appliance must be connected to the main power supply by means of a switch with a contact separation of
at least 3 mm.
The installation fuse (25A D type
) must be used for the power supply line of this conditioner.
WARNINGS
• Ask an authorized dealer or qualified installation professional to install/maintain the air
conditioner.
Inappropriate installation may result in water leakage, electric shock or fire.
• Turn off the main power supply switch or breaker before attempting any electrical work.
Make sure all power switches are off. Failure to do so may cause electric shock.
• Connect the connecting cable correctly.
If the connecting cable is connected in a wrong way, electric parts may be damaged.
• When moving the air conditioner for the installation into another place, be very careful not
to enter any gaseous maller other than the specified refrigerant into the refrigeration cycle.
If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes
abnormally high and it resultingly causes pipe burst and injuries on persons.
• Do not modify this unit by removing any of the safety guards or by by-passing any of the
safety interlock switches.
• Exposure of unit to water or other moisture before installation may cause a short-circuit of
electrical parts.
Do not store it in a wet basement or expose to rain or water.
32
1
PRECAUTIONS FOR SAFETY
• After unpacking the unit, examine it carefully if there are possible damage.
• Do not install in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
• When the air conditioner is installed in a small room, provide appropriate measures to
ensure that the concentration of refrigerant leakage occur in the room does not exceed the
critical level.
• Install the air conditioner securely in a location where the base can sustain the weight
adequately.
• Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.
• If refrigerant gas has leaked during the installation work, ventilate the room immediately.
If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.
• After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas might
generate.
• Electrical work must be performed by a qualified electrician in accordance with the
Installation Manual. Make sure the air conditioner uses an exclusive power supply.
An insufficient power supply capacity or inappropriate installation may cause fire.
• Use the specified cables for wiring connect the terminals securely fix. To prevent external
forces applied to the terminals from affecting the terminals.
• Be sure to provide grounding.
Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.
• Conform to the regulations of the local electric company when wiring the power supply.
Inappropriate grounding may cause electric shock.
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible
gas.
If a combustible gas leaks, and stays around the unit, a fire may occur.
33
2
SELECTION OF INSTALLATION PLACE
WARNING
• Install the air conditioner at enough strong place to withstand the weight of the unit.
If the strength is not enough, the unit may fall down resulting in injury.
• Install the air conditioner at a height 2.5m or more from the floor.
If you insert your hands or others directly into the unit while the air conditioner operates, it is dangerous
because you may contact with revolving fan or active electricity.
CAUTION
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible
gas.
If a combustible gas leaks and stays around the unit, a fire may occur.
Upon approval of the customer, install the air conditioner in a place that satisfies the
following conditions.
• Place where the unit can be installed horizontally.
• Place where a sufficient servicing space can be ensured for safety maintenance and check.
• Place where drained water will not cause any problem.
Avoid installing in the following places.
• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas
(hot spring). (Should the unit be used in these places, special protective measures are needed.)
• Place exposed to oil, vapor, oil smoke or corrosive gas.
• Place where organic solvent is used nearby.
• Place close to a machine generating high frequency.
• Place where the discharged air blows directly into the window of the neighboring house. (For outdoor unit)
• Place where noise of the outdoor unit is easily transmitted.
(When installing the air conditioner on the boundary with the neighbor, pay due attention to the level of noise.)
• Place with poor ventilation. (Before air ducting work, check whether value of air volume, static pressure and
duct resistance are correct.)
Installation space
Secure the specified space in the figure for installation and servicing.
1000 or more
1000 or more
34
2
SELECTION OF INSTALLATION PLACE
Selection of installation place
Discharge direction
In case of continued operation of the indoor unit under
high-humidity conditions as described below, dew may
condense and water may drop.
As shown in the following figure, No. of
discharge directions can be selected according
to the shape of rooms and installation position.
Especially, high-humidity atmosphere (dew point
temperature : 23°C or more) may generate dew inside the
ceiling.
RAV-SM560UT-E to RAV-SM800UT-E
1. Unit is installed inside the ceiling with slated roof.
2. Unit is installed at a location using inside of the ceiling
as fresh air take-in path.
Refrigerant pipe side
3. Kitchen
If installing a unit at such place, put insulating material
(glass wool, etc.) additionally on all the positions of the
indoor unit which come to contact with high-humidity
atmosphere.
As shown in the following figure direction are
not acceptable.
RAV-SM560UT-E to RAV-SM800UT-E
Advice
Set a check service opening panel at right side of the unit
(size: 450 x 450mm or more) for piping, maintenance, and
servicing.
• To change discharge direction, use a shielding
plate.
• When attaching a shielding plate, remove the
ceiling panel and insert the shielding plate into
the discharge port as shown in the figure below.
Ceiling height
Model RAV-
Possible installe ceiling height
SM560UT-E, SM800UT-E
Up to 3.8m
When the height of the ceiling exceeds the distance of the
item Standard/4-way in Table below, the hot air is difficult to
reach the floor. Therefore, it is necessary to change the
setup value of the high ceiling switch or discharge direction.
Shielding plate
(Prepared locally)
REQUIREMENT
• When using the air conditioner with 2-way discharge
system with the standard setting (at a shipment), it
may stop abnormally in heating. Therefore, change
the setting switch according to the number of
discharge direction and the ceiling height.
WARNING
Install the air conditioner certainly to sufficiently
withstand the weight.
• When using the air conditioner with 2-way/3-way
discharge system, a strong wind blows directly if
the ceiling height is lower than the standard.
Therefore, change the setting switch according to
height of the ceiling.
If the strength is insufficient, the unit may fall
down resulting in human injury.
Perform a specified installation work to guard
against an earthquake.
• When using the high ceiling (1) or (2) with 4-way
discharge system, the draft is apt to be felt due to
drop of the discharge temperature.
An incomplete installation can cause accidents
by the units falling and dropping.
Height list of ceiling possible to be installed
(Unit : m)
Model
RAV-SM560UT-E
RAV-SM800UT-E
High ceiling setup
Set data
No. of discharge direction 4-way
3-way
3.2
2-way
4-way
3-way
3.3
2-way
Standard (at shipment)
High ceiling (1)
2.8
3.2
3.5
3.5
3.8
—
3.0
3.3
3.6
3.6
3.8
—
0000
3.5
3.5
0001
High ceiling (2)
3.8
3.8
0003
35
External view
REQUIREMENT
Strictly comply with the following rules to prevent damage of the indoor units and human injury.
• Do not put a heavy article on the indoor unit. (Even units are packaged)
• Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, be
sure to use buffering cloth, etc. to not damage the unit.
• To move the indoor unit, hold the hooking metals (4 positions) only.
Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, or resin parts, etc.).
• Carry the package by two or more persons, and do not bundle it with PP band at positions other than
specified.
Ceiling bottom surface
173
113
45
Ø162
80
Ø162
Knockout square
hole for divide duct
For Ø150
Ceiling bottom surface
240
Refrigerant pipe
connecting port
105
840 Unit external dimension
434.5
105
(2 positions)
97
120
A
Take-in port
of pipes
Electric parts box
Refrigerant pipe
connecting port
B
105
Ceiling
bottom
surface
130
210
Knockout square hole
for divide duct
For Ø150
381.6
723 Hanging bolt pitch
950 Panel external dimension
860 to 910 Ceiling opening dimension
Hanging bolt
480
227
M10 or Ø3/8
(To be procured locally)
Drain pipe connecting port
A
B
RAV-SM560UT-E Ø6.4 Ø12.7
RAV-SM800UT-E Ø9.5 Ø15.9
Ceiling bottom
surface
Ceiling panel (sold separately)
Considering pipe/wire connecting work inside the ceiling after the indoor unit has been hanged, select an installation
place and determine piping direction.
• If the ceiling has already been set before hanging the main unit, prepare refrigerant pipe, drain pipe, indoor
connecting wire, remote controller cord, etc. up to the place where pipe and wire can be connected.
• Check the size of the indoor unit, and match the indoor unit size, with ceiling opening size and that position using
the attached installation pattern.
(Attach the pattern to the lower side of indoor unit with attached four screws M5 x 16L.)
36
2
SELECTION OF INSTALLATION PLACE
Opening a ceiling and installation of hanging bolts
<Treatment of ceiling>
The ceiling differs according to structure of building. For details, consult your constructor or interior finish contractor.
In the process after the ceiling board has been removed, it is important to reinforce ceiling foundation (frame) and to
keep horizontal level of installed ceiling correctly in order to prevent vibration of ceiling board.
(1) Cut and remove the ceiling foundation.
(2) Reinforce the cut surface of ceiling foundation, and add ceiling foundation for fixing the end of ceiling board.
<Installation of hanging bolt>
Use M10 hanging bolts (4 pcs, to be local procure). Matching to the existing structure, set pitch according to size in
the unit external view as shown below.
New concrete slab
Steel flame structure
Existing concrete slab
Install the bolts with insert brackets or anchor
bolts.
Use existing angles or install new
support angles.
Use a hole-in anchors, hole-in
plugs, or a hole-in bolts.
Hanging bolt
Rubber
Anchor bolt
(Pipe hanging
(Blade type
bracket)
(Slide type
bracket)
anchor bolt)
Hanging bolt
Support angle
(1)
Installation of ceiling opening and hanging bolt
Hanging bolt
(W3/8 or M10)
M10 flat washer
(Accessory)
Adjust nut position (lower side) so that clearance between the
attached washer (lower side) and ceiling board is 88mm.
Nut
(2)
(W3/8 or M10)
M10 flat washer
(Accessory)
Nut
(W3/8 or M10)
Hanging bolt
Nut (Upper side)
Hanging bolt
Washer
(1) Required those other than M10 flat washer at site.
(Upper side)
(2) To prevent falling-off of bolt (safety), be sure to
set it just under the hanging bracket as shown
in the figure.
(Hanging bracket
main unit)
Level
Washer
(Lower side)
Nuts (Lower side)
Level vial (Horizontal: within 5mm)
Ceiling boards
Hanging bolt
Indoor unit
Hanging bracket
Hanging
metal
2) 12 to 17mm
1) 20 to 30mm
• Hang up the main unit by hanging the nut of hanging bolt to
Ceiling board
T groove of hanging bracket of the main unit.
Installation
gauge
• Using the level vial, etc., set the horizontal level of the main
unit within 5mm.
• Using the installation gauge, check and adjust the positional
relation between the main unit and ceiling opening hole, and
hanging-up height of the main unit. (Direction to be used is
indicated on the installation gauge.)
1) Check lower side of the indoor unit locates at position (12
to 17) mm higher than the lower surface of the ceiling
board. (4 corners)
+5
–0
1) 12 mm
Indoor unit
Ceiling
board
2) Check clearance between side of the indoor unit and the
ceiling board is 20 to 30mm. (Common to 4 corners)
Installation
gauge
2) 20 to 30mm
37
REQUIREMENT
Installation of ceiling panel
(Sold separately)
Before installation of the indoor unit, be sure to
remove the cushion for transportation between the
fan and the bell mouth. Running the unit without
removing the cushion may damage the fan motor.
Install the ceiling panel according to Installation
Manual attached with it after piping/wiring work has
completed.
Check that installation of indoor unit and ceiling
opening part is correct, and then install it.
REQUIREMENT
Joint the connecting sections of ceiling panel,
ceiling surface, ceiling panel and indoor unit
closely.
Any gap between them will cause air leakage and
this generate condensation or water leakage.
Installation of ceiling opening and
hanging bolt
Be sure to remove the cushion for transportation
between the fan and the bell mouth.
For installation of the wired remote controller, follow
the Installation Manual attached with the remote
controller.
• Pull out the remote controller cord together with the
refrigerant pipe or drain pipe.
Be sure to pass the remote controller cord through
upper side of the refrigerant pipe and drain pipe.
38
3
DRAIN PIPING WORK
Piping/Heat insulating material
CAUTION
Require the following materials for piping and heat
insulating at site.
• Following the Installation Manual,
perform the drain piping work so that
water is properly drained, and apply a
heat insulation so as not to cause a dew.
Inappropriate piping work may result in
water leakage in the room and wet of
furniture.
Hard vinyl chloride pipe VP25
(Outer dia. : Ø32mm)
Piping
Foam polyethylene :
Heat insulator
Thickness 10mm or more
REQUIREMENT
1.5m to 2m
Support
bracket
• Be sure to perform heat insulation of the drain pipes of the indoor unit.
• Never forget to perform heat insulation of the connecting part with the indoor
unit. An incomplete heat insulation causes dewing.
1/100 or more
downward
Heat
insulator
• Set the drain pipe with downward slope (1/100 or more), and do not make
swelling or trap on the piping. It may cause an abnormal sound.
Arched
shape
• For length of the traversing drain pipe, restrict to 20m or less.
In case of a long pipe, provide support brackets with interval of
1.5 to 2m in order to prevent waving.
As long as possible (10cm)
Trap
VP25
VP25
VP25
Extended
ventilating pipe
• Set the collective piping as shown in
the right figure.
VP30 or more
Downward slope
1/100 or more
• Be sure not to apply force to the
connecting part of the drain pipe.
• The hard vinyl-chloride pipe cannot be directly connected to the drain pipe connecting port of the indoor unit.
For connection with the drain pipe connecting port, be sure to use/fix the attached flexible hose with the hose
band, otherwise a damage or water leak is caused on the drain pipe connecting port.
VP25 vinyl chloride pipe
Align the attached hose band to the
end of hose, set the tightening
position upward, and then tighten it.
Attached hose band
(To be local procure)
Drain pipe
connecting port
(Transparent)
Drain pipe connecting
port (Hard socket)
Attached flexible hose
Flexible hose VP25 vinyl chloride pipe
(Accessory)
(To be local procure)
Socket for VP25
(To be local procure)
Soft socket
Socket for VP25 vinyl chloride pipe
(To be local procure)
Hard socket
Adhesive inhibited :
Use the attached flexible hose and hose band for connecting the drain hose to the clear drain socket.
If applying the adhesive, socket will be damaged and cause water leakage.
Flexible hose
Use the attached flexible hose to adjust core discrepancy
of the hard vinyl chloride pipe or to adjust the angle.
• Do not use the flexible hose as stretched, or do not
deform it more extent than that in the following figure.
Riser (Trap)
max
45˚
• Be sure to fix the soft end of the flexible hose with the
attached hose band.
max
45˚
• Use the flexible hose on a horizontal level.
90˚ Bend
39
Connection procedure
Check the draining
Connect a socket and a hard vinyl chloride pipe.
In the test run, check that water drain is properly
performed and water does not leak from the
connecting part of the pipes.
• Using adhesive agent for vinyl chloride pipe, connect
the drain pipes certainly so that water does not leak.
Be sure to check draining also when installed in
heating period.
• It takes approx. 10 hours to dry and harden the
adhesive agent. During this period, do not apply
force to the connecting part with the drain pipe.
Using a pitcher or hose, pour water (1500 to 2000cc)
into the discharge port before installation of the ceiling
panel.
Perform heat insulating.
• As shown in the figure, cover the flexible hose and
hose band with the attached heat insulator up to the
bottom of the indoor unit without gap.
Pour water gradually so that water does not spread on
the motor of the drain pump.
Heat
exchanger
Drain pan
Hose band
Flexible hose
Heat insulator to be
Attached heat insulator
procured locally
Hard vinyl chloride pipe
• After the electric work has finished, pour water
during COOL mode operation.
• If the electric work has not yet finished, pull out the
float switch connector (CN34 : Red) from the electric
parts box, and check draining by plugging the single
phase 220/230/240V power to the terminal blocks 1
and 2.
Drain up
If doing so, the drain pump motor operates.
When a downward grading cannot be secured on the
drain pipe, drain-up up to 640mm is possible.
• Test water drain while checking the operation sound
of the drain pump motor.
(If the operation sound changes from continuous
sound to intermittent sound, water is normally
drained.)
Set downward grading immediately after raising up
vertically.
After the check, the drain pump motor runs,
connecting the float switch connector.
(In case of check by pulling out the float switch
connector, be sure to return the connector to the
original position.)
360mm
or less
Single phase 220/230/240V
1
2
White
Indoor unit
CN34
(RED)
Red
Underneath of ceiling
Black
Pull out connector CN34 (Red) from P.C. board.
Black
40
4
REFRIGERANT PIPING
• Flaring dia meter size : A (Unit : mm)
Refrigerant Piping
+0
A
-
0.4
1. If the outdoor units are to be mounted on a wall,
make sure that the supporting platform is
sufficiently strong. The platform should be
designed and manufactured to maintain its strength
over a long period of time, and sufficient
consideration should be given to ensuring that the
outdoor unit will not fall.
Outer diam. of copper pipe
R410A
9.1
R22
9.0
6.35
9.52
12.7
15.9
13.2
16.6
19.7
13.0
16.2
19.2
2. Use copper pipe with 0.8 mm or more thickness.
In case of flaring for R410A with the conventional
3. Flare nut and flare works are also different from
those of the conventional refrigerant.
*
flare tool, pull it out approx.
A
0.5 mm more than that for R22 to
adjust to the specified flare size.
The copper pipe gauge is useful
for adjusting projection margin size.
Take out the flare nut attached to the main unit of
the air conditioner, and use it.
CAUTION
IMPORTANT 4 POINTS FOR PIPING WORK
1. Remove dust and moisture from the inside of
the connecting pipes.
Tightening connection
2. Tight connection (between pipes and unit)
CAUTION
3. Evacuate the air in the connecting pipes using
VACUUM PUMP.
• Do not apply excessive torque. Otherwise, the
nut may crack depending on the conditions.
4. Check the gas leakage. (Connected points)
(Unit : N•m)
Outer diam. of copper pipe
Tightening torque
Permissible Piping Length and Heat
6.35 mm (diam.)
9.52 mm (diam.)
12.7 mm (diam.)
15.9 mm (diam.)
14 to 18 (1.4 to 1.8 kgf•m)
33 to 42 (3.3 to 4.2 kgf•m)
50 to 62 (5.0 to 6.2 kgf•m)
63 to 77 (6.3 to 7.7 kgf•m)
The maximum piping length from the outdoor to indoor unit
30 m (Chargeless 20m)
(RAV-SM560AT-E)
50 m (Chargeless 20m)
(RAV-SM800AT-E)
The maximum height difference outdoor/indoor unit
Outdoor unit is above
Outdoor unit is below
30m
15m
• Tightening torque of flare pipe connections
Pressure of R410A is higher than that of R22.
(Approx. 1.6 times) Therefore, using a torque
wrench, tighten the flare pipe connecting sections
Flaring
Insert a flare nut into the pipe, and flare the pipe.
Flare at
which connect the indoor
indoor
As the flaring sizes of R410A differ from those of
refrigerant R22, the flare tools newly manufactured for
R410A are recommended.
However, the conventional tools
can be used by adjusting
projection margin
and outdoor units of the
specified tightening torque.
Incorrect connections may
cause not only a gas
unit side
B
leak, but also a trouble
of the refrigeration cycle.
of the copper pipe.
Flare at
outdoor
unit side
• Projection margin in flaring : B (Unit : mm)
Rigid (Clutch type)
Align the centers of the connecting pipes and tighten
the flare nut as far as possible with your fingers. Then
tighten the nut with a spanner and torque wrench as
shown in the figure.
R410A tool used
R410A R22
Conventional tool used
R410A R22
Outer diam. of
copper pipe
6.35 to 9.52 0 to 0.5 (Same as left) 1.0 to 1.5 0.5 to 1.0
Half union
Flare nut
Imperial (Wing nut type)
Externally
threaded side
Internally
threaded side
Outer diam. of copper pipe
6.35 or 9.52
R410A
R22
1.5 to 2.0
2.0 to 2.5
1.0 to 1.5
1.5 to 2.0
12.7 or 15.9
Use a wrench to secure.
Use a torque wrench to tighten.
41
5
EVACUATING
REQUIREMENT
AIR PURGE
Evacuate the air in the connecting pipes and in the
indoor unit using vacuum pump.
• Charging an excessive or too little amount of
refrigerant causes a trouble of the compressor.
Be sure to charge the refrigerant of specified
amount.
Do not use the refrigerant in the outdoor unit.
For details, see the manual of vacuum pump.
• A personnel who charged the refrigerant should
write down the pipe length and the added
refrigerant amount in the nameplate attached to
the service panel of the outdoor unit. It is
necessary to troubleshoot the compressor and
refrigeration cycle malfunction.
Use a vacuum pump
Be sure to use a vacuum pump with counter-flow
prevention function so that inside oil of the pump does
not flow backward into pipes of the air conditioner
when the pump stops.
1. Connect the charge hose from the manifold valve to
the service port of the gas side packed valve.
Open the valve fully
2. Connect the charge hose to the port of vacuum
pump.
Open the valve of the outdoor unit fully. A 4mm-
hexagonal wrench is required for opening the valve.
3. Open fully the low pressure side handle of the
gauge manifold valve.
Gas leak check
4. Operate the vacuum pump to start evacuating.
Check with a leak detector or soap water whether gas
leaks or not, from the pipe connecting section or cap
of the valve.
Perform evacuating for about 35 minutes if the
piping length is 30 meters total for model SM560
and 50 meters for model SM800
(assuming a pump capacity of 27 liters per minute.)
Then confirm that the compound pressure gauge
reading is –101 kPa ( –76 cmHg).
REQUIREMENT
Use a leak detector manufactured exclusively for
HFC refrigerant (R410A, R134a, etc.).
5. Close the low pressure side valve handle of gauge
manifold.
6. Open fully the valve stem of the packed valves
(both sides of Gas and Liquid).
Thermal insulation process
7. Remove the charging hose from the service port.
8. Securely tighten the caps on the packed valves.
Apply thermal insulation for the pipes separately at
liquid side and gas side.
For the thermal insulation to the pipes at gas side, be
sure to use the material with heat-resisting
temperature 120°C or higher.
REQUIREMENT
Using the attached thermal insulation material, apply
the thermal insulation to the pipe connecting section of
the indoor unit securely without gap.
For the tools such as charge hose, etc., use those
manufactured exclusively for R410A.
Refrigerant amount to be added
REQUIREMENT
For addition of the refrigerant, add refrigerant “R410A”
referring to the attached Installation Manual.
Apply the thermal insulation to the pipe connecting
section of the indoor unit securely up to the root
without exposure of the pipe. (The pipe exposed to
the outside causes water leak.)
Be sure to use a scale to charge the refrigerant of
specified amount.
42
5
EVACUATING
Packed valve handling precautions
Compound
Pressure gauge
pressure gauge
• Open the valve stem all the way out ; do not try to
open it beyond the stopper.
–101kPa
(–76cmHg)
Manifold valve
• Securely tighten the valve stem cap at the torque as
follows:
Handle Lo
Handle Hi
(Keep fully closed)
Charge hose
Gas side (15.9 mm (diam.)
)
63 to 77 N•m (6.3 to 7.7 kgf•m)
Charge hose
Vacuum pump
adapter for
counter-flow
prevention
Gas side (12.7 mm (diam.)
)
50 to 62 N•m (5.0 to 6.2 kgf•m)
Packed valve
at liquid side
Gas side (9.52 mm (diam.)) 33 to 42 N•m (3.3 to 4.2 kgf•m)
Liquid side (6.35 mm (diam.)) 14 to 18 N•m (1.4 to 1.8 kgf•m)
Service port
14 to 18 N•m (1.4 to 1.8 kgf•m)
Vacuum
pump
Hexagonal wrench is required.
Service port
(Valve core (Setting pin))
Packed valve at gas side
<For RAV-SM800AT-E model>
• As shown in the figure, be sure to use a double
spanner to loosen or tighten the flare nut of the valve
at gas side. If using a single spanner, the nut cannot
be tightened with necessary tightening torque.
On the contrary, use a single spanner to loosen or
tighten the flare nut of the valve at liquid side.
Cover
Cap
Piping valve
Loosened
Tightened
Flare nut
SM800 type valve at gas side
Cover
Never put the spanner or
torque wrench, etc. on
the cover.
The valve may be broken.
43
6
ELECTRICAL WORK
WARNING
1. Using the specified cables, ensure to connect the wires, and fix wires securely so that the
external tension to the cables do not affect the connecting part of the terminals.
Incomplete connection or fixation may cause a fire, etc.
2. Be sure to connect earth wire. (Grounding work)
Do not connect the earth wire to gas pipe, city water pipe, lightning rod, or the earth wire of telephone.
Incomplete grounding causes an electric shock.
3. For electric work, strictly follow the Local Regulation in each country and the Installation
Manual, and use an exclusive circuit.
Capacity shortage of power circuit or incomplete installation may cause an electric shock or a fire.
CAUTIONS
• This indoor unit has no power cord.
• If incorrect/incomplete wiring is carried out, it will cause an electrical fire or smoke.
• Be sure to install an earth leakage breaker that is not tripped by shock waves.
If an earth leakage breaker is not installed, an electric shock may be caused.
• Be sure to use the cord clamps attached to the product.
• Do not damage or scratch the conductive core and inner insulator of power and inter-connecting cables when
peeling them.
• Be sure to comply with local regulations on running the wire from outdoor unit to indoor unit (size of wire and
wiring method etc.)
• Use the power cord and Inter-connecting cable of specified thickness, type, and protective devices required.
REQUIREMENT
• For power supply wiring, strictly conform to the Local Regulation in each country.
• For wiring of power supply of the outdoor units, follow the Installation Manual of each outdoor unit.
• Never connect 220/230/240V power to the terminal blocks (A, B, etc.) for control wiring.
(Otherwise, the system will fail.)
• Perform the electric wiring so that it does not come to contact with the high-temperature part of the pipe.
The coating may melt resulting in an accident.
• After connecting cables to the terminal blocks, provide a trap and fix cables with the cable clamp.
• Run the refrigerant piping line and control wiring line in the same line.
• Do not turn on the power of the indoor unit until vacuuming of the refrigerant pipes completes.
Remote controller wiring
2-core non polarity cable is used for the remote controller wiring.
How to wire
1. Connect the connecting cable to the terminal as identified with their respective numbers on the terminal block of
indoor and outdoor unit. H07 RN-F or 245 IEC 66 (1.5 mm2 or more)
2. Insulate the unsheathed redundant cords (conductors) with electrical insulation tape.
Process them so that they do not touch any electrical or metal parts.
3. For inter-unit wiring, do not use a wire jointed to another on the way.
44
6
ELECTRICAL WORK
Cable connection
REQUIREMENT
• Be sure to connect the cables matching the terminal numbers. Incorrect connection causes a trouble.
• Be sure to pass the cables through the bushing of cabling connection port of the indoor unit.
• Keep a margin (Approx. 100mm) on a cable to hang down the electric parts box at servicing, etc.
• The low-voltage circuit is provided for the remote controller. (Do not connect the high-voltage circuit)
• Remove the cover of the electric parts box by taking off the mounting screws (3 positions) and pushing the
hooking section. (The cover of the electric parts box remains hanged to the hinge.)
• Connect the indoor/outdoor connection cables and REMOCON cable to the terminal block of the electric parts
box. (Do not apply tension to the connecting section of the terminal block.)
• Tighten the screws of the terminal block, and fix the cables with cord clamp attached to the electric parts box.
(Do not apply tension to the connecting section of the terminal block.)
• Using the attached thermal insulation material, seal the pipe connecting port. Otherwise, dewing may be caused.
• Mount the cover of the electric parts box without pinching cables.
(Mount the cover after cabling on the ceiling panel.)
Cabling
connecting
port
P.C. board
Hooking section
Electric parts box
Louver connector (CN33: White)
Hinge
Cover of electric parts box
Screws at 3 positions
Power supply Remote controller
terminal block
terminal block
1 2 3
A B
<Thermal insulation to cabling connecting port>
A B C
Adhered surface
Notched section
Cord clamp
Cord clamp
Cabling on the ceiling panel
According to the Installation Manual of the ceiling panel, connect the connector (5P: White) of the ceiling panel to the
connector (CN33: White) on P.C. board of the electric parts box.
45
Cabling
Cabling diagram
1. Remove a screw and then remove cover of the
electric parts box.
Terminal block
for remote controller
cabling of indoor unit
Approx. 200mm
2. Strip wire ends (10 mm).
W : White
B : Black
3. Match wire colors with terminal numbers on indoor
and outdoor units’ terminal blocks and firmly screw
wires to the corresponding terminals.
A
B
W
B
Remote
controller unit
or sensor part
4. Connect the ground wires to the corresponding
terminals.
Remote controller cable
(Local procure)
Remote controller unit or
cable from sensor part
Connecting
part
5. Fix the cable with cord clamp.
6. Fix cover of the parts box and the terminal block
surely with the fixing screws.
Remote controller cabling
Make a loop on the cable for margin of the length
so that the electric parts box can be taken out
during servicing.
Cable from remote
controller unit
Wire joint
Remote controller
Remote controller
cable
10
1
2
3
10
A
B
2
Indoor side
1
3
3
40
30
Indoor/Outdoor
connecting cable
1
L
2
Earth line
Outdoor side
N
Connecting
cable
(Single phase 220/230/240V)
• For details of cabling/installation of the remote
controller, refer to the Installation Manual attached to
in the remote controller.
Remote Controller Cabling
• Strip off approx. 14mm the cable to be connected.
• Non polarity, 2 core cable is used for cabling of the
remote controller.
• Twist cable of the remote controller to be connected
with cable of the remote controller unit (or sensor),
and press-fit them with a wire joint.
Wire joints (White: 2 pieces) are included in the
attachments to the remote controller (sold
separately) or the wireless remote controller kit (sold
separately).
46
7
TEST RUN
Before test run
• Before turning on the power supply, carry out the following procedure.
1) Using 500V-megger, check 1MΩ or more exists between the terminal block 1 to 3 and the earth.
If 1MΩ or less is detected, do not run the unit. Do not apply to the remote controller circuit.
2) Check the valve of the outdoor unit being opened fully.
• To protect the compressor at activation time, leave power-ON for 12 hours or more be for operating.
How to execute a test run
Using the remote controller, operate the unit as usual.
For the procedure of the operation, refer to the attached Owner’s Manual.
A forced test run can be executed in the following procedure if the operation stops by thermo.-OFF.
In order to prevent a serial operation, the forced test run is released after 60 minutes have passed and returns to the
usual operation.
NOTE
Do not use the forced test run for cases other
than the test run because it applies an
excessive load to the devices.
2, 4
3
UNIT
1, 5
In case of wired remote controller
SET CL
Procedure
Description
Keep
button pushed for 4 seconds or more. [TEST] is
displayed on the display part and the selection of mode in the test
mode is permitted.
1
TEST
Push
button.
2
3
4
5
Using
button, select the operation mode, [COOL] or [HEAT].
• Do not run the air conditioner in a mode other than [COOL] or
[HEAT].
• The temperature controlling function does not work during test run.
• The detection of error is performed as usual.
After the test run, push
button to stop a test run.
(Display part is same as procedure 1.
Push
check button to cancel (release from) the test run mode.
([TEST] disappears on the display and the status returns to a
normal.)
47
8
TROUBLESHOOTING
Confirmation and check
CODE No.
When a trouble occurred in the air conditioner, the
check code and the indoor unit No. appear on the
display part of the remote controller.
UNIT No.
R.C. No.
The check code is only displayed during the operation.
If the display disappears, operate the air conditioner
according to the following “Confirmation of error
history” for confirmation.
Check code
Indoor unit No. in which
an error occurred
Confirmation of error history
When a trouble occurred on the air conditioner, the
trouble history can be confirmed with the following
procedure. (The trouble history is stored in memory up
to 4 troubles.)
The history can be confirmed from both operating
status and stop status.
UNIT
3
2
SET CL
1
Procedure
Description
When pushing [SET] and
buttons at the same time for 4
seconds or more, the following display appears.
CODE No.
If [Service check] is displayed, the mode enters in the trouble history
mode.
UNIT No.
1
R.C. No.
• [01 : Order of trouble history] is displayed in CODE No. window.
• [Check code] is displayed in CHECK window.
• [Indoor unit address in which an error occurred] is displayed in
UNIT No.
Every pushing of [
displayed in order.
,
] button used to set temperature, the trouble history stored in memory is
The numbers in CODE No. indicate CODE No. [01] (latest) → [04] (oldest).
2
3
REQUIREMENT
Do not push
button because all the trouble history of the indoor unit will be deleted.
CL
After confirmation, push
button to return to the usual display.
1. Check the troubles according to the above procedure.
2. Ask an authorized dealer or qualified service (maintenance) professional to repair or maintain the air conditioner.
3. More details of the service code are explained in Service Manual.
48
ACCESSORIES
Remote controller
Screws (two pcs.)
PRECAUTIONS FOR SAFETY
WARNING
WARNINGS ABOUT INSTALLATION
• Make sure to ask the qualified installation professional in electric work to install
the air conditioner.
If the air conditioner is inappropriate installed by yourself, it may cause water
leak, electric shock, fire, and so on.
• Ground the air conditioner without fail.
Do not connect the ground wire to gas pipe, water pipe, lightning rod or ground
wire of telephone. If the air conditioner is imperfectly grounded, it may cause
electric shock.
CAUTION
TO DISCONNECT THE APPLIANCE FROM THE MAINS SUPPLY
This appliance must be connected to the mains by means of a switch with a
contact separation of at least 3 mm.
The installation fuse (25A D type
supply line of this conditioner.
) must be used for the power
WARNINGS ABOUT OPERATION
• Avoid cooling the room too strong or exposing the human body to cool breeze
for a long time as it is bad for the health.
• When you notice something abnormal with the air conditioner (smells like
something scorching, poor cooling, etc.), immediately turn off the main switch,
the circuit breaker, from the mains to stop the air conditioner, and contact the
dealer.
If the air conditioner is continuously operated with something abnormal, it may
cause machine failure, electric shock, fire, and so on.
WARNINGS ABOUT MOVEMENT AND REPAIR
• Do not move or repair any unit by yourself.
Since there is high voltage inside the unit, you may get electric shock when
removing the cover and main unit.
• Whenever the air conditioner needs repair, make sure to ask the dealer to do it.
If it is repaired imperfectly, it may cause electric shock or fire.
• When moving the air conditioner for re-installing at another place, ask the
dealer to do it. If it is imperfectly installed, it may cause electric shock or fire.
49
CAUTION
CAUTIONS ABOUT INSTALLATION
• Certainly lay the drain hose for perfect draining.
Bad drainage may cause flooding in the house and getting furniture
wet.
• Make sure to connect the air conditioner to an exclusive AC outlet of
the rated voltage, otherwise the unit may break down or cause a fire.
• Do not install the unit in a place where inflammable gas may leak.
If inflammable gas accumulates around the unit, it may cause a fire.
CAUTIONS ABOUT OPERATION
• Carefully read this manual before starting the air conditioner. There
are many important things to keep in mind for daily operation.
• Do not use this air conditioner for special purposes such as preserv-
ing food, precision instruments, art objects, breeding animals,
growing potted plants, etc.
• Avoid exposing potted plants and animals to the wind of the air
conditioner, since it badly affects the health and growth of them.
• When the air conditioner is operated with a combustion appliance in
the same place, be careful of ventilation to let fresh air enter the
room.
Poor ventilation causes oxygen shortage.
• When the air conditioner is used in a closed room, be careful of
sufficient ventilation of the room. Poor ventilation causes oxygen
shortage.
• Do not touch any switches with wet finger, otherwise you may get an
electric shock.
• Do not place any combustion appliance in a place where it is directly
exposed to the wind of air conditioner, otherwise it may cause
imperfect combustion.
• If the air conditioner won’t be used for a considerably long time, turn
off the main switch or the circuit breaker, for safety. Disconnect from
the power supply prevents the unit from lightning and power supply
surge.
• Check the concrete blocks, etc. of the base of the outdoor unit
occasionally.
If the base is left damaged or deteriorated, the unit may topple over
and inflict an injury to a person as the worst case.
• When cleaning the unit, make sure to turn off the main switch or the
circuit breaker beforehand for preventing you from getting injured by
the electric fan running inside. For details of cleaning method, refer to
“Maintenance” on page 9.
• Do not put anything on the outdoor unit nor step onto it. If you do so,
it may not only topple over the unit but also injure yourself.
• To make the air conditioner operate in its original performance,
operate it within the range of the operating temperature specified in
the instructions.
Otherwise it may cause a malfunction, or water leak from the unit.
• Prevent any liquid from falling into the remote controller. Do not spill
juice, water or any kind of liquid.
50
PARTS NAME
Indoor unit
NOTE :
Parts marked with
XXX
indicate
the locally procured parts.
Connecting duct
Supply air grille
Indoor unit
Duct flange
Air filter
Canvas
Return air grille
Supply air chamber
REMOTE CONTROLLER
Remote controller
Outdoor unit
Air inlet (Side and rear)
Pipes and electric wires
Air outlet
51
PARTS NAME OF REMOTE CONTROLLER
Display section
CODE No.
All display items are shown in right figure for the explanation.
Only selected contents are displayed in actual operation.
SET DATA
UNIT No.
Display
section
SETTING TEST
R.C. No.
• When turning on the leakage breaker at the first time, [SET DATA]
flashes on the display part of the remote controller. While this
display is flashing, the model is being automatically confirmed.
Accordingly, wait for a while after [SET DATA] display has disap-
peared, and then use the remote controller.
Operation
section
UNIT
SET CL
1
9
2
10
CODE No.
SET DATA
UNIT No.
R.C. No.
3
5
11
4
6
SETTING
TEST
12
14
16
13
15
7
8
1
2
3
SET DATA display
10
SWING display
Displayed during setup a timer.
Displayed during up/down movement of the
flap.
Operation mode display
The selected operation mode is displayed.
11
12
Set up temperature display
The selected set up temp. is displayed.
CHECK display
Displayed while the protective device works
or a trouble occurs.
Remote controller sensor display
Displayed while the sensor of the remote
controller is working.
4
5
Timer time display
Set time by the timer is displayed.
(When a trouble occurs, the check code is
displayed.)
13
PRE-HEAT display
Displayed when the heating operation starts or
defrost operation is carried out.
While this indication is displayed, the indoor
fan stops or the mode changes in LOW.
Timer SETIN setup display
When pushing the Timer SET button, the
display of the timer is selected in order of
14
15
No function display
[OFF]
→ [OFF] repeat OFF timer
Displayed if there is no function even if the
button is pushed.
→ [ON]
→ No display.
Fan mode display
The selected fan mode is displayed.
6
Filter display
(AUTO)
(HIGH)
(MED.)
(LOW)
If “FILTER
filter.
” is displayed, clean the air
7
8
9
UP/DOWN grille display
Ventilator operation display
Flap position display
16
TEST run display
Displayed during a test run.
52
Operation section
Push each button to select a desired operation.
• The details of the operation needs to be set up once, the same states are used by pushing
button.
1
7
8
2
4
3
5
9
UNIT
10
SET
CL
6
1
2
Fan mode button
8
button
Selects a fan mode.
When the button is pushed, operation starts,
and it stops by pushing the button again.
Timer set button
When the operation stops, the operation lamp
and all displays disappear.
TIMER SET button is used when the timer is
set up.
9
Operation select button
3
4
Check button
Selects operation mode.
CHECK button is used for check operation.
During normal operation, do not use this
button.
10
Set up temperature button
Adjusts required room temperature.
Set required set temperature by pushing
Fan button
FAN button is used when a fan which is sold on
the market or etc. is connected.
or
.
• If “No function” is displayed on the remote
controller when pushing the FAN button, a
fan is not connected.
FILTER UP/DOWN button
(No function display)
5
6
7
Filter reset button
Resets (Erases) “FILTER
” display.
OPTION :
UNIT and AUTO flap button
Remote controller sensor
No function
Usually the TEMP. sensor of the indoor unit mea-
sures a temperature. A temperature around the
remote controller can also be measured.
Operation lamp
Lamp is lit during the operation. Lamp is off
when stopped.
For details, contact the dealer from which you have
purchased the air conditioner.
It flashes when operating a protection device
or abnormal occurred.
53
CORRECT USAGE
When you use the air conditioner for the first time or when you change SET DATA value, follow the procedure
below. From the next time, the operation will start as set state by pushing the
button.
Preparation
Turn on the main power switch and/or the leakage breaker.
• When the power supply is turned on, display section is displayed on the remote controller.
After the power supply is turned on, the remote controller does not accept an operation for approx. 1 minute,
but it is not a failure.
*
REQUIREMENT
• While using the air conditioner, operate it only with
power switch and the leakage breaker.
button without turning off the main
• When starting the operation after stop for a long time, turn on the main power switch for 12 hours or
more before start. (This is required to turn on the compressor case heater for warming in order to
prevent overload on the compressor when activating the outdoor unit.)
1
3
2
UNIT
4
SET
CL
1
2
Push
button.
The operation lamp goes on, and the operation starts.
Select an operation mode with the “MODE” button.
AUTO
HEAT
DRY
COOL
FAN
One push of the button, in each time the display
changes in the order shown on the right.
• In HEAT
mode, if the room temperature reaches to the set temperature, the outdoor unit stops and
the air flow becomes LOW and the air volume decreases.
• In the defrost mode, the fan stops so that cool air is not discharged and PRE-DEF
is displayed.
3
4
Select air volume with “FAN ” button.
AUTO
HIGH
MED.
LOW
One push of the button, in each time the display
changes in the order shown on the right.
• When air volume is “AUTO
• In DRY mode, “AUTO
”, air volume differs according to the room temperature.
” is displayed and the air volume is LOW.
• In heating operation, if the room temperature is not heated sufficiently with fan mode “LOW ” opera-
tion, select “MED. ” or “HIGH ” operation.
Determine the set up temperature by pushing the “TEMP.
” or “TEMP.
” button.
54
Stop
Push
button.
The operation lamp goes off, and the operation stops.
AUTOMATIC OPERATION (Auto Changeover)
When you set the air conditioner in
mode or switch over from AUTO operation, it will automatically select
either cooling, heating, or fan only operation depending on the indoor room temperature.
Start
1
2
3
button
Push this button to start the air conditioner.
Mode select button (MODE)
Select Auto.
Temperature button
Set the desired temperature.
• In case of cooling, start the operation after approx. 1 minute.
• In case of heating, starts the operation after approximately 3 to 5 minutes.
• When you select the Auto mode, it is unnecessary to set the fan speed.
The fan speed display will show
and fan speed will be automatically controlled.
• After heating operation stops, FAN operation may continue for approx. 30 seconds.
• When the room temperature reaches the set temperature and the outdoor unit stops, the LOW wind is
discharged and the air volume decreases excessively. During defrost operation, the fan stops so that cool
air is not discharged and
is displayed.
• If the Auto mode is uncomfortable, you can select the desired conditions manually.
NOTE
When restarting the operation after stop
• When restarting the operation immediately after stop, the air conditioner does not operate for approx. 3
minutes to protect a compressor.
Stop
Push
button.
Push this button again to stop the air conditioner.
55
TIMER OPERATION
A type of timer operation can be selected from the following three types.
OFF timer
Repeat OFF timer : Every time, the operation stops after the set time has passed.
ON timer :The operation starts after the set time has passed.
:The operation stops after the set time has passed.
Timer operation
1
UNIT
2
SET
CL
3
4
1
2
PushTIMER SET button.
• The timer display (type) changes every
push of the button.
OFF
OFF
ON
(OFF timer)
(Repeat OFF timer)
(ON timer)
• SET TIME and
,
,
,
display flashes.
No display
Push
to select “SETTIME”.
button, the set time increases in the unit of 0.5 hr (30 minutes).
For every push of
The maximum set time is 72.0 hr.
For every push of
button, the set time decreases in the unit of 0.5 hr (30 minutes).
The minimum set time is 0.5 hr.
3
Push SET button.
• SET TIME display disappears and timer time display goes on.
(When ON timer is activated, timer time are displayed, ON timer
are disappear.)
and SETTING other displays
Clear of timer operation
4
Push CL button.
• TIMER display disappears.
NOTICE
• Once set “Repeat OFF timer” resumes. So start again, stop by same timer.
For cancel timer, push CL button..
56
HINTS FOR ECONOMICAL OPERATION
Maintain room temperature at comfortable level
Clean air filters
Airflow and performance are reduced if the air filters become blocked.
Clean them every 2 weeks.
Do not open doors and windows more often than necessary
To keep cool or warm air in the room, do not open doors and windows more often than necessary.
Window curtains
In cooling, close the curtains to avoid direct sunlight.
In heating, close the curtains to keep the heat in.
Gee, chilly
Control
Get uniform circulation of room air
Adjust the air flow direction for the even
circulation of room air.
Clean, please.
Please close
Blows upward
Cool
and
dry
air
Air flow adjustment
Warm
air
Blows downward
MAINTENANCE
Cleaning of remote controller
CAUTION
• Use a dry cloth to wipe the remote controller.
• A cloth dampened with cold water may be used on the indoor unit if
it is very dirty.
• Never use a damp cloth on the remote controller.
Thinner
• Do not use a chemically-treated duster for wiping or leave such
materials on the unit for long. It may damage or fade the surface of
the unit.
• Do not use benzine, thinner, polishing powder, or similar solvents for
cleaning. These may cause the plastic surface to crack or deform.
57
If you do not plan to use the unit for more than 1 month
(1) Operate the fan for 3 to 4 hours to dry inside the unit
Operate “FAN ONLY” mode with set temperature 30°C.
(2) Stop the air conditioner and turn off the main power switch or the
circuit breaker.
Checks before operation
(1) Check that the air filters are installed.
(2) Check that the air outlet or inlet is not blocked.
(3) Turn on the main power switch or the circuit breaker for the mains AC
outlet to turn on the air conditioner.
FAN ONLY operation
WARNING
Make sure to ask the qualified maintenance professional for cleaning.
Turn off the main power supply switch or breaker before the unit maintenance.
Cleaning of Return grille
Preparation :
1. Turn off the air conditioner by the remote controller.
2. Dismount the Return grille.
Clean the Return grilles with water:
• Wipe down the Return grille with a sponge or towel moistened with a kitchen detergent.
(Do not use any metallic brush for cleaning.)
• Carefully rinse the Return grille to wash out the detergent.
• After rinsing the Return grille with water, dry it in the shade.
CAUTION
• Do not start the air conditioner while leaving the return grille removed.
Cleaning of Air Filters
• Recommended cleaning intervals : Every two weeks.
• If the air filters are not cleared, it not only impairs the
cooling performance of air conditioner but causes a
failure in the air conditioner such as water drops.
Preparation :
1. Turn off the air conditioner by the remote controller.
2. Dismount the Return grille.
Use a vacuum cleaner to remove dust from
the filters or wash them with water.
• After rinsing the air filters with water, dry them in the shade.
• Set the air filter into the air conditioner.
NOTE
For Air conditioning system which is operated regularly, cleaning and maintenance of the indoor/outdoor
units are strongly recommended.
As a general rule, if an indoor unit is operated for about 8 hours daily, the indoor/outdoor units will need to
be cleaned at least once every 3-MONTH. This cleaning and maintenance shall be carried out by a
qualified person.
Failure to clean the indoor/outdoor units regularly will result in poor performance, icing, water leaking and
even compressor failure.
58
AIR CONDITIONER OPERATIONS AND PERFORMANCE
3 minutes protection function
3-minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main
power switch/circuit breaker is turned on for re-starting the air conditioner.
Power failure
Power failure during operation will stop the unit completely.
• To restart the operation, push the START/STOP button on the remote controller.
• Lightning or a wireless car telephone operating nearby may cause the unit to malfunction. Turn off the main
power switch or circuit breaker and then turn them on again. Push the START/STOP button on the remote
controller to restart.
Heating characteristics
Preheating operation
The air conditioner will not deliver warm air immediately after it is turned on. Warm air will start to flow out
after approximately 5 minutes when the indoor heat exchanger warmed up.
Warm air control (In heating operation)
When the room temperature reaches the set temperature, the fan speed is automatically reduced to prevent
to blow cold draft. At this time, the outdoor unit will stop.
Defrosting operation
If the outdoor unit is frosted during the heating operation, defrosting starts automatically (for approximately
2 to 10 minutes) to maintain the heating capacity.
• The fans in both indoor and outdoor units will stop during the defrosting operation.
• During the defrosting operation, the defrosted water will be drained from the bottom plate of the outdoor
unit.
Heating capacity
In the heating operation, the heat is absorbed from the outside and brought into the room. This way of heating
is called heat pump system. When the outside temperature is too low, it is recommended to use another
heating apparatus in combination with the air conditioner.
Attention to snowfall and freeze on the outdoor unit
• In snowy areas, the air inlet and air outlet of the outdoor unit are often covered with snow or frozen up.
If snow or freeze on the outdoor unit is left as it is, it may cause machine failure or poor warming.
• In cold areas, pay attention to the drain hose so that it perfectly drains water without water remaining inside
for freeze prevention. If water freezes in the drain hose or inside the outdoor unit, it may cause machine
failure or poor warming.
Air conditioner operating conditions
For proper performance, operate the air conditioner under the following temperature conditions:
Cooling
Outdoor temperature
Room temperature
: –5°C to 43°C
operation
: 21°C to 32°C (Dry valve temp.), 15°C to 24°C (Wet valve temp.)
Room relative humidity – less than 80 %. If the air conditioner operates
in excess of this figure, the surface of the air conditioner may cause dewing.
CAUTION
Dry operation Outdoor temperature
Room temperature
: 15°C to 43°C (Maximum suction air temp. 46°C)
: 17°C to 32°C
Heating
Outdoor temperature
Room temperature
: –15°C to 15°C (Wet valve temp.)
: 15°C to 28°C (Dry valve temp.)
operation
If air conditioner is used outside of the above conditions, safety protection may work.
59
RE-INSTALLATION
DANGER
Ask the dealer or an installation professional to re-install the air conditioner to a new place or
move it to another place and to observe the following items.
If the air conditioner is inappropriate installed by yourself, it may cause electric shock or fire.
Do not install the air conditioner in the following places
• Do not install the air conditioner in any place within 1 m from a TV, stereo, or radio set. If the unit is installed
in such place, noise transmitted from the air conditioner affects the operation of these appliances.
• Do not install the air conditioner near a high frequency appliance (sewing machine or massager for business
use, etc.), otherwise the air conditioner may malfunction.
• Do not install the air conditioner in a humid or oily place, or in a place where steam, soot, or corrosive gas is
generated.
• Do not install the air conditioner in a salty place such as seaside area.
• Do not install the air conditioner in a place where a great deal of machine oil is used.
• Do not install the air conditioner in a place where it is usually exposed to strong wind such as in seaside
area or on the roof or upper floor of a building.
• Do not install the air conditioner in a place where sulfureous gas generated such as in a spa.
• Do not install the air conditioner in a vessel or mobile crane.
Be careful with noise or vibrations
• Do not install the air conditioner in a place where noise by outdoor unit or hot air from its air outlet annoys
your neighbors.
• Install the air conditioner on a solid and stable foundation so that it prevents transmission of resonating,
operation noise and vibration.
• If one indoor unit is operating, some sound may be audible from other indoor units that are not operating.
TROUBLES AND CAUSES
CAUTION
If any of the following conditions occur, turn off the main power supply switch and immediately contact the
dealer :
• The operation lamps flash at short intervals (5 Hz) even though you have tried turning off the power
supply and turning on again after 2 or 3 minutes.
• Switch operation does not work properly.
• The main power fuse often blows out, or the circuit breaker is often activated.
• A foreign matter or water fall inside the air conditioner.
• Any other unusual conditions are observed.
60
Before you ask for servicing or repairs, check the following points.
Inoperative
• The main power switch is turned off.
• The circuit breaker is activated to cut off power supply.
• The main power fuse has blown out.
• Stoppage of electric current.
Does not cool well or heat well
• The air inlet and/or outlet of the outdoor unit is blocked.
• Doors or windows are opened.
• The fan speed is set to low.
• The air conditioner is set in the DRY mode.
• The set temperature is too high. (In cooling operation)
• The set temperature is too low. (In heating operation)
Indoor unit or outdoor unit makes a strange noise.
• When the temperature suddenly changes, the indoor or outdoor unit
occasionally makes a strange noise because of changing of refrigerant flow or
expansion work.
The room air is smelly or a bad odor comes from the air conditioner.
• Smells impregnated in the walls‚ carpets, furniture, clothing, or furs, come
out from the air conditioner.
Outdoor unit is frosted in heating operation.
Water drains from outdoor unit.
• The outdoor unit is sometimes frosted in heating operation.
In that case, the unit automatically performs defrosting
(for 2 to 10 minutes) for increasing the heating efficiency.
Calm
• In defrosting operation, both the indoor and outdoor units stop air flow.
• Hiss sound is heard when flow of the refrigerant is changed for defrosting.
• Resultant water of automatic defrosting in heating operation drains from
outdoor unit.
Air flow changes without FAN button set to AUTO mode.
• When the temperature of blown air drops in heating operation,
the air conditioner automatically changes or stops air flow from the
indoor unit not to make persons in the room feel chilly.
• Air flow of the indoor unit is occasionally changed in the cooling operation.
A white mist of chilled air or water is generated from the outdoor unit.
• The indoor unit in cooling operation or the outdoor unit in defrosting
operation occasionally cause steams.
61
TROUBLES AND CAUSES (Concerning Remote Controller)
Before you ask for servicing or repairs, check the following points:
Setting Change is Impossible
Symptoms
Causes
Reason and Disposal
The fan speed can not be
changed.
• Check whether the MODE indi-
cated on the display is “AUTO”.
When the automatic mode is se-
lected, the air conditioner automati-
cally selects the fan speed.
AUTO
• Check whether the MODE indi-
cated on the display is “DRY”.
When dry operation is selected, the
air conditioner automatically selects
the fan speed.
(DRY)
62
Accessory parts and Parts to be procured locally
r Accessory parts
Part name
Q’ty
Shape
Part name
Q’ty
Shape
Connecting cable for
High static pressure tap
Pipe insulator
2
1
Installation Manual
Owner’s Manual
1
1
Drain hose socket for
drain pipe connection
1
<Separate sold parts>
Part name
Q’ty
Shape
Standard wired remote
controller
1
r Parts to be procured locally
Connecting pipe (Liquid side)
Connecting cable
(6.35mm (diam.), Nominal (diam.) 1/4” thick 0.8mm)
RAV-SM800BT-E, RAV-SM560AT-E
H07RN-F or 245IEC66 (1.5mm² or more)
(9.52mm (diam.), Nominal (diam.) 3/8” thick 0.8mm)
RAV-SM560BT-E, RAV-SM800AT-E
Thermal insulation for refrigerant pipe
(10mm or more, thermal insulating foam polyethylene)
Connecting pipe (Gas side)
Thermal insulation for drain pipe
(12.7mm (diam.), Nominal (diam.) 1/2” thick 0.8mm)
RAV-SM560BT-E, RAV-SM560AT-E
(10mm or more, foam polyethylene)
(15.9mm (diam.), Nominal (diam.) 5/8” thick 1.0mm)
RAV-SM800BT-E, RAV-SM800AT-E
Drain pipe (Outer 26mm (diam.))
Tapes
Power supply cord
2.5mm² (H07RN-F or 245IEC66) or 3.5mm² (AWG-12)
Grounding cable (2.0mm (diam.) or more)
63
1
PRECAUTIONS FOR SAFETY
• Ensure that all Local, National and International regulations are satisfied.
• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the installation work, perform a trial operation to check for any problem.
Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
• Ask the customer to keep the Installation Manual together with the Owner’s Manual.
CAUTION
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT
DESTROY OZONE LAYER.
The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure
is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil
has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or
refrigerating oil does not enter the refrigerating cycle.
To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging
port of the main unit and installation tools are charged from those for the conventional refrigerant.
Accordingly the exclusive tools are required for the new refrigerant (R410A).
For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does
not enter. Moreover, do not use the existing piping because there are problems with pressure-resistance force
and impurity in it.
CAUTION
To Disconnect the Appliance from Main Power Supply.
This appliance must be connected to the main power supply by means of a switch with a contact separation of
at least 3 mm.
The installation fuse (25A D type
) must be used for the power supply line of this conditioner.
WARNINGS
• Ask an authorized dealer or qualified installation professional to install/maintain the air
conditioner.
Inappropriate installation may result in water leakage, electric shock or fire.
• Turn off the main power supply switch or breaker before attempting any electrical work.
Make sure all power switches are off. Failure to do so may cause electric shock.
• Connect the connecting cable correctly.
If the connecting cable is connected in a wrong way, electric parts may be damaged.
• When moving the air conditioner for the installation into another place, be very careful not
to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle.
If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes
abnormally high and it may resultingly causes pipe burst and injuries on persons.
• Do not modify this unit by removing any of the safety guards or by by-passing any of the
safety interlock switches.
• Exposure of unit to water or other moisture before installation may cause a short-circuit of
electrical parts.
Do not store it in a wet basement or expose to rain or water.
64
1
PRECAUTIONS FOR SAFETY
• After unpacking the unit, examine it carefully if there are possible damage.
• Do not install in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
• When the air conditioner is installed in a small room, provide appropriate measures to
ensure that the concentration of refrigerant leakage occur in the room does not exceed the
critical level.
• Install the air conditioner securely in a location where the base can sustain the weight
adequately.
• Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.
• If refrigerant gas has leaked during the installation work, ventilate the room immediately.
If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.
• After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas might
generate.
• Electrical work must be performed by a qualified electrician in accordance with the
Installation Manual. Make sure the air conditioner uses an exclusive power supply.
An insufficient power supply capacity or inappropriate installation may cause fire.
• Use the specified cables for wiring connect the terminals securely fix. To prevent external
forces applied to the terminals from affecting the terminals.
• Be sure to provide grounding.
Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.
• Conform to the regulations of the local electric company when wiring the power supply.
Inappropriate grounding may cause electric shock.
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible
gas.
If a combustible gas leaks, and stays around the unit, a fire may occur.
65
2
SELECTION OF INSTALLATION PLACE
WARNING
• Install the air conditioner at enough strong place to withstand the weight of the unit.
If the strength is not enough, the unit may fall down resulting in injury.
• Install the air conditioner at a height 2.5m or more from the floor.
If you insert your hands or others directly into the unit while the air conditioner operates, it is dangerous
because you may contact with revolving fan or active electricity.
CAUTION
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible
gas.
If a combustible gas leaks and stays around the unit, a fire may occur.
Upon approval of the customer, install the air conditioner in a place that satisfies the
following conditions.
• Place where the unit can be installed horizontally.
• Place where a sufficient servicing space can be ensured for safety maintenance and check.
• Place where drained water will not cause any problem.
Avoid installing in the following places.
• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas
(hot spring). (Should the unit be used in these places, special protective measures are needed.)
• Place exposed to oil, vapor, oil smoke or corrosive gas.
• Place where organic solvent is used nearby.
• Place close to a machine generating high frequency.
• Place where the discharged air blows directly into the window of the neighboring house. (For outdoor unit)
• Place where noise of the outdoor unit is easily transmitted.
(When installing the air conditioner on the boundary with the neighbor, pay due attention to the level of noise.)
• Place with poor ventilation. (Before air ducting work, check whether value of air volume, static pressure and
duct resistance are correct.)
Selection of installation place
Installation space
In case of continued operation of the indoor unit under
high-humidity conditions as described below, dew may
condense and water may drop.
Secure the space required to installation
and servicing.
Especially, high-humidity atmosphere (dew point temperature
: 23°C or more) may generate dew inside the ceiling.
300 to 400
for service space
Refrigerant piping
Drain piping
1. Unit is installed inside the ceiling with slated roof.
Maintenance etc.
100 or more
2. Unit is installed at a location using inside of the ceiling
as fresh air take-in path.
450
200
3. Kitchen
If installing a unit at such place, adhere insulating material
(glass wool, etc.) additionally over all the positions of the
indoor unit which come to contact with high-humidity
atmosphere.
450
Check/service
opening panel
420
or more
Advice
Set a check service opening panel at right side of the unit
(size: 450 x 450mm) for piping, maintenance, and servicing.
66
3
INSTALLATION OF INDOOR UNIT
WARNING
Install the air conditioner certainly at a place to sufficiently withstand the weight.
If the strength is insufficient, the unit may fall down resulting in human injury.
Perform a specified installation work to guard against an earthquake.
An incomplete installation can cause accidents by the units falling and dropping.
Installation procedure
1. Lay drain pipes, refrigerant pipes, and connecting cables behind wall
or ceiling concurrently with supply/drain water work and piping work.
2. Install the mounting frames of supply/return air panels
3. Position the refrigerant and drain pipes
4. Install the indoor unit
• Preparation for installation
• Setting/fixing of indoor unit
5. Connect cables and pipes
6. Install supply/return air panels
7. Mount thermal insulation
8. Mount check port
67
External view
REQUIREMENT
The hanging bolt pitch on horizontal direction (B) is not halved at center with the ceiling opening size.
Therefore, check the relational position in the following figure.
75
25
Main unit dimension 800
Hanging bolt
Main unit dimension A
Hanging bolt pitch B
Hanging bolt pitch 565
210
H
4-M10 screw
(Arranged
locally)
720
630
Refrigerant pipe
connecting port
(Gas side ØF)
Refrigerant pipe
connecting port
(Liquid side ØG)
J = M x K
Suction port
(with air filter)
Drain pipe connecting port
For vinyl chloride pipe
(Inner dia. 32,
Ø125 knockout hole
(Rear face)
450
Nominal dia. 25)
Ceiling opening
dimension
470
2-Ø26 power supply,
pull-out port of remote
controller cord
Check panel
• Dimension
A
B
F
G
H
J
K
M
1
N
2
3
RAV-SM560BT-E
RAV-SM800BT-E
700
750
12.7
6.4
9.5
252
252
280
580
280
290
1000 1050 15.9
2
1. Hanging down of indoor unit
Hanging bolt
Refer to installation figures of hanging material
and hanging bolt.
Nut with flange
(or washer and nut)
• Adjustment of hanging bolt length and nut
position
Square washer
15 to 20
20 to 30
Adjust hanging bolt length and nut position as
shown in the figure before hanging down the
indoor unit.
Hexagonal nut
NOTE :
Be sure to set the indoor unit horizontally so as not to
cause malfunction of the float switch or leakage of water.
Considering pipe/wire connecting work inside the ceiling after the indoor unit has been hanged, select an installation
place and determine piping direction.
• If the ceiling has been already set, prepare refrigerant pipe, drain pipe, connecting wire, switch panel cord, etc. at
the place where pipe and wire are connected before hanging the main unit.
68
3
INSTALLATION OF INDOOR UNIT
Supply chamber
Concealed duct type
Channel
Supply grille
Supplying
200mm (diam.)
round duct
Supplying
Indoor unit
Returning
Return air grille
NOTE:
• Recommended supplying grille size 400 cm² each or more
Ledge ceiling concealed duct type
Supplying
Supply grille
Supply
Indoor unit
chamber
Supplying
200mm (diam.)
round duct
Return air grille
Returning
Quality of supplying grilles
SM560BT-E
SM800BT-E
2
3
NOTE:
• Opening area of the return grille should be larger than
the one for suction port (Air filter) of the indoor unit.
Restriction to installation
1. Installation clearance
• As shown in the figure, keep clearance around the indoor unit.
Inner ceiling
100mm or more
300mm
or more
100mm
or more
300mm
or more
69
4
AIR DUCTING WORK
Static pressure characteristics of each model
Fig. 1 RAV-SM560BT-E
70% (570m³/h)
110% (925m³/h)
Standard air volume : 840m³/h
Extra HHigh tap
12
11
10
9
8
High tap
7
6
Middloeletatpap
5
4
3
Low tap
2
1
0
500
570 600
700
800
900 925
1000
Air volume (m³/hr.)
Fig. 2 RAV-SM800BT-E
70% (800m³/h)
110% (1255m³/h)
Standard air volume : 1140m³/h
12
11
10
9
Extra HHigh tap
8
High tap
7
6
Middoleletatapp
5
4
3
Low tap
2
1
0
700
800
900
1000
1100
1200 1255
1300
Air volume (m³/hr.)
70
4
AIR DUCTING WORK
Installation Reference
(exp. for RAV-SM800BT-E model)
The air supply ducting work is classified in two ways, one is branched by the round ducts, and the other is branched
by the square ducts. (Be sure to divide the air supply duct into three or more branches.)
<Round duct>
<Square duct> (Reference for square duct)
When using the square duct, change the type of the air
supply flange from round type to square flange at the
local site.
In case of the round duct, use the thermal insulator of
thickness 25mm or more and inner diameter 150mm
or more to the duct board.
(If the inner diameter is not enough, resistance
increase, as the result, air does not flow smoothly and
loss of the static pressure increases.) For the thermal
insulator, use high-density glass wool of 24kg/m3 or
equivalent.
In case of the square duct, apply the thermal insulator
of thickness 25mm or more to the duct board. For the
thermal insulator, use high-density glass wool of
weight 64kg/m3.
Density of thermal
insulator (glass wool) is
24 kg/m³ or equivalent.
25mm or more
Duct board
Density of thermal
insulator (glass wool) is
64 kg/m³ or equivalent.
Ø150mm or more
25mm or more
Connecting method of the duct
1. Supply air side
<Round duct>
<Square duct>
Thermal insulator with
Thermal insulator
Thermal insulator
Thermal insulator
at indoor unit side
Stuck already at
sticking material
with sticking material
at indoor unit side
(50mm-width, 6mm (t))
(50mm-width, 6mm-thickness)
Stuck already at
(
)
Aluminum tape
(
)
shipment from the factory
shipment from the factory
Aluminum tape
(Seal : 50mm-width)
(Seal : 50mm-width)
Screws
Screws
(6 pieces)
Fit to the arrow
direction by pushing.
Fit to the arrow
direction by pushing.
(6 pieces)
Indoor unit side
Flange
Attach by pushing to
(procured locally)
Round duct
the arrow direction.
Seal/thermal insulator
with sticking material
(25mm-width, 6mm (t))
Flange
Thermal insulator
Seal/thermal insulator
with sticking material
(25mm-width, 6mm (t))
(Outside corner direction)
25mm-thickness,
Square duct board
(
)
24kg/m³ or equivalent
25mm-thickness,
64kg/m³ or equivalent
(
)
Fit the seal/thermal insulator (25mm-width, 6mm-thickness)
by pushing to the arrow direction so that no gap can be
found between the flange and the round duct.
Fig. 2 (b)
Fig. 2 (a)
CAUTION
Incomplete thermal insulation of the supply air flange and sealing may cause dew drops.
71
<Square duct>
Connecting method of the duct
1. Using 6 screws, mount the flange to the supply air
port of the indoor unit. (Fig. 2)
1. Supply air side
<Round duct>
2. Make the square duct according to inner dimension
of the flange A x B .
1. Make the round duct according to inner dimension
of the flange
Use a glass wool board with inside/outside finishing
25mm-thickness and 24kg/m³-density.
Use a glass wool board with inside/outside finishing
25mm-thickness and 24kg/m³-density.
3. Connect the flange and each type of duct. (Fig. 3)
2. Connect the flange and each type of duct. (Fig. 1)
Thermal insulator (50mm (w), 6mm (t))
Aluminum tape
(50mm-width)
Seal
Thermal insulator :
B
(
)
25mm (w), 6mm (t)
25mm
Fig. 2
Thermal insulator (50mm (w), 6mm (t))
Seal
Indoor unit
Aluminum tape
(50mm-width)
Thermal insulator :
(
)
25mm (w), 6mm (t)
25mm
End
End
Indoor unit
Round duct board
Thermal insulator
(25mm thickness, 24kg/m³ or equivalent)
Square
duct board
(25mm)
Fig. 1
Fig. 3
Points at installation work
n General cautions
1. Considering installation places of indoor unit supply chamber, structure of the building and determine the duct
path.
2. In order to utilize the static pressure characteristics of the air supply in the indoor unit, design the duct branching
having the large size of the air supply chamber or setting distance to the first branch as long as possible
(Min. : 200mm or longer) so that an even air volume can be obtained.
Especially, when branching just after air supply of the indoor unit, air concentrates at the center part and is
difficult to flow to the ducts at both sides.
3. Connect each connecting section surely, and apply sufficient thermal insulation.
In this model of which the duct is branched in the ceiling, compared with the model for ordinary houses, the high
temperature generates on the periphery in the cooling time (Especially, at attic and etc.), temperature difference
increases between the supply air and outside of the duct, and dewing may occur.
Dewing on the surface of the thermal insulator covering the metal connecting section or leaking portion of the
cooled air may cause a trouble such as water drops.
4. Thermal insulation of screwing sections is necessary.
Prevent dewing by applying thermal insulation to 6 screws those fix the duct flange of the air supply chamber.
• For duct parts, the flexible branch duct (thermal insulation, 25mm or more thickness) is recommended.
• Adjust the duct length to 6m or less even for straight pipe, and avoid sharp bending (Air flow resistance is
large.) if bending.
72
4
AIR DUCTING WORK
Hanging of indoor unit
Nut
Lift up the unit with a lifter, etc., and set the hanging metal in the
hanging bolt.
• Hook nut of the hanging bolt to the groove of the hanging metal on
the main unit.
Washer
Hanging bolt
Hanging bracket
• Using the level, etc., install the main unit horizontally.
Failure to do this will cause water leakage
Mounting of filter and canvas for suction port
1. Mount a long-life filter or a high-performance filter according to each Installation Manual.
2. Mount the canvases for suction port to the lower side of the above filter.
Mounting of remote controller
For the mounting of the wired remote controller, refer to the Installation Manual attached to the remote controller.
• Take out the remote controller cord together with the refrigerant pipe or drain pipe. Be sure to set the remote
controller cord so that it passes through the upper side of the refrigerant pipe and drain pipe.
For reference
<Square duct>
(Procured locally)
Return Air side
Supply Air side
For supply
air side
G-Ø5 mm holes
G-Ø5 mm holes
For return
air side
C
B
D
A
A
18
18
25
18
18
25
25
25
25
25
18
J
J
J
J
18
18
18
H
H
A
A
A
B
—
C
D
E
F
G
H
I
J
—
K
Model
700
1000
400
430
65
—
—
439
439
265
265
409
409
245
245
4
350 226
500 226
—
—
RAV-SM560BT-E
RAV-SM800BT-E
RAV-SM560BT-E
RAV-SM800BT-E
Return Air side
(Return filter side)
700
8
22
30
350
550 455 (65 x 7)
850 715 (65 x 11)
530
830
275 132.5 227.5 130
425 132.5 307.5 130
Supply Air side
65
73
5
DRAIN PIPING WORK
Piping material
1.5m to 2m
Support
bracket
• For laying pipes underground, use hard vinyl
chloride pipe. (Inner diam. 20 or 25mm)
Indoor
unit
1/100 or more
downward slope
Thermal
insulator
Arched shape
Trap
Piping and cautions
• Set drain side of pipe at downward slope.
(1/100 or more)
• Be sure to apply thermal insulation (foaming
polyethylene, 10mm-thickness or more) for pipes
passing through the room.
• As shown in the figure, set the collective piping such
as the ceiling duct so that waste water does not back
up from the main pipe.
• Adhere the connecting sections with vinyl chloride
agent surely so that no water leakage is caused.
• Support the piping with hanging bracket so that the
force is not applied to connection sections of pipe
and pipe is not waved.
NOTES :
• Do not make slack or trap at halfway across piping.
• Set pipes so that the end of drain pipe is not dipped in
water, and also keep space 50mm or more to the
ground.
50 mm
or more
Do not put the drain hose
end into water or drainage.
• After piping work, check if water drains smoothly.
• Hole should be made at a slight downward slant to
the outdoor side.
Shield pipe (local parts)
• When connecting extension drain hose, insulate the
connecting part of extension drain hose with shield
pipe.
Drain hose Inside the room
Extension drain hose
Connection of the drain hose
• Insert the drain hose completely into the connecting port of the drain pan.
• Apply thermal insulation surely to the drain hose with socket thermal insulation seal.
As long as possible (Approx. 100mm)
VP 30
VP 30
VP 30
Extended
ventilating pipe
VP 30 or more
Downward grading
1/100 or more
74
6
REFRIGERANT PIPING
• Flaring dia meter size : A (Unit : mm)
Refrigerant Piping
+0
A
-
0.4
1. If the outdoor units are to be mounted on a wall,
make sure that the supporting platform is
sufficiently strong. The platform should be
designed and manufactured to maintain its strength
over a long period of time, and sufficient
consideration should be given to ensuring that the
outdoor unit will not fall.
Outer diam. of copper pipe
R410A
9.1
R22
9.0
6.35
9.52
12.7
15.9
13.2
16.6
19.7
13.0
16.2
19.4
2. Use copper pipe with 0.8 mm or more
thickness.
In the case of flaring for R410A with the conventional
flare tool, pull out it approx.
*
3. Flare nut and flare works are also different from
those of the conventional refrigerant.
A
0.5 mm more than that for R22 to
Take out the flare nut attached to the main unit of
the air conditioner, and use it.
adjust to the specified flare size.
The copper pipe gauge is useful
for adjusting projection margin size.
CAUTION
IMPORTANT 4 POINTS FOR PIPING WORK
Tightening connection
1. Remove dust and moisture from the inside of
the connecting pipes.
CAUTION
2. Tight connection (between pipes and unit)
• Do not apply excessive torque. Otherwise, the
nut may crack depending on the conditions.
3. Evacuate the air in the connecting pipes using
VACUUM PUMP.
4. Check the gas leakage. (connected points)
(Unit : N•m)
Outer diam. of copper pipe
Tightening torque
Permissible Piping Length and Heat
6.35 mm (diam.)
9.52 mm (diam.)
12.7 mm (diam.)
15.9 mm (diam.)
14 to 18 (1.4 to 1.8 kgf•m)
33 to 42 (3.3 to 4.2 kgf•m)
50 to 62 (5.0 to 6.2 kgf•m)
63 to 77 (6.3 to 7.7 kgf•m)
The maximum piping length from the outdoor to indoor unit
30 m (Chargeless 20m)
(RAV-SM560AT-E)
50 m (Chargeless 20m)
(RAV-SM800AT-E)
The maximum height difference outdoor/indoor unit
Outdoor unit is above
Outdoor unit is below
• Tightening torque of flare pipe connections
30m
15m
Pressure of R410A becomes higher than that of R22.
(Approx. 1.6 times) Therefore, using a torque
wrench, tighten firmly the flare pipe connecting
Flaring
Insert a flare nut into the pipe, and flare the pipe.
sections which connect the
indoor and outdoor units up to
the specified tightening torque.
Flare at
indoor
As the flaring sizes of R410A differ from those of
refrigerant R22, the flare tools newly manufactured for
R410A are recommended.
unit side
B
Incorrect connections may
cause not only a gas leakage,
but also a trouble of the
refrigeration cycle or
However, the conventional
tools can be used by
adjusting projection margin
of the copper pipe.
compressor damage.
Flare at
outdoor
• Projection margin in flaring : B (Unit : mm)
unit side
Rigid (Clutch type)
Align the centers of the connecting pipes and tighten
the flare nut as far as possible with your fingers. Then
tighten the nut with a spanner and torque wrench as
shown in the figure.
R410A tool used
R410A R22
Conventional tool used
R410A R22
Outer diam. of
copper pipe
6.35 to 9.52 0 to 0.5 (Same as left) 1.0 to 1.5 0.5 to 1.0
Half union
Flare nut
Imperial (Wing nut type)
Externally
threaded side
Internally
threaded side
Outer diam. of copper pipe
6.35 or 9.52
R410A
R22
1.5 to 2.0
2.0 to 2.5
1.0 to 1.5
1.5 to 2.0
12.7 or 15.9
Use a wrench to secure.
Use a torque wrench to tighten.
75
7
EVACUATING
<For RAV-SM800AT-E model>
AIR PURGE
• As shown in the figure, be sure to use a double
spanner to loosen or tighten the flare nut of the valve
at gas side. If using a single spanner, the nut cannot
be tightened with necessary tightening torque.
Evacuate the air in the connecting pipes and in the
indoor unit using vacuum pump.
Do not use the refrigerant in the outdoor unit.
For details, see the manual of vacuum pump.
On the contrary, use a single spanner to loosen or
tighten the flare nut of the valve at liquid side.
Use a vacuum pump
Cover
Be sure to use a vacuum pump with counter-flow
prevention function so that inside oil of the pump does
not flow backward into pipes of the air conditioner
when the pump stops.
Cap
Piping valve
1. Connect the charge hose from the manifold valve
to the service port of the gas side packed valve.
Loosened
Tightened
2. Connect the charge hose to the port of vacuum
pump.
3. Open fully the low pressure side handle of the
gauge manifold valve.
Flare nut
4. Operate the vacuum pump to start evacuating.
SM800 type valve at gas side
Perform evacuating for about 35 minutes if the
piping length is 30 meters total for model SM560
and 50 meters for model SM800
(assuming a pump capacity of 27 liters per minute.)
Then confirm that the compound pressure gauge
reading is –101 kPa ( –76 cmHg).
Cover
5. Close the low pressure side valve handle of gauge
manifold.
6. Open fully the valve stem of the packed valves
(both sides of Gas and Liquid).
Do not put the spanner or
torque wrench, etc. on
the cover.
7. Remove the charging hose from the service port.
8. Securely tighten the caps on the packed valves.
The valve may be broken.
Packed valve handling precautions
• Open the valve stem all the way out ; do not try to
open it beyond the stopper.
Compound
Pressure gauge
Manifold valve
pressure gauge
• Securely tighten the valve stem cap at the torque as
follows:
–101kPa
(–76cmHg)
Handle Lo
15.9 mm (diam.)
12.7 mm (diam.)
9.52 mm (diam.)
6.35 mm (diam.)
63 to 77 N•m (6.3 to 7.7 kgf•m)
50 to 62 N•m (5.0 to 6.2 kgf•m)
33 to 42 N•m (3.3 to 4.2 kgf•m)
14 to 18 N•m (1.4 to 1.8 kgf•m)
Handle Hi
(Keep fully closed)
Charge hose
Charge hose
Vacuum pump
adapter for
counter-flow
prevention
Packed valve
at liquid side
Hexagonal wrench is required.
Vacuum
pump
Service port
(Valve core (Setting pin))
Packed valve at gas side
76
8
ELECTRICAL WORK
For the air conditioner that has no power cord.
Cabling
NOTE:
1. As shown in the figure, remove a screw
then remove cover of the electric part.
and
For selection and connection method of the power
supply cords, refer to the details in the Installation
Manual of the outdoor unit.
2. Strip wire ends (10 mm).
3. Match wire colors with terminal numbers on indoor
and outdoor units’ terminal blocks and firmly screw
wires to the corresponding terminals.
CAUTIONS
4. Connect the ground wires to the corresponding
terminals.
• If incorrect/incomplete wiring is carried out, it
may cause an electrical fire or smoke.
5. Fix the cable with cord clamp.
• Prepare the power supply for exclusive use with
the air conditioner.
6. Fix cover of the parts box and the terminal block
surely with the fixing screws.
• Be sure to use the cord clamps with attached to
the product.
• Do not damage or scratch the conductive core
and inner insulator of power and inter-connecting
cables when peeling them.
• Be sure to comply with local regulations on
running the wire from outdoor unit to indoor unit
(wire size of wire and wiring method etc.)
• Use the power cord and Inter-connecting cable
of specified thickness, specified type, and
protective devices required.
How to wire
Cord clamp
1. Connect the connecting cable to the terminal as
identified with their respective numbers on the
terminal block of indoor and outdoor unit.
H07 RN-F or 245 IEC 66 (1.5 mm2 or more)
2. Insulate the unsheathed redundant cords
(conductors) with tape.
Make a loop for the margin of the cable length so that
the electric parts box can be taken out during servicing.
3. For inter-unit wiring, do not use a wire jointed to
another on the way.
Power supply cord
Remote controller
cord
4. Fix the cable with cord clamp.
77
Remote Controller Cabling
Remote controller cabling
Cable from remote
• Strip approx. 14mm the cable to be connected.
• Non polarity, 2 core cable is used for cabling of the remote controller.
• Twist cable of the remote controller to be connected with cable of the remote
controller unit (or sensor), and press-fit them with a wire joint.
(Wire joints (White: 2 pieces) are included in the attachments to the remote
controller (sold separately) or the wireless remote controller kit (sold
separately).
Wire joint
controller unit
Remote controller
Remote controller
cable
A
1
B
2
Approx. 200mm
W : White
B : Black
Indoor side
3
3
Terminal block
for remote controller
cabling of indoor unit
A
B
W
B
Remote controller
unit or sensor part
Indoor/Outdoor
connecting cable
1
L
2
Remote controller cable
(Procured locally)
Remote controller unit or
cable from sensor part
Connecting
part
Outdoor side
N
(Single phase 220/230/240V)
Cabling diagram
• For details of cabling/installation of the remote controller, refer to the
Installation Manual attached to the remote controller.
Check and Test Operation
Be sure to test the pipe connections for gas leak.
• Check the flare nut connections, valve stem cap connections and service port cap connections for gas leak with a
leak detector or some soap water.
9
INSTALLATION/SERVICING TOOLS
Tools
Tools
Applicable to R22 model
Tools
Applicable to R22 model
Gauge manifold
Charge hose
Flare tool (clutch type)
¡
o
Gauge for projection
adjustment
__
____
o
¡
o
Vacuum pump adapter
Gas leak detector
¡
Electronic balance for
refrigerant charging
Torque wrench
(nominal diam.
1/4, 3/8, 1/2, 5/8)
o
: Newly prepared (They are special requirements for R407C, separate from those for R22.)
¡
o : Existing tools are available.
For the details of the tools, refer to the Installation manual of the outdoor unit.
78
ACCESSORIES
Remote controller
Screws (two pcs.)
for Remote controller
Installation plate
Screws for
installation plate
Ø4mm x 25mm
STANDBY
FILTER
F
A
N
CHECK
COOL
PRE-HEA
T
D
R
Y
DEFROST
LOUVER
MANUAL
HEAT AUTO
AUTO
CENTRAL
F
I
X
TEMP.
FAN SPEED
LOUVER
(sold separately)
PRECAUTIONS FOR SAFETY
WARNING
WARNINGS ABOUT INSTALLATION
• Make sure to ask the qualified installation professional in electric work to install
the air conditioner.
If the air conditioner is inappropriate installed by yourself, it may cause water
leak, electric shock, fire, and so on.
• Ground the air conditioner without fail.
Do not connect the ground wire to gas pipe, water pipe, lightning rod or ground
wire of telephone. If the air conditioner is imperfectly grounded, it may cause
electric shock.
CAUTION
TO DISCONNECT THE APPLIANCE FROM THE MAINS SUPPLY
This appliance must be connected to the mains by means of a switch with a
contact separation of at least 3 mm.
The installation fuse (25A D type
supply line of this conditioner.
) must be used for the power
WARNINGS ABOUT OPERATION
• Avoid cooling the room too strong or exposing the human body to cool breeze
for a long time as it is bad for the health.
• When you notice something abnormal with the air conditioner (smells like
something scorching, poor cooling, etc.), immediately turn off the main switch,
the circuit breaker, from the mains to stop the air conditioner, and contact the
dealer.
If the air conditioner is continuously operated with something abnormal, it may
cause machine failure, electric shock, fire, and so on.
WARNINGS ABOUT MOVEMENT AND REPAIR
• Do not move or repair any unit by yourself.
Since there is high voltage inside the unit, you may get electric shock when
removing the cover and main unit.
• Whenever the air conditioner needs repair, make sure to ask the dealer to do it.
If it is repaired imperfectly, it may cause electric shock or fire.
• When moving the air conditioner for re-installing at another place, ask the
dealer to do it. If it is imperfectly installed, it may cause electric shock or fire.
79
CAUTION
CAUTIONS ABOUT INSTALLATION
• Certainly lay the drain hose for perfect draining.
Bad drainage may cause flooding in the house and getting furniture
wet.
• Make sure to connect the air conditioner to an exclusive AC outlet of
the rated voltage, otherwise the unit may break down or cause a fire.
• Do not install the unit in a place where inflammable gas may leak.
If inflammable gas accumulates around the unit, it may cause a fire.
CAUTIONS ABOUT OPERATION
• Carefully read this manual before starting the air conditioner.
There are many important things to keep in mind for daily operation.
• Do not use this air conditioner for special purpose such as preserv-
ing food, precision instruments, art objects, breeding animals,
growing potted plants, etc.
• Avoid exposing potted plants and animals to the wind of the air
conditioner, since it badly affects the health and growth of them.
• When the air conditioner is operated with a combustion appliance in
the same place, be careful of ventilation to let fresh air enter the
room.
Poor ventilation causes oxygen shortage.
• When the air conditioner is used in a closed room, be careful of
sufficient ventilation of the room. Poor ventilation causes oxygen
shortage.
• Do not touch any switches with wet finger, otherwise you may get an
electric shock.
• Do not place any combustion appliance in a place where it is directly
exposed to the wind of air conditioner, otherwise it may cause
imperfect combustion.
• If the air conditioner won’t be used for a considerably long time, turn
off the main switch or the circuit breaker, for safety. Disconnect from
the power supply prevents the unit from lightning and power supply
surge.
• Check the concrete blocks, etc. of the base of the outdoor unit
occasionally.
If the base is left damaged or deteriorated, the unit may topple over
and inflict an injury to a person as the worst case.
• When cleaning the unit, make sure to turn off the main switch or the
circuit breaker beforehand for preventing you from getting injured by
the electric fan running inside. For details of cleaning method, refer to
“Maintenance” on page 9.
• Do not put anything on the outdoor unit nor step onto it. If you do so,
it may not only topple over the unit but also injure yourself.
• To make the air conditioner operate in its original performance,
operate it within the range of the operating temperature specified in
the instructions.
Otherwise it may cause a malfunction, or water leak from the unit.
• Prevent any liquid from falling into the remote controller. Do not spill
juice, water or any kind of liquid.
80
PARTS NAME
Outdoor unit
1
Air outlet - blows off hot air during cooling
or cool air during heating
2,3
4
1
2
3
4
Power supply box - contains electrical parts
Earth screw - in the electrical parts box
Refrigerant line connections
Indoor unit
1
2
3
4
5
6
7
8
9
10
Room temperature sensor
10 2 4 3 1
Front panel
Air inlet grille
Air filter
MODE FAN TEMP.
F
C
A N
UNIT STANDBY
FILTER
C
HECK
A
D
D
R
E
S
S
2
O O L 1
PREHEAT
DEFROST
Air outlet
H
E AT
A
U
T
O
L
O
U
V
E
R
L
FIX CENTRAL
M
A
N
UA
MODE
Horizontal air flow louver
Vertical air flow louver
Display panel
FILTER CHECK
ON/OFF
5 9
6 8 7
Infrared signal receiver
Remote controller
NAME AND FUNCTIONS OF INDICATORS AND CONTROLS
Display panel
The operating conditions are indicated below.
1
2
3
4
5
AUTO (green)
AUTO
PRE.DEF.
FILTER
TIMER OPERATION
PRE. DEF. lamp (orange)
FILTER lamp (orange)
TIMER lamp (yellow)
1 2 3 4 5
OPERATION lamp (green/*orange)
The operation lamp flash rapidly (five times per second),
when safety protection feature come into operation.
When the auto restart function is in operation, the
OPERATION lamp is orange.
*
TEMPORARY button
If you misplace or lose the remote controller or its batteries are
exhausted, push the TEMPORARY button.
1
2
Open the air inlet grille to push theTEMPORARY button.
Push theTEMPORARY button to start the air conditioner.
Push this button once again to stop it.
TEMPORARY button
3
Continue to push the button for 10 seconds to start cooling
operation.
81
NAME AND OPERATIONS OF INDICATORS AND CONTROLS
Display section
All display items are shown in the figure below for purpose
of explanation.
Only selected items are displayed in actual operation.
(All indicators are displayed for the explanation.)
The displayed contents differ according to shape or type.
1 2 3
4
5
8
6 7
1
2
3
CHECK
7
8
CENTRAL control display
Displayed during check mode.
Displayed when used with the central remote
controller, etc.
Set up temperature display
STANDBY display
The selected set up temp. is displayed.
It is displayed when the operation cannot be
performed though it is not an error.
Unit display
Unit No. in which error/fault is displayed in the
set up temp. display section.
FILTER display
If “FILTER” is displayed, clean the air filter.
4
5
Operation mode display
PREHEAT/DEFROST display
The selected operation mode is displayed.
Displayed when heating operation or defrost
operation starts.
Fan mode display
The selected fan mode is displayed.
LOUVER display
It is displayed while the discharge louver
operates in AUTO mode.
(LOW)
(MED.)
(HIGH)
LOUVER/MANUAL display
It is not displayed on this model.
6
Air volume fix display
This is not displayed on this model.
82
Operation section
Push each button to select a desired operation.
1
2
3
Operation select button
6
Operation lamp
Selects desired operation mode.
Lamp is lit during the operation.
Lamp is off when stopped.
Air volume select button
Although it flashes when power switch is turned
on or when turned on again after power failure, it
goes on if the operation has started.
Selects the desired air volume mode
Set up temp. button
Adjusts the required room temperature.
Match to the desired set temperature by
7
8
Louver operation button
With auto louver function, the discharge louver
operates or stops during operation of air condi-
tioner.
pushing
.
4
5
Filter reset button
ON/OFF button
Resets (Erases) “FILTER” display.
When the button is pushed, the operation starts,
and it stops by pushing the button again.
CHECK button
When an error/fault occurs on the air
conditioner, this button is used to check the
check code indicating fault status.
When the operation has stopped, the operation
lamp and louver display disappear though other
displays remain as they are.
“Central indication”
When using a remote controller connected to a central remote controller, etc., contents which can be operated by
the standard remote controller and “CENTRAL” display change by setting at the central remote controller.
Setup on central
remote controller
“CENTRAL” display on
standard remote controller
Contents operated by standard remote controller
Last-push priority
(No display)
Operated from both standard remote controller and central
remote controller, and operated with contents specified later.
Goes off
Center
Goes on
Flashes
ON / OFF only can be operated.
Cannot be operated.
Operation inhibit
For application control using other “Weekly timer” or “Central remote controller” other than this standard
remote controller, refer to the Manual attached to each remote controller.
83
CORRECT USAGE
When you use the air conditioner at the first time or when you change the setup value, follow the procedure
below. From the next time, the operation displayed on the remote controller will start only by pushing ON /
OFF button.
Preparation
Turn on the power switch.
• The operation lamp (Red) flashes.
REQUIREMENT
• While using the air conditioner, operate it only with ON/OFF button without turning off the power switch.
• When starting the operation after stop for a long time, turn on the power switch for 12 hours or more
before start. (This is required because it is necessary to turn on the compressor case heater for heating
in order to prevent overload on the compressor when activating the outdoor unit.)
1
2
Select an operation mode with“MODE” button.
FAN
COOL
HEAT
For every push of the button, the display changes as
right figure :
Select air volume with the“FAN” button.
The display changes as follows :
MODE FAN TEMP.
LOW
MED.
HIGH
AUTO
F A N
CHECK A D D R E S S UNIT STANDBY
C O O L 1 2
FILTER
PREHEAT
DEFROST
H E AT AU TO
LOUVER
CENTRAL MANUAL
FIX
• When air volume is “AUTO”, air volume changes according to
the room temperature.
MODE
3
4
Determine the set up temperature by pushing the“TEMP.”
button.
CK
FILTE1 2 3
Push“ON/OFF” button.
The operation lamp goes on, and the operation starts .
ON/OFF
STOP
Push “ON/OFF” button.
4
The operation lamp goes off, and the operation stops.
NOTE
In cooling
• When the operation button is pushed, the operation starts approx. 1minute after.
In heating
• When pushing “ON/OFF” button, the indoor fan starts pre-heating operation for 3 to 5 minutes before it
starts blowing out hot air.
• When the room temperature reaches the set up temperature and the outdoor unit stops, the mode
becomes LOW and air volume decreases accordingly. During defrost operation, the fan stops so that
cool air is not out, and “PREHEAT” and “DEFROST” are displayed.
When restarting the operation after stop
• In heating operation, the fan operation may continue for approx. 30 second.
• When restarting the operation immediately after stop, the air conditioner does not operate for approx. 3
minutes to protect the machine.
84
DRY OPERATION
Start
1
2
3
START/STOP button
Push this button to start the air conditioner.
Mode select button (MODE)
MODE FAN TEMP.
Select DRY.
F A N
CHECK A D D R E S S UNIT STANDBY
FILTER
C O O L 1 2
PREHEAT
DEFROST
LOUVER
H E AT AU TO
Temperature button
FIX
CENTRAL MANUAL
Set the desired temperature.
MODE
2
3
• The FAN speed display indicates AUTO
FILTER CHECK
• The OPERATION lamp (green) on the switch panel of the remote
controller lights, and operation starts after approximately 3 minutes.
ON/OFF
Stop
1
START/STOP button
Push this button again to stop the air conditioner.
AUTOMATIC OPERATION (Auto Changeover)
When you set the air conditioner in A mode or switch over from AUTO operation
because of some settings change, it will automatically select either cooling,
heating, or fan only operation depending on the outdoor temperature.
MODE FAN TEMP.
F A N
CHECK A D D R E S S UNIT STANDBY
FILTER
Start
C O O L 1 2
PREHEAT
DEFROST
H E AT AU TO
LOUVER
1
2
3
START/STOP button
FIX
CENTRAL MANUAL
Push this button to start the air conditioner.
MODE
2
3
Mode select button (MODE)
FILTER CHECK
Select Auto.
Temperature button
ON/OFF
Set the desired temperature.
1
• In case of cooling, it starts the operation after approx. 1 minute.
• In case of heating, the operation mode is selected in accordance with the
room temperature and operation starts after approximately 3 to 5 minutes.
• When you select the Auto mode, it is unnecessary to set the fan speed.
The FAN speed display will show AUTO and the fan speed will be automatically controlled.
• If the Auto mode is uncomfortable, you can select the desired conditions manually.
Stop
START/STOP button
Push this button again to stop the air conditioner.
85
ADJUSTING AIR FLOW DIRECTION
• Adjust the air flow direction properly. Otherwise, it might cause
discomfort and make the room temperature uneven.
• Adjust the vertical air flow using the remote controller.
• Adjust the horizontal air flow manually.
Adjust the vertical air flow
The air conditioner automatically adjusts the vertical air flow direction
in accordance with the operating conditions.
To set the air flow direction by yourself
Perform this adjustment when the air conditioner is in operation.
Push the LOUVER button once on the remote controller.
The louver starts to swing. When the desired louver position is
reached in the swing, push the LOUVER button again and
louver will stop at desired position.
To automatically swing the air flow direction
Perform this function when the air conditioner is in operation.
Push the LOUVER button on the remote controller.
• To stop the function, push the LOUVER button again.
CAUTION
• Do not operate the air conditioner for prolonged periods of time with the air flow direction set downward
during cooling operation.
• Do not move the vertical air flow louver manually. Always use the LOUVER button.
If you move the louver manually, it may malfuction during operation.
If the louver malfunctions, stop the air conditioner once, and restart.
Adjust the horizontal air flow
Preparation :
• Take hold of the lever on the horizontal air flow louver and move them to adjust the air flow direction as you
desire.
• You can adjust the air flow at the left, center, and right locations of the grilles.
HOWTHE AIR CONDITIONER WORKS
Automatic operation
• The air conditioner selects and operates a mode from the cooling, the heating, or the fan only operations,
depending on the outdoor temperature.
• If the AUTO mode is uncomfortable, you can select the desired conditions manually.
Outdoor temperature in operation
Operating condition
Outdoor temperature 22°C or more
(in case the outdoor is hot)
Cooling
operation
Performs the cooling operation at a temperature 1°C
higher than the setting.
Performs the fan only operation (low speed) while
monitoring the outdoor temperature. When the room
temperature changes, the air conditioner will select
the cooling or heating mode.
Fan only
operation
Outdoor temperature 20°C to 22°C
The set temperature less than 20°C
(in case the outdoor is cold)
Heating
operation
Performs the heating operation at a temperature 1°C
lower than the setting.
86
HINTS FOR ECONOMICAL OPERATION
1. Clean air filters
Air flow and performance are reduced if the air filters become blocked.
Clean them every 2 weeks..
2. Never open doors and windows more often than necessary
To keep cool or warm air in the room, never open doors and windows more often than necessary.
3. Use the timer effectively
Set the timer for the desired operating time.
4. Allow uniform circulation of room air
Adjust the air flow direction for the even circulation of room air.
TEMPORARY OPERATION
TEMPORARY operation
This function is used to operate the unit temporally in case you
misplace the remote controller or its batteries are exhausted.
• Push the TEMPORARY button to start the air conditioner.
• While the substitute operation is set, the remote controller
operation is disabled.
• Continue to push the button for 10 seconds to start cooling
operation.
Air filter reset
TEMPORARY button
When the FILTER lamp on the air conditioner is indicated, it is time
for cleaning. (The lamp will start to indicate, after every 1000 hours
of operation.)
• The FILTER lamp will be out when the TEMPORARY button is pushed.
• The FILTER lamp will also be out when the FILTER button on the remote controller is pushed.
MAINTENANCE
WARNING
Before you clean the air conditioner be sure to turn off the circuit breaker or main power switch.
Cleaning of indoor unit and remote controller
CAUTION
• Use a dry cloth to wipe the indoor unit and remote controller.
• A cloth dampened with cold water may be used on the indoor unit if it is very dirty.
• Never use a damp cloth on the remote controller.
• Do not use a chemically-treated duster for wiping or leave such materials on the unit for long. It may
damage or fade the surface of the unit.
• Do not use benzine, thinner, polishing powder, or similar solvents for cleaning. These may cause the
plastic surface to crack or deform.
If the air conditioner is not to be used for more than one month
1. Operate the air conditioner in FAN ONLY mode for approximately 6 hours to dry inside the unit
2. Stop the air conditioner and turn off the circuit breaker.
3. Remove the batteries from the remote controller.
87
Check before operation
CAUTION
FAN ONLY Operation
• Check that the air filters are installed.
• Check that the air outlet or inlet of the outdoor unit is not blocked.
Cleaning the air filter
Air filter
Clean the air filters every 2 weeks.
If the air filters are covered with dust, the performance of the air
conditioner will deteriorate.
Clean the air filters as often as possible.
1
2
Open the air inlet grille.
Lift the air inlet grille up to the horizontal position.
Take hold of the left and right handles of the air filter and lift
it up slightly, then pull it downward to take it out from the
filter holder.
3
4
Remove the filters.
Filter holder
Use a vacuum cleaner to remove the dust from the filters or
wash them with water. If you wash the air filters, dry them in
the shade.
5
6
Insert the upper portion of the air filter aligning right and left
edges on the indoor unit until correctly positioned.
Close the air inlet grille.
* If the filter lamp on the indoor unit is indicated, push the FILTER
button on the remote controller or the TEMPORARY button on
the indoor unit to turn off the lamp.
Filter holder
88
Cleaning the air inlet grille
1. Remove the air inlet grille.
Hold the both sides of the air inlet grille and open
upward.
Move the center arm to the left and remove the grille.
2. Wash it with water using a soft sponge or towel.
(Do not use metallic scrubbing brush or other hard
brushes.)
• Use of such hard objects will cause scratches on the
surface of the air inlet grille, and the coating to peel
off.
• If very dirty, clean the air inlet grille with a neutral
detergent, and rinse it off with water after removing it
from the unit.
3. Wipe out water from the air inlet grille and dry.
4. Fit the left and right arms of the air inlet grille to the
shafts on the two sides of the air conditioner and push in
completely, and then push in the center arm.
5. Check that the center arm has been completely inserted
and close the air inlet grille.
• Push the arrow locations (four) at the bottom of the air
inlet grille to check whether the grille is completely
closed.
AIR CONDITIONER OPERATIONS AND PERFORMANCE
3 minute protection function
A protection feature prevents the air conditioner from being activated for approximately 3 minutes when it is
restarted immediately after operation or when the power supply switch is turned on. This will protect the
machine.
Heating operation characteristics
Preheating operation
The air conditioner will not deliver warm air immediately after it is started.
Warm air flows out after approximately 5-minutes when the indoor heat exchanger warms up.
(The PRE.-DEF. lamp is on during the preheating operation.)
Warm air control
When the room temperature reaches the set temperature, the indoor fan speed is automatically reduced to
prevent cold draft.
The outdoor unit will stop.
Defrosting
If the outdoor unit is frosted during heating operation, defrosting is started automatically (for approximately 5
to 10 minutes). To maintain the heating effect, the PRE.-DEF. lamp is on.
• The fans on the indoor and outdoor units stop during the defrost operation.
• During defrost operation, defrosted water drains from the bottom plate of the outdoor unit.
89
Heating capacity
If the outdoor temperature is too low, it is recommended that additional heating appliances be used in con-
junction with the air conditioner.
Power failure
Power failure during operation will stop the unit completely.
• The OPERATION lamp (green) on the indoor unit will start flashing when power is restored.
• To restart operation, push the START/STOP button on the remote controller.
Air conditioner operating conditions
For proper performance, operate the air conditioner in the following temperature conditions:
Cooling
Outdoor temperature
Room temperature
: –5°C to 43°C
: 18°C to 32°C
operation
CAUTION Room relative humidity – less than 80 %. If the air conditioner operates
in excess of this figure, the surface of the air conditioner may cause dewing.
Heating
Outdoor temperature
Room temperature
: –15°C to 21°C
: Less than 30°C
operation
If air conditioner is used outside of the above conditions, safety protection may work.
PROBLEMS AND CAUSES
CAUTION
If any of the following conditions occur, turn off the main power supply switch and immediately contact the
dealer :
• The indicator lamps flash at short intervals (5 Hz) even though you have tried turning off the power
supply and turning on again after 2 to 3 minutes.
• Switch operation is erratic.
• The main power fuse often blows out, or the circuit breaker is often activated.
• A foreign matter or water has fallen into the inside of the air conditioner.
• Any other unusual condition is observed.
Before you ask for servicing or repairs, check the following points.
Recheck
Inoperative
• The main power switch is turned off.
• The circuit breaker is activated to cut off power supply.
• The main power fuse is blown.
• ON timer is set.
Does not cool well or heat well
• The air inlet or outlet of the outdoor unit is blocked.
• Doors or windows are opened.
• The air filter is blocked with dust.
• The louver is not at the correct position.
• The fan speed is set too low.
• The set temperature is too high. (In cooling operation)
• The set temperature is too low. (In heating operation)
90
Accessory parts and Parts to be procured locally
r Accessory parts
Part name
Q’ty
Shape
Part name
Q’ty
Shape
Mounting screw
Ø4mm x 25mm
Installation plate
1
8
Installation Manual
Owner’s Manual
1
1
Pattern paper
1
1
Service contact
address label
<Separate sold parts>
Part name
Q’ty
Shape
STANDBY
FILTER
F
A
N
CHECK
COOL
Y
PRE-HEA
T
D
R
DEFROST
LOUVER
MANUAL
HEAT AUTO
AUTO
CENTRAL
Wired remote
controller
F
I
X
TEMP.
1
FAN SPEED
LOUVER
r Parts to be procured locally
Connecting pipe (Liquid side)
Connecting cable
(6.35mm (diam.), Nominal (diam.) 1/4” thick 0.8mm)
RAV-SM560KRT-E, RAV-SM560AT-E
H07RN-F or 245IEC66 (1.0mm² or more)
(9.52mm (diam.), Nominal (diam.) 3/8” thick 0.8mm)
RAV-SM800KRT-E, RAV-SM800AT-E
Thermal insulation for refrigerant pipe
(10mm or more, thermal insulating foam polyethylene)
Connecting pipe (Gas side)
(12.7mm (diam.), Nominal (diam.) 1/2” thick 0.8mm)
RAV-SM560KRT-E, RAV-SM560AT-E
Thermal insulation for drain pipe
(10mm or more, foam polyethylene)
(15.9mm (diam.), Nominal (diam.) 5/8” thick 1.0mm)
RAV-SM800KRT-E, RAV-SM800AT-E
Drain pipe (Outer 26mm (diam.))
Tapes
Power supply cord
2.5mm² (H07RN-F or 245IEC66) or 3.5mm² (AWG-12)
Grounding cable (2.0mm (diam.) or more)
91
1
PRECAUTIONS FOR SAFETY
• Ensure that all Local, National and International regulations are satisfied.
• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the installation work, perform a trial operation to check for any problem.
Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
• Ask the customer to keep the Installation Manual together with the Owner’s Manual.
CAUTION
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT
DESTROY OZONE LAYER.
The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure
is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil
has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or
refrigerating oil does not enter the refrigerating cycle.
To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging
port of the main unit and installation tools are charged from those for the conventional refrigerant.
Accordingly the exclusive tools are required for the new refrigerant (R410A).
For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does
not enter. Moreover, do not use the existing piping because there are problems with pressure-resistance force
and impurity in it.
CAUTION
To Disconnect the Appliance from Main Power Supply.
This appliance must be connected to the main power supply by means of a switch with a contact separation of
at least 3 mm.
The installation fuse (25A D type
) must be used for the power supply line of this conditioner.
WARNING
• Ask an authorized dealer or qualified installation professional to install/maintain the air
conditioner.
Inappropriate installation may result in water leakage, electric shock or fire.
• Turn off the main power supply switch or breaker before attempting any electrical work.
Make sure all power switches are off. Failure to do so may cause electric shock.
• Connect the connecting cable correctly.
If the connecting cable is connected in a wrong way, electric parts may be damaged.
• When moving the air conditioner for the installation into another place, be very careful not
to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle.
If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes
abnormally high and it may resultingly causes pipe burst and injuries on persons.
• Do not modify this unit by removing any of the safety guards or by by-passing any of the
safety interlock switches.
• Exposure of unit to water or other moisture before installation may cause a short-circuit of
electrical parts.
Do not store it in a wet basement or expose to rain or water.
92
1
PRECAUTIONS FOR SAFETY
• After unpacking the unit, examine it carefully if there are possible damage.
• Do not install in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
• When the air conditioner is installed in a small room, provide appropriate measures to
ensure that the concentration of refrigerant leakage occur in the room does not exceed the
critical level.
• Install the air conditioner securely in a location where the base can sustain the weight
adequately.
• Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.
• If refrigerant gas has leaked during the installation work, ventilate the room immediately.
If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.
• After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas might
generate.
• Electrical work must be performed by a qualified electrician in accordance with the
Installation Manual. Make sure the air conditioner uses an exclusive power supply.
An insufficient power supply capacity or inappropriate installation may cause fire.
• Use the specified cables for wiring connect the terminals securely fix. To prevent external
forces applied to the terminals from affecting the terminals.
• Be sure to provide grounding.
Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.
• Conform to the regulations of the local electric company when wiring the power supply.
Inappropriate grounding may cause electric shock.
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible
gas.
If a combustible gas leaks, and stays around the unit, a fire may occur.
93
2
INSTALLATION PROCEDURE
Installation Diagram of Indoor Unit
Insulate the refrigerant pipes
For rear left and side pipe exit
separately with insulation, not together.
Hook
Wall
1
Installation
plate
Hook
Insert the cushion between the
indoor unit and wall, and lift indoor
unit to make work easier.
Min. 6 mm thick heat resisting polyethylene foam
The auxiliary piping can be connected
the left, rear left, rear, right or bottom.
Do not allow the drain hose to sag.
Cut the piping hole
sloped slightly
Right
Rear
Pipe
insulation
Left
Make sure to run the drain hose
sloped downward.
Bottom
Rear left
Mounting screw
Hook
Mounting the Installation Plate
55
65
For installation of the indoor unit,
use the paper template included.
Installation
plate
170
120
80
1
0 100
8
0
m
m
00
1
m
m
00
1
Indoor unit
Weight
Hook
Mounting screw Pipe hole
Hook
Indoor unit Thread
Pipe hole
When the installation plate is directly mounted on the wall
1. Securely fix the installation plate to the wall by screwing it through the upper and lower fixing holes.
2. To mount the installation plate on a concrete wall with anchor bolts, utilize the anchor bolt holes as illustrated in
the above figure.
3. Attach the installation plate horizontally to the wall.
CAUTION
When installing the installation plate with mounting screw, do not use the anchor bolt hole.
Otherwise the unit may fall down and result in personal injury and property damage.
Ø5mm hole
Anchor bolt
Mounting screw
Ø4 x 25mm
Projection
15mm or less
Clip anchor
(local parts)
94
3
SELECTION OF INSTALLATION PLACE
WARNING
• Install the air conditioner where there is sufficient strength to withstand the weight of the unit.
If the strength is not sufficient, the unit may fall down resulting in injury.
CAUTION
Upon approval of the customer, install the air conditioner in a place that satisfies the
following conditions.
• Place where the unit can be installed horizontally.
• Place where a sufficient servicing space can be ensured for safe maintenance and check.
• Place where drained water will not cause any problem.
Avoid installing in the following places.
• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas
(hot spring). (Should the unit be used in these places, special protective measures are needed.)
• Place exposed to oil, vapor, oil smoke or corrosive gas.
• Place where organic solvent is used nearby.
• Place close to a machine generating high frequency.
• Place where the discharged air blows directly into the window of the neighboring house. (For outdoor unit)
• Place where noise of the outdoor unit is easy to transmit.
(When installing the air conditioner on the boundary with the neighbor, pay due attention to the level of noise.)
• Place with poor ventilation.
• Where the ceiling height is more than 3m.
• Where the floor/wall/ceiling structure is unable to support the weight of the unit.
4
INSTALLATION OF INDOOR UNIT
WARNING
• Install the air conditioner certainly at a place to sufficiently withstand the weight.
If the strength is insufficient, the unit may fall down resulting in human injury.
• Perform a specified installation work to guard against an earthquake.
An incomplete installation can cause accidents by the units falling and dropping.
Locate the unit so as to provide uniform circulation of chilled air.
Avoid locating the unit as shown in the bad-marked figures below :
Good location
Bad location
Bad location
Evenly hot or cooled
Shaded area well hot or cooled
Shaded area well hot or cooled
If a good location is not possible, use a fan to circulate the air evenly throughout the room.
95
5
DRAIN PIPING WORK
Piping and Drain Hose Installation
In case of right-side exit
• Cut out the knockout portion by the slits with a knife
or pair of wire cutters as necessary.
Slit
(Body right)
In case of downward pipe exit
• Cut out the knockout portion by the slits with a knife
or pair of wire cutters as necessary.
Slit
(Body right)
Piping via left-hand connection
Bend the connecting pipe so that it is laid within 43mm above the wall surface. If the connecting pipe is laid
exceeding 43mm above the wall surface, the indoor unit could be unstable when set on the wall. When bending the
connecting pipes, always use a suitable bending tool to avoid damaging the pipes.
Bend the connection pipe within a radius of 30mm.
To connect the pipe after installation of unit (figure)
(To the front of the flare)
465mm
Liquid side
365mm
Gas side
Outward form
of indoor unit
R 30mm
Use the handle of a screwdriver, etc.
NOTE :
If the pipe is bent incorrectly, the indoor unit could be unstable on the wall.
After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes and
insulate as necessary.
96
5
DRAIN PIPING WORK
CAUTION
• Bind the auxiliary pipes (two) and connecting cable with tape tightly. In case of left-side pipe exit and rear-left
exit, bind the auxiliary pipes (two) only with facing tape.
Indoor unit
Auxiliary pipes
Connecting cable
Drain hose
Installation plate
• Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit.
• Carefully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound
on the connecting pipe to avoid double-taping at the joint, then seal the joint with vinyl tape, etc.
• In order to reduce the possibility of condensed water being produced within the indoor unit, make sure to
insulate both the connecting pipes.
(Use a suitable form of insulation material specifically design designed for refrigeration pipe work.)
• When bending a pipe, ensure care is taken to prevent pipe damage.
Drainage
1. Run the drain hose sloped downwards.
Do not rise the drain hose.
Do not form the drain hose
into the waved shape.
50 mm
or more
Do not put the
drain hose end
into water.
Do not put the drain
hose end into the
drainage ditch.
2. It is not possible to add water to the drain pan to
confirm correct drainage. To do this, the unit must be
operated in the COOL mode.
Pipe insulation
3. When connecting extension drain hose, insulate the
connecting part of extension drain hose with pipe
insulation.
Drain hose Inside the room
Extension drain hose
CAUTION
Arrange the drain pipe to allow proper drainage from the unit. Incorrect drainage can result in condensation
problems.
This structure of this air conditioner is designed
condensed water, which may form on the back of the
indoor unit, into the drain pan.
Wall
Drain
guide
Therefore, do not store the power cables and other parts
within the drain guide.
Space for
pipes
97
6
REFRIGERANT PIPING
Refrigerant Piping
1. If the outdoor units are to be mounted on a wall, make sure that the platform supporting is sufficiently strong.
The platform should be designed and manufactured to maintain its strength over a long period of time, and
sufficient consideration should be given to ensuring that the outdoor unit will not fall.
2. Use copper pipe with 0.8 mm or more thickness.
3. Flare nut and flare works are also different from those of the conventional refrigerant.
Take out the flare nut attached to the main unit of the air conditioner, and use it.
CAUTION
IMPORTANT 4 POINTS FOR PIPING WORK
1. Take away dust and moisture from the inside of the connecting pipes.
2. Tight connection (between pipes and unit)
3. Evacuate the air in the connecting pipes using VACUUM PUMP.
4. Check the gas leakage. (Connected points)
Permissible Piping Length and Head
The maximum piping length from the outdoor to indoor unit
The maximum height difference outdoor/indoor unit
Outdoor unit is above
Outdoor unit is below
30 m (Without charge 20m)
(RAV-SM560AT-E)
50 m (Without charge 20m)
(RAV-SM800AT-E)
30m
15m
Flaring
B
Insert a flare nut into the pipe, and flare the pipe.
As the flaring sizes of R410A differ from those of refrigerant R22, the flare
tools newly manufactured for R410A are recommended.
However, the conventional tools can be used by adjusting projection margin
of the copper pipe.
• Projection margin in flaring : B (Unit : mm)
Imperial (Wing nut type)
Rigid (Clutch type)
R410A tool used
R410A R22
Conventional tool used
Outer diam. of copper pipe
R410A
R22
Outer diam. of
copper pipe
R410A
R22
6.35
9.52
12.7
1.5 to 2.0
1.5 to 2.0
2.0 to 2.5
1.0 to 1.5
1.0 to 1.5
1.5 to 2.0
6.35
9.52
12.7
0 to 0.5 (Same as left) 1.0 to 1.5
0 to 0.5 (Same as left) 1.0 to 1.5
0 to 0.5 (Same as left) 1.0 to 1.5
0.5 to 1.0
0.5 to 1.0
0.5 to 1.0
In the case of flaring for R410A with the conventional
flare tool, pull out it approx. 0.5 mm more than that for
R22 to adjust to the specified flare size.
• Flaring dia meter size : A (Unit : mm)
*
A +0
-
0.4
Outer diam. of copper pipe
The copper pipe gauge is useful
R410A
9.1
R22
9.0
A
for adjusting projection margin size.
6.35
9.52
12.7
13.2
16.6
13.0
16.2
98
6
REFRIGERANT PIPING
• Tightening torque of flare pipe connections
Tightening connection
Pressure of R410A becomes higher than that of R22.
(Approx. 1.6 times) Therefore, using a torque
wrench, tighten firmly the flare pipe connecting
sections which connect the indoor and outdoor units
up to the specified tightening torque.
Align the centers of the connecting pipes and tighten
the flare nut as far as possible with your fingers. Then
tighten the nut with a spanner and torque wrench as
shown in the figure.
Incorrect connections may cause not only a gas
leakage, but also a trouble of the refrigeration cycle
or compressor damage.
CAUTION
• Do not apply excess torque. Otherwise, the nut
may crack depending on the conditions.
Flare at
indoor unit side
(Unit : N•m)
Outer diam. of copper pipe
6.35 mm (diam.)
Tightening torque
14 to 18 (1.4 to 1.8 kgf•m)
33 to 42 (3.3 to 4.2 kgf•m)
50 to 62 (5.0 to 6.2 kgf•m)
63 to 77 (6.3 to 7.7 kgf•m)
9.52 mm (diam.)
Flare at
outdoor unit side
12.7 mm (diam.)
15.9 mm (diam.)
Half union
Flare nut
Internally
Externally
threaded side
threaded side
Use a wrench to secure.
Use a torque wrench to tighten.
7
EVACUATING
3. Open fully the low pressure side handle of the
gauge manifold valve.
AIR PURGE
Evacuate the air in the connecting pipes and in the
4. Operate the vacuum pump to start for evacuating.
indoor unit using vacuum pump.
Do not use the refrigerant in the outdoor unit.
For details, see the manual of vacuum pump.
Perform evacuating for about 35 minutes if the
piping length is total 30 meters for model SM560
and 50 meters for model SM800.
(assuming a pump capacity of 27 liters per minute.)
Then confirm that the compound pressure gauge
reading is –101 kPa ( –76 cmHg).
Use a vacuum pump
5. Close the low pressure side valve handle of gauge
manifold.
Be sure to use a vacuum pump with counter-flow
prevention function so that inside oil of the pump does
not flow backward into pipes of the air conditioner
when the pump stops.
6. Open fully the valve stem of the packed valves
(both sides of Gas and Liquid).
1. Connect the charge hose from the manifold valve to
the service port of the gas side packed valve.
7. Remove the charging hose from the service port.
8. Securely tighten the caps on the packed valves.
2. Connect the charge hose to the port of vacuum
pump.
99
<For RAV-SM560AT-E model>
Packed valve handling precautions
• Open the valve stem all the way out ; do not try to
open it beyond the stopper.
Compound pressure gauge
Pressure gauge
• Securely tighten the valve stem cap in torque as
follows:
–101kPa
(–76cmHg)
Manifold valve
Gas side (12.7 mm (diam.))
Gas side (9.52 mm (diam.))
50 to 62 N•m (5.0 to 6.2 kgf•m)
Handle Lo
Handle Hi
(Keep fully closed)
33 to 42 N•m (3.3 to 4.2 kgf•m)
Charge hose
(For R410A only)
Charge hose
(For R410A only)
Liquid side (6.35 mm (diam.)) 14 to 18 N•m (1.4 to 1.8 kgf•m)
Service port
14 to 18 N•m (1.4 to 1.8 kgf•m)
Vacuum pump adapter
for counter-flow prevention
(For R410A only)
Hexagonal wrench is required.
Vacuum
pump
Packed valve (Gas side)
Service port (Valve core (Setting pin))
Flare nut
Valve unit
<For RAV-SM800AT-E model>
Stopper
Charge cap
• As shown in the figure, be sure to use a double
spanner to loosen or tighten the flare nut of the valve
at gas side. If using a single spanner, the nut cannot
be tightened with necessary tightening torque.
Charge port
Valve rod
On the contrary, use a single spanner to loosen or
tighten the flare nut of the valve at liquid side.
Cover
<For RAV-SM800AT-E model>
Cap
Compound pressure gauge
Pressure gauge
Piping valve
–101kPa
(–76cmHg)
Manifold valve
Loosened
Tightened
Handle Lo
Handle Hi
(Keep fully closed)
Charge hose
(For R410A only)
Flare nut
Charge hose
(For R410A only)
Service port
(Valve core (Setting pin))
Vacuum pump adapter
for counter-flow prevention
(For R410A only)
SM800 type valve at gas side
Vacuum
pump
Cover
Packed valve at gas side
Do not put the spanner or
torque wrench, etc. on
the cover.
The valve may be broken.
100
7
EVACUATING
Valve unit
Valve handling precautions
• Open the valve stem or the handle until it strikes
the stopper. It is unnecessary to apply further
force.
Handle
• Securely tighten the cap with a torque wrench.
Pull out the handle and
using cutting pliers, etc.
turn it counterclockwise
by 90˚. (Open fully)
• Cap tightening torque
Ø6.4
Ø9.5
14 to 18N•m (1.4 to 1.8kgf•m)
33 to 42N•m (3.3 to 4.2kgf•m)
33 to 42N•m (3.3 to 4.2kgf•m)
20 to 25N•m (2.0 to 2.5kgf•m)
14 to 18N•m (1.4 to 1.8kgf•m)
Charge port
Flare nut
Valve unit
Valve
size
Ø12.7
Ø15.9
Charge port
Push in handle.
Additional refrigerant
1. The amount of refrigerant put into the outdoor unit
at the factory is sufficient to fill up to 20m of
refrigerant piping work.
Charge port
Flare nut
2. If the length of the refrigerant piping work is 20m or
less, addition of refrigerant at the installation site is
unnecessary.
Handle position
3. If the length of the piping work exceeds 20m, extra
refrigerant must be added. Refer to the outdoor
installation manual for details of the extra amounts.
4. Overcharge or undercharge of refrigerant in the
outdoor unit may cause malfunction of the
compressor.
Add Only R410A Refrigerant to These Units
Handle
Opened fully
Closed completely
Heat insulation
1. Provide heat insulation on the refrigerant piping on
both the liquid side and gas side separately, and
ensure that all joints in the insulation are compleatly
sealed (without gap).
1. Use the vacuum pump, vacuum pump adapters,
and gauge manifold referring to the manuals
attached to each tool before using them. For the
vacuum pump, check oil is filled up to the specified
line of the oil gauge.
*
2. Since the temperature of the piping on the gas side
increases during heating operations, the heat
insulating material used must be able to withstand
temperatures of more than 120°C.
2. While the air is purged, check again that the
connecting port of charge hose, which has a
projection to push the valve core, is firmly con-
nected to the charge port.
*
3. Use the pipe insulation supplied in the accessory
pack to insulate the piping connecting section on
the indoor unit side.
101
8
ELECTRICAL WORK
For the air conditioner that has no power cord.
Wiring between units
NOTE:
1. Connect the wires between the units correctly.
Errors made in the connections can result in the
unit malfunctioning.
For selection and connection method of the power
supply cords, refer to the details in the Installation
Manual of the outdoor unit.
2. Connect the control wires between the outdoor unit
and indoor unit as shown in the figure below :
CAUTIONS
Wiring connections
• If incorrect/incomplete wiring is carried out, it
may cause an electrical fire or smoke.
• Prepare the power supply for exclusive use with
the air conditioner.
Air inter
grille
• Be sure to use the cord clamps specified
positions with attached to the product.
Front panel
• Do not damage or scratch the conductive core
and inner insulator of power and inter-connecting
cables when peeling them.
2
1
• Be sure to comply with local cords on running
the wire from outdoor unit to indoor unit (size of
wire and wiring method etc.)
Cord clamp
Terminal cover
Earth line
• Use the power cord and Inter-connecting cable
with specified thickness, specified type, and
protective devices specified.
Screw
Connecting
cable
Screw
How to wire
1. Connect the connecting cable to the terminal as
identified with their respective matched numbers on
the terminal block of indoor and outdoor unit.
H07 RN-F or 245 IEC 66 (1.0 mm2 or more)
2. Insulate the unsheathed redundant cords
(conductors) with electrical insulation tape.
Process them so that they do not touch any
electrical or metal parts.
3. For inter-unit wiring, do not use a cut wire jointed to
another on the way.
10
1
2
3
10
3
2
1
60
50
Earth line
Connecting
cable
102
8
ELECTRICAL WORK
Installation of Remote Controllers
Remote Controller Cabling
Cabling diagram
Precautions
1. Low-voltage circuit provision is used for remote
controller communication, and as such, the remote
controller cable is subject to the low-power circuit
provision of internal wiring regulations and therefore
it cannot be brought into direct contact with a high-
voltage AC power line, or housed in the same
conduit tube as a power line.
Terminal block
for remote controller
cabling of indoor unit
Remote
controller unit
or sensor part
A
B
C
A
B
C
Remote controller cable
(Local procure)
Flush wall mounting
• Feed the 3-core cable (obtained locally) though the
back of the remote controller and then connect to the
ABC terminals.
• For details of cabling/installation of the remote
controller, refer to the Installation Manual packaged
in the remote controller.
• Attach the remote controller to the wall using two
suitable mounting screws (obtained locally).
3-core cable,
obtained locally
Mounting screws (x 2)
obtained locally
Wall surface mounting
• Attach the remote controller to the wall using two
suitable mounting screws (obtained locally).
• Connect the 3-core cable (obtained locally) to the
ABC terminals.
• Make a U-shaped cut-out in the center of the top
edge of the decorative cover and pass the 3-core
cable though the cut-out.
3-core cable,
obtained locally
Mounting screws (x 2)
obtained locally
103
9
IMPROVING SYSTEM EFFICIENCY
Air flow direction adjustment
1. To improve the effects of cooling and heating, use the outlet louver appropriately for cooling and heating
operations. When in cooling operation the most efficient louver position will be horizontal and when in heating
operation the optimum louver position is downwards.
Increasing heating effect
1. One method increase the warming effect is to fit an additional means of re-circulating the warmed air from the
upper part of the room :
2. However if the warming effect of the air conditioner is not good owing to the installation position or the structure of
the room, then reset the room temperature regulator as follows to raise the temperature of the room. Adjust
position 1 and 2 on DIP switch SW03 located on the indoor P.C. board, according to the table below :
Position 1 : ON Position 1 : OFF Position 1 : OFF
Dip switch SW03
position 1 & 2
Position 2 : OFF Position 2 : ON Position 2 : OFF
Temperature increased Factory pre-set +2°C
+4°C
Options
Test operation
To switch the TEST RUN (COOL) mode, push TEMPORARY button for 10
seconds. (The beeper will make a short beep.)
TEMPORARY button
10
FINAL INSTALLATION CHECKS
Precautions
Check and Test Operation
1. Ensure that the electrical cable used for
power supply and control of the system is
unable to come into contact with either
service valves or piping work which are not
insulated.
• Pressure of R410A is approx. 1.6 times of that of R22.
If installation work is incompletely finished, a gas leakage
may occur at the cases such as pressure rise during
operation.
Therefore, be sure to test the piping connections for leakage.
• Check the flare nut connections, valve stem cap
connections and service port cap fittings
for gas leak with a leak detector or soap water.
Electrical wiring
1. When installation is complete, check that all
power supply and interconnecting wiring has
been appropriately protected.
Piping cover
Refrigerant piping
Cord clamp
Flare nut
Indoor/outdoor
connections
1. When refrigerant and drain piping have been
completed. Ensure that all pipework is fully
insulated and apply finishing tape to seal the
insulation.
connecting cables
(Indoor unit)
Power cable
Valve
cover
104
10
FINAL INSTALLATION CHECKS
Self-Diagnosis by LED Indication
Useful Functions (SM800AT-E only)
In addition to the code checking by remote controller of the indoor unit, troubles of the outdoor unit can be diagnosed by LED
indications on the cycle control P.C. board of the outdoor unit. Utilize them for various checks.
For the check by remote controller of the indoor unit, refer to the Installation Manual of the indoor unit.
Before a check, confirm each bit of the DIP switch is set to OFF position.
LED indication and code checking
Cycle control P.C. board
DIP switch
LED indication
Cause
Heat exchanger sensor (TE) error
SW800
D800 D801 D802 D803
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Suction sensor (TS) error
Discharge sensor (TD) error
High-pressure protection error
Outdoor temperature sensor (TO) error
DC outside fan error
LED
indication
D800
: Red
¡
Communication error between IPDU
Discharge temp. error
D801
: Yellow
¡
ON
EEPROM error
D802
: Yellow
¡
Communication error between IPDU
G-Tr short-circuit protection
1
2
3
4
D803
: Yellow
¡
Detect circuit error
Current sensor error
Comp. lock error
: Rapid flash
: Go off
Comp. break down
¥
l
¡
Phase missing detection, Detection of coming-off of CT current sensor
Serial communication error by thermo. operation of Comp. case
: Go on
Changes in the product and components
Installation/ServicingTools
In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged accidentally, service
port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch)
• In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite
side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)
New tools for R410A
New tools for R410A
Applicable to R22 model
Changes
As pressure is high, it is impossible to measure by means of conventional
gauge. In order to prevent any other refrigerant from being charged, each
port diameter is changed.
Gauge manifold
×
In order to increase pressure resisting strength, hose materials and port
size are changed (to 1/2 UNF 20 threads per inch).
When purchasing a charge hose, be sure to check the port size.
Charge hose
×
Electronic balance
for refrigerant charging
As pressure is high and gasification speed is fast, it is difficult to read the
indicated value by means of charging cylinder, as air bubbles occur.
¡
Torque wrench
The size of opposite sides of flare nuts have been increased. Incidentally,
a common wrench is used for nominal diameters 1/4 and 3/8.
×
¡
(nominal diam. 1/2, 5/8)
Flare tool
(clutch type)
By increasing the clamp bar’s receiving hole, strength of spring in the tool
has been improved.
Gauge for projection adjustment
—
—
Used when flare is made with using conventional flare tool.
Connected to the conventional vacuum pump. It is necessary to use an
adapter to prevent vacuum pump oil from flowing back to the charge hose.
The charge hose connecting part has two ports-one for conventional
refrigerant (7/16 UNF 20 threads per inch) and one for R410A.
If the vacuum pump oil (mineral) mixes with R410A a sludge may occur
and damage the equipment.
Vacuum pump adapter
¡
Gas leakage detector
Exclusive for HFC refrigerant.
×
• Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R410A) and protector coating in the U,S.’s ARI
specified rose color (ARI color code: PMS 507).
• Also, the “charge port and packing for refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to the charge
hose’s port size.
105
11
ENVIRONMENT
Environmental Issues
Product maintenance
1. To minimize the chances of environmental damage and to ensure the efficient operation of the unit, it is
recommended to have the air conditioner periodically checked and serviced by a qualified engineer.
Product disposal
1. Please dispose of the air conditioner unit in an environmentally responsible manner.
Recycling is the preferred disposal method.
2. When disposing of an air conditioner system, contact either the manufacture, your local environmental control
authority or a local waste disposal company for advice.
3. Ensure all packing material is either recycled or disposed of in accordance with local regulations.
4. The refrigerant gas within the unit should only be removed by an authorized company.
WARNING
Discharge of refrigerant to atmosphere is illegal and may lead to prosecution.
106
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