CASSETTE TYPE AIR CONDITIONER
Operation & Installation Manual
Indoor Unit
HBU-28CH03
HBU-28HH03
HBU-36HH03
HBU-42CI03
HBU-42CH03
HBU-42HI03
HBU-48CH03
HBU-48HJ03
HBU-48CK03
No.0150500604
C
Please read this operation manual before using the air conditioner.
Please keep this manual carefully and safely.
Cautions
Disposal of the old air conditioner
Consult your local authorities for the name and
address of the waste materials collecting
centers and waste paper disposal services
nearest to your house.
Before disposing an old air conditioner
that goes out of use, please make sure it's
inoperative and safe. Unplug the air
conditioner in order to avoid the risk of
child entrapment.
Safety Instructions and Warnings
Before starting the air conditioner, read the
information given in the User's Guide
carefully. The User's Guide contains very
important observations relating to the
assembly, operation and maintenance of the
air conditioner.
It must be noticed that air conditioner
system contains refrigerants, which require
specialized waste disposal. The valuable
materials contained in a air conditioner can
be recycled. Contact your local waste
disposal center for proper disposal of an
old air conditioner and contact your local
authority or your dealer if you have any
question. Please ensure that the pipework
of your air conditioner does not get
damaged prior to being picked up by the
relevant waste disposal center, and
contribute to environmental awareness by
insisting on an appropriate, anti-pollution
method of disposal.
The manufacturer does not accept
responsibility for any damages that may
arise due to non-observation of the following
instruction.
Damaged air conditioners are not to be
put into operation. In case of doubt, consult
your supplier.
Use of the air conditioner is to be carried
out in strict compliance with the relative
instructions set forth in the User's Guide.
Disposal of the packaging of your new
air conditioner
Installation shall be done by professional
people, don't install unit by yourself.
All the packaging materials employed in
the package of your new air conditioner
may be disposed without any danger to the
environment.
For the purpose of safety, the air
conditioner must be properly grounded in
accordance with specifications.
The cardboard box may be broken or cut
into smaller pieces and given to a waste
paper disposal service. The wrapping bag
made of polyethylene and the polyethylene
foam pads contain no fluorochloric
hydrocarbon.
Always remember to unplug the air
conditioner before opening inlet grill. Never
unplug your air conditioner by pulling on the
power cord. Always grip plug firmly and
pull straight out from the outlet.
All these valuable materials may be taken to a
waste collecting center and used again after
adequate recycling.
1
Cautions
3. The wiring method should be in line with
the local wiring standard.
4. The power cable and connecting cable
are self-provided.
All electrical repairs must be carried out
by qualified electricians. Inadequate repairs
may result in a major source of danger for
the user of the air conditoiner.
The requirement of the power cable:
Do not damage any parts of the air
conditioner that carry refrigerant by
piercing or perforating the air conditioner's
tubes with sharp or pointed items, crushing
or twisting any tubes, or scraping the
coatings off the surfaces. If the refrigerant
spurts out and gets into eyes, it may result
in serious eye injuries.
Power Cable
3G 4.0mm2
Model
HBU-28CH03 HBU-28HH03
HBU-36HH03 HBU-42CH03
HBU-42CI03 HBU-42HI03
HBU-48CH03 HBU-48HJ03
HBU-48CK03
5G 2.5mm2
The requirement of the connecting cable:
Do not obstruct or cover the ventilation
grille of the air conditioner. Do not put
fingers or any other things into the
inlet/outlet and swing louver.
Model
Connecting cable
HBU-28CH03 HBU-36HH03
HBU-42CH03 HBU-42CI03
HBU-42HI03 HBU-48CH03
HBU-48HJ03 HBU-48CK03
4G 0.75mm2
Do not allow children to play with the air
conditioner. In no case should children be
allowed to sit on the outdoor unit.
6G 0.75mm2
HBU-28HH03
All the cables shall have got the European
authentication certificate.
Specifications
5. The breaker of the air conditioner should
be all-pole switch; and the distance
between its two contacts should be no less
3mm. Such means for disconnection must
be incorporation in the fixed wiring.
6. The waste battery shall be disposed
properly.
The refrigerating circuit is leak-proof.
The machine is adaptive in following
situation
1. Applicable ambient temperature range:
Rated Maximum Minimum
27
19
35
24
20
14.5
7
32
23
43
26
27
-
18
14
10
6
15
-
DB
WB
DB
WB
DB
WB
DB
WB
Indoor
Cooling
Heating
7. The indoor unit installation height is at
least 2.5m.
outdoor
Indoor
24
18
-7
-
outdoor
6
2. If the supply cord is damaged, it must be
replaced by the manufacturer or its service
agentor a similar qualified person.
2
Cautions
Safety cautions
Carefully read the following information in order to operate the airconditioner correctly.
Below are listed three kinds of Safety Cautions and Suggestions.
WARNING!
CAUTION!
Incorrect operations may result in severe consequences of death or serious injuries.
Incorrect operations may result in injuries or machine damages; in some cases may
cause serious consequences.
INSTRUCTIONS: These information can ensure the correct operation of the machine.
Be sure to conform with the following important Safety Cautions.
The Safety Cautions should be at hand so that they can be checked at any time when needed.
If the conditioner is transferred to the new user, this manual should be as well transferred to the new user.
WARNING!
Don't blow the human body with the cooling
air too long, and don't let the room tempera-
ture decrease too low
Please let the dealer be responsible for installing
the conditioner.
Incorrect installation may cause water leak, elec-
trical shock and fire hazard.
either.
Otherwise the one
will feel unpleasant
or harm ones' health.
Don't put fingers or any other things into the
inlet/outlet and swing louver while the condi-
tioner is in operation.
Because the highspeed
fan is very dangerous
If any abnormal phenomena is found (e. g.
smell of firing), please cut off the power
supply immediately, and contact the dealer
to find out the handling method.
In such case, to continue
and may cause injuries.
using the conditioner will
damage the conditioner,
Call the dealer to take measures to prevent the
refrigerant from leaking.
switch
off
and may cause electrical
shock or fire hazard.
If conditioner is installed in a small room be sure
to take every measure in order to prevent suffoca-
tion accident even in case of refrigerant leakage.
When need maintenance and repairment,
call dealer to handle it.
Incorrect mainten-
ance and repairment
may cause water
When conditioner is deinstalled or reinstalled
dealer should be responsible for them.
Incorrect installation may cause water leaking,
electrical shock and fire hazard.
leak, electrical shock
and fire hazard.
3
Cautions
CAUTIONS!
Don't operate the air-con-
ditioner with damp hands.
Conditioner should not be used for any other
purpose other than airconditioning.
Don't use air-conditioner for any other special
purposes, e.g. the preservation and protection
of food, animals, plants,
pecision apparatus as well
as work of art, otherwise
the qualities of these
stuffs may be damaged.
Otherwise will be shocked.
Only use correctly-typed fuse.
May not use wire or any other
materials replacing fuse, other-
wise may cause faults or fire
accidents.
Don't place any burning unit
in the air flow of air-conditioner,
which may cause incomplete
combustion.
Don't dismantle the outlet of the outdoor unit.
The exposure of fan is
very dangerous which
may harm human be-
ings.
No inflammable spray fluid
should be permitted to be
placed or used near to air-
conditioner otherwise may
cause fire accidents.
When air-conditioner is co-used with other
heat-radiator the frequent replacement of
room atmosphere should be required.
Inefficient venti-
lation may cause
suffocation.
Air-conditioner should be
cleaned only after power
supply is cut off to keep
from shock or hurt.
After a long time use of air-conditioner the
base should be checked for any damages.
If the damaged base is
not repaired, the unit
may fall down and
Don't clean air-conditioner
with water.
Otherwise may cause
shock.
cause accidents.
No goods or nobody is permitted to placed on
or stand on outdoor unit.
When use the fumigating insecticide don't
open air-conditioner.
The falling of goods and
people may cause acci-
dents.
Otherwise the poisonous chemicals may settle
in air-conditioner which harm the health of
chemical-allergic people.
Pets and plants should not be blowed directly
in the air flow.
Otherwise will suffer
damage.
4
Cautions
Installation
Please ask the dealer or specialist to install, never try by the users themselves. After the
installation please be sure of the following conditions.
WARNING !
Please call dealer to install the air-conditioner.
Incorrect installation may cause water leaking, shock and fire hazard.
CAUTION !
Air-conditioner can't be installed in the
environment with inflammable gases
because the inflammable gases near to air-
conditioner may cause fire hazard.
Connect earthing wire.
Earthing wire should not be con-
nected to the gas pipe, water pipe,
lightning rod or phone line, in-
correct earthing may cause shock.
Earthing
Installed electrical-leaking circuit breaker.
It easily cause electrical shock without circuit
breaker.
Use discharge pipe correctly to ensure
efficient discharge.
Incorrect pipe use may cause water leaking.
[Location]
Air-conditioner should be located in well-vented
and easily-accessible place.
As required, take measures against heavy snow.
Air-conditioner should not be located in the
following places:
(a) Places with machine oils or other oil vapours.
(b) Seaside with high salt content in the air.
(c) Near to hot spring with high content of sulfide
gases.
(d) Area with frequent fluctuation of voltage e.g.
factory, etc.
(e) In vehicles or ships.
[Wiring]
Air-conditioner should be equipped with special
power supply wire.
[Operating noise]
Chose the following locations:
(a) Capable of supporting air-conditioner weight,
don't increase operating noise and vibration.
(b) Hot vapour from outdoor unit outlet and ope-
rating noise don't disturb neighbour.
(f) Kitchen with heavy oil vapour or humidity.
(g) Near to the machine emitting electric-magnetic
waves.
No obstacles around the outdoor unit outlet.
(h) Places with acid, alkali vapuor.
TV, radio, acoustic appliances etc are at least 1 m
far away to the indoor unit, outdoor unit, power
supply wire, connecting wire, pipes, otherwise
images may be disturbed or noises be created.
5
Introduction to Spare Parts
Air ourlet blade
(adjust air outlet direction
by the air direction adjusting
button on remote controller)
Suction grill
Air filter
(located in the suction grill)
6
Maintenance
[Clean air filter]
NOTE
When having to clean, don't dismantle air-filter,otherwise may cause faults.
In the environment where there is too much dust, air filter should be cleaned for
more times.
(about half a year one time)
(B) Wash with water.
1. Open inlet grill
With too much dust, use soft brush and neutral
detergent.
Pull the two handles at the same
time, slowly draw them out.
Swing off the water,
and then place in cool
place.
4. Install air filter
Put filter into protruding parts at the top of the
inlet grill.
Remove the air inlet grill
2. Dismantle air filter
5. Close inlet grill
the reverse sequance of 1.
Bottom of filter
[Clean outlet and shell]
CAUTION!
Clip cpening
Frame of air inlet grill
Don't use gasoline, benzene, dilutant, polishing
powder, or liquid inseticide.
3. Clean
CAUTION!
Don't wash with water over 50 , otherwise may
cause discoloring or deforming.
Don't wash with water over 50 , to prevent
discoloring or deforming.
Use soft dry cloth to scrub.
Don't dry over fire. Filter maybe burn.
If duse not removed,can use water or neutral
detergent.
(A) Remove dust with vacuum filter.
If ceiling built-in conditioner's swing plate too
dirty, it can be dimantled(as described below)
and cleaned.
7
Maintenance
Seasonal Reserve
Post-season Care
Operate the unit with FAN mode on a fair day for about half
a day to dry the inside of the unit well.
Stop operation and turn off the power supply switch .Electric
power is consumed even the air conditioner is in stop.
Clean the air filter, indoor unit and outdoor unit,and cover
the unit with dustcoat.
Pre-season Care
See that there is no obstacles blocking the air inlet and
air outlet of both indoor and outdoor unit to avoid reduce
the working efficiency.
Be sure to install the air filter, ensure that the air filter is not dirty. Otherwise may
result in machine damages or cause malfunciton due th dust inside the unit
To prevent compressor when start in HEAT mode, please
cut in the power supply switch 12 hours before starting
run,furthermore, always keep the power supply switch
on during the using senson.
NOTE
1.The inner part of indoor unit must be cleaned. Consult dealer, because clean must be
done by technician.
2.In cooling operation, discharging system discharge water in room.
8
Trouble Shooting
The followings are not malfunction
Water flowing sound is heard
When the air conditoner is started, when
the compressor starts or stops during
operation or when the air conditioner is
stopped,it sometimes sounds "Bi- Bi-"or
"Godo-Godo". It is the flowing sound of
the refrigerant , not a malfunction.
Hua
Hua
Cracking sound is heard
It smells.
This is caused by heat expansion or
contraction of plastics
Air blown out from the indoor unit
sometimes smells. The smell results from
smells of furniture, paint , tobacco
absorbed by indoor unit.
During operation, white fog comes out of When in COOL or DRY mode, a thin water
fog can be seen blown out of unit ,this is
the condensed fog because the suddenly
cooled indoor air is blown out.
indoor unit.
To prevent frost from being accumulated
on the indoor unit heat exchanger, it
sometimes automatically switched into the
FAN mode,but it will soon back to the
cooling mode.
Automatically switch into FAN mode during
cooling.
The air conditioner cannot be restarted soon Please wait for three minutes.
after it stops.
This is because of the self-protection
Air conditioner does not start?
function of the system, therefore,it cannot
be restarted for about three minutes after
it stops.
9
Trouble Shooting
Air does not blow or the fan speed cannot
be changed during drying.
In DRY mode, when room temperature
becomes 2 higher than temperature
setting, unit rill run intermittently at LO
speed regardless of FAN setting
Water or vapor generated from the outdoor
unit during heating.
To get ride of the excess heat, indoor fan
will continue running for a while after unit
autom-atically stops.
During heating,indoor fan is still running
even unit is stopped.
Please check the following things about your air conditioner before making a service call.
Unit fails to start.
Is the earth leakage
breaker in action ?
Is the power supply switch on? Is city supply power normal?
ON
OFF
Be sure to turn off the
power supply switch
immediately and
contact the sales dealer.
Power supply switch is not in
ON position.
10
When Trouble Happens
Insufficient cooling or heating
The operation controller
adjusted as required
Air filter too dirty ?
Horizontal swing louver
upward ? (in HEAT mode)
Door or window left opened ?
Any obstacle exists at the air
inlet or outlet?
Insufficient cooling
Too crowed in the room ?
Sunlight direct into the
room ?
Any other heat sources in the
room?
Cooled air blown out ( when heating)
When the air conditioner does not operate properly after
you have checked the above-mentioned items or when
following phenomenon is observed,stop the operation
of the air conditioner and contact your sales dealer.
1)The fuse or breaker often shuts down.
2)Water drops off during cooling or drying operation.
3)There is an irregularity in operation or abnormal sound
that is audible.
11
When Trouble Happens
Failure code list
Failure code Power lamp flash failure description
Reasons
on wired
times/LED on
controller
PCB flash times
E0
E1
10
1
Fault in drain system Float switch is open
Indoor ambient Sensor broken down or short circuit for
temp. sensor failure more than 2m continuously
Indoor pipe
Sensor broken down or short circuit for more
E2
E3
2
3
temp. sensor failure than 2m continuously
Outdoor ambient
temp. sensor failure than 2m continuously
Sensor broken down or short circuit for more
Outdoor pipe or Sensor broken down or short circuit for more
discharge temp. than 2m continuously or outdoor discharge
4
5
E4
sensor failure
temp. over 120 for 3 times continuously in
30m
Indicate phase failure when been electrified
for the first time, indicate overcurrent
protection during working procedure
E5
E6
overcurrent
Outdoor high pressure switch acts
High pressure
malfunction
6
Outdoor low pressure switch acts or the
proctector on the top of compressor breaks
for protection
Low pressure
malfunction
16
C o m m u n i c a t i o n Communication abnormal for more than 4m
failure between continuously
indoor PCB and panel
E8
8
or wired controller
Communication Communication between indoor PCB and
failure between outdoor PCB open for more than 4m
E9
E7
9
indoor and outdoor
unit
Temperature cutoff System failure. System cooling or heating
13
protection
function abnormal
12
Customer Need-to-know
Customer Need-to-know
Please install the air conditioner according to the requirements specified in this manual
to ensure the air conditioner work well.
Be careful not to scratch the surface of the case during moving the air conditioner.
Please keep the installation manual for future reference when maintenance and changing
installation place.
After installation ,please use the air conditioner according to the specification in the
operation manual.
Using Directions
Avoid direct sunlight and airflow
Adjust suitable airflow direction
Keep the proper indoor temperature.
Too cool or hot is not good for your health.
Furthermore,it will result in excessive
consumption of electric power.
Effectively use timer.
Using TIMER mode, you can make the
room temperature reach a suitable
temperature when you wake up or go back
home.
Optimal
temper-
ature
ATTENTION: after finishing installation,confirm no refrigerant leakage.
13
Installation Procedure
Installation tools
The installation tools listed in the following sheet can be used as required.
1. Screw driver
2. Hacksaw
3. Drill with a diameter of 60mm
4. Inner hexagon spanner,shifting spanner
5. Spanner (14, 17, 19, 24, 27mm)
6. Pipe cutter
7. Pipe expander
8. Knife
9. Pincers
10. Leakage detector or soapy water
11. Band tape
12. Scraper
13. Refrigerant oil
Standard accessories
The following parts mentioned in this manual are the installation accessories we prepared.
Symbol
A
Parts Name
Adhesive tape
Pipe clamp
B
C
D
E
F
Connecting hose
Drainage hose
Non-hydroscopicheat insulating material
Gypsum powder
14
Installation Procedure
CAUTIONS:
To ensure proper installation,read"Cautions" carefully before working.After installation,start
the unit correctly and show customers how to operate and maintain the unit.
Meanings of Warning and Cautions:
Warning! Serious injury or even death might happen,if it is not observed.
Caution! Injury to people of damages to machine might happen, if it is not observed.
WARNING!
Installation shall be done by professional people, don't install unit by yourself. Incorrect installation
will cause water leakage, electric shock or fire.
Install unit as per the Manual. Incorrect installation will cause water leakage, electric shock or fire
accident.
Be sure to use specified accessaries and parts. Otherwise, water leakage, electric shock, fire accident
or unit falling down may happen.
Unit should be placed on a place strong enough to hold the unit. Or, unit will fall down causing injuries.
When install the unit, take in consideration of storms, typhoom, earthquake. Incorrect installation
may cause unit to fall down.
All electric work shall be done by experienced people as per eocal code, regulations and this Manual.
Use exclusive wire for the unit. Incorrect installation or undersized electric wire may cause electric
shock or fire accident.
All the wires and circuit shall be safe. Use exclusive wire firmly fixed. Be sure that external force
will not affect terminal bolck and electric wire. Poor contact and installation may cause fire accident.
Arrange wire correctly when connectin indoor and outdoor power supply. Fix terminal cover firmly
to avoid overheat, electric shock or even fire accident.
In case retrigerant leakage occurred during unit installation, keep a good ventilation in the room.
Poisonous gas will occur when meet with fire.
Check the unit upon installation. Be sure there is no leakage. Refrigerant will induce poisonous gas
when meet heat source as heater, oven, etc.
Cut power supply before touching terminal bolck.
CAUTION!
Unit shall be grounded. But grounding shall not be connected to gas pipe water pipe,
telephone line. Poor grounding will cause electric shock.
Be sure to install a leakage breaker to avoid electric shock.
Earthing
Arrange water drainage according to this Manual. Cover pipe with insulation materials in case dew may
occur. Unproper installation of water drainage will cause water leakage and wet your furniture.
To maintain good picture or reduce noise, keep at least 1 m from T.V. radio, when install indoor and outdoor
unit, connecting wire and power cable. (If the radio wave is relatively strong, 1 m is not enough to reduce
noise).
Don't install unit in following places:
(a) Oil mist or oil gas exists, such as kitchen, or, plastic parts may get aged, or water leakage.
(b) Where there is corrosive gas. Copper tube and welded part may be damaged due to corrosion,causing
leakage.
(c) Where there is strong radiation. This will affect unit's control system, causing malfunction of the unit.
(d) Where flamable gas, dirt, and volatile matter (thinner, gasoline) exist, These mattermight cause fire
accident.
Refer to paper pattern when installing unit.
Cautions for the installation personnel
Don't fail to show customers how to operate unit.
15
Installation Procedure
1
2
Before installation <Don't discard any accessories until completed>
Determine the way to carry unit to installation place.
Don't remove packing until unit reaches installation place.
If unpacking is unavoidable, protect unit properly.
Selection of installation place
(1) Installation place shall meet the following and agreed by customers:
Place where proper air flow can be ensured.
No block to air flow.
Water drainage is smooth.
Place strong enough to support unit .
Place where inclination is not evident on ceiling.
Enough space for maintenance.
Indoor and outdoor unit piping length is within limit. (Refer to Installation Manual for outdoor
unit.)
Indoor and outdoor unit, power cable, inter unit cable are at least 1 m away fromT.V. radio.
This is helpful to avoid picture disturbance and noise. (Even if 1 m is kept, noise can still appear
if radio wave is strong)
(2) Ceiling height
Indoor unit can be installed on ceiling of 2.5-3m in height. (Refer to Field setting and Installation
Manual of ornament panel.)
(3) Install suspending bolt. Check if the installation place is strong enough to hold weight. Take
necessary measures in case it is not safe. (Distance between holes are marked on paper pattern.
Refer to paper pattern for place which need be reinforced)
Installation space
Unit:mm
Air outlet
Air inlet
Air outlet
Air outlet
1500 Over
Air outlet
1500 Over
Air inlet
1500 Over
1500 Over
Model
H
Model
H
HBU-36HH03 HBU-42CH03
HBU-42CI03 HBU-42HI03
HBU-48CH03
HBU-28CH03 HBU-28HH03
HBU-48HJ03 HBU-48CK03
260
310
290
16
Installation Procedure
3
Preparation for the installation
(1) Position of ceiling opening between unit and suspending bolt.
Unit:mm
(Ceiling opening)
690
890
(Distance between
suspending bolts)
Refrigerant pipe
drain pipe
Suspending bolts
*
680
(Distance between
suspending bolts)
840(Indoor unit)
HBU-28CH03
HBU-28HH03
890(Ceiling opening)
*
950(Ornament panel)
HBU-36HH03
HBU-42CH03
HBU-42CI03
HBU-42HI03
HBU-48CH03
A
Note:
Dimension of ceiling opening marked with can be
*
aslarge as 910mm, but the matching part of ceiling
with ornament panel shall be over 20mm.
Suspending bracket
Ceiling
20 Over
A
HBU-48HJ03
HBU-48CK03
Ceiling
Suspending bracket
Distance between
suspending bolts 790mm
25mm
Ornament panel
840mm(Indoor unit)
890mm(Ceiling opening)
950mm(Ornament panel)
17
Installation Procedure
(2) Cut an opening in ceiling for installation if necessary. (when ceiling already exists.)
Refer to paper pattern for dimension of ceiling hole.
Connect all pipings (refrigerant, water drainage), wirings (inter unit cable) to indoor unit, before installation.
Cut a hole in ceiling, may be a frame should be used to ensure a smooth surface and to prevent vibration.
Contact your real estate dealer
<Installation example>
Anchor bolt
(3) Install a suspending bolt.(Use a M10 bolt)
To support the unit weight, anchor bolt shall be used
in the case of already exists ceiling. For new ceiling,
use built-in type bolt or parts prepared in the field.
Before going on installing adjust space between ceiling.
Roof
Long nut
Suspending bolt
Ceiling
Note: All the above mentioned parts shall be
prepared in field.
4
Installation of indoor unit
In the case of new ceiling
(1) Install unit temporarily
Put suspending bracket on the suspending bolt. Be sure to use nut and washer at both ends of the bracket.
(2) As for the dimensions of ceiling hole, see paper pattern. Ask your real estate dealer for details.
Center of the hole is marked on the paper pattern.
Center of the unit is marked on the card in the unit and on the paper pattern.
5
6
Mount paper pattern
onto unit using 3 screws . Fix the corner of the drain pan at piping outlet.
< After installation on the ceiling >
(3) Adjust unit to its right position. (Refer to preparation for the installation-(1))
(4) Check unit's horizontal level.
Watert pump and flating switch is installed inside indoor unit, check four corners of the unit for its level
using horizontal compartor or PVC tube with water. (If unit is tilting against the direction of water
drainage, problem may occur on floating switch, causing water leakage.)
(5) Remove the washer mounlting , and tighten the nut above.
2
(6) Remove the paper pattern.
Nut (Prepare in field)
In the case of ceiling already exists
Washer (Prepared in field)
(1) Install unit temporarily
Put suspending bracket on the suspending
bolt. Be sure to use nut and washer at both ends
of the bracket. Fix the bracket firmly.
(2) Adjust the height and position of the unit.
(Refer to preparation for the installation (1) ).
(3) Proceed with (3) and (4) of "In the case of
new ceiling".
2
Suspending bolts
Fasten (double nuts)
Insert
Washer fixing pad
(prepared in feild)
Level
[ secure the washer firmly]
Polythene pipe
18
Installation Procedure
Screws at the piping outlet is fixed at the corner
of drain pan.
Center of ceiling hole Paper pattern
Paper pattern
5
6
6
Screw (accessory)
Screw (accessory)
[Fix the paper pattern]
5
Refrigerant piping
(As for outdoor piping, please refer to installation Manual of outdoor unit.)
Outdoor is precharged with refrigerant.
Be sure to see the Fig.1, when connecting and removing piping from unit.
For the size of the flare nut, please refer to Table 1.
Apply refrigerant oil at both inside and outside of flare nut. Tighten it band tight 3-4 turns then tighten it.
Use torque specified in Table 1. (Too much force may damage flare nut, causing gas leakage).
Check piping joints for gas leakage. Insulate piping as shown in Fig. below.
7
Cover joint of gas piping and insulator with seal.
Apple refrigerant oil
Medium size seal pad 11 (accessory)
(Cover the piping joint with seal pad.)
Clamp
Torque spanner
8
7
Insulator (accessory)
(For liquid pipe)
spanner
Insulator (accessory)
(For gas pipe)
Gas pipe
Piping joing
Flare nut
Liquid pipe
Table 1
Pipe size
Tighten torque
A(mm)
8.3~8.7
Flare shape
.
1420~1720N cm
6.35mm
9.52mm
.
(144~176kgf cm)
.
2
R0.4 ~ 0.8
3270~3990N cm
12.0~12.4
18.6~19.0
22.9~23.3
.
(333~407kgf cm)
45
.
6180~7540N cm
15.88mm
19.05mm
.
(630~770kgf cm)
.
9720~11860N cm
.
(990~1210kgf cm)
19
Installation Procedure
6
Installation of water drainage pipe
(1) Install water drainage pipe
Pipe dia, shall be equal or larger than that of unit piping.(pipe of polyethylent; size: 25mm; O.D:32mm)
Drain pipe should be short, with a downward slope at least 1/100 to prevent air bag from happening.
If downward slope can't be made, take other measures to lift it up.
Keep a distance of 1-1.5m between suspending brackets, to make water hose straight.
1-1.5m
Slope over 1/100
Use the self-provided stiff pipe and clamp 1 with unit. Insert water pipe into water plug until it reaches
the white tape. Tighten the clip until head of the screw is less than 4mm from hose.
Wind the drain hose to the clip using seal pad 9 .
Insulate drain hose in the room.
Large size seal pad
(accessory)
9
1
Clamp
Clamp
(accessory)
Tape (White)
Self-provided stiff pipe
4mm below
<Cautions for the drain water lifting pipe>
Installation height shall be less than 280mm.
There should be a right angle with unit, 300mm from unit.
Suspending bracket
300mm below
1~1.5m
Self-provided stiff pipe
(accessory)
Drain hose
(accessory)
drain water lifting pipe
Clamp
(accessory)
(Note)
The slope of water drain hose (1) shall be within 75mm, don't apply too much force on it.
If several water hoses join together, do as per following proceedures.
Connect water hoses with a T joint.
Specifieations of the water hoses shall meet the requirements for the unit running.
20
Installation Procedure
(2) Check if water drainage is smooth after installation.
Charge, through air outlet or inspecting hole, 1200ccd water to see water drainage.
(Just take HBU-28HH03 for example. For HBU-42CH03, HBU-42HI03, HBU-48CH03 there is no
inspecting hole).
After wiring
Method of water charging
Check water drainage in cooling operation.
Self-provided stiff pipe
10
See also
test run.
Water drainage port for
maintenance
Inspecting hole
When wiring is not complete
(Drain water from
this hole)
Remove cover of control box, short connect
"CHECK" terminal of the indoor unit, which
is on the uper part of indoor unit PCB.
Connect 1PH power to terminal 1 and 2 on
terminal block.
Charge water from
100mm
inspecting hole
Note: In this operation, fan will be running.
Upon confirmation of a smooth water
drainage, be sure to cut off power supply and
remove short connection of "CHECK"
terminal.
Watering can of plastic
pipe should be about
100 mm long
Charge water from
air outlet
Wiring diagram
Y/G
Y/G
Y/G
Outdoor unit terminal block
Y/G
Outdoor unit terminal block
W
1
B
2
R
3
BR GR
W
L
B
N
Y/G
W
1
B
2
R
3
W
L
B
N
Y/G
Y/G
4
5
Power supply
1PH,220-230V~,50Hz
1
2
3
4
5
Power supply
1PH,220-230V~,50Hz
1
2
3
Y/G
W
B
R
W
B
R
Y/G
Y/G
Indoor unit terminal block
HBU-28CH03
Indoor unit terminal block
HBU-28HH03
Outdoor unit terminal block
Y/G
Y/G
Indoor unit terminal block
R
S
T
N
1
2
3
1
3
2
Power supply
3N~,380-400V,50Hz
Y/G
Power supply
3N~,380-400V,50Hz
HBU-42CI03
HBU-36HH03
HBU-42CH03
HBU-42HI03
HBU-48CH03
HBU-48CK03
R S T N 1 2 3
Outdoor unit terminal block
HBU-48HJ03
Y/G
1
W
2
3
Y/G
B R Y/G
Indoor unit terminal block
NOTE: L,N and 1,2 are equal on the terminal block.
21
Installation Procedure
7
Wiring
All supplied parts. materials and wiring operation must in appliance with local code and regulations.Use
copper wire only.
When make wiring, please refer to wiring diagram also.All wiring work must be done by qualified
electricians.
A circuit breaker must be installed, which can cut power supply to all system.
Connecting of unit (Take HBU-28HH03 For example).
Remove cover of switch box , drag wires into rubber tube A, then, after proper wiring with other wires,
tighten clamp A. Connect wires of correct pole to the terminal block inside.
Wind seal 12 around wires. (Be sure to do that, or, dew may occur).
Upon connecting, replace control box cover .
Moreover,connect the black terminal of indoor unit with the black terminal of outdoor unit properly using
the connecting wire which has both white terminals in the accesory bag,and connect the blue terminal
of indoor unit with the white terminal of out terminal as the same(For heat pump model).For cooling
only unit,just connect the black terminalof indoor unit with the black terminal
of outdoor unit properly.
<<WARNING>>
Connect wires of the Don't connect wires of Don't connect wires
Obscrve the following when connecting power supply
terminal block:
of the different
specifications.
same specifications
at two sides.
the same specifications
at one side.
Don't connect wires of different specifications to
the same terminal block.
(Loose wire may cause overheating of circuit)
Connect wires of same specifications as shown in
right Fig.
8
Wiring Example
Pull the two handles at the same
time, slowly draw them out.
As for outdoor unit circuit, please see Installation Manual of outdoor unit.
Note: All electric wires have their own poles, poles must match that
on terminal block.
9
Installation of ornament panel
Cautions for the installation
Be sure to show customers Operation Manual and guide them how
to operate unit correctly. Before installation. read also the Installation
Manual of indoor unit.
Fig.1
With this ornament , 2 or 3 air flow direction is not available.
Suitable height is 3 m.
1. Prepare ornament panel Handling of ornament panel
Ornament panel shall not be placed face down or against wall, neither on
an uneven object.
Don' t bend carelessly the swing flap, or, problem may occur.
Remove the air
inlet grill
Remove air inlet grill from ornament panel *
Fig.2
1
Pull the two handles at the same time,slowly draw them out.(Refer to Fig.1)
2
Lift it up for about 45 degree and remove it from ornament. Tear off adhesive
tape fixing air filter on the back of the air inlet grill. (Refer to Fig. 2)
22
Installation Procedure
2. Mounting on high ceiling
Side of ornament panel
Side of indoor unit
Swing motor
3. Install ornament panel on indoor unit.
For indoor unit installation, please refer to Installation Manual.
Check whether indoor unit is horizontal with leveler or polythene pipe filled with water , and check that the dimension
of the ceiling opening is correct. Take off the lever gauge before install the ornament panel.
Fasten the screws to make the height difference between the two sides of
indoor unit less than 5mm.
First fix it with screws temporally.
Where the swing motor locates in the figure of panle just is the location
of liquide pipe.
Connect the wires of synchro-motor.
Connect the wire of signal.
Fasten the two temporally fixing screws and other two, and tighten the
four screws.
Electric control box
If no response of remote controller,check whether the wiring is correct,
restart remote controller 10 seconds after shut off power supply.
Tighten screws to redrce the thickness of seals between ornament
and indoor unit to 5-8mm.
Seal
If connecting is not made, error code (A7) appears
on remote controller. So, make proper connecting.
Indoor unit
Ceiling material
_
5
8mm
Ornament panel
If indoor unit is at horizontal level and water drainage is
smooth, then, indoor unit height can be adjusted throrgh
holes at corners of ornament panel.
If screws are not tighten tight, problems in Fig.3 might
occur.
Caution
Tighten screws properly.
If there are still space after tightening of screws,
please readjust the height of indoor unit.
Gas leakage.
Gas leakage
from roof.
Leave no space.
Mist exists and drop down.
Contamination
23
Installation Procedure
4. Installation of inlet grill .
Installation of inlet grill.
Install in reversed order of "Prepare ornament pandl".
Inlet grill can be adjusted into four directions by turning inlet grill. Inlet grill position can be adjusted as per customers
request.
When installing inlet grill, take care not to twist wiring of swing flap motor.
Pay special care to the following and check after installation
Unproper installation may cause
Item to the checked
Is indoor unit firmly installed?
Check
Unit might fall down, make vibration or noise.
This may lead to gas shortage.
Is gas leakage check performed?
Is unit properly insulated?
Dew or water drop may occur.
Dew or water drop may occur.
Is water drainage smooth?
Is power voltage meet that stipulated on the nameplate?
Is wiring and piping correctly arranged?
Is unit safely grounded?
Problem may occur or parts got burned.
Problem may occur or parts got burned.
There might be a danger of electric shock.
Problem may occur or parts got burned.
Is wire size correct?
Are there any obstacles on air inlet and outlet grill of
indoor and outdoor unit?
This may cause poor cooling.
It is hard to control refrigerant charging
amount.
Is record made for piping length and refrigerant
charging amount?
24
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