FILE NO. A10-031
SERVICE MANUAL
SPLIT TYPE
INDOOR UNIT <DIGITAL INVERTER>
Compact 4-way CassetteType
RAV-SM404MUT-E RAV-SM404MUT-TR
RAV-SM454MUT-E RAV-SM454MUT-TR
RAV-SM564MUT-E RAV-SM564MUT-TR
Concealed DuctType
RAV-SM564BT-E
RAV-SM804BT-E
RAV-SM1104BT-E
RAV-SM1404BT-E
RAV-SM564BT-TR
RAV-SM804BT-TR
RAV-SM1104BT-TR
RAV-SM1404BT-TR
CeilingType
RAV-SM564CT-E
RAV-SM804CT-E
RAV-SM1104CT-E
RAV-SM1404CT-E
RAV-SM564CT-TR
RAV-SM804CT-TR
RAV-SM1104CT-TR
RAV-SM1404CT-TR
R410A
PRINTED IN JAPAN, Apr., 2011 ToMo
6. TROUBLESHOOTING .............................................................................. 42
6-1. Summary ofTroubleshooting........................................................................... 42
6-2. Check Code List (Indoor) ................................................................................. 47
6-3. Diagnostic Procedure for Each Check Code (Indoor Unit)............................ 52
7. REPLACEMENT OF SERVICE P.C. BOARD ........................................... 64
7-1. Indoort Unit ....................................................................................................... 64
8. SETUP AT LOCAL SITE AND OTHERS .................................................. 68
8-1. Indoor Unit......................................................................................................... 68
8-2. Setup at Local Site / Others ............................................................................. 78
8-3. How to Set up Central Control Address Number ........................................... 80
9. ADDRESS SETUP.................................................................................... 82
9-1. Address Setup .................................................................................................. 82
9-2. Address Setup & Group Control...................................................................... 83
9-3. Address Setup (Manual Setting from Remote Controller)............................. 86
9-4. Confirmation of Indoor Unit No. Position ....................................................... 87
10. DETACHMENTS ....................................................................................... 88
10-1. Compact 4-Way CassetteType ........................................................................ 88
10-2. Concealed DuctType ........................................................................................ 97
10-3. CeilingType ..................................................................................................... 100
11. EXPLODED VIEWS AND PARTS LIST .................................................. 104
11-1. Compact 4-way CassetteType ....................................................................... 104
11-2. Concealed DuctType ...................................................................................... 108
11-3. CeilingType ..................................................................................................... 115
– 3 –
Original instruction
Please read carefully through these instructions that contain important information which complies with the
“Machinery” Directive (Directive 2006/42/EC), and ensure that you understand them.
Generic Denomination: Air Conditioner
Definition of Qualified Installer or Qualified Service Person
The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified
service person.
When any of these jobs is to be done, ask a qualified installer or qualified service person to do them for you.
A qualified installer or qualified service person is an agent who has the qualifications and knowledge
described in the table below.
Agent
Qualifications and knowledge which the agent must have
Qualified
installer (∗1)
• The qualified installer is a person who installs, maintains, relocates and removes the air
conditioners made by Toshiba Carrier Corporation.
He or she has been trained to install, maintain, relocate and remove the air conditioners made by
Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such operations by
an individual or individuals who have been trained and is thus thoroughly acquainted with the
knowledge related to these operations.
• The qualified installer who is allowed to do the electrical work involved in installation, relocation
and removal has the qualifications pertaining to this electrical work as stipulated by the local laws
and regulations, and he or she is a person who has been trained in matters relating to electrical
work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has
been instructed in such matters by an individual or individuals who have been trained and is thus
thoroughly acquainted with the knowledge related to this work.
• The qualified installer who is allowed to do the refrigerant handling and piping work involved in
installation, relocation and removal has the qualifications pertaining to this refrigerant handling
and piping work as stipulated by the local laws and regulations, and he or she is a person who
has been trained in matters relating to refrigerant handling and piping work on the air conditioners
made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such
matters by an individual or individuals who have been trained and is thus thoroughly acquainted
with the knowledge related to this work.
• The qualified installer who is allowed to work at heights has been trained in matters relating to
working at heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively,
he or she has been instructed in such matters by an individual or individuals who have been
trained and is thus thoroughly acquainted with the knowledge related to this work.
Qualified service • The qualified service person is a person who installs, repairs, maintains, relocates and removes
the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install,
repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such operations by an individual or individuals who
have been trained and is thus thoroughly acquainted with the knowledge related to these operations.
person (∗1)
• The qualified service person who is allowed to do the electrical work involved in installation,
repair, relocation and removal has the qualifications pertaining to this electrical work as stipulated
by the local laws and regulations, and he or she is a person who has been trained in matters
relating to electrical work on the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such matters by an individual or individuals who
have been trained and is thus thoroughly acquainted with the knowledge related to this work.
• The qualified service person who is allowed to do the refrigerant handling and piping work
involved in installation, repair, relocation and removal has the qualifications pertaining to this
refrigerant handling and piping work as stipulated by the local laws and regulations, and he or
she is a person who has been trained in matters relating to refrigerant handling and piping
work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she
has been instructed in such matters by an individual or individuals who have been trained
and is thus thoroughly acquainted with the knowledge related to this work.
• The qualified service person who is allowed to work at heights has been trained in matters
relating to working at heights with the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such matters by an individual or individuals who
have been trained and is thus thoroughly acquainted with the knowledge related to this work.
– 4 –
Definition of Protective Gear
When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective
gloves and ‘safety’ work clothing.
In addition to such normal protective gear, wear the protective gear described below when undertaking the
special work detailed in the table below.
Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns,
electric shocks and other injuries.
Work undertaken
All types of work
Protective gear worn
Protective gloves
“Safety” working clothing
Gloves to provide protection for electricians and from heat
Insulating shoes
Electrical-related work
Clothing to provide protection from electric shock
Work done at heights (50 cm or more)
Transportation of heavy objects
Repair of outdoor unit
Helmets for use in industry
Shoes with additional protective toe cap
Gloves to provide protection for electricians and from heat
The important contents concerned to the safety are described on the product itself and on this Service Manual.
Please read this Service Manual after understanding the described items thoroughly in the following contents
(Indications/Illustrated marks), and keep them.
[Explanation of indications]
Indication
Explanation
Indicates contents assumed that an imminent danger causing a death or serious injury of
the repair engineers and the third parties when an incorrect work has been executed.
DANGER
Indicates possibilities assumed that a danger causing a death or serious injury of the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.
WARNING
CAUTION
Indicates contents assumed that an injury or property damage (∗) may be caused on the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.
∗ Property damage : Enlarged damage concerned to property, furniture, and domestic animal/pet
[Explanation of illustrated marks]
Mark
Explanation
Indicates prohibited items (Forbidden items to do)
The sentences near an illustrated mark describe the concrete prohibited contents.
Indicates mandatory items (Compulsory items to do)
The sentences near an illustrated mark describe the concrete mandatory contents.
Indicates cautions (Including danger/warning)
The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.
– 5 –
Warning Indications on the Air Conditioner Unit
[Confirmation of warning label on the main unit]
Confirm that labels are indicated on the specified positions
If removing the label during parts replace, stick it as the original.
Warning indication
Description
WARNING
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote electric power supplies
before servicing.
ELECTRICAL SHOCK HAZARD
Disconnect all remote electric
power supplies before servicing.
WARNING
WARNING
Moving parts.
Do not operate unit with grille removed.
Stop the unit before the servicing.
Moving parts.
Do not operate unit with grille removed.
Stop the unit before the servicing.
CAUTION
CAUTION
High temperature parts.
You might get burned when removing this panel.
High temperature parts.
You might get burned when removing
this panel.
CAUTION
CAUTION
Do not touch the aluminum fins of the unit.
Doing so may result in injury.
Do not touch the aluminum fins of the unit.
Doing so may result in injury.
CAUTION
CAUTION
BURST HAZARD
Open the service valves before the operation,
otherwise there might be the burst.
BURST HAZARD
Open the service valves before the
operation, otherwise there might be the
burst.
– 6 –
Precaution for Safety
The manufacturer shall not assume any liability for the damage caused by not observing the description of this
manual.
WARNING
Before starting to repair the air conditioner, read carefully through the Service Manual, and repair
the air conditioner by following its instructions.
Only qualified service person (∗1) is allowed to repair the air conditioner.
Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury,
water leaks and/or other problems.
Only a qualified installer (∗1) or qualified service person (∗1) is allowed to carry out the electrical
work of the air conditioner.
Under no circumstances must this work be done by an unqualified individual since failure to carry
out the work properly may result in electric shocks and/or electrical leaks.
Wear protective gloves and safety work clothing during installation, servicing and removal.
When connecting the electrical wires, repairing the electrical parts or undertaking other electrical
jobs, wear gloves to provide protection for electricians and from heat, insulating shoes and
clothing to provide protection from electric shocks.
Failure to wear this protective gear may result in electric shocks.
Use wiring that meets the specifications in the Installation Manual and the stipulations in the local
regulations and laws. Use of wiring which does not meet the specifications may give rise to
electric shocks, electrical leakage, smoking and/or a fire.
Only a qualified installer (∗1) or qualified service person (∗1) is allowed to undertake work at heights
using a stand of 50 cm or more or to remove the intake grille of the indoor unit to undertake work.
General
When working at heights, use a ladder which complies with the ISO 14122 standard, and follow
the procedure in the ladder’s instructions.
Also wear a helmet for use in industry as protective gear to undertake the work.
When working at heights, put a sign in place so that no-one will approach the work location,
before proceeding with the work.
Parts and other objects may fall from above, possibly injuring a person below.
Do not touch the aluminum fin of the outdoor unit.
You may injure yourself if you do so. If the fin must be touched for some reason, first put on
protective gloves and safety work clothing, and then proceed.
Do not climb onto or place objects on top of the outdoor unit.
You may fall or the objects may fall off of the outdoor unit and result in injury.
When transporting the air conditioner, wear shoes with additional protective toe caps.
When transporting the air conditioner, do not take hold of the bands around the packing carton.
You may injure yourself if the bands should break.
This air conditioner has passed the pressure test as specified in IEC 60335-2-40 Annex EE.
DENGER
Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit
breaker to the OFF position. Otherwise, electric shocks may result.
Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the
circuit breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result
in electric shocks through contact with the interior parts.
Only a qualified installer (∗1) or qualified service person (∗1) is allowed to remove the intake grille
of the indoor unit or service panel of the outdoor unit and do the work required.
Turn off
Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit
breaker.
breaker to the OFF position, and place a “Work in progress” sign on the circuit breaker.
When cleaning the filter or other parts of the indoor unit, set the circuit breaker to OFF without
fail, and place a “Work in progress” sign near the circuit breaker before proceeding with the work.
– 7 –
Even if the circuit breaker has been set to the OFF position before the service panel is removed
and the electrical parts are repaired, you will still risk receiving an electric shock.
For this reason, short-circuit the high-voltage capacitor terminals to discharge the voltage before
proceeding with the repair work.
For details on the short-circuiting procedure, refer to the Service Manual.
You may receive an electric shock if the voltage stored in the capacitors has not been sufficiently
discharged.
Execute
discharge
between
terminals.
Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair
or removal work is being carried out.
There is a danger of electric shocks if the circuit breaker is set to ON by mistake.
Prohibition
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the
electrical parts with the electrical parts box cover of one or more of the indoor units and the
service panel of the outdoor unit removed in order to find out exactly where the trouble lies, wear
insulated heat-resistant gloves, insulated boots and insulated work overalls, and take care to
avoid touching any live parts.
You may receive an electric shock if you fail to heed this warning. Only qualified service person
(∗1) is allowed to do this kind of work.
Stay on
protection
WARNING
Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of
the main unit, otherwise an electric shock is caused when a leak occurs.If the earth wire is not
correctly connected, contact an electric engineer for rework.
After completing the repair or relocation work, check that the ground wires are connected properly.
Check earth
wires.
Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.
Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for
telephone wires.
Do not modify the products.Do not also disassemble or modify the parts.
It may cause a fire, electric shock or injury.
Prohibition of
modification.
When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the
specifications given in the Service Manual (or use the parts contained on the parts list in the
Service Manual).
Use specified Use of any parts which do not satisfy the required specifications may give rise to electric shocks,
parts.
smoking and/or a fire.
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the
electrical parts with the electrical parts box cover of one or more of the indoor units and the
service panel of the outdoor unit removed in order to find out exactly where the trouble lies, place
"Keep out" signs around the work site before proceeding.
Do not bring
a child close to
Third-party individuals may enter the work site and receive electric shocks if this warning is not
the equipment. heeded.
Connect the cut-off lead wires with crimp contact, etc, put the closed end side upward and then
apply a water-cut method, otherwise a leak or production of fire is caused at the users’ side.
Insulating
measures
When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because
the oil that coats the pipes may otherwise burn.
When repairing the refrigerating cycle, take the following measures.
1) Be attentive to fire around the cycle.
When using a gas stove, etc, be sure to put out fire before work; otherwise the oil mixed with
refrigerant gas may catch fire.
2) Do not use a welder in the closed room.
No fire
When using it without ventilation, carbon monoxide poisoning may be caused.
3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch
the inflammables.
– 8 –
The refrigerant used by this air conditioner is the R410A.
Check the used refrigerant name and use tools and materials of the parts which match with it.
For the products which use R410A refrigerant, the refrigerant name is indicated at a position on
the outdoor unit where is easy to see.
To prevent miss-charging, the route of the service port is changed from one of the former R22.
Do not use any refrigerant different from the one specified for complement or replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may
result in a failure or explosion of the product or an injury to your body.
For an air conditioner which uses R410A, never use other refrigerant than R410A.
For an air conditioner which uses other refrigerant (R22, etc.), never use R410A.
If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating
cycle and an injury due to breakage may be caused.
Do not charge refrigerant additionally.
If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the
refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over
the specified standard amount is charged and an abnormal high pressure is applied to the inside
of the refrigerating cycle resulted in cause of breakage or injury.
Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute
vacuuming, and then newly recharge the specified amount of liquid refrigerant.
In this time, never charge the refrigerant over the specified amount.
Refrigerant
When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other
than R410A into the specified refrigerant.
If air or others is mixed with the refrigerant, abnormal high pressure generates in the refrigerating
cycle resulted in cause of injury due to breakage.
After installation work, check the refrigerant gas does not leak.
If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such
as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.
Never recover the refrigerant into the outdoor unit.
When the equipment is moved or repaired, be sure to recover the refrigerant with recovering device.
The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as
breakage or injury is caused.
After repair work, surely assemble the disassembled parts, and connect and lead the removed
wires as before.
Perform the work so that the cabinet or panel does not catch the inner wires.
If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is
caused at user’s side.
Assembly/
Cabling
After the work has finished, be sure to use an insulation tester set (500V Megger) to check the
resistance is 1MΩ or more between the charge section and the non-charge metal section
(Earth position).
Insulator
check
If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side.
When the refrigerant gas leaks during work, execute ventilation.
If the refrigerant gas touches to a fire, poisonous gas generates.
A case of leakage of the refrigerant and the closed room full with gas is dangerous because a
shortage of oxygen occurs. Be sure to execute ventilation.
Ventilation
When the refrigerant gas leaks, find up the leaked position and repair it surely.
If the leaked position cannot be found up and the repair work is interrupted, pump-down and
tighten the service valve, otherwise the refrigerant gas may leak into the room.
The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove
though the refrigerant gas itself is innocuous.
When installing equipment which includes a large amount of charged refrigerant such as a multi
air conditioner in a sub-room, it is necessary that the density does not the limit even if the
refrigerant leaks.
If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is caused.
Tighten the flare nut with a torque wrench in the specified manner.
Excessive tighten of the flare nut may cause a crack in the flare nut after a long period, which may
result in refrigerant leakage.
Compulsion
Nitrogen gas must be used for the airtight test.
The charge hose must be connected in such a way that it is not slack.
For the installation/moving/reinstallation work, follow to the Installation Manual.
If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric shock or
fire is caused.
– 9 –
Once the repair work has been completed, check for refrigerant leaks, and check the insulation
resistance and water drainage.
Then perform a trial run to check that the air conditioner is running properly.
After repair work has finished, check there is no trouble. If check is not executed, a fire, electric
shock or injury may be caused. For a check, turn off the power breaker.
Check after
repair
After repair work (installation of front panel and cabinet) has finished, execute a test run to check
there is no generation of smoke or abnormal sound.
If check is not executed, a fire or an electric shock is caused. Before test run, install the front
panel and cabinet.
Check the following matters before a test run after repairing piping.
• Connect the pipes surely and there is no leak of refrigerant.
• The valve is opened.
Running the compressor under condition that the valve closes causes an abnormal high
pressure resulted in damage of the parts of the compressor and etc. and moreover if there is
leak of refrigerant at connecting section of pipes, the air is suctioned and causes further
abnormal high pressure resulted in burst or injury.
Do not
operate the
unit with the
valve closed.
Only a qualified installer (∗1) or qualified service person (∗1) is allowed to relocate the air
conditioner. It is dangerous for the air conditioner to be relocated by an unqualified individual
since a fire, electric shocks, injury, water leakage, noise and/or vibration may result.
Check the following items after reinstallation.
1) The earth wire is correctly connected.
2) The power cord is not caught in the product.
3) There is no inclination or unsteadiness and the installation is stable.
If check is not executed, a fire, an electric shock or an injury is caused.
Check after
reinstallation
When carrying out the pump-down work shut down the compressor before disconnecting the
refrigerant pipe.
Disconnecting the refrigerant pipe with the service valve left open and the compressor still
operating will cause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to
an abnormally high level, and possibly resulting in reputing, injury, etc.
When the service panel of the outdoor unit is to be opened in order for the compressor or the
area around this part to be repaired immediately after the air conditioner has been shut down, set
the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the
service panel.
If you fail to heed this warning, you will run the risk of burning yourself because the compressor
pipes and other parts will be very hot to the touch. In addition, before proceeding with the repair
work, wear the kind of insulated heat-resistant gloves designed to protect electricians.
When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor,
Cooling check inverter or the areas around these parts to be repaired immediately after the air conditioner has
been shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutes
before opening the service panel.
If you fail to heed this warning, you will run the risk of burning yourself because the fan motor,
reactor, inverter heat sink and other parts will be very hot to the touch.
In addition, before proceeding with the repair work, wear the kind of insulated heat-resistant
gloves designed to protect electricians.
Only a qualified installer (∗1) or qualified service person (∗1) is allowed to install the air
conditioner. If the air conditioner is installed by an unqualified individual, a fire, electric shocks,
injury, water leakage, noise and/or vibration may result.
Before starting to install the air conditioner, read carefully through the Installation Manual, and
follow its instructions to install the air conditioner.
Do not install the air conditioner in a location that may be subject to a risk of expire to a
combustible gas.
If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.
Install the indoor unit at least 2.5 m above the floor level since otherwise the users may injure
themselves or receive electric shocks if they poke their fingers or other objects into the indoor unit
while the air conditioner is running.
Installation
Install a circuit breaker that meets the specifications in the installation manual and the stipulations
in the local regulations and laws.
Install the circuit breaker where it can be easily accessed by the qualified service person (∗1).
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.
– 10 –
Explanations given to user
• If you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuit
breaker to the OFF position, and contact a qualified service person to have the repairs done. Do not set the
circuit breaker to the ON position until the repairs are completed.
Relocation
• Only a qualified installer (∗1) or qualified service person (∗1) is allowed to relocate the air conditioner.
It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks,
injury, water leakage, noise and/or vibration may result.
• When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe.
Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will
cause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level,
and possibly resulting in reputing, injury, etc.
(∗1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”
Declaration of Conformity
Manufacturer:
Toshiba Carrier Corporation
336 Tadehara, Fuji-shi, Shizuoka-ken 416-8521 JAPAN
Authorized
Nick Ball
Representative/TCF holder:
Toshiba EMEA Engineering Director
Toshiba Carrier UK Ltd.
Porsham Close, Belliver Industrial Estate,
PLYMOUTH, Devon, PL6 7DB.
United Kingdom
Hereby declares that the machinery described below:
Generic Denomination:
Model/type:
Air Conditioner
RAV-SM404MUT-E
RAV-SM454MUT-E
RAV-SM564MUT-E
RAV-SM404MUT-TR
RAV-SM454MUT-TR
RAV-SM564MUT-TR
RAV-SM564BT-E
RAV-SM804BT-E
RAV-SM1104BT-E
RAV-SM1404BT-E
RAV-SM564BT-TR
RAV-SM804BT-TR
RAV-SM1104BT-TR
RAV-SM1404BT-TR
RAV-SM564CT-E
RAV-SM804CT-E
RAV-SM1104CT-E
RAV-SM1404CT-E
RAV-SM564CT-TR
RAV-SM804CT-TR
RAV-SM1104CT-TR
RAV-SM1404CT-TR
Commercial name:
Digital Inverter Series / Super Digital Inverter Series Air Conditioner
Complies with the provisions of the “Machinery” Directive (Directive 2006/42/EC) and the regulations
transposing into national law.
Complies with the provisions of the following harmonized standard:
EN 378-2: 2008 / A1: 2009
Note: This declaration becomes invalid if technical or operational modifications are introduced without the
manufacturer’s consent.
– 11 –
Specifications
Sound power level (dBA)
Weight (kg)
Model
Main unit (Ceiling panel)
Cooling
∗
Heating
∗
RAV-SM404MUT-E
RAV-SM454MUT-E
RAV-SM564MUT-E
RAV-SM404MUT-TR
RAV-SM454MUT-TR
RAV-SM564MUT-TR
RAV-SM564BT-E
16 (3)
16 (3)
16 (3)
16 (3)
16 (3)
16 (3)
30
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
RAV-SM804BT-E
39
∗
∗
RAV-SM1104BT-E
RAV-SM1404BT-E
RAV-SM564BT-TR
RAV-SM804BT-TR
RAV-SM1104BT-TR
RAV-SM1404BT-TR
RAV-SM564CT-E
54
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
54
30
39
54
54
21
RAV-SM804CT-E
25
∗
∗
RAV-SM1104CT-E
RAV-SM1404CT-E
RAV-SM564CT-TR
RAV-SM804CT-TR
RAV-SM1104CT-TR
RAV-SM1404CT-TR
33
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
33
21
25
33
33
: Under 70 dBA
∗
• Other specifications than abovementioned models are equal to current models (2 series).
– 12 –
New Refrigerant (R410A)
This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.
1. Safety Caution Concerned to New Refrigerant
The pressure of R410A is high 1.6 times of that of the former refrigerant (R22).
Accompanied with change of refrigerant, the refrigerating oil has been also changed.
Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the
refrigerating cycle of the air conditioner with new refrigerant during installation work or service work.
If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident.
Use the tools and materials exclusive to R410A to purpose a safe work.
2. Cautions on Installation/Service
1) Do not mix the other refrigerant or refrigerating oil.
For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of
the former refrigerant in order to prevent mixture of them.
2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which are
specified for R410A.
3) In the installation time, use clean pipe materials and work with great attention so that water and others
do not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc.
Use the clean pipes.
Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)
4) For the earth protection, use a vacuum pump for air purge.
5) R410A refrigerant is azeotropic mixture type refrigerant.
Therefore use liquid type to charge the refrigerant. (If using gas for charging, composition of the
refrigerant changes and then characteristics of the air conditioner change.)
3. Pipe Materials
For the refrigerant pipes, copper pipe and joints are mainly used.
It is necessary to select the most appropriate pipes to conform to the standard.
Use clean material in which impurities adhere inside of pipe or joint to a minimum.
1) Copper pipe
<Piping>
The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.
When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe
without seam” and one with bonded oil amount 40mg/10m or less.
Also do not use crushed, deformed, discolored (especially inside) pipes.
(Impurities cause clogging of expansion valves and capillary tubes.)
<Flare nut>
Use the flare nuts which are attached to the air conditioner unit.
2) Joint
The flare joint and socket joint are used for joints of the copper pipe.
The joints are rarely used for installation of the air conditioner.
However clear impurities when using them.
– 13 –
4. Tools
1. Required Tools for R410A
Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary,
etc. Accordingly, the tools to be used are classified into the following three types.
1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
R410A
air conditioner installation
Conventional air
conditioner installation
No.
Used tool
Usage
Existence of
new equipment
for R410A
Whether
conventional equipment
can be used
Whether conventional
equipment can be used
Flare tool
Pipe flaring
Ye s
Ye s
Ye s
Ye s
∗ (Note)
∗ (Note)
N o
Ye s
∗ (Note)
No
‚
Copper pipe gauge
for adjusting
projection margin
Flaring by
conventional flare tool
Torque wrench
Gauge manifold
Charge hose
Tightening of flare nut
ƒ
„
ꢀ
†
Evacuating, refrigerant
charge, run check, etc.
N o
No
Vacuum pump adapter Vacuum evacuating
Ye s
Ye s
N o
Ye s
Ye s
Electronic balance for
Refrigerant charge
refrigerant charging
Ye s
‡
Refrigerant cylinder
Leakage detector
Refrigerant charge
Gas leakage check
Ye s
Ye s
N o
N o
No
ˆ
‰
Ye s
(Note) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection
margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
General tools (Conventional tools can be used.)
In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary
as the general tools.
1) Vacuum pump. Use vacuum pump by
attaching vacuum pump adapter.
2) Torque wrench
3) Pipe cutter
7) Screwdriver (+, –)
8) Spanner or Monkey wrench
9) Hole core drill
4) Reamer
10) Hexagon wrench (Opposite side 4mm)
11) Tape measure
5) Pipe bender
6) Level vial
12) Metal saw
Also prepare the following equipments for other installation method and run check.
1) Clamp meter
2) Thermometer
3) Insulation resistance tester (Megger)
4) Electroscope
– 14 –
1. AIR DUCTING WORK
1-1. Static Pressure Characteristics
Concealed Duct type
RAV-SN564BT ∗, RAV-SN804BT ∗, RAV-SN1104BT ∗, RAV-SN1404BT ∗
Fig. 1 SM56 type (Round duct)
Fig. 3 SM80 type (Round duct)
Standard air volume 780m³/h
Standard air volume 1140m³/h
140
120
100
80
140
120
100
80
60
60
40
40
20
20
0
0
500
700
Air volume m³/h
780
900
800
1000
1140 1200
1300
Air volume m³/h
Fig. 2 SM56 type (Square duct)
Fig. 4 SM80 type (Square duct)
Standard air volume 780m³/h
Standard air volume 1140m³/h
140
120
140
120
100
80
108
100
80
60
40
20
0
60
40
20
0
500
700
780
900
800
1000
1140 1200
1300
Air volume m³/h
Air volume m³/h
– 15 –
Fig. 5 SM110 type (Round duct)
Fig. 7 SM140 type (Round duct)
Standard air volume 1620m³/h
Standard air volume 1980m³/h
140
120
100
80
140
120
100
80
60
60
40
40
20
0
20
0
1200
1620
1980
2000
1200
1800
2200
2400
Air volume m³/h
Air volume m³/h
Fig. 6 SM110 type (Square duct)
Fig. 8 SM140 type (Square duct)
Standard air volume 1620m³/h
Standard air volume 1980m³/h
140
120
100
80
140
120
100
80
60
60
40
40
20
0
20
0
1200
1620
1980
2000
1200
1800
2200
2400
Air volume m³/h
Air volume hm³/h
– 16 –
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)
2-1. Compact 4-way CassetteType
RAV-SM404MUT , RAV-SM454MUT , RAV-SM564MUT
∗
∗
∗
595 to 660 Ceiling open dimension
1000 or more
Obustacle
1000 or more
Space required for
installation and servicing
142
64
368.5
Knockout for flesh
air intake Ø100
268
27
Bottom face
of ceiling
220.5
145.5
93
700 Panel external dimension
Drain discharge port
145.5
134
63
595 to 660 Ceiling open dimension
525 Hanging bolt pitch
Hanging bolt
M10 or W3/8
local arrange
Bottom face
of ceiling
105 70
Ceiling panel
Ø162
Wiring
connection
port
Ø162
Refrigerant pipe
(Liquid) Ø6.4
320.5
575 Unit external dimension
Electric parts box
55
For branch duct knockout
square hole Ø150
70 105 93
139.5
For branch ductt
knockout square
hole Ø150
190.5
Refrigerant pipe
(Gas) Ø12.7
Bottom face of ceiling
– 17 –
2-2. Concealed DuctType
RAV-SM564BT , RAV-SM804BT , RAV-SM1104BT , RAV-SM1404BT
∗
∗
∗
∗
Refrigerant pipe connecting port
(Gas side ØF)
Drain pipe connecting port
for vinyl chloride pipe
(Inner dia. 32, VP. 25)
Hanging bolt
4-M10 screw
Discharge port flange
N-Ø200
(Arranged locally)
75
Main unit dimension 800
Hanging bolt pitch B
41
59
Hanging bolt pitch 700
Main unit dimension A
J = M x K
50
638
498
393
H
129
Knock-out hole Ø125
(Air take-in port)
44
49
196
Suction port
flange
(Separate sold)
Refrigerant pipe
connecting port
(Liquid side ØG)
6-Ø4 Tapping screw
undersized hole Ø160
Panel C.L
410
Ø26 Power supply,
remote controller
cable take-out port
C
Suction port
panel
(Separate sold)
Suction port canvas
(Separate sold)
Ceiling open size
470
Ceiling open size D
Panel external
dimension 500
Panel external dimension E
• Dimension
A
B
C
D
E
F
G
H
J
K
M
1
N
2
3
O
SM56 type
SM80 type
700
766
690
750
780 12.7
6.4
9.5
252
252
280
580
280
290
410
410
1000 1066
990 1050 1080 15.9
2
SM110 type
SM140 type
1350 1416 1340 1400 1430 15.9
9.5
252
930
310
3
4
410
Check port A
450
Plane view of main unit
(Pipe side)
NOTE 1 :
For maintenance of the equipment, be sure to install
a check port A at the position as shown below.
100
NOTE 2 :
Using the drain up kit sold separately, drain-up by 300 (mm)
from drain pipe draw-out port of the main unit is necessary.
The drain-up over 300mm or more is impossible.
Discharge side
– 18 –
2-3. CeilingType
RAV-SM564CT , RAV-SM804CT , RAV-SM1104CT , RAV-SM1404CT
∗
∗
∗
∗
Upper pipe draw-out port (Knockout hole)
210
167
105
Power supply cable take-in port (Knockout)
Pipe draw-out port (Knockout hole)
128
216
Remote controller cable take- in port
Drain port VP20
(Inner dia. Ø26, hose attached)
84 (Knockout hole)
110 76
Refrigerant pipe
(Liquid side ØC)
Left drain size
B (Hanging position)
Refrigerant pipe (Gas side ØD)
Drain pipe connecting port
97
75
146
Remote controller cable take- in port
Hanging bolt
Power supply cable take-in port (Knockout hole)
347
262
135
Ceiling surface
Unit
Remote controller cable take- in port
(Knockout hole)
84
A
Outside air take-in port
(Duct sold separately)(Knockout hole Ø92)
Drain left pipe draw-out port (Knockout hole)
Pipe hole on wall (Ø100 hole)
Model name
A
B
C
D
Wireless sensor
mounting section
SM56 type
910
855 Ø6.4 Ø12.7
SM80 type
1180 1125
1595 1540
Ø9.5 Ø15.9
SM110, 140 type
250 or more
250 or more
– 19 –
3. WIRING DIAGRAM
3-1. Indoor Unit
3-1-1. Compact 4-way CassetteType
RAV-SM404MUT , RAV-SM454MUT , RAV-SM564MUT
∗
∗
∗
– 20 –
3-1-2. Concealed DuctType
RAV-SM564BT , RAV-SM804BT , RAV-SM1104BT , RAV-SM1404BT
∗
∗
∗
∗
– 21 –
3-1-3. CeilingType
RAV-SM564CT , RAV-SM804CT , RAV-SM1104CT , RAV-SM1404CT
∗
∗
∗
∗
– 22 –
4. SPECIFICATIONS OF ELECTRICAL PARTS
4-1. Compact 4-way CassetteType
No.
1
Parts name
Fan motor (for indoor)
Type
Specifications
Output (Rated) 60 W, 220–240 V
10 kΩ at 25°C
SWF-230-60-1R
155 mm
2
Thermo. sensor (TA-sensor)
Heat exchanger sensor (TCJ-sensor)
Heat exchanger sensor (TC-sensor)
Float switch
3
Ø6 mm, 1200 mm
Ø6 mm, 1200 mm
FS-0218-102
ADP-1409
10 kΩ at 25°C
4
10 kΩ at 25°C
5
6
Drain pump motor
4-2. Concealed DuctType
No.
Parts name
Fan motor (SM804BT)
Type
Specifications
1
ICF-280-120-1C
Output (Rated) 120 W, 220–240 V
Fan motor
(SM564BT/SM1104BT/SM1404BT)
2
ICF-280-120-2C
Output (Rated) 120 W, 220–240 V
3
4
5
6
7
8
Thermo. sensor (TA-sensor)
Heat exchanger sensor (TCJ-sensor)
Heat exchanger sensor (TC-sensor)
Float switch
618 mm
Ø6 mm, 1200 mm
Ø6 mm, 1200 mm
FS-0218-102
ADP-1409
10 kΩ at 25°C
10 kΩ at 25°C
10 kΩ at 25°C
Drain pump motor
Reactor
CH-43-2Z-T
10 mH, 1 A
4-3. CeilingType
No.
Parts name
Fan motor (SM564CT)
Fan motor (SM804CT)
Type
Specifications
Output (Rated) 60 W, 220–240 V
Output (Rated) 60 W, 220–240 V
Output (Rated) 120 W, 220–240 V
10 kΩ at 25°C
1
2
3
4
5
6
7
8
SWF-280-60-1R
SWF-280-60-2R
SWF-280-120-2R
155 mm
Fan motor (SM1104CT/SM1404CT)
Thermo. sensor (TA-sensor)
Heat exchanger sensor (TCJ-sensor)
Heat exchanger sensor (TC-sensor)
Louver motor
Ø6 mm, 1200 mm
Ø6 mm, 1200 mm
MP24Z2N
10 kΩ at 25°C
10 kΩ at 25°C
DC 15V
Reactor
CH-43-2Z-T
10 mH, 1 A
– 23 –
5. CONTROL BLOCK DIAGRAM
5-1. Indoor Controller Block Diagram
5-1-1. In Case of Connection of Wired (Simple) Remote Controller
Wired (Simple) heder remote controller (Max. 2 units)
Central remote controller
Display LCD
Display LED
Function setup
Key switch
Display LCD
LCD driver
CPU
Function setup
Key switch
CN2
CN1
CPU
DC5V
DC5V
Power
circuit
Remote controller
communication circuit
Power circuit
∗3
Secondary
battery
Indoor unit
#1 (Heder)
#2
(Follower)
A
#3
A
B
(Follower)
B
A
B
Indoor control P.C. board (MCC-1402)
DC20V
Remote controller
communication circuit
EEPROM
DC5V
TA sensor
TC sensor
*
None for
DC12V
Duct type
Louver
motor
Same as left
Same as left
∗2
∗2
Driver
TCJ sensor
Float input
HA
CPU
H8/3039
Drain
pump
*
Option for
Ceiling type
External
output
CPU
TMP88CH47FG
(TMP88PH47FG)
Indoor
fan motor
Serial send/
receive circuit
Run
Alarm
1
2
3
1
2
3
Defrost
Thermo. ON
COOL
AC
Fan motor
synchronous
signal input circuit
HEAT
control circuit
Power circuit
FAN
DC280V
1
1
2
2
3
3
Outdoor unit
Up to 8 units are connectable. ∗1
∗1 However, if “1:1 model connection interface” is
connected when 2 wired (simple) remote controllers
are connected, Max. 7 units are connectable.
Outdoor unit
∗ “1:1 model” connection interface (Option)
P.C. board
(MCC-1440)
∗2 Connect “1:1 model connection interface” to only
1 unit and connect 1 “1:1 model connection
interface” to the header unit.
U3
Central remote
controller(Option)
TCC-LINK
communication circuit
U4
∗3 It is unavailable to connect the Central remote
controller to the simple wired remote controller.
Outdoor unit
– 24 –
5-1-2. In Case of Connection of Wireless Remote Controller
Indoor unit
#1 (Heder)
Wireless remote controller
Receiver P.C. board (MCC-1504)
Display LED
Receive circuit
Function setup SW
Buzzer
CPU
Temporary
operation SW
DC5V
Power
circuit
Remote controller
communication circuit
#2
(Follower)
A
#3
(Follower)
A
A
B
B
B
Indoor control P.C. board (MCC-1402)
DC20V
Remote controller
communication circuit
EEPROM
TA sensor
DC5V
*
None for
Duct type
DC12V
Louver
motor
TC sensor
Same as left
Same as left
∗2
∗2
Driver
CPU
H8/3039
TCJ sensor
Drain
pump
Float input
HA
*
Option for
Ceiling type
External
output
CPU
Indoor
TMP88CH47FG
(TVP88PH47FG)
fan motor
Serial send/
receive circuit
Run
Alarm
1
2
3
1
2
3
Defrost
Thermo. ON
COOL
AC
Fan motor
control circuit
synchronous
signal input circuit
HEAT
FAN
Power circuit
DC280V
1
1
2
2
3
3
Outdoor unit
Up to 8 units are connectable. ∗1
∗1 However, if “1:1 model connection interface” is
connected when 2 wireless remote controllers are
connected, Max. 7 units are connectable.
Outdoor unit
∗ “1:1 model” connection interface (Option)
P.C. board
(MCC-1440)
∗2 Connect “1:1 model connection interface” to only
1 unit and connect 1 “1:1 model connection
interface” to the header unit.
U3
U4
Central remote
controller (Option)
TCC-LINK
communication circuit
Outdoor unit
– 25 –
5-1-3. Connection of Both Wired (Simple) Remote Controller and Wireless Remote Controller
Indoor unit
#1 (Heder)
Wired (Simple) heder remote controller
Wireless remote controller
(Max. 2 units)
Central remote controller
Receiver P.C. board
(MCC-1504)
Display LED
Display
LCD
Function
setup
Display
LCD
LCD
driver
Receive
circuit
Function setup SW
Display
LED
Key
CPU
switch
Function
setup
CPU
CN2
CN1
Buzzer
CPU
Temporary
operation SW
Key
switch
DC5V
Remote controller
communication circuit
Power
circuit
DC5V
DC5V
∗3
Power
circuit
Remote controller
communication circuit
Power
circuit
Secondary
battery
A
B
A
B
#2
(Follower)
A
#3
(Follower)
A
A
B
B
B
Indoor control P.C. board (MCC-1402)
DC20V
Remote controller
communication circuit
EEPROM
TA sensor
DC5V
*
None for
Duct type
DC12V
Louver
motor
TC sensor
Same as left
Same as left
∗2
∗2
Driver
CPU
H8/3039
TCJ sensor
Float input
HA
Drain
pump
*
Option for
Ceiling type
External
output
CPU
Indoor
fan motor
TVP88CH47FG
Serial send/
receive circuit
(TMP88PH47FG)
Run
Alarm
1
2
3
1
2
3
Defrost
Thermo. ON
COOL
AC
Fan motor
synchronous
signal input circuit
HEAT
control circuit
Power circuit
FAN
DC280V
1
1
2
2
3
3
Outdoor unit
Up to 8 units are connectable. ∗1
Outdoor unit
∗ “1:1 model” connection interface (Option)
∗1 However, if “1:1 model connection interface” is
connected, Max. 7 units are connectable.
P.C. board
(MCC-1440)
∗2 Connect “1:1 model connection interface” to only
1 unit and connect 1 “1:1 model connection
interface” to the header unit.
U3
Central remote
controller (Option)
TCC-LINK
communication circuit
U4
∗3 It is unavailable to connect the Central remote
controller to the simple wired remote controller.
Outdoor unit
– 26 –
5-2. Control Specifications
No.
Item
Outline of specifications
Remarks
1
When power
supply is reset
1) Distinction of outdoor unit
When the power supply is reset, the outdoors are distin-
guished and the control is selected according to the
distinguished result.
2) Setting of indoor fan speed and existence of air direction
adjustment
Based on EEPROM data, select setting of the indoor fan
speed and the existence of air direction adjustment.
Fan speed (rpm)/
Air direction adjustment
2
Operation
mode selection
1) Based on the operation mode selecting command from the
remote controller, the operation mode is selected.
Remote controller
Control outline
command
STOP
FAN
Air conditioner stops.
Fan operation
COOL
DRY
Cooling operation
Dry operation
HEAT
AUTO
Heating operation
Ta: Room temp.
Ts: Setup temp.
To: Outside temp.
• COOL/HEAT operation mode is
automatically selected by Ta, Ts
and To for operation.
• The operation is performed as
shown in the following figure
according to Ta value at the first
time only. (In the range of Ts +
α –1 < Ta < Ts + α + 1, Cooling
thermo. OFF (Fan)/Setup air
volume operation continues.)
Cooling
operation
1.0
Ta˚C Ts +
–1.0
Cooling thermo. OFF (Fan)
• Setup air volume
α
Heating
operation
• α is corrected according to the outside temperature.
Outside temp.
No To
Correction value (α)
0K
–1K
0K
K = deg
To ≥ 24°C
24°C > To ≥ 18°C
To < 18°C
+1K
0K
To error
3
Room temp.
control
1) Adjustment range: Remote controller setup temperature ( °C )
COOL/DRY
18°C to 29°C
18°C to 30°C
HEAT
AUTO
Wired type
18°C to 29°C
16°C to 30°C
18°C to 29°C
17°C to 27°C
Wireless type
– 27 –
No.
Item
Outline of specifications
Remarks
Shift of suction
temperature in heating
operation
3
Room temp.
control
(Continued)
2) Using the CODE No. 06, the setup temperature in heating
operation can be corrected.
SET DATA
0
2
4
6
Setup temp.
correction
+0°C
+2°C
+4°C
+6°C
Setting at shipment
SET DATA
2
4
Automatic
capacity control
1) Based on the difference between Ta and Ts, the operation
frequency is instructed to the outdoor unit.
2) Cooling operation
(GA control)
Every 90 seconds, the room temperature difference
between temperature detected by Ta and Ts and the
varied room temperature value are calculated to obtain
the correction value of the frequency command and then
the present frequency command is corrected.
Ta (n) – Ts (n) : Room temp. difference
n
: Counts of detection
Ta (n-1) – Ts (n) : Varied room temp. value
n – 1 Counts of detection of 90 seconds before
3) Heating operation
:
Every 1 minute (60 sec.), the room temperature differ-
ence between temperature detected by Ta and Ts and the
varied room temperature value are calculated to obtain
the correction value of the frequency command and then
the present frequency command is corrected.
Ts (n) – Ta (n)
n
: Room temp. difference
: Counts of detection
Ta (n) – Ta (n – 1): Varied room temp. value
n – 1
: Counts of detection of 1 minute before
4) Dry operation
The frequency correction control is same as those of the
cooling operation.
However the maximum frequency is limited to approxi-
mately “S6”.
Note) When LOW is set up, the maximum frequency is
limited to approximately “SB”.
5
Automatic
cooling/heating
control
1) The judgment of selecting COOL/HEAT is carried out as
shown below. When +1.5°C exceeds against Tsh 10
minutes and after thermo. OFF, heating operation
(Thermo. OFF) exchanges to cooling operation.
Description in the parentheses shows an example of
cooling ON/OFF.
Tsc: Setup temp. in
cooling operation
Tsh: Setup temp. in
heating operation
+ temp. correction of
room temp. control
Ta ˚C
+1.5
Cooling
(Cooling ON)
Tsc or Tsh
–1.5
(Cooling OFF)
Heating
When –1.5°C lowers against Tsc 10 minutes and after thermo. OFF, cooling operation
(Thermo. OFF) exchanges to heating operation.
2) For the automatic capacity control after judgment of cooling/heating, see Item 4.
3) For temperature correction of room temp. control in automatic heating, see Item 3.
– 28 –
No.
Item
Outline of specifications
Remarks
6
Fan speed control
1) Operation with (HH), (H), (L) or [AUTO] mode is carried
out by the command from the remote controller.
HH > H+ > H > L+ >
L > UL
2) When the fan speed mode [AUTO] is selected, the fan
speed varies by the difference between Ta and Ts.
<COOL>
Ta ˚C
A
+3.0
HH
B
C
+2.5
+2.0
+1.5
+1.0
+0.5
Tsc
(HH)
H+ (HH)
H (HH)
L+ (H+)
L (H)
D
E
L (H)
F
–0.5
L (L+)
G
• Controlling operation in case when thermostat of remote
controller works is same as a case when thermostat of the
body works.
• If the fan speed has been changed once, it is not changed
for 3 minutes. However when the air volume is exchanged,
the fan speed changes.
• When cooling operation has started, select a downward
slope for the fan speed, that is, the high position.
• If the temperature is just on the difference boundary, the
fan speed does not change.
• Mode in the parentheses indicates one in automatic
cooling operation.
<HEAT>
Ta ˚C
(–0.5) –1.0
L (L+)
E
L+ (H)
(0) Tsh
H (H+)
(+0.5) +1.0
D
H+
(HH)
(+1.0) +2.0
C
HH
(HH)
(+1.5) +3.0
B
A
(+2.0) +4.0
Value in the parentheses indicates one when thermostat of
the remote controller works.
Value without parentheses indicates one when thermostat of
the body works.
• If the fan speed has been changed once, it is not changed
for 1 minute. However when the fan speed exchanged, the
fan speed changes.
• When heating operation has started, select an upward
slope for the fan speed, that is, the high position.
• If the temperature is just on the difference boundary, the
fan speed does not change.
• Mode in the parentheses indicates one in automatic
heating operation.
• In Tc ≥ 60°C, the fan speed increases by 1 step.
Tc: Indoor heat
exchanger sensor
temperature
– 29 –
No.
Item
Outline of specifications
Remarks
6
Fan speed control
(Continued)
(Ceiling type)
Selection of high
ceiling type
CODE No.
[5d]
Standard
Type 1
0001
Type 3
Type 6
0003
0000
0002
CODE No.: 5d
SW501 (1)/(2)
OFF/OFF
ON/OFF
OFF/ON
ON/ON
Tap
F1
HEAT COOL HEAT COOL HEAT COOL HEAT COOL
HH HH HH HH
F2
HH
HH
H+, H H+, H
L+, L L+, L
F3
H+
H+, H H+, H
F4
F5
F6
F7
F8
F9
FA
FB
FC
FD
H+
H
HH
H
HH
H+
L+
L
L+
L
H+
H
L+
L
H
L+
L
L+
L
L+
L
UL
UL
UL
UL
3) In heating operation, the mode changes to [UL] if thermostat
is turned off.
4) If Ta ≥ 25°C when heating operation has started and when
defrost operation has been cleared, the air conditioner
operates with (H) mode or higher mode for
1 minute after Tc entered in E zone of cool air discharge
preventive control (No. 7).
5) In automatic cooling/heating operation, the revolution
frequency of (HH) is set larger than that in the standard
cooling/heating operation.
However only when
the high ceiling
selection is set to
[Standard]
F5 → F4
Ta ˚C
47
However the revolution frequency
is restricted in the automatic
heating operation as shown in
the following figure.
42
F5
6) Self-clean operation
[Self-clean ] is
displayed.
When performing self-clean operation after stopping the
cooling operation, the mode becomes 210 rpm.
7
Cool air discharge
preventive control
1) In heating operation, the indoor fan is controlled based on
the detected temperature of Tc sensor or Tcj sensor. As
shown below, the upper limit of the revolution frequency is
restricted.
In D and E zones,
the priority is given
to air volume
selection setup of
remote controller.
However B zone is assumed as C zone for
6 minutes and after when the compressor activated.
In defrost operation, the control value of Tc is shifted by 6°C.
In A zone while
thermo is ON,
[PRE-HEAT
(Heating ready)] is
displayed.
Tc, Tcj
˚C
32
HH
H
30
L
E zone
28
UL
D zone
26
OFF
C zone
B zone
A zone
20
16
– 30 –
No.
Item
Outline of specifications
Remarks
8
Freeze preventive control 1) The cooling operation (including Dry operation) is
Tcj:
(Low temperature release)
performed as follows based on the detected
temperature of Tc sensor or Tcj sensor.
Indoor heat exchanger
sensor temperature
When [J] zone is detected for 6 minutes
(Following figure), the commanded frequency is
decreased from the real operation frequency.
After then the commanded frequency changes
every 30 seconds while operation is performed in
[J] zone.
In [K] zone, time counting is interrupted and the
operation is held.
When [ I ] zone is detected, the timer is cleared
and the operation returns to the normal operation.
If the commanded frequency becomes S0
because the operation continues in [J] zone, the
return temperature A is raised from 5°C to 12°C
until [ I ] zone is detected and the indoor fan
operates with [L] mode.
˚C
A
5
I
K
2
J
Tcn:
In heating operation, the freeze-preventive control
works if 4-way valve is not exchanged and the
following conditions are satisfied.
(However the temperature for J zone dashing control
is changed from 2°C to –5°C.)
Tc temperature when 5
minutes elapsed after
activation
Tc (n – 1):
Tc temperature at start
time
<Conditions>
• When
or
is established 5 minutes after
‚
activation.
Tcn ≤ Tc (n – 1) – 5
Tcn < Tc (n – 1) – 1 and Tcn ≤ Ta < 5°C
‚
– 31 –
No.
Item
Outline of specifications
Remarks
9
High-temp.
release control
1) The heating operation is performed as follows based on the
detected temperature of Tc sensor or Tcj sensor.
• When [M] zone is detected, the commanded frequency is
decreased from the real operation frequency. After then
the commanded frequency changes every 30 seconds
while operation is performed in [M] zone.
However this control is
ignored in case of the
follower unit of the twin.
• In [N] zone, the commanded frequency is held.
• When [L] zone is detected, the commanded frequency is
returned to the original value by approx. 6Hz every
60 seconds.
Setup at shipment
Tc, Tcj
˚C
Control temp. °C
M
N
A
A
B
56 (54)
52 (52)
B
L
NOTE:
Same status as that
when “thermostat-OFF”
(status that the air
When the operation has started or when Tc or Tcj < 30°C at start
of the operation or after operation start, temperature is con-
trolled between values in parentheses of A and B.
conditioner enters in the
room temp. monitor
mode when the
temperature reached the
setup temperature on
the remote controller)
10 Drain pump
control
1) In cooling operation (including Dry operation), the drain
pump is usually operated.
(The ceiling
type is optional)
2) If the float switch works while drain pump drives, the
compressor stops, the drain pump continues the operation,
and a check code is output.
Check code [P10]
3) If the float switch works while drain pump stops, the
compressor stops and the drain pump operates. If the float
switch keeps operating for approx. 4 minutes, a check code
is output.
11 After-heat
elimination
When heating operation stops, in some cases, the indoor fan
operates with (L) for approx. 30 seconds.
– 32 –
No.
Item
Outline of specifications
1) Louver position setup
Remarks
12 Louver control:
Compact 4-way
type only
• When the louver position is changed, the position moves
necessarily to downward discharge position once to return to
the set position.
•
The louver position can be set up in the following operation range.
In cooling/dry operation In heating/fan operation
• In group twin/triple operation, the louver positions can be set
up collectively or individually.
2) Swing setup
The swinging
louver moves
• [SWING] is displayed and the following display is repeated.
usually up to the
ceiling side from
the louver position
of the set time.
In all operations
(Repeats)
• In group twin operation, the louver positions can be set up
collectively or individually.
3) When the unit stopped or the warning was output, the louver is
automatically set to full closed position.
4) When PRE-HEAT
(Heating ready) is displayed
(Heating operation started or defrost operation is performed),
heating thermo is off or self-cleaning is performed, the louver is
automatically set to horizontal discharge position.
∗ The louver which air direction is individually set or the locked
louver closes fully when the unit stops and the louver is
automatically set to horizontal discharge position when
PRE-HEAT
(Heating ready) is displayed, heating thermo is
off or self-cleaning is performed.
– 33 –
No.
Item
Outline of specifications
1) Louver position setup
Remarks
13 (Continued)
For ceiling type only
• When the louver position is changed, the position
moves necessarily to downward discharge position
once to return to the set position.
• The louver position can be set up in the following
operation range.
In cooling/dry operation
In heating/fan operation
• In group operation, the louver positions can be set up
collectively or individually.
2) Swing setup
• The swinging position can be moved in the following
operation range.
All modes
• In group operation, the swinging positions can be set
up collectively or individually.
Alarm :
A check code is
displayed on the
remote controller, and
the indoor unit stops.
(Excluding [F08] and
[L31])
3) When the unit stops or when a warning is output, the
louver automatically moves downward.
4) While the heating operation is ready or self cleaning,
the louver automatically moves upward.
– 34 –
No.
Item
Outline of specifications
<In case of wired remote controller>
1) When pushing [CHK] button for 4 seconds or more, [TEST] is
displayed on the display screen and the mode enters in Test
run mode.
Remarks
13 Frequency
Command frequency is
approximately [S7]
fixed operation
(Test run)
2) Push [ON/OFF] button.
3) Using [MODE] button, set the mode to [COOL] or [HEAT].
• Do not use other mode than [COOL]/[HEAT] mode.
• During test run operation, the temperature cannot be ad-
justed.
• An error is detected as usual.
• A frequency fixed operation is performed.
4) After the test run, push [ON/OFF] button to stop the operation.
(Display in the display part is same as the procedure in Item 1.)
5) Push [CHK] button to clear the test run mode.
([TEST] display in the display part disappears and the status
returns to the normal stop status.)
<In case of wireless remote controller>
(Compact 4-way, Concealed Duct type)
1) Turn off power of the set.
Remove the nameplate of the receiver unit and then turn the
Dip switch to [Test operation / ON].
2) The test operation starts by [START/STOP] button.
• [START], [TIMER] and [READY] LEDs flash during test
operation
• Under condition of [Test operation / ON], the temperature
adjustment is invalid even if using the wireless remote
controller. Do not use it at other cases than a test operation
because it applies excessive force.
3) Carry out a test operation under anyone mode of HEAT,
COOL or FAN operation mode.
• The outdoor unit does not operate for approx. 3 minutes
after the power supply was turned on and after operation
stop.
4) After the test operation, stop the unit by the wireless remote
controller and then return Dip switch of the receiver unit to
the original position.
(In order to prevent sequential test operation, this receiving
unit is attached with 60-minutes timer release function.)
Receiver unit
Spacer
M4 × 25 screw
(2 pieces)
Nameplate
Notch
Small screw
– 35 –
No.
Item
Outline of specifications
Remarks
13 Frequency fixed
operation
(Ceiling type)
Procedure
Description
(Test run)
(Continued)
Turn on power of the air conditioner.
The operation is not accepted for 5 minutes when power has been turned on at first time after
installation, and 1 minute when power has been turned on at the next time and after. After the
specified time has passed, perform a test operation.
4
Push [Start/Stop] button and change the operation mode to [COOL] or [HEAT] with [Mode] button.
Then change the fan speed to [High] using [Fan] button.
2
3
Test cooling operation
Test heating operation
Set temperature to [18°C] using
[Temperature set] button.
Set temperature to [30°C] using
[Temperature set] button.
After checking the receiving sound
“Pi”, immediately push [Temperature set]
button to set to [19°C]
After checking the receiving sound
“Pi”, immediately push [Temperature set]
button to set to [29°C].
4
5
After checking the receiving sound “Pi”,
immediately push [Temperature set] button
to set to [18°C].
After checking the receiving sound “Pi”,
immediately push [Temperature set] button
to set to [30°C].
Then repeat the procedure
→
→
→
.
4 5 4 5
After approx. 10 seconds, all the display lamps on the sensor part of wireless remote controller,
[Operation] (Green), [Timer] (Green), and [Ready] (Yellow) flash and the air conditioner starts operation.
6
7
If the lamps do not flash, repeat the procedure 2 and after.
After the test operation, push [Start/Stop] button to stop the operation.
<Outline of test operation from the wireless remote controller>
Test cooling operation:
Start → 18°C → 19°C → 18°C → 19°C → 18°C → 19°C → 18°C → (Test operation) → Stop
Test heating operation:
Start → 30°C → 29°C → 30°C → 29°C → 30°C → 29°C → 30°C → (Test operation) → Stop
Be sure to set the
air speed to [High]
2
3, 4, 5, 6
2, 7
14 Filter sign display
(Except wireless
type)
1) The operation time of the indoor fan is calculated, the filter
reset signal is sent to the remote controller when the
specified time (2500H) has passed, and it is displayed on
LCD.
2) When the filter reset signal has been received from the
remote controller, time of the calculation timer is cleared.
[FILTER
] goes on.
∗ It is provided
on the sepa-
rately sold type
TCB-AX21E2.
In this case, the measurement time is reset if the specified
time has passed, and display on LCD disappears.
– 36 –
No.
Item
Outline of specifications
Remarks
15 Central control
mode selection
1) Setting at the central controller side enables to select
the contents which can be operated on the wired
remote controller.
2) Setup contents
• In case of TCC-LINK Central remote controller
(TCB-SC642TLE2)
[Individual]:
Operated by wired remote controller
([After-push precedence])
Display at wired remote
controller side (No display)
[Central 1]:
[
] goes on.
START / STOP operation by wired remote controller
is unavailable.
[Central 2]:
[
] goes on.
START / STOP, MODE change and TEMP. setting by
wired remote controller are unavailable.
[Central 3]:
[
[
] goes on.
] goes on.
MODE change and TEMP. setting by wired remote
controller are unavailable.
[Central 4]:
MODE change by wired remote controller is
unavailable.
• In case of the wireless remote controller, the con-
tents to be operated are same though the display
lamp does not change.
If an item prohibited by the central control mode is
operated from the remote controller, it is notified with
receiving sound Pi, Pi, Pi, Pi, Pi (5 times)
16 Energy-saving
control
1) Selecting [AUTO] mode enables an energy-saving to
be operated.
2) The setup temperature is shifted (corrected) in the
range not to lose the comfort ability according to input
values of various sensors.
3) Data (Input value room temp. Ta, Outside temp. To, Air
volume, Indoor heat exchanger sensor temp. Tc) for
20 minutes are taken the average to calculate correc-
tion value of the setup temperature.
4) The setup temperature is shifted every 20 minutes,
and the shifted range is as follows.
In cooling time: +1.5 to – 1.0K
In heating time: –1.5 to +1.0K.
17 Max. frequency 1) This control is operated by selecting [AUTO] operation mode.
cut control
2) COOL operation mode:
It is controlled according to the following
figure if To < 28°C.
3) HEAT operation mode:
It is controlled according to the following
figure if To > 15°C.
Max. frequency is
restricted to approximately
Ta ˚C
Ta ˚C
the rated heating frequency
Normal control
+4
Tsh
+3
–3
–4
Tsc
Normal control
Max. frequency is
restricted to approximately
the rated cooling frequency
– 37 –
No.
Item
Outline of specifications
Remarks
18 DC motor
1) When the fan operation has started, positioning of
the stator and the rotor are performed.
(Moves slightly with tap sound)
2) The motor operates according to the command from
the indoor controller.
Notes)
• When the fan rotates while the air conditioner stops
due to entering of outside air, etc, the air conditioner
may operate while the fan motor stops.
• When a fan lock is found, the air conditioner stops, and
an error is displayed.
Check code [P12]
19 Self-clean
operation
1) When cooling operation mode (AUTO COOL, COOL, DRY) stopped, the following
three self-clean operations are performed.
(Dry operation)
Compressor
ON period
Self-clean
operation period
FAN
Drain pump
Louver
0 to 10 min.
10 to 60 min.
60 min. to
None
1 hour
2 hours
Horizontal discharge
position
∗Concealed duct is none.
Fan (UL)
STOP
2) During operation of self-clean,
lights on the wired
And it is not also on the
wireless remote controller.
It is recognized as [STOP]
from the remote monitor
side.
remote controller screen. However the operation
lamp (Green LED) goes off.
3) To stop the self-clean operation, push twice the
[ON/OFF] button on the remote controller
continuously. (Stop the operation as compressor ON
time in the table above: 10 minutes or below.)
4) When the follower unit executes self-clean operation
in the group connection, the segment of
is
displayed on the wired remote controller screen via
master unit.
∗ If self-clean operation is not used, set invalidity
(does not use) of the self-clean operation by
changing [0001 (At shipment) of CODE No. (DN)
[D3] to [0000].
∗ To erase the
display during operation of
self-clean, change CODE No. [D4] from [0000:
Display (At shipment)] to [0001: Non-display].
SAVE
20 Save operation
1) Turn on
2) During operation of save operation,
wired remote controller.
3) During save operation, the current release control is
performed with the restriction ratio set in EEPROM
on the outdoor unit.
button on the remote controller.
Carry out setting
operation during stop of
the unit; otherwise the
unit stops operation.
For the setup operation,
refer to
“How to set contents of
save operation” in Sction
“8. SETUP AT LOCAL
SITE AND OTHERS”.
lights on the
SAVE
4) The restriction ratio can be set by keeping
button pushed for 4 seconds or more on the remote
controller.
5) When validating the save operation, the next opera-
tion starts with save operation valid because contents
are held even when operation stops, operation mode
changes or power supply is reset.
6) The restriction ratio can be set by changing the setup
data of CODE No. (DN) [C2] in the range of 50 to
100% (every 1%, Setting at shipment: 75%).
– 38 –
No.
Item
Outline of specifications
Remarks
21 8°C heating/Frost
protective operation
1) This functional is intended for the cold latitudes and
performs objective heating operation
(8°C heating operation).
In a group connection,
if there is even one
combination with other
unit, “This function is not
provided.” is displayed.
2) This function is valid only for combination with the
outdoor units.
3) Using the indoor CODE No. [D1] (1 bit), Valid/Invalid of
this function is set up at the customer’s side.
∗ The setup by CODE No. is Invalid [0]/Valid [1] and
Invalid [0] has been set at the shipment.
4) This operation is the heating operation which sets 8°C
as the setup temperature of the target.
5) This function starts operation by pushing temperature
The setup temperature
jumps from [18] to [8].
button
pushing
during heating operation; besides by
button for 4 seconds or more after
temperature reached the minimum set temperature.
6) To stop/release this operation, select and execute one
from the following operations.
Push
button:
Heating operation 18°C setting) continues.
Push [START/STOP] button:
Air conditioner stops.
‚
(Heating 18°C operation at the next start)
MODE
Push
:
ƒ
Other operation mode is selected and the operation
continues.
7) As the setup temperature is 8°C and the human heating is
not targeted, the cold air discharge preventive control
(Item 7) is made invalid to suppress the intermittent
operation.
8) The settings of the air direction and air volume are
changeable during this operation.
9) The indoor fan stops to protect the compressor for
2 minutes after start of heating operation
(Thermo-ON) by this function.
– 39 –
5-3. Indoor Print Circuit Board
5-3-1. Compact 4-way CassetteType / Concealed DuctType / CeilingType
<MCC-1402>
– 40 –
Indoor P.C. Board Optional Connector Specifications (MCC-1402)
Connector
No.
Pin
No.
Function
Specifications
DC12V (COM)
Remarks
Option output
CN60
1
2
3
4
Defrost output
ON during defrost operation of outdoor unit
ON during Real thermo-ON (Comp ON)
Thermo. ON output
Cooling output
ON when operation mode is in cooling system
(COOL, DRY, COOL in AUTO cooling/heating)
5
6
Heating output
Fan output
ON when operation mode is in heating system
(HEAT, HEAT in AUTO cooling/heating)
ON during indoor fan ON
(Air purifier is used/Interlock cable)
Outside error input
CN80
1
2
3
1
2
1
2
1
2
DC12V (COM)
DC12V (COM)
Outside error input
Check mode input
0V
(When continued for 1 minute)
Check code “L30” is output and forced operation stops.
CHK
Operation check
CN71
CN72
CN73
Used for operation check of indoor unit.
(Communication with outdoor unit or remote controller
is not performed, but the specified operation such as
indoor fan “H” or drain pump ON is output.)
DISP display mode
EXCT demand
Display mode input
0V
Display mode enables indoor unit and remote controller
to communicate. (When power is turned on)
Demand input
0V
Forced thermo-OFF operation in indoor unit
– 41 –
6. TROUBLESHOOTING
6-1. Summary ofTroubleshooting
<Wired remote controller type>
1. Before troubleshooting
1) Required tools/instruments
+
–
•
and
screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch
• Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
a) The following operations are normal.
1. Compressor does not operate.
• Is not 3-minutes delay (3 minutes after compressor OFF)?
• Is not the outdoor unit in standby status though the remote controller reached the setup
temperature?
• Does not timer operate during fan operation?
• Is not an overflow error detected on the indoor unit?
• Is not outside high-temperature operation controlled in heating operation?
2. Indoor fan does not rotate.
• Does not cool air discharge preventive control work in heating operation?
3. Outdoor fan does not rotate or air volume changes.
• Does not high-temperature release operation control work in heating operation?
• Does not outside low-temperature operation control work in cooling operation?
• Is not defrost operation performed?
4. ON/OFF operation cannot be performed from remote controller.
• Is not automatic address being set up?
(When the power is turned on at the first time or when indoor unit address setting is changed,
the operation cannot be performed for maximum approx. 5 minutes after power-ON.)
• Is not being carried out a test run by operation of the outdoor P.C. board?
b) Did you return the cabling to the initial positions?
c) Are connecting cables of indoor unit and remote controller correct?
2. Troubleshooting procedure
When a trouble occurred, check the parts along with the following procedure.
→
→
Trouble
Confirmation of check code display
Check defective parts.
NOTE :
For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer
noise is considered except the items to be checked. If there is any noise source, change the cables of the
remote controller to shield cables.
– 42 –
<Wireless remote controller type>
1. Before troubleshooting
1) Required tools/instruments
+
–
•
and
screwdrivers, spanners, radio cutting pliers, nippers, etc.
• Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
a) The following operations are normal.
1. Compressor does not operate.
• Is not 3-minutes delay (3 minutes after compressor OFF)?
• Is not the outdoor unit in standby status though the remote controller reached the setup
temperature?
• Does not timer operate during fan operation?
• Is not an overflow error detected on the indoor unit?
• Is not outside high-temperature operation controlled in heating operation?
2. Indoor fan does not rotate.
• Does not cool air discharge preventive control work in heating operation?
3. Outdoor fan does not rotate or air volume changes.
• Does not high-temperature release operation control work in heating operation?
• Does not outside low-temperature operation control work in cooling operation?
• Is not defrost operation performed?
4. ON/OFF operation cannot be performed from remote controller.
• Is not forced operation performed?
• Is not the control operation performed from outside/remote side?
• Is not automatic address being set up?
• Is not being carried out a test run by operation of the outdoor controller?
b) Did you return the cabling to the initial positions?
c) Are connecting cables between indoor unit and receiving unit correct?
2. Troubleshooting procedure
(When the power is turned on at the first time or when indoor unit address setting is changed, the operation
cannot be performed for maximum approx. 5 minutes after power-ON.)
When a trouble occurred, check the parts along with the following procedure.
Confirmation of lamp display
(When wireless remote controller is connected)
Check defective
position and parts.
→
→
Trouble
– 43 –
Outline of judgment
The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with
the following method.
Method to judge the erroneous position by display panel of the indoor unit
(lamp display of the wireless receiving part)
The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis
are displayed restricted to the following cases if a protective circuit works.
: Go off,
: Go on,
: Flash (0.5 sec.)
Lamp indication
Operation Timer Ready
Check code
Cause of trouble occurrence
—
Power supply OFF or miswiring between lamp indication unit and indoor unit
No indication at all
E01
E02
E03
E08
E09
E10
Receiving error ⎫
⎬ Receiving unit
⎫
⎪
⎬
⎪
⎭
Miswiring or wire connection error
⎭
Sending error
between receiving unit and indoor unit
Communication stop
Operation Timer
Ready
Duplicated indoor unit No.
⎫
Setup error
⎬
⎭
Duplicated master units of remote controller
Flash
Communication error between CPUs on indoor unit P.C. board
Wire connection error between indoor units, Indoor power OFF
(Communication stop between indoor header and follower)
E18
Operation Timer
Operation Timer
Ready
Miswiring between indoor unit and outdoor unit or connection erorr
(Communication stop between indoor and outdoor units)
E04
Flash
⎫
⎪
Ready
P10
P12
Overflow was detected.
⎬
⎪
⎭
Protective device of indoor unit worked.
Indoor DC fan error
Alternate flash
P03
P04
P05
P07
P15
P19
P20
P22
P26
P29
Outdoor unit discharge temp. error
Outdoor high pressure system error
⎫
⎬
⎭
Protective device of
outdoor unit worked.
∗1
Negative phase detection error
Heat sink overheat error
Gas leak detection error
⎫
⎪
⎬
⎪
⎭
Outdoor unit error
Operation Timer
Ready
4-way valve system error (Indoor or outdoor unit judged.)
Outdoor unit high pressure protection
Alternate flash
Outdoor unit: Outdoor unit error
Outdoor unit: Inverter Idc operation
Outdoor unit: Position detection error
⎫
⎪
⎬
⎪
⎭
Protective device of
outdoor unit worked.
∗1
Stopped because of error of other indoor unit in a group
(Check codes of E03/L03/L07/L08)
P31
∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.
– 44 –
Lamp indication
Operation Timer
Check code
F01
Cause of trouble occurrence
Ready
Heat exchanger sensor (TCJ) error
⎫
⎪
⎬
⎪
⎭
F02
Heat exchanger sensor (TC) error
Heat exchanger sensor (TA) error
Discharge temp. sensor (TD) error
Temp. sensor (TE) error
Indoor unit sensor error
Alternate flash
F10
⎫
⎪
⎪
⎪
⎪
⎪
⎪
⎬
⎪
⎪
⎪
⎪
⎪
⎪
⎭
F04
F06
Operation Timer
Alternate flash
Ready
F07
Temp. sensor (TL) error
F08
Temp. sensor (TO) error
Sensor error of outdoor unit ∗1
F12
Temp. sensor (TS) error
F13
Temp. sensor (TH) error
F15
Temp. Sensor miswiring (TE, TS)
Operation Timer
Ready
Ready
F29
F31
Indoor EEPROM error
Outdoor EEPROM error
Simultaneous flash
Operation Timer
Simultaneous flash
Operation Timer
Flash
H01
H02
H03
H04
H06
L03
Compressor break down
Compressor lock
⎫
⎪
⎪
⎬
⎪
⎪
⎭
Ready
Outdoor compressor system error ∗1
Current detection circuit error
Case thermostat worked.
Outdoor unit low pressure system error
Duplicated header indoor units
⎫
⎪
⎪
There is indoor unit of group connection → AUTO address
in individual indoor unit.
L07
L08
⎬
Operation Timer
Ready
⎪
⎪
⎭
∗ If group construction and
address are not normal
when power supply turned on,
automatically goes to address
setup mode.
Unsetting of group address
Simultaneous flash
Missed setting
(Unset indoor capacity)
L09
⎫
⎪
⎪
⎪
⎪
⎬
⎪
⎪
⎪
⎪
⎭
L10
L20
L29
L30
L31
Unset model type (Service board)
Duplicated indoor central addresses
Outdoor unit and other error
Outside interlock error
Operation Timer
Ready
Others
Simultaneous flash
Negative phase error
∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.
– 45 –
Others (Other than Check Code)
Lamp indication
Operation Timer Ready
Check code
Cause of trouble occurrence
—
During test run
Simultaneous flash
Operation Timer Ready
Disagreement cool/heat
(Automatic cool/heat setting to automatic cool/heat prohibited mode)
—
Alternate flash
– 46 –
– 47 –
Check Code List
Error mode detected by indoor unit
Operation of diagnostic function
Judgment and measures
Check
code
Status of
air conditioner
Cause of operation
Condition
1. Check cables of remote controller and communication adapters.
• Remote controller LCD display OFF (Disconnection)
• Central remote controller [97] check code
No communication from remote
controller (including wireless) and
communication adapter
Stop
Displayed when
E03
(Automatic reset) error is detected
1. Outdoor unit does not completely operate.
• Inter-unit wire check, correction of miswiring
• Check outdoor P.C. board. Correct wiring of P.C. board.
The serial signal is not output from
outdoor unit to indoor unit.
• Miswiring of inter-unit wire
Stop
Displayed when
E04
• Defective serial sending circuit on
outdoor P.C. board
(Automatic reset) error is detected
2. When outdoor unit normally operates
Check P.C. board (Indoor receiving / Outdoor sending).
• Defective serial receiving circuit on
indoor P.C. board
E08
L03
Duplicated indoor unit address
Duplicated indoor header unit
1. Check whether remote controller connection (Group/Individual)
was changed or not after power supply turned on
(Finish of group construction/Address check).
Displayed when
error is detected
* If group construction and address are not normal when the
power has been turned on, the mode automatically shifts to
address setup mode. (Resetting of address)
Stop
There is group wire in individual indoor
unit.
L07
L08
L09
Unset indoor group address
Unset indoor capacity
Displayed when 1. Set indoor capacity (DN=11)
error is detected
Stop
Stop
Displayed when 1. Check outside devices.
L30
P10
Abnormal input of outside interlock
error is detected
2. Check indoor P.C. board.
1. Trouble of drain pump
Float switch operation
Displayed when
error is detected
2. Clogging of drain pump
3. Check float switch.
Stop
• Float circuit, Disconnection,
Coming-off, Float switch contact error
4. Check indoor P.C. board.
1. Position detection error
Displayed when 2. Indoor fan driving part over-current protective circuit operation
P12
P19
Indoor DC fan error
Stop
Stop
error is detected
3. Indoor fan lock
4. Indoor P.C. board check
1. Check 4-way valve.
4-way valve system error
Displayed when 2. Check 2-way valve and check valve.
• After heating operation has started,
indoor heat exchangers temp. is
down.
(Automatic reset) error is detected
3. Check indoor heat exchanger (TC/TCJ).
4. Check indoor P.C. board.
Stop
1. Judge follower unit while master unit is [E03], [L03], [L07] or [L08].
2. Check indoor P.C. board.
Own unit stops while warning is output
to other indoor units.
Displayed when
(Follower unit)
error is detected
(Automatic reset)
P31
F01
F02
Coming-off, disconnection or short of
indoor heat exchanger temp. sensor
(TCJ)
1. Check indoor heat exchanger temp. sensor (TCJ).
2. Check indoor P.C. board.
Stop
Displayed when
(Automatic reset) error is detected
Coming-off, disconnection or short of
indoor heat exchanger temp. sensor
(TC)
1. Check indoor heat exchanger temp. sensor (TC).
2. Check indoor P.C. board.
Stop
Displayed when
(Automatic reset) error is detected
Coming-off, disconnection or short of
indoor heat exchanger temp. sensor
(TA)
1. Check indoor heat exchanger temp. sensor (TA).
2. Check indoor P.C. board.
Stop
Displayed when
F10
F29
(Automatic reset) error is detected
Indoor EEPROM error
Stop
Displayed when 1. Check indoor EEPROM. (including socket insertion)
(Automatic reset) error is detected
• EEPROM access error
2. Check indoor P.C. board.
Communication error between indoor
MCU
1. Check indoor P.C. board.
Stop
Displayed when
E10
E18
(Automatic reset) error is detected
• Communication error between fan
driving MCU and main MCU
1. Check remote controller wiring.
2. Check indoor power supply wiring.
3. Check indoor P.C. board.
Regular communication error between
indoor header and follower units
Stop
Displayed when
(Automatic reset) error is detected
– 48 –
Error mode detected by outdoor unit
The check code has been ramified from 4 series and after
The ramified check code is displayed only when both the indoor unit and the outdoor unit are 4 series and after.
(Ex. Combination of RAV-SM1404BT-E with RAV-SP1404AT-E)
When the outdoor unit is 3 series and before, the conventional check code is displayed.
(Ex. Combination of RAV-SM1404BT-E and RAV-SM1403AT-E: Indoor unit only is 4 series.)
Operation of diagnostic function
Check
code
Judgment and measures
Status of
air conditioner
Cause of operation
Condition
Indoor
unit
Disconnection, short of discharge temp. sensor
(TD)
1. Check discharge temp. sensor (TD).
2. Check outdoor P.C. board.
Displayed when
error is detected
F04
F06
F07
F12
F15
F08
Stop
Stop
Stop
Disconnection, short of outdoor temp. sensor
(TE)
1. Check temp. sensor (TE).
2. Check outdoor P.C. board.
Displayed when
error is detected
Disconnection, short of outdoor temp. sensor
(TL)
1. Check temp. sensor (TL).
2. Check outdoor P.C. board.
Displayed when
error is detected
Disconnection, short of suction temp. sensor
(TS)
1. Check suction temp. sensor (TS).
2. Check outdoor P.C. board.
Displayed when
error is detected
Stop
Stop
Displayed when 1. Check temp. sensor (TE, TS).
Miss-mounting of outdoor temp. sensor (TE, TS)
error is detected
2. Check outdoor P.C. board.
Disconnection, short of outside temp. sensor
(TO)
1. Check outside temp. sensor (TO).
2. Check outdoor P.C. board.
Displayed when
error is detected
Continue
Disconnection, short of heat sink temp. sensor
(TH)
Displayed when 1. Check outdoor P.C. board.
F13
F31
L10
L29
Stop
Stop
Stop
Stop
error is detected
(Q201 is incorporated in TH sensor.)
Displayed when 1. Check outdoor P.C. board.
error is detected
Outdoor P.C. EEPROM error
Displayed when 1. Outdoor service P.C. board
Unset jumper of service P.C. board
error is detected
Check model type setting jumper wire.
Communication error between outdoor P.C.
board MCU
Displayed when 1. Check outdoor P.C. board
error is detected
2. Connection check for each P.C. board.
Heat sink overheat error
1. Check screw tightening between PC. Board and heat
sink and check radiator grease.
Displayed when
error is detected
P07
Stop
Stop
∗ Heat sink temp. sensor detected over specified
temperature.
2. Check heat sink blast path.
1. Check gas leak, recharge
2. Check full open of service valve.
3. Check PMV (Pulse Motor Valve).
4. Check broken pipe.
Detection of gas leak
∗ Discharge temp. sensor (TD), Suction temp.
sensor (TS) detected temperature over
specified temp.
Displayed when
error is detected
P15
5. Check discharge temp. sensor (TD), suction temp.
sensor (TS).
4-way valve inverse error
1. Check operation of 4-way valve.
∗ After heating operation has started, indoor
heat exchanger temp. lowers under the
specified temp.
2. Check outdoor heat exchanger (TE), suction temp.
sensor (TS).
Displayed when
P19
Stop
error is detected 3. Check indoor heat exchanger sensor (TC).
4. Check 4-way valve coil.
∗ After heating operation has started, outdoor
heat exchanger / suction temp. rises over the
specified temp.
5. Check PMV (Pulse Motor Valve).
Compressor break down
1. Check power supply voltage.
Displayed when
H01
H02
Stop
Stop
∗ Although operation has started, operation
frequency decreases and operation stops.
2. Overload operation of refrigerating cycle
error is detected
Compressor lock
1. Trouble of compressor (Lock, etc.): Replace compressor.
Displayed when
* Over-current detection after compressor
start-up
2. Wiring error of compressor (Open phase)
error is detected
– 49 –
Operation of diagnostic function
Check
code
Status of
air conditioner
Cause of operation
Condition
Judgment and measures
Indoor
unit
Displayed when 1. Check outdoor P.C. board (MCC-1596).
H03
P05
Current detection circuit error
Stop
Stop
error is detected
(AC current detection circuit)
1. Check open phase of 3-phase power supply.
Displayed when
error is detected
Open phase of 3-phase power supply
2. Black lead wire to be connected to CN03 of MCC-1596
does not pass through T611.
1. Check connection of Ps sensor connector.
2. Check failure of Ps sensor.
Displayed when
error is detected
F23
Ps sensor error
Stop
3. Check compressing power error of compressor.
4. Check 4-way valve error.
5. Check outdoor P.C. board error.
1. Check service valves are fully opened.
(Gas side, Liquid side)
2. Check clogging of outdoor PMV. (PMV1, 2)
3. Check SV2 circuit.
Displayed when
error is detected
Low pressure protective operation
4. Check Ps sensor error.
H06
Stop
5. Check clogging of indoor filter.
6. Check clogging of refrigerant pipe.
7. Check of outdoor fan operation. (In heating mode)
8. Check short of refrigerant.
Discharge temp. error
1. Check refrigerating cycle (Gas leak)
2. Trouble of electronic expansion valve
3. Check discharge temp. sensor (TD).
Displayed when
error is detected
P03
H04
∗ Discharge temp. (TD) over specified value
was detected.(1.6)
Stop
Stop
1. Check case thermostat and connector.
2. Check gas leak, recharge
Case thermostat operation
Displayed when
error is detected
3. Check full open of service valve.
4. Check PMV (Pulse Motor Valve).
5. Check broken pipe.
∗ Abnormal overheat of compressor
1. Check service valves are fully opened.
(Gas side, Liquid side)
2. Check of outdoor fan operation.
3. Check motor error of outdoor fan.
4. Check clogging of outdoor PMV. (PMV1, 2)
5. Check clogging of heat exchanger in indoor/outdoor units.
6. Short-circuit status of suction/discharge air in outdoor unit.
7. Check outdoor P.C. board error.
Displayed when
error is detected
P04
High pressure SW system error
Stop
8. Check fan system error (Cause of air volume drop) at
indoor side.
9. Check PMV opening status in indoor unit.
Displayed when 1. Check power supply voltage.
error is detected
P05
P20
Power supply voltage error
Stop
Stop
1. Check outdoor heat exchanger sensor (TL).
High pressure protective operation
2. Check indoor heat exchanger sensor (TC, TCJ).
3. Check full open of service valve.
• During cooling operation, outdoor temp.
sensor (TL) detected temperature over
specified temp.
Displayed when 4. Check indoor/outdoor fan.
error is detected
5. Check PMV (Pulse Motor Valve).
• During heating operation, indoor temp.
sensor (TC, TCJ) detected temperature over
specified temp.
6. Check clogging and short circuit of indoor/outdoor heat
exchanger.
7. Overcharge of refrigerant. Recharge
1. Check lock of fan motor.
Displayed when
error is detected
P22
Outdoor fan system error
Stop
2. Check power supply voltage between L2 and N.
3. Check outdoor P.C. board.
1. When performing operation while taking-off compressor
wire, P26 error occurs. Check control P.C. board.
Short-circuit error of compressor driving
element
Displayed when
P26
P29
Stop
Stop
error is detected 2. When performing operation while taking-off compressor
wire, an error does not occur. (Compressor rare short)
Displayed when 1. Check control P.C. board.
error is detected
Position detection circuit error
– 50 –
Error mode detected by remote controller or central controller (TCC-LINK)
Operation of diagnostic function
Judgment and measures
Status of
air conditioner
Check code
Cause of operation
Condition
Power supply error of remote controller, Indoor
EEPROM error
1. Check remote controller inter-unit wiring.
2. Check remote controller.
No communication with master indoor unit
• Remote controller wiring is not correct.
• Power of indoor unit is not turned on.
• Automatic address cannot be completed.
Not displayed at all
(Operation on
remote controller
is impossible.)
3. Check indoor power wiring.
4. Check indoor P.C. board.
Stop
—
5. Check indoor EEPROM.
(including socket insertion)
→ Automatic address repeating phenom-
enon generates.
Receiving error from remote controller
1. Check remote controller inter-unit wiring.
2. Check remote controller.
No communication with master indoor unit
Stop
(Automatic reset)
E01
• Disconnection of inter-unit wire between
remote controller and master indoor unit
(Detected by remote controller side)
Displayed when
error is detected
∗ If center exists,
operation continues.
∗2
3. Check indoor power wiring.
4. Check indoor P.C. board.
Stop
Sending error of remote controller
(Automatic reset)
Signal send error to indoor unit
(Detected by remote controller side)
Displayed when 1. Check sending circuit inside of remote
E02
∗ If center exists,
operation continues.
error is detected
controller.
→ Replace remote controller.
1. In 2-remote controllers (including wireless),
there are multiple main units.
Stop
There are multiple main remote controllers.
(Detected by remote controller side)
Displayed when
error is detected
E09
L20
(Sub unit
Check that there are 1 main remote
controller and other sub remote controllers.
continues operation.)
Duplicated indoor central addresses on
communication of central control system
(Detected by indoor/central controller side)
1. Check setting of central control system
network address. (Network adapter SW01)
Stop
(Automatic reset)
Displayed when
error is detected
Central controller
L20
2. Check network adapter P.C. board.
—
1. Check communication wire / miswiring
2. Check communication (U3, U4 terminals)
3. Check network adapter P.C. board.
∗3
Communication circuit error of central
control system
(Detected by central controller side)
Continues
Displayed when
Central controller
(Send)
4. Check central controller (such as central
control remote controller, etc.)
(By remote controller) error is detected
C05
(Receive)
C06
5. Check terminal resistance. (TCC-LINK)
—
Continuation/Stop
Indoor Gr sub unit error
(Detected by central controller side)
Displayed when Check the check code of the corresponding
error is detected unit from remote controller.
(According
Central controller
P30
to each case)
∗2 The check code cannot be displayed by the wired remote controller.
(Usual operation of air conditioner becomes unavailable.)
For the wireless models, an error is notified with indication lamp.
∗3 This trouble is related to communication of remote controller (A, B), central system (TCC-LINK U3, U4),
and [E01], [E02], [E03], [E09] or [E18] is displayed or no check display on the remote controller according
to the contents.
– 51 –
6-3. Diagnostic Procedure for Each Check Code (Indoor Unit)
Check code
[E01 error]
NO
Correct inter-unit cable
of remote controller
Is inter-unit cable of A and B normal?
YES
Is there no disconnection or
contact error of connector on harness
from terminal block of indoor unit?
YES
Correct connection of connector.
Check circuit wiring.
NO
NO
Is group control operation?
YES
NO
Check power connection of indoor unit.
(Turn on power again.)
Is power of all indoor units turned on?
YES
NO
Check indoor P.C. board (MCC-1402).
Is power supplied to remote controller?
AB terminal: Approx. DC18V
Defect → Replace
YES
YES
Are 2 remote controllers set
without header unit?
Correct a header unit/a follower unit.
(Remote controller address connector)
NO
Check remote controller P.C. board.
Defect → Replace
[E09 error]
YES
Are 2 header units set in
2 remote controllers?
Correct as a header unit
and a follower unit.
NO
Check remote controller P.C. board.
Defect → Replace
– 52 –
[E04 error]
NO
NO
NO
NO
Is group address setup of
remote controller correct?
Does outdoor operate?
Check CODE No. [14].
YES
YES
Are wiring in indoor unit and
1, 2, 3 inter-unit cables correct?
Correct wiring and
inter-unit cables.
YES
Correct wiring of connector
and terminal blocks.
Are wirings of terminal blocks
(1, 2, 3) wired to CN67 normal?
YES
Does the voltage
between 2 and 3 of the indoor unit
inter-unit terminal blocks
(1, 2, 3) vary?
NO
Check indoor P.C. board
(MCC-1402).
Defect → Replace
∗ As shown in the following figure,
carry out measurement within 20 seconds
after the power was turned on.
S5277G
Black
White
3
2
1
Terminal block
Check outdoor P.C. board.
Check indoor P.C. board.
Defect → Replace
Defect → Replace
[E10 error]
YES
Check power supply voltage.
Is there no disorder of power supply?
NO
Correct lines.
Check and eliminate noise, etc.
Check indoor control P.C. board
(MCC-1402).
Defect → Replace
– 53 –
[E18 error]
NO
Correct inter-unit cable
of remote controller.
Is inter-unit cable
of A and B normal?
YES
Is there no disconnection
or contact error of connector
on harness from terminal block
of indoor unit?
YES
Correct connection of connector.
Check circuit wiring.
NO
NO
Is group control operation?
YES
Check power
connection status of indoor unit
(Connect again).
NO
Is power of all indoor units turned on?
YES
NO
Is connection twin-triple connection?
YES
Is there no contact error
of indoor/outdoor inter-unit wire
YES
Correct indoor/outdoor inter-unit wire
(Serial signal line).
NO
Check indoor P.C. board
(MCC-1402).
Defect → Replace
[E08, L03, L07, L08 error]
E08: Duplicated indoor unit No.
L03: There are 2 or more header units in a group control.
L07: There is 1 or more group address [Individual] in a group control.
L08: The indoor group address is unset. (99)
If the above error is detected when power supply turned on, the mode enters automatically in the automatic
address set mode. (Check code is not output.)
However, if the above error is detected during the automatic address set mode, a check code may be output.
[L09 error]
YES
Set capacity data of indoor unit.
(Setup CODE No. (DN)=11)
Is not yet capacity setting
of indoor unit set up?
NO
Check indoor P.C. board (MCC-1402).
Defect → Replace
– 54 –
[L20 error]
Are wiring connections
to communication lines
U3 and U4 normal?
NO
Correct wiring connection.
YES
YES
Is not the multiple same central
control system addresses connected?
Correct central control system address.
NO
Check central controller
(including 1:1 model connection interface)
and indoor P.C. board (MCC-1402).
Defect → Replace
[L30 error]
NO
NO
Are outside devices of
Check indoor P.C. board (MCC-1402).
connector CN80 connected?
Defect → Replace
YES
Check outside devices.
Defect → Replace
Do outside devices normally work?
YES
Check cause of operation.
[P30 error] (Central controller)
NO
NO
Is group operation carried out?
YES
Is there check code
on remote controller in the
follower remote controller?
YES
Check indoor P.C. board (MCC-1402).
Check corresponding
indoor unit/outdoor unit.
Defect → Replace
– 55 –
[P10 error]
Is connection of
NO
float switch connector
(Indoor control board CN34)
normal?
Correct connection
of connector.
YES
NO
YES
Does float switch work?
YES
Is circuit wiring normal?
NO
Check and correct wiring
and wire circuit.
NO
Does drain pump work?
YES
Are connector pins 1 and 3
at drain pump unit side shorted
(Resistance value 0)?
NO
NO
Is power of
drain pump turned on? ∗
YES
YES
Replace drain pump
and indoor P.C. board
(MCC-1402).
Check the drain pipe, etc.
Check indoor P.C. board
(MCC-1402).
Replace drain pump.
Check wiring.
Defect → Replace
∗ Check that voltage of 1 – 3 pin of CN068 on the indoor P.C. board is 220–240V.
[F10 error]
NO
Is connection of TAsensor connector
(indoor P.C. board CN104) nornal?
Connect connector
of connector.
YES
NO
Are characteristics of TA sensor resistance value normal?
Replace TA sensor.
YES
∗ Refer to Characteristics-1.
Check indoor P.C. board (MCC-1402).
Defective → Replace
– 56 –
[P12 error]
Turn off the power.
Are not there connections errors or
disconnection on connectors CN333 and CN334
of indoor unit P.C. board (MCC-1402)?
YES
Correct connection of connector.
NO
Remove connectors CN333 and
CN334 of indoor unit P.C. board
(MCC-1402).
NO
Does the fan rotate without trouble
when handling the fan with hands?
Replace indoor fan motor.
Replace indoor fan motor.
YES
Are resistance values between phases
at fan motor connector CN333 motor side of
indoor P.C. board (MCC-1402) correct? *1
NO
1
YES
*
1
3
• Are not coil windings between
(Red lead) and
(White lead),
3
5
between
5
(White lead) and
(Black lead), between
(Red lead) opened or shorted?
1
(Black lead) and
→ For resistance, see the following values.
Approx. 70 to 100Ω
SM56, SM80
SM110, SM140
35 to 50Ω
Is resistance value of fan motor connector
CN333 at motor side of indoor P.C. board
(MCC-1402) correct? *2
NO
2
Replace indoor fan motor.
YES
*
Check resistance of fan motor position detection circuit.
Is not coil winding between
1
4
(Yellow lead) and
(Pink lead)
opened or shorted? → Resistance: Approx. 5 to 20kΩ
NO
Is signal output of indoor fan motor
position detection correct? *3
Replace indoor fan motor.
YES
3
*
Check fan motor position detection signal.
• Using a tester, measure the voltage between CN334
1
5
and
of
indoor P.C. board (MCC-1402) under condition that CN333 and
CN334 are mounted and the power is turned on.
→ Rotate the fan slowly with hands, and check the pin voltage
swings between 0 to 5V voltage.
4
5
• Between
and
: 5V
Check indoor P.C. board
(MCC-1402).
CN333
Defect → Replace
CN334
– 57 –
[P19 error]
Is operation of 4-way valve normal?
(Check the pipe temp., etc.
during cooling/heating operation.
NO
NO
Are 1.3 to 1.6kΩ applied to
resistance value of 4-way valve coil ?
Replace 4-way valve coil.
YES
YES
Defective
Check outdoor P.C. board.
Check outdoor P.C. board operation.
Defective → Replace
(See the following description.)
OK
Check temperature sensors.
TE sensor
TS sensor
Indoor TC sensor
Defective → Correct, replace
Check 4-way valve.
Defective → Replace
Operation check direction of the outdoor P.C. board (In case of self-preservation valve)
1) Set the Dip switch SW804 as same as the following table and push SW801 for approx. 1 second. It enables
you to check the exchange operation to cooling cycle or heating cycle.
• Only for approx. 10 seconds, the power is turned on.
• As the heat value of part (coil: resistance R700) is large, when checking the operation continuously, wait 1
minute or more until the next check. (There is no problem if a coil is not connected.)
2) After check, turn off all the Dip switches SW804.
Exchange to cooling cycle
Exchange to heating cycle
SW804 SW801 CN701
SW804 SW801 CN701
1
1
Push
Push
4
4
DC180V or more
DC180V or more
Check by tester
Analog tester: Good article if over DC180V
Digital tester: Although in some cases, the value varied and indicated. If the maximum value is DC180V or
more, it is good article.
– 58 –
[F02 error]
NO
NO
Is connection of TC sensor connector
Correct connection of connector.
Replace TC sensor.
(CN101 on Indoor P.C. board) correct?
YES
Are characteristics of
TC sensor resistance value normal?
YES
∗ Refer to Charqacteristics-2.
Check indoor P.C. board (MCC-1402).
Defect → Replace
[F01 error]
NO
NO
Is connection of TCJ sensor connector
(CN102 on Indoor P.C. board) correct?
Correct connection of connector.
Replace TCJ sensor.
YES
Are characteristics of
TCJ sensor resistance value normal?
YES
∗ Refer to Charqacteristics-2.
Check indoor P.C. board (MCC-1402).
Defect → Replace
– 59 –
[C06 error] (1:1 model connection interface)
NO
NO
Are U3 and U4 communication lines normal?
YES
Correct communication line.
∗1
Correct connection of connector.
Is connection of connector normal?
YES
∗1
In case of 1:1 model connection interface
1:1 model connection interface (MCC-1440) CN51 and indoor P.C. board CN050.
NO
Check connection of A and B terminal blocks.
Correct communication line of remote controller.
Are A and B communication lines normal?
YES
YES
NO
Is there no connection error of power supply cable?
NO
Correct power wiring.
Is not the source power supply turned on?
YES
Turn on the source power supply.
YES
Did a power failure occur?
NO
YES
YES
Is the network address changed
from the wired remote controller?
Clear the check code.
Eliminate noise, etc.
NO
Is there no noise source?
NO
Uncontrolled
(Same to others)
Can the other indoor units
be normally controlled from the central controller?
Or is the operation status of indoor unit reflected?
Check central controller.
Defect → Replace
YES
Uncontrolled
Can the indoor unit be normally controlled
from the wired remote controller?
Check indoor P.C. board (MCC-1402).
Defect → Replace
YES
Check the power supply transformer of
1:1 model connection interface (MCC-1440).
Defective → Replace
– 60 –
[E03 error] (Master indoor unit)
[E03 error] is detected when the indoor unit cannot receive a signal from the wired remote controller
(also central controller).
Check A and B remote controllers and communication lines of the central control system U3 and U4.
As communication is impossible, this check code [E03] is not displayed on the wired remote controller and the
central controller.
[E01] is displayed on the wired remote controller and [C06 error] is displayed on the central controller.
If these check codes generate during operation, the air conditioner stops.
[F29 error]
This check code indicates a detection error of IC10 non-volatile memory (EEPROM) on the indoor unit P.C.
board, which generated during operation of the air conditioner. Replace the service P.C. board.
∗ When EEPROM was not inserted when power supply turned on or when the EEPROM data read/write
operation is impossible at all, the automatic address mode is repeated. In this time, [97 error] is displayed on
the central controller.
(Approx.
3 minutes)
(Approx.
1 minute)
LED (D002) on indoor unit
P.C. board flashes with
1Hz for approx. 10 seconds.
[SET] is displayed on
wired remote controller.
[SETTING]
goes off.
Reboot
(Reset)
(Power ON)
(Repetition)
[P31 error] (Follower indoor unit)
When the master unit of a group operation detected [E03], [L03], [L07] or [L08] error, the follower unit of the
group operation detects [P31 error] and then the unit stops.
There is no display of the check code or alarm history of the wired remote controller. (In this model, the mode
enters in automatic address set mode when the header unit detected [L03], [L07] or [L08] error.)
– 61 –
Temperature – Resistance value characteristic table
TA,TC,TCJ,TE,TS,TO sensor
TD,TL sensor
Representative value
Representative value
Resistance value (k
Ω
)
Resistance value (kΩ)
Temperature
Temperature
(°C)
(Minimum (Standard (Maximum
(Minimum (Standard (Maximum
(°C)
value)
32.33
19.63
12.23
9.75
value)
33.80
20.35
12.59
10.00
7.990
5.192
3.451
2.343
1.623
1.146
0.8237
0.6023
value)
35.30
21.09
12.95
10.25
8.218
5.375
3.594
2.454
1.709
1.213
0.8761
0.6434
value)
value)
value)
0
10
20
25
30
40
50
60
70
80
90
100
0
10
20
25
30
40
50
60
70
80
90
100
150.5
161.3
172.7
92.76
58.61
47.01
37.93
25.12
17.00
11.74
8.269
5.925
4.321
3.205
99.05
62.36
49.93
40.22
26.55
17.92
12.34
8.668
6.195
4.507
3.336
105.6
66.26
52.97
42.59
28.03
18.86
12.95
9.074
6.470
4.696
3.468
7.764
5.013
3.312
2.236
1.540
1.082
0.7740
0.5634
TA,TC,TCJ,TE,TS,TO sensor
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
Temperature (˚C)
TD,TL sensor
200
150
100
50
20
15
10
5
0
0
0
10
20
30
40
50
60
70
80
90
100
Temperature (˚C)
– 62 –
Winding Resistance of Fan Motor
Part name
Checking procedure
Compact 4-way
Cassette type
Measure the resistance value of each winding by using the tester.
Fan motor
STF-230-60-1R
Fan motor inside wiring diagram
Position
Resistance value
87 ± 8.7
Black – Red
Red
1
Black – White
87 ± 8.7
2
3
4
5
White
Black
Red – White
87 ± 8.7
Under 20°C
Concealed Duct type
Fan motor
ICF-280-120-1C
Measure the resistance value of each winding by using the tester.
Fan motor inside wiring diagram
(RAV-SM804BT
ICF-280-120-2C
(RAV-SM564BT
RAV-SM1104BT
RAV-SM1404BT
)
∗
∗
Position
Resistance value
23.4 ± 2.4
,
,
)
∗
Black – Red
∗
Red
Black – White
Red – White
23.4 ± 2.4
1
2
3
4
5
White
Black
23.4 ± 2.4
Under 20°C
Ceiling type
Fan motor
SWF-280-60-1R
(RAV-SM564CT
SWF-280-60-2R
(RAV-SM804CT
Measure the resistance value of each winding by using the tester.
Fan motor inside wiring diagram
)
∗
∗
Position
Resistance value
53 ± 5.3
)
Black – Red
Red
Black – White
Red – White
53 ± 5.3
1
2
3
4
5
White
Black
53 ± 5.3
Under 20°C
Ceiling type
Fan motor
SWF-280-120-1R
Measure the resistance value of each winding by using the tester.
Fan motor inside wiring diagram
(RAV-SM1104CT
RAV-SM1404CT
,
∗
)
∗
Position
Resistance value
37 ± 3.7
Black – Red
Red
Black – White
Red – White
37 ± 3.7
1
2
3
4
5
White
Black
37 ± 3.7
Under 20°C
– 63 –
7. REPLACEMENT OF SERVICE P.C. BOARD
7-1. Indoort Unit
<Note: when replacing the P.C. board for indoor unit servicing>
The nonvolatile memory (hereafter called EEPROM, IC10) on the indoor unit P.C. board before replacement includes
the model specific type information and capacity codes as the factory-set value and the important setting data which
have been automatically or manually set when the indoor unit is installed, such as system/indoor/group addresses,
high ceiling select setting, etc.
When replacing the P.C. board for indoor unit servicing, follow the procedures below.
After replacement completes, confirm whether the settings are correct by checking the indoor unit No., Group
master unit / sub unit settings and perform the cooling cycle confirmation through the trial operation.
<Replacement procedures>
CASE 1
Before replacement, the indoor unit can be turned on and the setting data can be read out by wired
remote control operation.
EEPROM data read out [1]
ò
Replacement of P.C. board for Indoor unit servicing and power on [2]
ò
Writing the read out EEPROM data [3]
ò
Power reset
(for all indoor units connected to the remote control when the group operation control is performed.)
CASE 2
Before replacement, the indoor unit cannot be turned on or the wired remote controller operation is
impossible due to trouble of the power supply circuit to the remote controller. (Defective P.C. board)
Replacement of EEPROM
Remove EEPROM installed on the P.C. board before replacement
and then replace it with EEPROM of the service P.C. board.
ò
Replacement & power ON for service P.C. board [2]
ò
Read-out of EEPROM data [1]
If reading-out is impossible, proceed to CASE 3.
ò
Replacement of EEPROM
Replace EEPROM again. (Set the original EEPROM to the service P.C. board.)
ò
Replacement & power ON for service P.C. board [2]
ò
Writing-in of the read-out EEPROM data [3]
Power reset
(for all indoor units connected to the remote controller when the group operation control is performed.)
CASE 3
The EEPROM before replacement is defective and the setting data cannot be read out.
Replacement & power ON for service P.C. board [2]
ò
Writing the setting data to EEPROM, such as high ceiling installation setting
and optional connection setting, etc., based on the customer information. [3]
ò
Power reset
(for all indoor units connected to the remote control when the group operation control is performed.)
– 64 –
[1] Setting data read out from EEPROM
The setting data modified on the site, other than factory-set value, stored in the EEPROM shall be read out.
SET
CL
TEST
Step 1 Push
,
and
button on the remote controller simultaneously for more than 4 seconds.
∗ When the group operation control is performed, the unit No. displayed for the first time is the header unit No.
At this time, the CODE No. (DN) shows “10 ”. Also, the fan of the indoor unit selected starts its operation
and the swing operation also starts if it has the louvers.
UNIT LOUVER
Step 2 Every time when the
order. Specify the indoor unit No. to be replaced.
1. Change the CODE No. (DN) to 10 → 01 by pushing
button is pushed, the indoor unit No. under the group control is displayed in
/
buttons for the temperature
setting. (this is the setting for the filter sign lighting time.)
At this time, be sure to write down the setting data displayed.
2. Change the CODE No. (DN) by pushing
/
buttons for the temperature setting.
Similarly, be sure to write down the setting data displayed.
3. Repeat the step 2-2 to set the other settings in the same way and write down the setting data as shown
in the table 1 (example).
∗ The CODE No. (DN) are ranged from “01 ” to “FF ”. The CODE No. (DN) may skip.
TEST
Step 3 After writing down all setting data, push
button to return to the normal stop status.
(It takes approx. 1 min until the remote controller operation is available again.)
CODE No. required at least
1. The CODE No. for the Indoor unit type and Indoor unit capacity are
DN
10
11
12
13
14
Contents
Type
required to set the rotation number setting of the fan.
2. If the system/indoor/group addresses are different from those before
replacement, the auto-address setting mode starts and the manual
resetting may be required again.
Indoor unit capacity
System address
Indoor unit address
Group address
(when the multiple units group operation including twin, triple system.)
[2] P.C. Board for indoor unit servicing replacement procedures
Step 1 Replace the P.C. board to the P.C. board for indoor unit servicing.
On the new P.C. board, set the same setting of the jumper wire and setting of shortcut connection
connector as those of the P.C. board before replacement.
Step 2 According to the system configuration, turn on the indoor unit following to the either methods shown below.
a) Single operation (Indoor unit is used as standalone.)
Turn on the indoor unit.
1. After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3].
(System address = 1, Indoor unit address = 1, Group address = 0 (standalone) are automatically set.)
SET
CL
TEST
2. Push
,
and
buttons simultaneously for more than 4 seconds to interrupt the auto-address
setting mode, and proceed to [3]. (The unit No. “
” is displayed.)
b) Group operation (including twin system)
Turn on the indoor unit(s) with its P.C. board replaced to the P.C. board for indoor unit servicing,
according to either methods 1 or 2 shown below.
1. Turn on only the indoor unit with its P.C. board replaced. (Be sure to confirm the remote controller is
surely connected. If not, the operation [3] cannot be performed.)
Perform either methods 1 or 2 described in item a) above.
2. Turn on the multiple indoor units including the indoor unit with its P.C. board replaced.
• Twin, triple, double twin, 1 system only
• All group connections
After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3].
∗ The header unit of the group may be changed by performing the auto-address setting.
Also, the system address/Indoor unit address of the indoor unit with its P.C. board replaced may be
assigned to the addresses (not used) other than those of the indoor units without its P.C. board replaced.
It is recommended to keep the information in advance, which cooling system the indoor unit belongs to
or whether the indoor unit works as the header unit or the follower unit in the group control operation.
– 65 –
[3] Writing the setting data to EEPROM
The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.
SET
CL
TEST
Step 1 Push
,
and
buttons on the remote controller simultaneously for more than 4 seconds.
∗ In the group control operation, the unit No. displayed for the first time is the header unit No.
At this time, the CODE No. (DN) shows “10 ”. Also, the fan of the indoor unit selected starts its operation
and the swing operation starts if it has the louvers.
(The unit No. “
” is displayed if the auto-address setting mode is interrupted in [2] step 2 a))
UNIT LOUVER
Step 2 Every time when
button is pushed, the indoor unit No. in the group control operation are displayed
in order.
(The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.)
Specify the indoor unit No. with its P.C. board replaced to the P.C. board for indoor unit servicing.
(You cannot perform this operation if “
” is displayed.)
Step 3 Select the CODE No. (DN) can be selected by pushing the
/
button for the temperature setting.
Step 4 Set the indoor unit type and capacity.
The factory-set values shall be written to the EEPROM by changing the type and capacity.
1. Set the CODE No. (DN) to “10 ”. (without change)
2. Select the type by pushing
/
buttons for the timer setting.
(For example, 4-way Air Discharge Cassette Type is set to “0001”. Refer to table 2)
SET
3. Push
button.
(The operation completes if the setting data is displayed.)
4. Change the CODE No. (DN) to “11 ” by pushing
5. Select the capacity by pushing buttons for the timer setting.
(For example, 80 Type is set to “0012”. Refer to table 3)
/
buttons for the temperature setting.
/
SET
6. Push
button.
(The setting completes if the setting data are displayed.)
TEST
7. Return to the normal stop status by pushing
button.
(Approx. 1 minute is needed to start operation of the remote controller.)
Step 5 Write the on-site setting data to the EEPROM, such as address setting, etc. Perform the steps 1 and 2
above again.
Step 6 Change the CODE No. (DN) to “01 ” by pushing
/
buttons for the temperature setting.
(this is the setting for the filter sign lighting time.)
Step 7 Check the setting data displayed at this time with the setting data put down in [1].
1. If the setting data is different, modify the setting data by pushing
the data put down in [1].
/
buttons for the timer setting to
<Fig. 1 RBC-AMT32E>
The operation completes if the setting data is displayed.
2. If the data is the same, proceed to next step.
Step 8 Change the CODE No. (DN) by pushing
/
buttons for the
temperature setting. As described above, check the setting data
and modify to the data put down in [1].
Step 9 Repeat the steps 6 and 7.
TEST
Step 10 After the setting completes, push
button to return to the normal
stop status. (It takes approx. 1 min until the remote control opera-
tion is available again.)
∗ The CODE No. (DN) are ranged from “01 ” to “FF ”.
The CODE No. (DN) is not limited to be serial No.
SET
Even after modifying the data wrongly and pushing
button, it
is possible to return to the data before modification by pushing
CL
button if the CODE No. (DN) is not changed.
3 6 5 1 4 2
<Fig. 2 EEPROM layout diagram>
The EEPROM (IC10) is attached to the IC socket. When detaching the EEPROM, use a tweezers, etc. Be sure to
attach the EEPROM by fitting its direction as shown in the figure.
∗ Do not bend
the IC lead
Match the notched parts of IC socket and
EEPROM and then put in.
when replacing.
Notch
EEPROM(IC10)
MCC-1402
EEPROM
IC socket
Notch
– 66 –
Table 1
DN
01
02
03
06
0F
10
11
12
13
14
Item
Filter sign lighting time
Filter pollution level
Central control address
Heating suction temperature shift
Cooling only
Setting data
Factory-set value
Depending on Type
0000: standard
0099: Not determined
0002: +2°C
0000: Heat pump
Type
Depending on model type
Depending on capacity type
0099: Not determined
0099: Not determined
0099: Not determined
Indoor unit capacity
System address
Indoor unit address
Group address
Temperature range of cooling/heating
automatic SW control point
1E
0003: 3 deg (Ts ± 1.5)
28
2b
31
32
40
60
C2
d0
d1
d3
Auto restart after power failure
0000: None
Thermo output SW (T10
)
0000: Thermo ON
0000: Not available
0000: Body sensor
0003: Drain pump OFF
0000: Available
0075: 75%
ƒ
Ventilation fan (standalone)
Sensor select (Selection of static pressure)
Drain pump control
Timer setting (wired remote controller)
DEMAND setup
Remote controller save function
Frost protection function
0001: Valid
0000: Not available
0001: 210rpm
Revolutions per minute of dry operation
Table 2. Type: CODE No. 10
Table 3. Indoor unit capacity:
CODE No. 11
Setting data
0004
Type
Type name abb.
RAV-SM∗∗∗BT-E (TR)
RAV-SM∗∗∗CT-E (TR)
RAV-SM∗∗∗MUT-E (TR)
Setting data
0000∗
0006
Type
Disable
40
Concealed Duct Type
Ceiling Type
0007
0014
Compact 4-way Cassette Type
0007
45
0009
56
0012
80
0015
110
140
0017
∗ EEPROM initial value on the P.C. board for indoor unit servicing.
– 67 –
8. SETUP AT LOCAL SITE AND OTHERS
8-1. Indoor Unit
8-1-1. Test Run Setup on Remote Controller
<Wired remote controller>
1. When pushing TEST button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display.
ON / OFF
Then push
button.
• “TEST” is displayed on LC display during operation of Test Run.
• During Test Run, temperature cannot be adjusted but air volume can be selected.
• In heating and cooling operation, a command to fix the Test Run frequency is output.
• Detection of error is performed as usual. However, do not use this function except case of Test Run
because it applies load on the unit.
2. Use either heating or cooling operation mode for [TEST].
NOTE : The outdoor unit does not operate after power has been turned on or for approx. 3 minutes after
operation has stopped.
3. After a Test Run has finished, push TEST button again and check that [TEST] on LC display has gone off.
(To prevent a continuous test run operation, 60-minutes timer release function is provided to this remote
controller.)
(Compact 4-way Cassette Type and Concealed Duct Type)
1
Remove a screw which fixes the serial olate of the receiver part on the wireless remote controller.
Remove the nameplate of the reciver section by inserting a minus screwdriver, etc. into the notch at the
bottom of the plate, and set the Dip switch to [TEST RUN ON].
2
Execute a test operation with
button on the wireless remote controller.
•
,
and LED flash during test operation.
• Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is
invalid.
Do not use this method in the operation other than test operation because the equipment is damaged.
3
4
Use either [COOL] or [HEAT] operation mode for test operation.
• The outdoor unit does not operate approx. 3 minutes after power-ON and operation stop.
After the test operation finished, stop the air conditioner from the wireless remote controller,
and return Dip switch of the sensor section as before.
(A 60 minutes timer clearing function is attached to the sensor section in order to prevent a continuous test
operation.)
Receiver unit
Spacer
M4 × 25 screw
(2 pieces)
Nameplate
Notch
Small screw
– 68 –
<Ceiling Type>
Procedure
Description
Turn on power of the air conditioner.
The operation is not accepted for 5 minutes when power has been turned on at first time after installation,
and 1 minute when power has been turned on at the next time and after. After the specified time has
passed, perform a test operation.
1
Push [Start/Stop] button and change the operation mode to [COOL] or [HEAT] with [Mode] button.
2
3
Then change the fan speed to [High] using [Fan] button.
Test cooling operation
Test heating operation
Set temperature to [18°C] using [Temperature set]
button.
Set temperature to [30°C] using [Temperature set]
button.
After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately
push [Temperature set] button to set to [19°C] push [Temperature set] button to set to [29°C].
4
5
After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately
push [Temperature set] button to set to [18°C]. push [Temperature set] button to set to [30°C].
Then repeat the procedure
→
→
→
.
4 5 4 5
After approx. 10 seconds, all the display lamps on the sensor part of wireless remote controller,
[Operation] (Green), [Timer] (Green), and [Ready] (Yellow) flash and the air conditioner starts operation.
6
7
If the lamps do not flash, repeat the procedure
and after.
2
After the test operation, push [Start/Stop] button to stop the operation.
<Outline of test operation from the wireless remote controller>
Test cooling operation:
Start → 18°C → 19°C → 18°C → 19°C → 18°C → 19°C → 18°C → (Test operation) → Stop
Test heating operation:
Start → 30°C → 29°C → 30°C → 29°C → 30°C → 29°C → 30°C → (Test operation) → Stop
Be sure to set the
air speed to [High]
2
3, 4, 5, 6
2, 7
– 69 –
8-1-2. Forced Defrost Setup of Remote Controller (For wired remote controller only)
(Preparation in advance)
TEST
SET
CL
1
Push
+
+
buttons simultaneously for 4 seconds or more on the remote controller.
(Push buttons while the air conditioner stops.)
The first displayed unit No. is the master indoor unit address in the group control.
UNIT
2
Every pushing
other.
button, the indoor unit No. in the group control is displayed one after the
Select a main indoor unit (outdoor unit is connected) which is to be defrosted.
In this time, fan and louver of the selected indoor unit operate.
TEMP.
3
4
5
6
Using the set temperature
buttons, specify the CODE No. (DN) 8C.
TIME
Using the timer time
buttons, set time to data 0001. (0000 at shipment)
SET
Push
button. (OK if indication lights)
TEST
Pushing
button returns the status to the normal stop status.
(Practical operation)
ON / OFF
• Push ON/OFF
Key.
• Select the HEAT mode.
• After while, the forced defrost signal is sent to the outdoor unit and then the outdoor unit starts defrost
operation. (The forced defrost operation is performed for Max. 12 minutes.)
• After defrost operation finished, the operation returns to the heating operation.
To execute the defrost operation again, start procedure from above item 1 .
(If the forced defrost operation was executed once, setting of the above forced defrost operation is cleared.)
8-1-3. LED Display on Indoor P.C. Board
1. D002 (Red)
• Goes on at the same time when power was turned on (Main microcomputer operates and goes on.)
• Flashes with 1-second interval (every 500ms): When EEPROM is not provided or writing was an error.
• Flashes with 10-seconds interval (every 5S): When the mode is DISP
2. D203 (Red)
• Goes on when power is supplied to remote controller (Lights on the hardware)
– 70 –
8-1-4. Function Selection Setup
<Procedure> Perform setting while the air conditioner stops.
TEST
SET
CL
1
Push
+
+
buttons simultaneously for 4 seconds or more.
The first displayed unit No. is the master indoor unit address in the group control.
In this time, fan and louver of the selected indoor unit operate.
ò
UNIT LOUVER
2
Every pushing
button (button at left side), the indoor unit No. in the group control is
displayed one after the other. In this time, fan and louver of the selected indoor unit only
operate.
ò
TEMP.
3
4
5
Using the set temperature
buttons, specify the CODE No. (DN).
ò
TIME
Using the timer time
buttons, select the set data.
ò
SET
Push
button. (OK if indication lights)
• To change the selected indoor unit, proceed to Procedure
2
.
• To change item to be set up, proceed to Procedure
3
.
ò
TEST
6
Pushing
button returns the status to the normal stop status.
TEMP
ON / OFF
TIMER SET
TIME
FAN
SAVE
MODE
VENT
3
6
4
5
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
1
2
<Operation procedure>
1 2 3 4 5 6 END
– 71 –
Item No. (DN) table (Selection of function)
DN
Item
Description
At shipment
0002 :2500H
01 Filter sign lighting time}
02 Dirty state of filter
0000 :None
0002 :2500H (4-Way/Duct/Ceiling Type)
0000 :Standard
0001 : High degree of dirt
(Half of standard time)
0000 : Standard
0099 : Unfixed
0002 : +2°C
03 Central control address
0001 :No.1 unit
0099 :Unfixed
to
to
0064 : No.64 unit
06 Heating suction temp shift 0000 :No shift
0002 :+2°C
0001 : +1°C
0010 : –10°C
(Up to recommendation + 6)
0F Cooling only
10 Type
0000 :Heat pump
0001 : Cooling only
0000 : Heat pump
(No display of [AUTO] [HEAT])
0004 :Concealed duct type 0007 : Ceiling type
0014 :Compact 4-way cassette type
According to model type
According to capacity type
11 Indoor unit capacity
0000 :Unfixed
0007 :45 type
0012 : 80 type
0017 : 140 type
0006 : 40 type
0009 : 56 type
0015 : 110 type
12 Line address
0001 :No.1 unit
0001 :No.1 unit
0000 :Individual
to
to
0030 : No.30 unit
0099 :Unfixed
0099 :Unfixed
0099 :Unfixed
13 Indoor unit address
14 Group address
0064 : No.64 unit
0001 : Master of group
0002 :Follower of group
19 Louver type
0000 :No louver
0002 :1-way
0001 : Swing only
0003 : 2-way
According to model type
0003 :3 deg (Ts±1.5)
(Air direction adjustment)
∗ None for concealed duct 0004 :4-way
1E Temp difference of
automatic cooling/heating
mode selection COOL →
HEAT, HEAT →COOL
0000 :0 deg to
0010 : 10 deg
(For setup temperature, reversal of COOL/HEAT by ± (Data value)/2)
28 Auto restart after power
failure
0000 :None
0001 : Auto restart
0000 :None
2A Option
0002 :Default
2b Thermo output selection
0000 :Indoor thermo ON
0001 :Output of outdoor comp-ON receiving
0000: Thermo. ON
(T10
)
ƒ
2E Option
30 Option
31 Option
0000 :Default
0000 :Default
0000 :Default
0000 :Body sensor
0000 :°C
32 Sensor selection
33 Temperature indication
40 Option
0000 :Body TA sensor
0000 :°C (celsius)
0001 : Remote controller sensor
0001 : °F (Fahrenheit)
0003 :Default
0000 :Standard
5d High ceiling selection
(External static pressure
selection)
0000 :Standard
0002 :High ceiling 2
0001 : High ceiling 1
0003 : High ceiling 3
<Concealed Duct type>
Set data
0000
40 Pa
0001
0003
0006
70 Pa*1
100 Pa*2
20 Pa
External static
pressure
Standard
High static
High static Low static
pressure
(At shipment) pressure 1 pressure 2
∗1: SM140 become to 65Pa.
∗2: SM140 become to 90Pa.
– 72 –
DN
Item
Description
At shipment
60 Timer set
0000 :Available (Operable)
0001 :Unavailable (Operation prohibited)
0000 :Available
(Wired remote controller)
8b Correction of high heat feeling
42 Self clean time
0000 :None
0001 : Correction
0000 :None
0002: 1 hour
0000: None
0001: 0.5h to 0.012: 6.0h
The case that compressor-ON time is 10 to 60 minutes is
set up. When ON time is over 60 minutes, the operating
time becomes two times of it.
C2 Power saving
0050: 50%
0000: None
to
0100: 100%
0001: Set
0075: 75%
(Current demand × % to outdoor unit)
CC Forced stop setting for self clean
0000: None
0000: Valid
CD Self clean stop function when [START/
STOP] operation was prohibited
When stopping the air conditioner (including “Fire alarm”
of the control system, etc.) while [START/STOP] operation
is prohibited (Central 1, 2) from the central controller side,
0000: Valid (No self cleaning)
0001: Invalid (Self cleaning)
D0 Existence of Power save operation
0000: Invalid (Unavailable)
0001: Valid (Available)
0001: Valid (Available)
D1 Existence of 8°C heating operation
function
0000: Invalid (Unavailable)}
0001: Valid (Available)
0000: Invalid
(Unavailable)
D3 Revolution count of self clean
0000: Invalid (Self cleaning is not performed.)
0001: Valid (Self cleaning is performed at 210 rpm.)
0001: Valid
(210rpm/operation)
D4 Display/ No display of [SELF CLEANING] 0000: Displayed, 0001: Not displayed
during self clean operation
0000: Displayed
– 73 –
8-1-5. Cabling and Setting of Remote Controller Control
2-remote controller control
<Wired remote controller>
(Controlled by 2 remote controllers)
This control is to operate 1 or multiple indoor units
are controlled by 2 remote controllers.
How to set wired remote controller
as sub remote controller
Change DIP switch inside of the rear side of the
remote controller switch from remote controller master
to sub. (In case of RBC-AMT32E)
(Max. 2 remote controllers are connectable.)
• When connected 2 remote controllers
operate an idoor unit
Remote controller (Inside of the rear side)
Remote controller
switch (Master)
Remote controller
switch (Sub)
1 2
Sub remote
controller
Sold
Sold
separately
separately
Master remote
controller
A B
A B
1
2
DIP switch
1
2
Remote controller
cables (Procured locally)
Terminal block for
remote controller cables
<Wireless remote controller>
A B
How to set wireless remote controller to sub
Indoor unit
1 2 3
remote controller
Standalone receiver
(TCB-AX21E2)
1 2 3
Outdoor unit
• When connected 2 remote controllers
operate the twin
[Remote controller
Sub/Master]
DIP SW
Remote controller
switch (Master)
Remote controller
switch (Sub)
Remote controller
inter-unit wire
(Procured locally)
Sold
Sold
[Operation]
1. The operation contents can be changed by Last-
push-priority.
separately
separately
A B
A B
2. Use a timer on either Master remote controller or
Sub remote controller.
Terminal block for
remote controller cables
<Wireless remote controller>
(Ceiling Type)
A B
A B
Indoor unit 1
1 2 3
Indoor unit 2
1 2 3
How to set wireless remote controller as sub
remote controller
Turn Bit [3: Remote controller Sub/Master] of the
switch S003 from OFF to ON.
1 2 3
Inter-unit wiring
between indoor units
(Procured locally)
Outdoor unit
Rear cover
ON
1
2
3
4
ON
Receiver P.C. board
Upper case
S003
Bit 3 : OFF → ON
(Setup method)
ON
One or multiple indoor units are controlled by two
remote controllers.
1
2
3
4
ON
(Max. 2 remote controllers are connectable.)
– 74 –
8-1-6. Monitor Function of Remote Controller
n Calling of sensor temperature display
<Contents>
Each sensor temperature of the remote controller, indoor unit, and outdoor unit can become known by calling
the service monitor mode from the remote controller.
<Procedure>
TEST
CL
1
Push
+
buttons simultaneously for 4 seconds to
call the service monitor mode.
The service monitor goes on, the master indoor unit No. is
displayed, at first and then the temperature of CODE No. 00 is
displayed.
TEMP
ON / OFF
TIMER SET
TIME
FAN
SAVE
MODE
VENT
TEMP.
2
Push temperature set
buttons and then change
the CODE No. of data to be monitored.
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
The item code list is shown below:
2 4 1
<Operation procedure>
3
1 2 3 4
Returned to usual display
CODE No.
Data name
Unit
CODE No.
Data name
Unit
01
Room temperature
°C
60
61
62
63
65
6A
6D
70
72
73
F1
Outdoor heat exchanger (Coil) temperature (TE)
Outside temperature (TO)
°C
°C
(Remote controller)
02
03
Indoor suction temperature (TA)
°C
°C
Compressor discharge temperature (TD)
Compressor suction temperature (TS)
Heat sink temperature (THS)
°C
Indoor heat exchanger (Coil)
temperature (TCJ)
°C
°C
04
Indoor heat exchanger (Coil)
temperature (TC)
°C
Operation current (× 1/10)
A
07
F2
F3
F8
Indoor fan revolution frequency
Indoor fan calculated operation time
Filter sign time
rpm
×100h
×1h
Outdoor heat exchanger (Coil) temperature (TL)
Compressor operation frequency
°C
rps
rpm
rpm
×100h
Outdoor fan revolution frequency (Lower)
Outdoor fan revolution frequency (Upper)
Compressor calculated operation time
Indoor discharge temperature
°C
ò
UNIT LOUVER
3
4
Push
button to select the indoor unit to be monitored.
Each data of the indoor unit and its outdoor units can be monitored.
ò
TEST
Pushing
button returns the status to the usual display.
• The data value of each item is not the real time, but value delayed by a few seconds to ten-odd seconds.
• If the combined outdoor unit is one before 2 or 3 series, the outdoor unit data [6D], [70], [72] and [73] are
not displayed.
– 75 –
n Calling of error history
<Contents>
The error contents in the past can be called.
<Procedure>
TEST
CL
1
Push
+
buttons simultaneously for 4 seconds or
more to call the service check mode.
TEMP
ON / OFF
Service Check goes on, the CODE No. 01 is displayed, and
then the content of the latest alarm is displayed.
The number and error contents of the indoor unit in which an
error occurred are displayed.
TIMER SET
TIME
FAN
SAVE
MODE
VENT
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
2
3
In order to monitor another error history, push the set
temperature
/
buttons to change the error
history No. (CODE No.)
CODE No. 01 (Latest) → CODE No. 04 (Old)
NOTE : 4 error histories are stored in memory.
<Operation procedure>
1 2 3
2 3 1
TEST
Pushing
button returns the display to usual display.
Returned to usual display
REQUIREMENT
CL
Do not push
button, otherwise all the error histories of the indoor unit are deleted. If the error histories are
deleted by pushing CL button, turn off the power supply once and then turn on the power supply again.
When the error which is same as one occurred at the last before deletion continuously occurs again, it may not be
stored in memory.
(Group control operation)
In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.
Twin, triple or double twin of an outdoor unit is one of the group controls.
The indoor unit connected with outdoor unit (Individual/Header of twin) controls room temperature according to
setting on the remote controller.
<System example>
OUT
OUT
IN
OUT
IN
OUT
IN
OUT
IN
Header
2-1
IN
1-1
3-1
4-1
7-1
Max. 8 units
Remote controller
1. Display range on remote controller
The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the header
unit is reflected on the remote controller.
1) Concealed duct high static pressure type (RAV-SMXXX) is not set up on the header unit.
• If the Concealed duct high static pressure type is the header unit:
Operation mode: [Cooling/Heating AUTO] [HEAT] [COOL] [FAN] and no [DRY]
Air volume select: [HIGH]
• When the operation mode is [DRY], [FAN] stops in concealed duct high static pressure models.
2. Address setup
If there is no serial communication between indoor and outdoor when the power is turned on, it is judged as
follower unit of the twin. (Every time when the power is turned on)
• The judgment of header (wired) / follower (simple) of twin is carried out every time. It is not stored in non-
volatile memory.
Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic address.
If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the system
is rebooted and the automatic address setting will be judged again.
1) Connect indoor/outdoor connecting wire surely.
2) Check line address/indoor address/group address of the unit one by one.
Especially in case of twin, triple, double twin, check whether they are identical system address or not.
3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the unit
No. is not duplicated with one of another unit.
– 76 –
n Indoor unit power-ON sequence
• The unit without power feed waits entirely
→ Waiting status is released by system start
• Reboot when power is fed on the way
Power ON
<By indoor unit
which receives power feed from outdoor unit>
<Automatic
address judgment>
Not normal
NO
3 minutes elapse
Gr construction check
YES
Normal
∗ Gr normal
1) There is no duplicated indoor unit address.
2) There is no invalid indoor unit address.
3) Individual unit and header / follower units
are not intermingled.
4) Only a unit for individual.
5) Header indoor unit and 1 or more
follower units for Gr.
System start
Automatic address starts.
(Approx. 1 minute up to finish)
<Initial communication>
Outdoor model distinction (10 seconds) (Indoor unit)
Twin header/follower distinction (Indoor unit)
Gr construction, louver information (Remote controller)
<Cautions at test run>
• Power supply/Indoor/Outdoor serial and Gr wiring: OK
• Powers of all indoor units are turned on within 3 minutes.
• Reception time for remote controller operation
(After power supply was turned on)
1) When address is OK : Approx. 50 seconds
2) In AUTO address
: Approx. 4 to 5 minutes
Remote controller operation is available.
(Approx. 50 seconds after power-ON)
<Usual regular
communication>
Regular communication between indoor units (Every 30 seconds) (Header / Follower)
Regular communication of the identical piping system (Every 30 seconds)
(Twin header / follower) (When the above status changes, immediately communicates.)
(Repetition)
• In a group operation, if the indoor unit which was fed power after judgment of automatic address cannot
receive regular communication from the header unit and regular communication on identical pipe within
120 seconds after power was turned on, it reboots (system reset).
→ The operation starts from judgment of automatic address (Gr construction check) again.
(If the address of the header unit was determined in the previous time, the power fed to the header unit
and reboot works, the header unit may change though the indoor unit line address is not changed.)
– 77 –
8-2. Setup at Local Site / Others
Model name:TCB-PCNT30TLE
8-2-1. 1:1 Model Connection Interface (TCC-LINK adapter)
1. Function
This model is an optional P.C. board to connect the indoor unit to 1:1 model connection interface.
2. Microprocessor block diagram
Indoor unit
Central controller
1:1 model connection interface
P.C. board
CN40
CN050
Indoor control
P.C. board
CN041
1:1 model
connection interface
communication circuit
CN51
Terminal
resistance
SW01
MCC-1440
Terminal block
(A, B)
1:1 model
connection interface
Communication units
Communication distance : 2000 m
: Total 64 units
Remote controller
3. 1:1 model connection interface wiring connection
CAUTION
1) When controlling DI, SDI series collectively, 1:1 model connection interface (This option) is required.
2) In case of group operation, twin-triple operation, the 1:1 model connection interface is necessary to be
connected to the header unit.
3) Connect the central control devices to the central control system wiring.
4) When controlling DI, SDI series only, turn on only Bit 1 of SW01 of the least line of the system address No. (OFF
when shipped from the factory)
∗ In case of DI, SDI series, the address is necessary to be set up again from the wired remote
controller after automatic addressing.
Central control device
Central control device
Central control devices: Max. 10 units
U1 U2
U3 U4
U1 U2
U3 U4
Refrigerant line 1
Refrigerant line 2
Refrigerant line 3
1 2 3
Refrigerant line 4
1 2 3
Outdoor unit
1 2 3
1 2 3
Indoor/outdoor inter-unit wire (AC230V serial)
Central control system wiring
Caution 3
* Wiring for No.1 and 2 only
Header
unit
Follower
unit
Follower
unit
Follower
Header unit
unit
Indoor unit
U3 U4 1 2 3
A B
U3 U4 1 2 3
1 2 3
1 2 3
U3 U4 1 2 3
1 2 3
A B
A B
A B
A B
A B
1:1 model connection
interface
This product
sold separately
Caution 1
Caution 2
(
)
Remote controller
wiring
Remote controller
Remote controller
Remote controller
Remote controller
Twin/Triple operation (Example of triple)
Group operation (Max. 8 units)
Indoor units in all refrigerant lines: Max. 64 units
[If mixed with SMMS (Link wiring), multi indoor units are included.]
* However group follower units of SDI, DI series are not included in number of the units.
– 78 –
4. Wiring Specifications
• Use 2-core with no polar wire.
No. of wires
Size
• Match the length of wire to wire length of the central control
system. If mixed in the SMMS system, the wire length is
lengthened with all indoor/outdoor inter-unit wire length at side.
Up to 1000m: twisted wire 1.25mm2
Up to 2000m: twisted wire 2.0mm2
2
• To prevent noise trouble, use 2-core shield wire.
• Connect the shield wire by closed-end connection and apply open process (insulating process) to the last
terminal. Ground the earth wire to 1 point at indoor unit side. (In case of central controlling of digital inverter
(DI, SDI) unit setup)
CAUTION
1) Closed-end connection of shield wire (Connect all the connecting parts of each indoor unit)
2) Apply open process to the last terminal (insulating process).
3) Ground earth wire to 1 point at indoor unit side.
Central control device
U1 U2
Caution 2
Caution 1
Caution 3
Central control system wiring
Outdoor unit
: 1:1 model connection
interface
(TCC-LINK adapter)
(This option)
1 2 3
1 2 3
1 2 3
1 2 3
Follower unit
Header unit
U3 U4 1 2 3
Follower unit
1 2 3
Follower unit
1 2 3
Header unit
Indoor unit
U3 U4 1 2 3
A B
1 2 3
U3 U4 1 2 3
A B
A B
A B
A B
A B
Earth screw
Remote controller
Remote controller
Remote controller
Remote controller
(Group operation)
(Triple operation)
5. P.C. Board Switch (SW01) Setup
When performing collective control by customized setup only, the setup of terminator is necessary.
• Using SW01, set up the terminator.
• Set up the terminator to only the interface connected to the indoor unit of least line address No.
Central control device
Central control device
Central control devices: Max. 10 units
U1 U2
U3 U4
U1 U2
U3 U4
Refrigerant line 1
Outdoor unit
Refrigerant line 2
Refrigerant line 3
1 2 3
Refrigerant line 4
1 2 3
1 2 3
1 2 3
Indoor/outdoor inter-unit wire (AC230V serial)
Central control system wiring
* Wiring for No.1 and 2 only
Follower
Header
unit
U3 U4 1 2 3
Followerunit
1 2 3
Follower unit
1 2 3
Header unit
U3 U4 1 2 3
unit
Indoor unit
U3 U4 1 2 3
1 2 3
A B
A B
A B
A B
A B
A B
1:1 model connection interface
(TCC-LINK adapter)
This product
Remote controller wiring
Remote controller Remote controller
(
)
sold separately
Remote controller
Remote controller
Remote controller
Group operation (Max. 8 units)
Twin/Triple operation (Example of triple)
Line address
SW01 Bit 1
SW01 Bit 2
Remarks
1
ON
OFF
2
OFF
OFF
4
OFF
OFF
(OFF at shipment from factory)
(OFF at shipment from factory)
Turn SW01 Bit 1 to ON. As status shipped from factory
As status shipped from factory
(Reference) Setup contents of switch
SW01
Terminator
Remarks
Bit 1
OFF
ON
OFF
ON
Bit 1
OFF
OFF
ON
None
100Ω
75Ω
Mixed with SMMS (Link wiring) at shipment from factory
Central control by digital inverter only
Spare
Spare
ON
43Ω
– 79 –
6. External view of P.C. board assembly
Terminator (SW01)
52
85
7. Address setup
In addition to set up the central control address, it is necessary to change the indoor unit number.
(Line/Indoor/Group address). For details, refer to 1:1 model connection interface Installation Manual.
8-3. How to Set up Central Control Address Number
When connecting the indoor unit to the central control remote controller using 1:1 model connection interface, it
is necessary to set up the central control address number.
• The central control address number is displayed as the line No. of the central control remote controller.
How to set up from indoor unit side by remote controller
<Procedure> Perform setup while the unit stops.
VENT
TEST
1
Push
When group control is executed, first the unit No.
control are selected. In this time, fans of all the selected indoor units are turned on. (Fig. 1)
+
buttons for 4 seconds or more.
is displayed and all the indoor units in the group
UNIT LOUVER
(Keep
displayed status without pushing
button.)
In case of individual remote controller which is not group-controlled, Line address and Indoor unit address
are displayed.
TEMP.
2
3
Using temperature setup
buttons, specify CODE No. 03.
TIME
Using timer time
buttons, select the SET DATA.
The setup data is shown in the table below (Table 1).
SET
4
5
Push
button. (OK if display goes on.)
• To change the item to be set up, return to Procedure 2.
(Fig.1)
TEST
Push
button.
The status returns to usual stop status.
CODE No.
SET DATA SETTING
UNIT No.
R.C. No.
(Table 1)
TEMP.
ON / OFF
SET DATA
Central control address No.
TIMER SET
FAN
MODE
VENT
0001
0002
0003
:
1
2
2
1
3
1
TIME
SAVE
3
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
:
0064
64
0099
Unset (Setup at shipment from factory)
5
4
– 80 –
How to confirm the central control address (New function for AMT32E remote controller)
<Procedure> It can be confirmed even during operation or stopping.
UNIT LOUVER
1
2
Push
button for 4 seconds or more.
ò
In the frame at left side of the remote controller screen, the lighting set contents are
displayed.
During unset time, 0099 (At shipment from factory) is displayed.
ò
3
After lighting display for 3 seconds, the display automatically disappears.
If any button is pushed during display, immediately the display disappears and then the pushed button is
displayed.
– 81 –
9. ADDRESS SETUP
9-1. Address Setup
<Address setup procedure>
When an outdoor unit and an indoor unit are connected and they are twin-triple, or when an outdoor unit is
connected to each indoor unit respectively in the group operation even if multiple refrigerant lines are provided,
the automatic address setup completes with power-ON of the outdoor unit.The operation of the remote control-
ler is not accepted while automatic address works. (Approx. 4 to 5 minutes)
Setup of line address of outdoor unit,
indoor unit address, and group address
Completion of wiring work
NO
YES
NO
Do you arbitrarily set the
indoor unit address?
Is refrigerant line 1 line?
NO
YES
(MANUAL)
Is group control performed?
YES
(To AUTO address mode)
NO
Are there multiple units
of twin-triple connections?
YES
NO
Do you change setting after
automatic setting at the first time?
YES
Connect one remote controller with
one indoor unit (1 : 1) tentatively with
communication wiring.
Turn on power of outdoor unit.
Turn on power of outdoor unit.
Turn on power of outdoor unit.
After completion of address
setup, change is to arbitral
(
)
Setup of automatic
address finishes within
Set to all indoor units one by one.
address/group manually.
(
)
4 to 5 minutes.
END
• When the following addresses are not stored in the neutral memory (IC10) on the indoor P.C. board, a test run
operation cannot be performed. (Unfixed data at shipment from factory)
CODE No. Data at shipment
SET DATA range
0001 (No. 1 unit) to 0030 (No. 30 unit)
Line address
12
13
0099
0099
Indoor unit
address
0001 (No. 1 unit) to 0064 (No. 64 unit)
Max. value of indoor units in the identical refrigerant line (Double twin = 4)
0000 : Individual (Indoor units which are not controlled in a group)
0001 : Header unit (1 indoor unit in group control)
0002 : Follower unit (Indoor units other than header unit in group control)
Group
address
14
0099
– 82 –
9-2. Address Setup & Group Control
<Terminology>
Indoor unit No.
Group address
:N – n = Outdoor unit line address N (Max. 30) – Indoor unit address n (Max. 64)
:0 = Single (Not group control)
1 = Header unit in group control
2 = Follower unit in group control
Header unit (= 1) :The representative of multiple indoor units in group operation sends/receives signals to/
from the remote controllers and follower indoor units.
(*It has no relation with an indoor unit which communicates serially with the outdoor units.)
The operation mode and setup temperature range are displayed on the remote controller
LCD. (Except air direction adjustment of louver)
Follower unit (= 2) :Indoor units other than header unit in group operation
Basically, follower units do not send/receive signals to/from the remote controllers.
(Except errors and response to demand of service data)
Master unit
:This unit communicates with the indoor unit (sub) which serial-communicates with the
(Representative unit) outdoor units and sends/receives signal (Command from compressor) to/from the outdoor
(Header Twin)
Sub unit
units as the representative of the cycle control in the indoor units of the identical line
address within the minimum unit which configures one of the refrigerating cycles of Twin,
Triple, Double twin.
:Indoor units excluding the header unit in Twin, Triple, Double twin
(Subordinate unit) This unit communicates with (Master) indoor unit in the identical line address and performs
(Follower Twin)
control synchronized with (Master) indoor unit.
This unit does not perform the signal send/receive operation with the outdoor units.:
N judgment for serial signal error.
9-2-1. System configuration
1. Single
2. Single group operation
Outdoor
1-1
Individual
1-1
1-2
Indoor
(Header/Master)
Header/Master
Follower/Sub
Remote controller
3. Triple
1-1
1-2
Follower/Sub
1-3
Follower/Sub
Header/Master
– 83 –
4. Single group operation
• Each indoor unit controls the outdoor unit individually.
2-1
Header/Sub
1-1
Header/Sub
4-1
3-1
Header/Sub
8-1
Header/Sub
Header/Master
5. Multiple groups operation (Manual address setting)
2-1
Header/Sub
1-1
Header/Sub
1-2
Follower/Sub
3-1
3-2
3-3
Follower/Sub
Header/Master
Follower/Sub
• Master unit: The master unit receives the indoor unit data (thermo status) of the sub
(Without identical line address & indoor/outdoor serial) and then finally controls the outdoor
compressor matching with its own thermo status.
The master unit sends this command information to the sub unit.
• Sub unit:
The sub unit receives the indoor unit data from the master (With identical line address & indoor/
outdoor serial) and then performs the thermo operation synchronized with the master unit.
The sub unit sends own thermo ON/OFF demand to the master unit.
(Example)
No. 1-1 master unit sends/receives signal to/from No. 1-2 and No. 1-3 sub units.
(It is not influenced by the line 2 or 3 address indoor unit.)
– 84 –
9-2-2. Automatic Address Example from Unset Address (No miswiring)
1. Standard (One outdoor unit)
(1-1)
1-2
(1-2)
(1-1)
1-2
(1-2)
(1-3)
1-1
Individual
1-1
1-3
1-1
Header/Master
Follower/Sub
Header/Sub
Follower/Master
Follower/Sub
(Header/Master)
Only turning on source power supply (Automatic completion)
2. Group operation
(Multiple outdoor units = Multiple indoor units with serial communication only, without twin)
2-1
Header/Sub
1-1
Header/Sub
3-1
8-1
Header/Sub
Header/Master
(Max. : 8 units)
Only turning on source power supply (Automatic completion)
3. Multiple groups operation
Single
Twin
Triple
2-1
Header/Sub
1-1
Header/Sub
2-3
3-1
Header/Sub
3-3
1-2
Follower/Sub
Follower/Master
Follower/Sub
Change is necessary
Manually change addresses of the multiple sub units
simultaneously from the remote controller.
2-1
1-1
1-2
3-1
3-2
3-3
– 85 –
9-3. Address Setup (Manual Setting from Remote Controller)
(Example of 2-lines wiring)
(Real line: Wiring, Broken line: Refrigerant pipe)
In case that addresses of the indoor units will be
determined prior to piping work after wiring work
• Set an indoor unit per a remote controller.
• Turn on power supply.
Outdoor
Outdoor
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
Indoor
A B
Indoor
A B
Indoor
A B
Indoor
A B
Indoor
A B
2
1
2
2
2
2
1
2
2
1
3
2
Line address → 1
Indoor unit address → 1
Group address → 1
SET
CL
TEST
1
2
Push
+
+
buttons
A B
simultaneously for 4 seconds or more.
Remote controller
(Line address)
Using the temperature setup
set 12 to the CODE No.
For the above example, perform setting by
connecting singly the wired remote controller
without remote controller inter-unit wire.
/
buttons,
Group address
Individual
: 0000
3
4
5
Using timer time
/
buttons, set the line address.
Header unit : 0001
Follower unit : 0002
In case of group control
SET
Push
button. (OK when display goes on.)
(Indoor unit address)
Using the temperature setup
/
buttons, set 13 to the CODE No.
6
7
8
Using timer time
/
buttons, set 1 to the line address.
SET
Push
button. (OK when display goes on.)
(Group address)
Using the temperature setup
/
buttons, set 14 to the CODE No.
9
Using timer time
Folloer unit.
/
buttons, set 0000 to Individual, 0001 to Header unit, and 0002 to
SET
10
11
Push
button. (OK when display goes on.)
TEST
Push
button.
Setup completes. (The status returns to the usual stop status.)
TEMP
ON / OFF
TIMER SET
TIME
FAN
SAVE
MODE
VENT
2, 5, 8
3, 6, 9
END 11
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
4, 7, 10
1
<Operation procedure>
1 2 3 4 5 6 7 8 9 10 11 END
– 86 –
9-4. Confirmation of Indoor Unit No. Position
1. To know the indoor unit addresses though position of the indoor unit body is recognized
• In case of individual operation (Wired remote controller : indoor unit = 1 : 1)
(Follow to the procedure during operation)
<Procedure>
ON / OFF
1
2
Push
Push
button if the unit stops.
button.
UNIT LOUVER
Unit No. 1-1 is displayed on LCD.
TEMP
ON / OFF
(It disappears after several seconds.)
1
The displayed unit No. indicate line address and indoor unit
address. (When other indoor units are connected to the
TIMER SET
TIME
FAN
SAVE
MODE
VENT
Operation
identical remote controller (Group control unit), other unit
FILTER
RESET TEST
UNIT LOUVER
SET
CL
SWING/FIX
UNIT LOUVER
numbers are also displayed every pushing
button.
2
<Operation procedure>
END
1 2
2. To know the position of indoor unit body by address
• To confirm the unit No. in the group control
(Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.)
<Procedure>
The indoor unit numbers in the group control are
successively displayed, and fan, louver, and drain pump
of the corresponding indoor unit are turned on.
(Follow to the procedure during operation)
VENT
TEST
1
Push
for 4 seconds or more.
• Unit No. is displayed.
and
buttons simultaneously
TEMP
ON / OFF
TIMER SET
TIME
FAN
SAVE
MODE
VENT
• Fans and louvers of all the indoor units in the
group control operate.
1
3
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
UNIT LOUVER
2
Every pushing
button, the unit
numbers in the group control are
successively displayed.
• The unit No. displayed at the first time indicates
the header unit address.
2
<Operation procedure>
END
• Fan and louver of the selected indoor unit only
operate.
1 2 3
TEST
3
Push
button to finish the procedure.
All the indoor units in the group control stop.
– 87 –
10. DETACHMENTS
10-1. Compact 4-Way CassetteType
RAV-SM
MUT
∗∗∗
∗
Ceiling panel: RBC-UM11PG(W)E
Preparing work:
1. Before work, be sure to stop the power supply of the air conditioner and turn off switch of the power supply
breaker. (Otherwise an electric shock may be caused.)
2. Be sure to put on the gloves when working; otherwise an injury may be caused with parts sharp edges etc.
No.
Part name
Procedure
Remarks
1
Suction grille
1. Detachment
1)
1) Loosen the fixing screw.
2) Slide the fixing bracket toward the outside.
3) Slide the air intake grille buttons to detach
the air intake grille from the ceiling panel.
Lower the grille slowly whilst holding
4) Slide hooks (2 positions) of the suction grille
to inner side, and then hang down the
suction grille.
2)
5) Take off the strap that connects the panel
and the suction grille, and then lift up shaft of
the suction grille to remove the suction grille.
3)
Suction grille
Ceiling panel
Hook hole of ceiling panel
Hook of
fall-preventive strap
Hook of suction grille
2. Attachment
1) Hook shaft of the suction grille to the panel.
2) Hook strap of the suction grille to the original position of the panel.
3) Close the suction grille and slide the hooks outward to fix it.
4) Slide the fixing bracket toward the inner side.
5) Tighten the fixing screw.
– 88 –
No. Part name
Procedure
Remarks
2
Electric
parts cover
1. Detachment
Screws
Temporary hanging hook
1) Perform work of procedure 1 -1.
2) Take off screws (Ø4 × 10, 3 pcs.) fixing the
electric parts cover.
3) Remove the electric parts cover from the
temporary hanging hook of the electric
parts cover, and then open the cover.
2. Attachment
1) Close the electric parts cover and hook the
cover hole to the temporary hanging hook.
2) Tighten the fixing screws. (Ø4 × 10, 3 pcs.)
Screw
Unnecessary to remove this hook.
3
Adjust
corner cover
1. Detachment
1
1) Perform work of procedure of
-1.
2) Turn clockwise screws (4 positions) at the
suction port corner until adjust corner
cover rises up.
NOTE)
1
2
When you work, keep the torque at below 12N•m.
Do not use an electric screwdriver; otherwise the
mechanism of adjust corner cover may be
damaged and not be removed.
Torque~12N·m
3) Pull downward the risen-up part of adjust
corner cover and remove it.
4) Remove the strap of adjust corner cover.
1
2
2. Attachment
1) Attach the strap of adjust corner cover to
the panel, hook claws of adjust corner
cover to the panel corner, and then push
the opposite side into the panel.
2) Turn screws (4 positions) of the suction
port corner counterclockwise until bump
between adjust corner cover and panel
disappears.
NOTE)
When you work, keep the torque at below 12N•m.
Do not use an electric screwdriver;
otherwise the mechanism of adjust corner cover
may be damaged and not be removed.
Torque~12N·m
3
– 89 –
No.
Part name
Procedure
Remarks
4
Ceiling panel
1. Detachment
1) Perform works of procedure
1
2
-1-,
-1,
3
and
-1.
2) Remove the flap connector (CN33, White, 5P)
connected to the control P.C. board and then
take off the lead wire from the clamp.
Hanging
section of tentative
hook of ceiling panel
Temporary
bracket
Push to remove
NOTE)
Remove the connectors after unlocking the lock of
the housing.
Drain piping
corner
3) Take off screws (M5, 4 pcs.) fixing the ceiling
panel.
4) Push the temporary bracket to inner side to
remove the ceiling panel.
2. Attachment
1) Hook the panel to the temporary bracket of
the drain pan of the main body.
Ceiling panel
Temporary
bracket
NOTE)
The panel has directionality.
Therefore mount the panel according to the temporary
bracket and the bracket mounting position.
2) Tighten the fixing screws. (M5, 4 pcs.)
Washer
based screw
Hanging section
3) Connect flap connector of the
ceiling panel to the connector
(CN33, White, 5P) of the
control P.C. board.
of temporary bracket
CN33
Cable clamp
– 90 –
No. Part name
Procedure
Remarks
5
1. Detachment
1) Perform works of procedure
Control P.C.
board
1
2
-1- and
-1.
2) Remove the connectors connected from the control P.C. board to other parts.
CN33 : Louver motor (5P, White)
CN34 : Float switch (3P, Red)
CN41 : Terminal block of remote controller (3P, Blue)
CN40 : Terminal block of crossover between inside and outside (5P, Black)
CN68 : Drain pump (3P, Blue)
CN67 : Terminal block of power supply (3P, Black)
CN101: TC sensor (2P, Black)
CN102: TCJ sensor (2P, Red)
CN104: Room temp sensor (2P, Yellow)
CN333: Fan motor power supply (5P, White)
CN334: Fan motor position detection (5P, White)
NOTE)
Remove the connectors after
unlocking the lock of the housing.
Ferrite core for sensor lead
3) Unlock the lock of the card
edge spacer (6 positions)
and then remove the
control P.C. board.
Card edge spacer
Drawing-out port of lead wire Ferrite core for fan motor
2. Attachment
1) Fix the control P.C. board to the card edge spacer. (6 positions)
2) Connect the connectors as original before being removed in item 1.
NOTE)
For drawing of each wire and position of ferrite core, perform wiring same as those before removing.
If there is incomplete drawing of wire, short or water leakage of the parts may be caused.
Fix the sensor lead wires with cord clamps (2 positions) so that
it does not slacken at P.C. board side and draw wires as shown in the figure.
Cord clamp
Tighten together the shield wires of the
sensor lead wires and the remote controller.
Be careful that other sensor does not fall out.
Cord clamp
Arrow view E
Please note the
float SW lead wires are
set at inner side of the
fan motor lead wires.
Turn up the sensor lead wires
and fix surely with the cord clamp.
Adhere on the
transformer.
<Details of sensor lead wire drawing>
E
Cord clamp
As shown in the figure,
hook the sensor lead wires
to claw of the piping cover
and then pass them so that
they are stored in the groove.
Turn up the fan motor lead wires
and fix surely with the cord clamp.
(There should be no catching of
lead wire by P.C. board.)
After mounting the piping
cover, check each lead wire
does not hit the liquid pipe.
Clamp (yellow, gray, black) lead wires
of the fan motor and arrange them
as shown in the figure.
<Details of piping cover assembly and mounting>
<Details of fan motor lead wire drawing>
– 91 –
No. Part name
Procedure
Remarks
1. Detachment
1) Perform works of procedure
6
Electric
parts box
1
2
-1-and
-1.
2) Remove connectors of the lead wire connected to the following connectors of the control P.C.
board.
CN33 : Louver motor (5P, White)
CN34 : Float switch (3P, Red)
CN68 : Drain pump (3P, Blue)
CN101: TC2 sensor (2P, Black)
CN102: TCJ sensor (2P, Red)
CN333: Fan motor power supply (5P, White)
CN334: Fan motor position detection (5P, White)
NOTE)
Remove the connectors after unlocking the lock of the housing.
3) Remove each lead wire
from cord clamps in the
electric parts box.
Ferrite core for sensor lead
4) Remove the power supply
wiring, remote controller
wiring, and crossover wiring.
5) Take off screws
(Ø4 × 10, 2 pcs.)
Card edge spacer
Drawing-out port of lead wire Ferrite core for fan motor
2. Attachment
1) Tighten screws (Ø4 × 10, 2 pcs.) fixing the electric parts box.
2) Connect the connectors as original before being removed in item 1.
3) Perform power supply wiring, remote controller wiring, and crossover wiring between inside
and outside.
NOTE)
For drawing of each wire and position of ferrite core, perform wiring same as those before removing.
If there is incomplete drawing of wire, short or water leakage of the parts may be caused.
Fix the sensor lead wires with cord clamps (2 positions) so that
it does not slacken at P.C. board side and draw wires as shown in the figure.
Cord clamp
Tighten together the shield wires of the
sensor lead wires and the remote controller.
Be careful that other sensor does not fall out.
Cord clamp
Arrow view E
Please note the
float SW lead wires are
set at inner side of the
fan motor lead wires.
Turn up the sensor lead wires
and fix surely with the cord clamp.
Adhere on the
transformer.
<Details of sensor lead wire drawing>
E
Cord clamp
As shown in the figure,
hook the sensor lead wires
to claw of the piping cover
and then pass them so that
they are stored in the groove.
Turn up the fan motor lead wires
and fix surely with the cord clamp.
(There should be no catching of
lead wire by P.C. board.)
After mounting the piping
cover, check each lead wire
does not hit the liquid pipe.
Clamp (yellow, gray, black) lead wires
of the fan motor and arrange them
as shown in the figure.
<Details of piping cover assembly and mounting>
<Details of fan motor lead wire drawing>
– 92 –
No. Part name
7
Procedure
Remarks
Bell mouth
1. Detachment
1) Perform work of procedure
1
-1.
Fixing claws
for lead wires
2) Take off the lead wires of the drain pump, float
switch, and fan motor from the bell mouth.
Bell mouth
3) Take off fixing screws of the bell mouth.
(Ø4 × 10, 4 pcs.)
2. Attachment
1) Mount the bell mouth with screws.
(Ø4 × 10, 4 pcs.)
2) Perform wiring as original before being
removed.
NOTE)
Pinch lead wire of the drain pump and float switch
with lead wire fixing claws of the bell mouth and
perform wiring along the guide.
4 screws
Fixing claws
for lead wires
8
Turbo fan
1. Detachment
7
1) Perform work of procedure
-1.
Fan motor fixing
M6 nut
Drawing-out port of
fan motor lead wire
2) Take off the nut (M6 nut 1 pc.) of the turbo fan.
NOTE)
Use a box wrench for attachment and detachment of
the turbo fan. If using a monkey wrench etc, the other
parts may be damaged in work.
2. Attachment
1) Insert the turbo fan into the fan motor so that
boss of the turbo fan matches with cut surface
of the fan motor, and then tighten it with nut.
NOTE)
Tightening torque of turbo fan: 5.9 ± 0.6N.m
Apply looseness-preventing agent to the nut after
tightening.
Turbo fan
– 93 –
No. Part name
Procedure
Remarks
9
Fan motor
1. Detachment
1) Perform work of procedure
Fixing nut for fan motor
8
.
2) Take off screws fixed with lead holding bracket
of the fan motor. (Ø4 × 10, 2 pcs.)
3) Open wiring holding part of the fan motor lead
holding bracket and then take off the fan motor
lead wire from the bracket.
4) Take off fixing nuts for the fan motor to remove
the fan motor.(M 3 pcs.)
Fan motor
NOTE)
Use a box wrench for attachment and detachment of
the fan motor fixing nuts; otherwise contact or
damage for other parts may be caused.
Fan motor
earthh wire
Fixing screw
Holding metal fitting
for fan motor lead wire
2. Attachment
1) Mount the fan motor with the fixing nuts.
NOTE)
Tightening torque of turbo fan: 5.9 ± 0.6N.m
Apply looseness-preventing agent (as paints) to the
nut after tightening.
2) Attach the fan motor lead wire holder.
NOTE)
• For the fan motor lead wire, fix the lead wire holding
bracket along concave part of the ceiling panel.
(There is no catch-in of lead wire and ceiling panel.)
• When fixing the lead wire bracket, tighten fan motor
earth together with the lead wire.
• For this work, do not use an electric screwdriver.
• Take note the damage of earth terminal.
3) Bend the lead wire holding part and fix the fan
motor lead wire.
Wiring holding bracket
NOTE)
Be sure that the lead wire does not come to contact
with the heat exchanger.
Fan motor lead wire
Concave part
of ceiling panel
– 94 –
No.
Part name
Drain pan
Procedure
Remarks
10
1. Detachment
1) Perform works of procedure
2 screws
4
7
-1 and
-1.
2) Remove the drain cap and extract drain water
accumulated in the drain pan.
NOTE)
Socket of drain pan
When removing the drain cap, be sure to receive
drain water with a bucket, etc.
3) Take off screws fixing the drain pan to remove
the drain pan. (Ø4×10, 4 pcs.)
Drain pan
2. Attachment
1) Insert the drain cap into the drain pan.
NOTE)
Put a stick or others into hole at center of the drain
cap, and then insert the drain cap until it strikes on
the socket of the drain pan.
2 screws
2) Draw each lead wire to the correct positions,
and then insert the drain pan into the main
unit.
NOTE)
Piping holder rib
Draw lead wires of the drain pump and the float
switch along the guide of the cabinet. Insert the drain
pan along the guides of sensors (TC1, TC2, TCJ)
and PMV lead wire.
The drain pan and each lead wire are not caught in;
otherwise water leakage may be caused.
3) Fix the drain pan with screws. (Ø4 × 10, 4 pcs.)
Piping holder
Lead wire
Drain pump
assembly
1. Detachment
11
Drain pummp assembly
1) Perform work of procedure 10 -1.
2) Pick up the hose band and slide it from the
pump connecting part to remove the drain
hose.
Hose band
3) Take off screws (Ø4 × 10, 3 pcs.) fixing the
drain pump assembly, and then move hooking
claw (1 position) of the main body from the
drain pump assembly to remove the drain
pump assembly.
2. Attachment
White marked position
1) Fix the drain pump assembly as original.
Drainn hose
NOTE)
For fixing, use a hooking claw (1 position) and
screws (3 positions).
When screwing, be sure not to run on the hooking
claw at main body side.
2) Mount the drain hose and the hose band as
original.
NOTE)
Insert the drain hose up to the end of pump connect-
ing part, and then put the band at white marked
position of the hose.
Fixingg screw
for draain pump
Hooking claw
for drain pump
– 95 –
No. Part name
Procedure
Remarks
12
Heat
exchanger
1. Detachment
1) Recover refrigerant gas.
2) Remove the refrigerant pipe at indoor unit
side.
Pipingg cover
3) Perform work of procedure 10 -1.
4) Take off screws (Ø4 × 10, 3 pcs.) fixing the
piping cover to remove the piping cover.
5) While holding the heat exchanger, remove
fixing band and fixing screws (Ø4 × 10, 3 pcs.)
and then remove the heat exchanger.
2. Attachment
1) Mount parts in order, heat exchanger
→ fixing band → piping cover → drain pan
→ bell mouth → electric parts box as original.
3 screws
NOTE)
Arrange wires as original.
2) Attach the removed connectors and wires as
original.
3) Connect the refrigerant pipe as original, and
then perform vacuuming.
Fixing band
Fixing band for
heat exchanger
<Details of sensor lead wire drawing>
TCJ sensor
(Black)
TC sensor
(Red)
Wind pipe cover over the header,
attach a sensor on it.
(Do not set the head of tie wrap upward.)
2 fixing screws for heat exchanger
– 96 –
10-2. Concealed DuctType
RAV-SM
BT
∗∗∗ ∗
Be sure to turn off the power supply or circuit breaker before disassembling work
No. Part name Procedure
Remarks
Electrical parts 1. Remove the air filter.
Screws
(Fixing electrical parts cover and box)
box
2. Remove the set screws (2 positions) of the
Electrical parts cover
electrical parts cover.
3. Remove the electrical parts cover.
4. Remove the set screws (2 positions) of the
electrical parts box.
5. Remove the electrical parts box.
The electrical parts box is fixed to the main
unit with claws at the right side.
1 -2
1 -3
Lift up it once and pull toward you.
Then claws come off.
Screws
(Fixing electrical parts box and main unit)
Electrical parts box
In this time, remove connectors of TA sensor,
TC sensor and TCJ sensor if necessary.
1 -4
1 -5
Claw (Reverse side)
‚ Multi blade fan 1. Remove the air filter.
Hexagon head screws
(Fixing fan assembly and main unit)
2. Remove the connector of the fan motor P.C.
board.
3. Remove the hexagon head screw
(562: 2, 802, 1102, 1402 : 3 positions) of
fixing fan assembly and main unit.
4. Remove the fan assembly from main unit.
The fan assembly is fixed to the main unit
with claws (3 positions) at the upper side.
2 -3
Lift up it once and pull toward rear side.
Then claws come off.
5. Remove the set screws (4 positions) of
fixing fan case and fan cover.
6. Remove the fan cover.
7. Loosen the sets crew of the Multi blade fan
using hexagon wrench.
2 -4
8. Pull the Multi blade fan towered fan case
side.
Fixing claw (Main unit)
Fixing hole (Fan assembly)
Then fans come off.
Multi blade fan
Fan case
Fan case cover
Set screw
2 -5
2 -6
Screws (Fixing fan case cover)
– 97 –
No.
Part name
Procedure
Remarks
ƒ Fan motor
1. Remove the Multi blade fan.
2. Remove the hexagon head screw of fixing
fan motor holder.
Fan motor
Fan motor holder
3. Remove the fan motor holder
(2 positions).
3 -2
3 -3
Screws
(Fixing fan motor holder)
„ Drain pan
1. Take down the main unit and then treat the
drain pan on the floor.
Screws (Fixing lower plate)
2. Remove the set screws (562 : 7, 802, 1102,
1402 : 9 positions) of fixing lower plate.
4 -2
4 -3
3. Remove the lower plate from main unit.
4. Remove the set screws (562 : Nothing, 802 :
2 positions, 1102, 1402 : 4 positions) of
fixing drain pan holder and main unit.
5. Remove the drain pan holder (562 : Nothing,
802 : 1 position, 1102, 1402 : 2 positions)
from main unit.
Lower plate
Screws
(Fixing drain pan holder)
6. Remove the drain pan.
Pull it lower side.
Screws (Fixing drain pan holder)
4 -4
4 -5
Drain pan holder Drain pan
ꢀ Float switch
1. Remove the drain pan.
2. Remove the set screw (1 position) of fixing
float switch holder.
Float switch holder
Float switch
3. Remove the plastics nut of foxing float
switch.
4. Remove the float switch.
5 -2
Screw
(Fixing float switch holder)
Float switch (View from reverse side)
5 -3
Float switch holder
Plastic nut
– 98 –
No.
Part name
Procedure
Remarks
† Drain pump
1. Remove the drain pan and float switch.
2. Remove the set screws (3 positions) of
fixing drain pump plate and main unit.
Drain pump
Drain pump holder
3. Remove the set screws (3 positions) of
fixing drain pump plate and drain pump.
6 -2
Screws (Fixing drain pump holder)
Screws (Fixing plate and drain pump)
6 -3
Drain pump holder
(6) -3. View from reverse side of drain pump
Checking port cover (Right side)
‡ TC, TCJ sensor 1. Remove the set screws (5 positions) and
check port cover (right side).
2. Pull out the sensor is inserted into pipe of
the heat exchanger.
7 -1
Screws (Fixing check port cover (Right side))
Check port cover (Left side)
ˆ Heat
exchanger
1. Take down the main unit and then treat the
heat exchanger on the floor.
2. Remove the drain pan.
3. Remove the check port cover (right side).
4. Remove the set screws (6 positions) and
check port cover (left side).
5. Remove the set screws (2 positions) of
fixing heat exchanger and main unit
(left side).
6. Remove the set screws (7 positions) of
fixing heat exchanger and main unit
(front right side).
8 -4
Screws (Fixing check port cover (Left side))
Screws (Fixing heat exchanger)
8 -5
Main unit (Left side)
Main unit (Front side)
8 -6
Screws
– 99 –
10-3. CeilingType
RAV-SM
CT
∗∗∗ ∗
Be sure to turn off the power supply or circuit breaker before disassembling work
No. Part name Procedure
Remarks
Suction grille 1. Remove the screws of air intake
Pull out suction grille
while pushing hook.
grille fixing knob on a side of each
filter.
Hinge
2. Slide the suction grille fixing knobs
(2 positions) toward the arrow
direction of left figure, and open
the suction grille.
3. Under the condition of the suction
grille opened, push the hook
section of hinges (2 positions) at
the rear side, and then pull out the
suction grille.
Suction grille
fixing knob
Suction grille
Protector
‚ Side panel
1. Open the suction grille.
2. After removing the side panel
screws (2 positions), slide the side
panel forward and then remove it.
Side panel
Level flap
Slide forward.
ƒ Electrical
1. Remove the suction grille.
Electrical parts cover
parts box
2. Loosen the set screws
(2 positions) of the electrical parts
cover.
3. Remove the electrical parts cover.
4. Remove the set screws
(2 positions) of the electrical parts
box.
3 -2
3 -3
5. Remove the electrical parts box.
Screws
(Fixing electrical parts cover and box)
In this time, remove connectors of TA
sensor, TC sensor and TCJ sensor if
necessary.
3 -4
3 -5
Electrical parts box
Screws
(Fixing electrical parts box and main unit)
– 100 –
No.
Part name
Procedure
Remarks
„ Multi blade fan 1. Remove the suction grille.
Screws
(Fixing reinforcing bar and main unit)
motor
2. Remove the connector of the fan
motor from P.C. board.
3. (SM802, SM1102, SM1402CT-E only)
Remove the set screw (1 position) to
fixing and reinforcing bar.
(Slide the reinforcing bar toward
arrow side on the left figure.)
4. Push the fan cover fixing hooks
(2 positions) forward fan cover side
and remove the fan cover.
4 -3
4 -4
4 -5
5. (SM1102, SM1402CT-E only)
Reinforcing bar
Remove the hexagon head screws (2
positions) to fix bearing and the
bearing.
6. Remove the hexagon head screw of
fixing fan motor and fan motor holder
then the assembly removed from the
main unit.
7. Loosen the sets crew of the multi
blade fan using hexagon wrench.
8. Pull the multi blade fan towered fan
case side. Then fans come off.
Fan cover fixing hook
Fan cover (Lower side)
Bearing
Hexagon head screws
(Fixing bearing and main unit)
Fan motor holder
Fan motor
4 -6
Hexagon screws
(Fixing fan motor and main unit)
4 -7
Multi blade fan
Set screw of multi blade fan
– 101 –
No.
Part name
Procedure
Remarks
ꢀ Drain pan
1. Take down the main unit and then treat
the drain pan on the floor.
Screws
(Fixing lower plate and main unit)
2. Remove the both side panels and suction
grilles.
3. (SM802, SM1102, SM1402CT-E only)
Remove the set screw (1 position) to
fixing and reinforcing bar.
(Slide the reinforcing bar toward arrow
side on the right figure.)
5 -4
4. Remove the set screws (9 positions) of
fixing lower plate.
Heat insulation
The screw that fixed drain pan and
main unit is under this insulation.
5. Remove the heat insulation on the drain
pan.
(SM562, SM802 : 1 position, SM1102,
SM1402 : 2 positions)
6. Remove the set screws
(SM562, SM802 : 1 position, SM1102,
SM1402 : 2 positions) of fixing drain pan
and main unit.
7. Remove the drain pan.
Pull it lower side.
5 -5
5 -6
† Vertical grille
1. Remove the drain pan.
2. Remove the set screws (2 positions) of
fixing vertical grille.
Vertical grille
3. Remove the vertical grille.
Screws
6 -2
(Fixing drain pan and vertical grille)
‡ Louver motor,
Lover drive
1. Remove the side cover (right side only).
2. Remove the set screws (2 positions) and
louver motor.
Screws
(Fixing louver drive member and main unit)
member
3. Remove the set screws (2 positions) and
louver drive member.
Louver drive
member
Louver
motor
7 -3
Screws
(Fixing louver motor and louver drive member)
– 102 –
No.
Part name
Procedure
Remarks
ˆ Horizontal
1. Push the louver holder toward arrow
direction of right figure, and pull out
the center shaft (SM562, SM802 :
1 position, SM1102, SM1402 :
louver
2 positions) from louver holder.
2. Pull off the left and right chaft of
horizontal louver.
8 -1
Louver holder
Screws
Shaft of
horizontal louver
‰ TC, TCJ sensor 1. Remove the drain pan.
2. Remove the set screws (4 positions)
(Fixing heat exchanger support)
and heat exchanger support.
3. Pull out the sensor is inserted into
pipe of the heat exchanger.
9 -3
Heat exchanger support
Heat exchanger
Š Heat
exchanger
1. Take down the main unit and then
treat the heat exchanger on the floor.
2. Remove the drain pan.
3. Remove the set screws (6 positions)
of fixing heat exchanger and main
unit.
10 -3
Screws
(Fixing heat exchanger and main unit)
– 103 –
11. EXPLODED VIEWS AND PARTS LIST
11-1. Compact 4-way CassetteType
RAV-SM404MUT , RAV-SM454MUT , RAV-SM564MUT
∗
∗
∗
234
223
202
221
203
231
228
201
209
236
235
241
205
247
233
237
222
224
242
226
241
225
227
230
238,
239
211
219 216 217
– 104 –
Model name RAV-SM
Location
No.
Part No.
Description
404MUT-E 454MUT-E 564MUT-E
201
202
203
205
209
211
213
215
216
217
219
220
221
222
223
224
225
226
227
228
230
231
233
234
235
236
237
238
239
240
241
242
247
43120225 FAN, ASSY TURBO
43122094 BELLMOUTH
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
3
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
3
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
3
1
1
1
1
1
3
43172185 PAN ASSY, DRAIN
43121738 MOTOR, FAN
4314J329 REFRIGERATION CYCLE ASSY
4314Q034 DISTRIBUTOR ASSY
43047685 NUT, FLARE, 1/4 IN
43149351 SOCKET
43047688 NUT, FLARE, 1/2, IN
43149353 SOCKET
43147195 BONNET, 1/2 IN
43049697 BONNET
43170244 HOSE, DRAIN
43079249 BAND, HOSE
43060029 FILTER,N0ISE
43163052 HOLDER, LEAD, FAN MOTOR
43119482 COVER, ASSY BODY
43170248 HOSE, DRAIN
43119483 COVER, PIPE
43097212 NUT
43019904 HOLDER, SENSOR (TS)
43179135 BAND, HOSE
43139137 RUBBER, CUSHION
43162056 COVER, E-BOX
43177001 PUMP, DRAIN
43151289 SWITCH, FLOAT
43179126 RUBBER, PUMP DRAIN
43166011 REMOTE CONTROLLER, SX-A4EE
43166012 REMOTE CONTROLLER, SX-A5EE
43166004 REMOTE CONTROLLER, SX-A11JE2
43166006 REMOTE CONTROLLER, WH-H1JE2
431S8221 OWNER'S MANUAL
43197155 WASHER
– 105 –
Model name RAV-SM
Location
No.
Part No.
Description
404MUT-TR 454MUT-TR 564MUT-TR
201
202
203
205
209
211
213
215
216
217
219
220
221
222
223
224
225
226
227
228
230
231
233
234
235
236
237
238
239
240
241
242
247
43120225 FAN, ASSY TURBO
43122094 BELLMOUTH
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
3
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
3
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
3
1
1
1
1
1
3
43172185 PAN ASSY, DRAIN
43121738 MOTOR, FAN
4314J329 REFRIGERATION CYCLE ASSY
4314Q034 DISTRIBUTOR ASSY
43047685 NUT, FLARE, 1/4 IN
43149351 SOCKET
43047688 NUT, FLARE, 1/2, IN
43149353 SOCKET
43147195 BONNET, 1/2 IN
43049697 BONNET
43170244 HOSE, DRAIN
43079249 BAND, HOSE
43060029 FILTER,N0ISE
43163052 HOLDER, LEAD, FAN MOTOR
43119482 COVER, ASSY BODY
43170248 HOSE, DRAIN
43119483 COVER, PIPE
43097212 NUT
43019904 HOLDER, SENSOR (TS)
43179135 BAND, HOSE
43139137 RUBBER, CUSHION
43162056 COVER, E-BOX
43177001 PUMP, DRAIN
43151289 SWITCH, FLOAT
43179126 RUBBER, PUMP DRAIN
43166011 REMOTE CONTROLLER, SX-A4EE
43166012 REMOTE CONTROLLER, SX-A5EE
43166004 REMOTE CONTROLLER, SX-A11JE2
43166006 REMOTE CONTROLLER, WH-H1JE2
431S8222 OWNER'S MANUAL
43197155 WASHER
– 106 –
Electric parts
401
405
403
404
402
Model name RAV-SM
Location
No.
Part No.
Description
404MUT-E 454MUT-E 564MUT-E
(TR)
(TR)
(TR)
401
402
403
404
405
43050425 SENSOR ASSY, SERVICE, TC
43050426 SENS0R, SERVICE, TA
4316V461 PC BOARD ASSY, MCC-1402
43160568 TERMINAL, 2P
2
1
1
1
1
2
1
1
1
1
2
1
1
1
1
43160565 TERMINAL BLOCK, 3P, 20A
– 107 –
11-2. Concealed DuctType
RAV-SM564BT-E, RAV-SM564BT-TR
240,
241
242
229
207
216
227
239
202
203, 902, 905
204, 206, 906
226
223
231
217
232
228
215
238
236,
237
234
– 108 –
Model name
Location
No.
Part No.
Description
RAV-SM564BT-E RAV-SM564BT-TR
202
203
204
206
207
215
216
217
223
226
227
228
229
231
232
234
236
237
238
239
240
241
242
902
905
906
43019904 HOLDER, SENSOR (TS)
43047692 BONNET
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
43047685 NUT, FLARE, 1/4 IN
43049697 BONNET
43079249 BAND, HOSE
43120239 FAN, MULTI BLADE
43121747 PUMP ASSY, WIRING
4312C021 MOTOR, FAN
4314Q015 DISTRIBUTOR ASSY
4314J268 REFRIGERATION CYCLE ASSY
43151294 SWITCH, FLOAT
43160553 LEAD, MOTOR, FAN
43170233 HOSE, DRAIN
43172168 PAN ASSY, DRAIN
43179110 PLUG
43180311 AIR FILTER
43166011 REMOTE CONTROLLER, SX-A4EE
43166012 REMOTE CONTROLLER, SX-A5EE
43166004 REMOTE CONTROLLER, SX-A11JE2
43166006 REMOTE CONTROLLER, WH-H1JE2
431S8224 OWNER'S MANUAL
431S8223 OWNER'S MANUAL
43196012 BUSHING
1
2
2
1
1
2
2
1
1
43149351 SOCKET
43047688 NUT, FLARE, 1/2, IN
43149353 SOCKET
– 109 –
RAV-SM804BT-E, RAV-SM804BT-TR
230
221
204
228,
229
211
219
202
203, 904, 905
901, 902, 903
222
218
235
216
212
223
220
210
232,
233
234
224
– 110 –
Model name
Location
No.
Part No.
Description
RAV-SM804BT-E RAV-SM804BT-TR
202
203
204
210
211
212
216
218
219
220
221
222
223
224
228
229
230
232
233
234
235
901
902
903
904
905
43019904 HOLDER, SENSOR (TS)
43047609 BONNET
2
1
1
2
1
1
1
1
1
1
1
1
1
2
2
1
1
2
1
1
1
1
1
1
1
1
1
2
1
43079249 BAND, HOSE
43120239 FAN, MULTI BLADE
43121747 PUMP ASSY, WIRING
4312C020 MOTOR, FAN
4314Q016 DISTRIBUTOR ASSY
4314J269 REFRIGERATION CYCLE ASSY
43151294 SWITCH, FLOAT
43160553 LEAD, MOTOR, FAN
43170233 HOSE, DRAIN
43172167 PAN ASSY, DRAIN
43179110 PLUG
43180312 AIR FILTER
431S8224 OWNER'S MANUAL
431S8223 OWNER'S MANUAL
43196012 BUSHING
1
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
43166011 REMOTE CONTROLLER, SX-A4EE
43166012 REMOTE CONTROLLER, SX-A5EE
43166004 REMOTE CONTROLLER, SX-A11JE2
43166006 REMOTE CONTROLLER, WH-H1JE2
43049776 SOCKET
43194029 BONNET
43149355 NUT, FLARE, 3/8, IN
43149352 NUT, FLARE, 5/8, IN
43149354 SOCKE
– 111 –
RAV-SM1104BT-E, RAV-SM1404BT-E,
RAV-SM1104BT-TR, RAV-SM1404BT-TR
230, 231
232
204
223
211
220
221
237
215
202
214
203, 904
213
901, 902, 903
219
224
236
212
225
222
210
234, 235
226
– 112 –
Model name RAV-SM
Location
No.
Part No.
Description
1104BT-E 1404BT-E 1104BT-TR 1404BT-TR
202
203
204
210
211
212
213
214
215
219
220
221
222
223
224
225
226
230
231
232
234
235
236
237
901
902
903
904
43019904 HOLDER, SENSOR (TS)
43047609 BONNET
2
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
2
1
43079249 BAND, HOSE
43120239 FAN, MULTI BLADE
43121747 PUMP ASSY, WIRING
4312C021 MOTOR, FAN
43125131 BEARING, SHAFT
43125162 COUPLING
43125163 SHAFT
4314Q017 DISTRIBUTOR ASSY
4314J270 REFRIGERATION CYCLE ASSY
43151294 SWITCH, FLOAT
43160553 LEAD, MOTOR, FAN
43170233 HOSE, DRAIN
43172166 PAN ASSY, DRAIN
43179110 PLUG
43180311 AIR FILTER
431S8224 OWNER'S MANUAL
431S8223 OWNER'S MANUAL
43196012 BUSHING
1
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
43166011 REMOTE CONTROLLER, SX-A4EE
43166012 REMOTE CONTROLLER, SX-A5EE
43166004 REMOTE CONTROLLER, SX-A11JE2
43166006 REMOTE CONTROLLER, WH-H1JE2
43049776 SOCKET
43194029 BONNET
43149355 NUT, FLARE, 3/8, IN
43149352 NUT, FLARE, 5/8, IN
– 113 –
Electric parts
405
407
404
406
Model name RAV-SM
Location
Part No.
Description
564BT-E 804BT-E 1104BT-E 1404BT-E
No.
(TR)
(TR)
(TR)
(TR)
401
402
403
404
405
406
407
43050425 SENSOR ASSY, SERVICE, TC6
43050426 SENSOR, SERVICE, TA
43158193 REACTOR, CH-43-2Z-T
43160565 TERMINAL BLOCK, 3P, 20A
4316V462 PC BOARD ASSY, MCC-1402
43155203 CAPACITOR KIT, SERVICE
43160568 TERMINAL, 2P
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
– 114 –
11-3. CeilingType
RAV-SM564CT , RAV-SM804CT , RAV-SM1104CT , RAV-SM1404CT
∗
∗
∗
∗
248
247
266
201, 202, 203
244, 245, 246
260
211
261
258
222, 223, 224
263
264
236, 237, 238,
239, 254, 255
242
233, 234, 235,
253, 256, 257
240
226
267
210
214
217
225
231
232
249
259,
268
252
207, 208, 209
204, 205, 206
265
227, 228
227
229
251
250
230
212
226
262
212, 213
226
232
216
215
217
41
43
2172
225
225
SM56(Fan assembly)
SM80(Fan assembly)
221
218, 219
220
– 115 –
Model name RAV-SM
Location
No.
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
269
270
271
Part No.
Description
564CT-E
804CT-E
1104CT-E
1404CT-E
4314J271 REFRIGERATION CYCLE A'SSY
4314J272 REFRIGERATION CYCLE A'SSY
4314J367 REFRIGERATION CYCLE ASSY
43172188 PAN DRAIN, ASS'Y
43172189 PAN DRAIN, ASS'Y
43172190 PAN DRAIN, ASS'Y
43100356 PANEL, UNDER
1
1
1
1
1
1
1
1
1
1
43100357 PANEL, UNDER
43100358 PANEL, UNDER
1
1
1
1
2
1
1
1
1
1
2
1
43102647 COVER, SIDE (RIGHT)
43102648 COVER, SIDE (LEFT)
43109407 GRILLE, INLET
1
1
2
1
1
43109408 GRILLE, INLET
2
43121741 MOTOR, FAN
43121742 MOTOR, FAN
1
43121743 MOTOR, FAN
1
3
1
1
1
1
43120227 FAN, MULTI BLADE
43166011 REMOTE CONTROLLER, SX-A4EE
43166012 REMOTE CONTROLLER, SX-A5EE
43166004 REMOTE CONTROLLER, SX-A11JE2
43166006 REMOTE CONTROLLER, WH-H1JE2
4314Q090 DISTRIBUTOR ASSY
43147701 DISTRIBUTOR A'SSY
43147702 DISTRIBUTOR A'SSY
43122084 CASE, FAN, LOWER
43122085 CASE, FAN, UPPER
43180314 AIR FILTER
2
1
1
1
1
1
4
1
1
1
1
4
1
1
1
1
1
1
4
4
1
2
1
2
1
1
1
4
4
1
2
1
2
1
1
2
2
2
3
3
43180315 AIR FILTER
2
1
2
43108014 BASE, RECEIVER
43179136 BAND, HOSE
1
2
43125131 BEARING, SHAFT
43125162 COUPLING
1
1
43047685 NUT, FLARE, 1/4 IN
43049776 SOCKET
1
1
1
43149351 SOCKET
1
1
43047688 NUT, FLARE, 1/2, IN
43149352 NUT, FLARE, 5/8, IN
43149353 SOCKET
1
1
1
1
1
43149354 SOCKET\
1
1
1
1
1
1
1
43149326 COVER, BACK BASE
43125164 SHAFT
43125165 SHAFT
43125159 BEARING
1
1
1
1
43109409 GRILLE A'SSY, HORIZONTAL
43109410 GRILLE A'SSY, HORIZONTAL
43109411 GRILLE A'SSY, HORIZONTAL
43107260 SUPPORT, GRILLE HORIZONTAL
43122086 GRILLE A'SSY, VERTICAL
43179129 CAP DRAIN
1
1
2
3
1
6
3
1
1
1
2
3
1
6
3
1
1
1
2
1
4
2
1
1
2
1
4
2
1
1
43107254 HINGE, GRILLE INLET
43107255 HOOK, GRILLE INLET
43170234 HOSE, DRAIN
43047609 BONNET
43047692 BONNET
1
43194029 BONNET
1
1
1
1
1
1
43149355 NUT, FLARE, 3/8, IN
43049697 BONNET
1
2
1
1
1
1
1
1
1
1
43019904 HOLDER, SENSOR (TS)
431S8225 OWNER'S MANUAL
43121746 DRIVER A'SSY HORIZONTAL LOUVER
43160556 LEAD, LOUVER HORIZONTAL
43108016 MARK TOSHIBA
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
2
1
2
3
3
3
2
1
1
1
1
1
1
2
1
2
3
3
3
43162049 BUSHING 50DIA
43162050 BUSHING 56DIA
43197189 SCREW, FIX DRAIN PAN
43107252 SHAFT, HOLIZONTAL LOUVER
43139153 SPACER, BEARING
43107285 HOOK, GRILLE INLET
43197202 NUT, FLANGE
2
2
2
2
2
2
43197203 SCREW, PAINT, M3
– 116 –
Model name RAV-SM
Location
No.
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
260
261
262
263
264
265
266
267
268
269
270
271
Part No.
Description
564CT-TR 804CT-TR 1104CT-TR 1404CT-TR
4314J271 REFRIGERATION CYCLE A'SSY
4314J272 REFRIGERATION CYCLE A'SSY
4314J367 REFRIGERATION CYCLE ASSY
43172188 PAN DRAIN, ASS'Y
43172189 PAN DRAIN, ASS'Y
43172190 PAN DRAIN, ASS'Y
43100356 PANEL, UNDER
1
1
1
1
1
1
1
1
1
1
43100357 PANEL, UNDER
43100358 PANEL, UNDER
1
1
1
1
2
1
1
1
1
1
2
1
43102647 COVER, SIDE (RIGHT)
43102648 COVER, SIDE (LEFT)
43109407 GRILLE, INLET
1
1
2
1
1
43109408 GRILLE, INLET
2
43121741 MOTOR, FAN
43121742 MOTOR, FAN
1
43121743 MOTOR, FAN
1
3
1
1
1
1
43120227 FAN, MULTI BLADE
43166011 REMOTE CONTROLLER, SX-A4EE
43166012 REMOTE CONTROLLER, SX-A5EE
43166004 REMOTE CONTROLLER, SX-A11JE2
43166006 REMOTE CONTROLLER, WH-H1JE2
4314Q090 DISTRIBUTOR ASSY
43147701 DISTRIBUTOR A'SSY
43147702 DISTRIBUTOR A'SSY
43122084 CASE, FAN, LOWER
43122085 CASE, FAN, UPPER
43180314 AIR FILTER
2
1
1
1
1
1
4
1
1
1
1
4
1
1
1
1
1
1
4
4
1
2
1
2
1
1
1
4
4
1
2
1
2
1
1
2
2
2
3
3
43180315 AIR FILTER
2
1
2
43108014 BASE, RECEIVER
43179136 BAND, HOSE
1
2
43125131 BEARING, SHAFT
43125162 COUPLING
1
1
43047685 NUT, FLARE, 1/4 IN
43049776 SOCKET
1
1
1
43149351 SOCKET
1
1
43047688 NUT, FLARE, 1/2, IN
43149352 NUT, FLARE, 5/8, IN
43149353 SOCKET
1
1
1
1
1
43149354 SOCKET\
1
1
1
1
1
1
1
43149326 COVER, BACK BASE
43125164 SHAFT
43125165 SHAFT
43125159 BEARING
1
1
1
1
43109409 GRILLE A'SSY, HORIZONTAL
43109410 GRILLE A'SSY, HORIZONTAL
43109411 GRILLE A'SSY, HORIZONTAL
43107260 SUPPORT, GRILLE HORIZONTAL
43122086 GRILLE A'SSY, VERTICAL
43179129 CAP DRAIN
1
1
2
3
1
6
3
1
1
1
2
3
1
6
3
1
1
1
2
1
4
2
1
1
2
1
4
2
1
1
43107254 HINGE, GRILLE INLET
43107255 HOOK, GRILLE INLET
43170234 HOSE, DRAIN
43047609 BONNET
43047692 BONNET
1
43194029 BONNET
1
1
1
1
1
1
43149355 NUT, FLARE, 3/8, IN
43049697 BONNET
1
2
1
1
1
1
1
1
1
43019904 HOLDER, SENSOR (TS)
43121746 DRIVER A'SSY HORIZONTAL LOUVER
43160556 LEAD, LOUVER HORIZONTAL
43108016 MARK TOSHIBA
2
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
2
1
3
3
3
2
1
1
1
1
1
2
1
2
1
3
3
3
43162049 BUSHING 50DIA
43162050 BUSHING 56DIA
43197189 SCREW, FIX DRAIN PAN
43107252 SHAFT, HOLIZONTAL LOUVER
43139153 SPACER, BEARING
431S8225 OWNER'S MANUAL
43107285 HOOK, GRILLE INLET
43197202 NUT, FLANGE
1
2
2
2
1
2
2
2
43197203 SCREW, PAINT, M3
– 117 –
Electric parts
403
401
406
402
405
404
407
Model name RAV-SM
Location
Part No.
Description
564CT-E 804CT-E 1104CT-E 1404CT-E
No.
(TR)
(TR)
(TR)
(TR)
401
402
403
404
405
406
407
43050425 SENSOR ASSY, SERVICE, TC
43050426 SENSOR, SERVICE, TA
43158193 REACTOR, CH-43-2Z-T
43160565 TERMINAL BLOCK, 3P, 20A
4316V461 PC BOARD ASSY, MCC-1402
43155203 CAPACITOR KIT, SERVICE
43160568 TERMINAL, 2P
2
1
1
1
1
1
1
2
1
1
1
1
1
1
2
1
1
1
1
1
1
2
1
1
1
1
1
1
– 118 –
WARNINGS ON REFRIGERANT LEAKAGE
Check of Concentration Limit
Important
The room in which the air conditioner is to be
installed requires a design that in the event of
refrigerant gas leaking out, its concentration will
not exceed a set limit.
The refrigerant R410A which is used in the air
conditioner is safe, without the toxicity or combustibility
of ammonia, and is not restricted by laws to be imposed
which protect the ozone layer.
NOTE 2 :
The standards for minimum room volume are as follows.
(1) No partition (shaded portion)
However, since it contains more than air, it poses the
risk of suffocation if its concentration should rise
excessively. Suffocation from leakage of R410A is
almost non-existent.
With the recent increase in the number of high
concentration buildings, however, the installation of
multi air conditioner systems is on the increase because
of the need for effective use of floor space, individual
control, energy conservation by curtailing heat and
carrying power etc.
(2) When there is an effective opening with the adjacent
room for ventilation of leaking refrigerant gas
(opening without a door, or an opening 0.15% or
larger than the respective floor spaces at the top or
bottom of the door).
Outdoor unit
Most importantly, the multi air conditioner system is able
to replenish a large amount of refrigerant compared with
conventional individual air conditioners.
Refrigerant piping
Indoor unit
If a single unit of the multi conditioner system is to be
installed in a small room, select a suitable model and
installation procedure so that if the refrigerant
accidentally leaks out, its concentration does not reach
the limit (and in the event of an emergency, measures
can be made before injury can occur).
In a room where the concentration may exceed the limit,
create an opening with adjacent rooms, or install
mechanical ventilation combined with a gas leak
detection device.
(3) If an indoor unit is installed in each partitioned room
and the refrigerant piping is interconnected, the
smallest room of course becomes the object.
But when a mechanical ventilation is installed
interlocked with a gas leakage detector in the smallest
room where the density limit is exceeded, the volume
of the next smallest room becomes the object.
The concentration is as given below.
Refrigerant piping
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m³)
≤ Concentration limit (kg/m³)
Outdoor unit
Very
small
Indoor unit
room
The concentration limit of R410A which is used in multi
air conditioners is 0.3kg/m³.
Small
room
Medium
room
Large room
NOTE 1 :
Mechanical ventilation device - Gas leak detector
If there are 2 or more refrigerating systems in a single
refrigerating device, the amounts of refrigerant should
be as charged in each independent device.
NOTE 3 :
The minimum indoor floor area compared with the
amount of refrigerant is roughly as follows:
(When the ceiling is 2.7m high)
Outdoor unit
e.g., charged
e.g.,
amount (10kg)
charged amount (15kg)
40
Range below the
35
m²
density limit
of 0.3 kg/m³
30
25
20
15
10
5
(countermeasures
not needed)
Room A Room B Room C Room D Room E Room F
Indoor unit
Range above
the density limit
of 0.3 kg/m³
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in rooms
A, B and C is 10kg.
The possible amount of leaked refrigerant gas in rooms
D, E and F is 15kg.
(countermeasures
needed)
0
10
20
30
Total amount of refrigerant
kg
TOSHIBA CARRIER CORPORATION
23-17, TAKANAWA 3 CHOME, MINATOKU, TOKYO, 108-8580, JAPAN
Copyright © 1999 to 2010 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.
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