Toshiba Air Conditioner Rav Sm566krt Tr User Manual
FILE NO. SVM-12004  
SERVICE MANUAL  
AIR-CONDITIONER  
SPLIT TYPE  
INDOOR UNIT  
High Wall Type  
RAV-SM566KRT-E, RAV-SM806KRT-E  
RAV-SM566KRT-TR, RAV-SM806KRT-TR  
R410A  
FILE NO. SVM-12004  
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  
• 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.  
Qualified installer  
• 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.  
• 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.  
• 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.  
Qualified service  
person  
• 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.  
– 3 –  
FILE NO. SVM-12004  
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  
Clothing to provide protection from electric shock  
Electrical-related work  
Work done at heights  
(50 cm or more)  
Helmets for use in industry  
Transportation of heavy objects  
Repair of outdoor unit  
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.  
– 4 –  
FILE NO. SVM-12004  
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  
ELECTRICAL SHOCK HAZARD  
Disconnect all remote electric power supplies before servicing.  
WARNING  
Moving parts.  
Do not operate unit with grille removed.  
Stop the unit before the servicing.  
CAUTION  
High temperature parts.  
You might get burned when removing this panel.  
CAUTION  
Do not touch the aluminium fins of the unit.  
Doing so may result in injury.  
CAUTION  
BURST HAZARD  
Open the service valves before the operation, otherwise there might be the  
burst.  
– 5 –  
FILE NO. SVM-12004  
Precautions for safety  
The manufacturer shall not assume any liability for the damage caused by not observing the description of this  
manual.  
DANGER  
Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker for  
both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may result.  
Before opening the front panel 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 front panel of the indoor  
unit or service panel of the outdoor unit and do the work required.  
Turn off  
breaker.  
Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit 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.  
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 control 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  
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.  
Execute  
discharge  
between  
terminals.  
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.  
– 6 –  
FILE NO. SVM-12004  
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.  
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.  
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.  
When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and other  
protective clothing.  
Inside the air conditioner are high-voltage areas and rotating parts. Due to the danger of electric shocks or of  
your fingers or physical objects becoming trapped in the rotating parts, do not remove the front panel of the  
indoor unit or service panel of the outdoor unit. When work involving the removal of these parts is required,  
contact a qualified installer(*1) or a qualified service person(*1).  
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.  
When checking the electrical parts, removing the cover of the electrical control box of Indoor Unit and/or service  
panel of Outdoor Unit inevitably to determine the failure, use gloves to provide protection for electricians and  
from heat, insulating shoes, clothing to provide protection from electric shock and insulating tools. Do not touch  
the live part. Electric shock may result. Only "Qualified service person (*1)" is allowed to do this work.  
When checking the electrical parts, removing the cover of the electrical control box of Indoor Unit and/or front  
panel of Outdoor Unit inevitably to determine the failure, put a sign "Do not enter" around the site before the  
work. Failure to do this may result in third person getting electric shock.  
General  
Electrical wiring work shall be conducted according to law and regulation in the community and installation  
manual. Failure to do so may result in electrocution or short circuit.  
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 front panel of the indoor unit to undertake work.  
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.  
While carrying out the work, wear a helmet for protection from falling objects.  
Wear protective gloves and safety work clothing during installation, servicing and removal.  
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.  
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.  
This air conditioner has passed the pressure test as specified in IEC 60335-2-40 Annex EE.  
– 7 –  
FILE NO. SVM-12004  
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 of any parts which do not satisfy the required specifications may give rise to electric shocks, smoking and/  
or a fire.  
Use specified  
parts.  
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with  
the electrical control 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, put a sign in place so that no-one will approach the  
work location before proceeding with the work. Third-party individuals may enter the work site and receive  
electric shocks if this warning is not heeded.  
Do not bring a  
child close to  
the  
equipment.  
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. When using it without ventilation, carbon monoxide poisoning may  
be caused.  
No fire  
3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the  
inflammables.  
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.  
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.  
Refrigerant  
In this time, never charge the refrigerant over the specified amount.  
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.  
– 8 –  
FILE NO. SVM-12004  
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 /  
Wiring  
After the work has finished, be sure to use an insulation tester set (500 V Megger) to check the resistance is  
1 MΩ or more between the charge section and the non-charge metal section (Earth position).  
If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side.  
Insulator  
check  
If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked refrigerant  
gas comes in contact with fire, noxious gas may generate.  
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.  
Before operating the air conditioner after having completed the work, check that the electrical control box cover  
of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON position.  
You may receive an electric shock if the power is turned on without first conducting these checks.  
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.  
Be sure to fix the screws back which have been removed for installation or other purposes.  
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 sucked 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.  
– 9 –  
FILE NO. SVM-12004  
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, 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.  
Cooling check  
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 2.0 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.  
Install a circuit breaker that meets the specifications in the installation manual and the stipulations in the local  
regulations and laws.  
Installation  
Install the circuit breaker where it can be easily accessed by the qualified service person (*1).  
If the unit is installed in a small room, take appropriate measures to prevent the refrigerant from exceeding the  
limit concentration even if it leaks. Consult the dealer from whom you purchased the air conditioner when you  
implement the measures. Accumulation of highly concentrated refrigerant may cause an oxygen deficiency  
accident.  
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.  
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”  
– 10 –  
FILE NO. SVM-12004  
Declaration of Conformity  
Manufacturer:  
Authorized  
TOSHIBA CARRIER (THAILAND) CO., LTD.  
144/9 Moo 5, Bangkadi Industrial Park, Tivanon Road,  
Amphur Muang, Pathumthani 12000, Thailand  
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-SM566KRT-E, RAV-SM806KRT-E  
RAV-SM566KRT-TR, RAV-SM806KRT-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.  
Specifications  
Sound power level (dBA)  
Weight (kg)  
Model  
Cooling  
Heating  
Main unit (Ceiling panel)  
RAV-SM566KRT-E  
✽
✽
✽
✽
✽
✽
✽
✽
12  
12  
12  
12  
RAV-SM806KRT-E  
RAV-SM566KRT-TR  
RAV-SM806KRT-TR  
✽ Under 70 dBA  
– 11 –  
FILE NO. SVM-12004  
1. SPECIFICATIONS  
1-1. High-wall type  
Indoor unit  
RAV-SM  
RAV-  
(kW)  
566KRT-E(TR)  
806KRT-E(TR)  
566KRT-E(TR)  
806KRT-E(TR)  
Model  
Outdoor unit  
SP564AT(Z)(ZG)-E SP804AT(Z)(ZG)-E  
SM563AT-E  
SM803AT-E  
Cooling Capacity  
Heating Capacity  
Power Supply  
5.0  
5.6  
7.1  
8.0  
5.0  
5.6  
6.7  
8.0  
(kW)  
1 phase 230V (220-240V) 50Hz  
Running current  
(A)  
6.74-6.18  
10.71-9.82  
7.77-7.12  
11.18-10.25  
Power consumption (kW)  
1.44  
2.21  
1.66  
2.37  
Power factor  
EER  
(%)  
99  
96  
98  
99  
Cooling  
3.47  
3.21  
3.01  
2.83  
Energy efficiency class ※  
Energy rating　※※  
A
A
B
C
-
6.98-6.40  
1.50  
99  
-
-
7.60-6.96  
1.64  
98  
-
Electrical  
Characteristics  
Running current  
(A)  
11.02-10.10  
11.88-10.89  
Power consumption (kW)  
2.34  
96  
2.49  
99  
Power factor  
COP  
(%)  
Heating  
3.73  
A
3.42  
B
3.41  
B
3.21  
C
Energy efficiency class ※  
Energy rating ※※  
(A)  
-
-
-
-
Maximum current  
Main unit  
13.4  
20.4  
12.3  
14.4  
Appearance  
Moon white  
Height  
Width  
Depth  
(mm)  
(mm)  
(mm)  
320  
1050  
228  
12  
320  
1050  
228  
12  
320  
1050  
228  
12  
320  
1050  
228  
12  
Outer dimension Main unit  
Main unit  
(kg)  
Total weight  
Heat exchanger  
Finned tube  
Cross flow fan  
Fan  
Fan unit  
Air filter  
Standard air flow  
Motor  
H/M/L  
(m3/min.)  
(W)  
14.0/12.5/11.0  
30  
17.0/12.5/11.0  
30  
14.0/12.5/11.0  
30  
17.0/12.5/11.0  
30  
Standard filter attached  
Controller (packed with inndoor unit)  
Controller (sold separately)  
Sound pressure level  
WH-L11SE  
RBC-AMT32E,AS21E2,AMS41E,AMS51E  
H/M/L  
(dB・A)  
(dB・A)  
(mm)  
42/39/36  
57/54/51  
12.7  
47/41/36  
62/56/51  
15.9  
42/39/36  
57/54/51  
12.7  
47/41/36  
62/56/51  
15.9  
Sound power level  
H/M/L  
Gas side  
Liquid side  
Drain port  
Connecting pipe  
(mm)  
6.4  
9.5  
6.4  
9.5  
(mm)  
VP16  
※IEC Standard　 ※※AS Standard  
– 12 –  
FILE NO. SVM-12004  
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)  
2-1. 4-Way Air Discharge CassetteType  
RAV-SM566KRT-E(TR)  
– 13 –  
FILE NO. SVM-12004  
RAV-SM806KRT-E(TR)  
– 14 –  
FILE NO. SVM-12004  
3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM  
High WallType  
• Single type (Combination of 1 indoor unit and 1 outdoor unit)  
(Indoor unit)  
Distributor  
(Strainer incorporated)  
TCJ sensor  
Air heat  
exchanger  
TC sensor  
Heating  
Cooling  
Refrigerant pipe  
at liquid side  
(Outer dia : ØB)  
Refrigerant pipe  
at gas side  
(Outer dia : ØA)  
To outdoor unit  
To outdoor unit  
Dimension table  
Outer diameter of refrigerant pipe (In (mm))  
Indoor unit  
Gas side ØA  
12.7  
Liquid side ØB  
SM56 type  
SM80 type  
6.4  
9.5  
15.9  
– 15 –  
FILE NO. SVM-12004  
4. WIRING DIAGRAM  
4-1. High Wall Type  
– 16 –  
FILE NO. SVM-12004  
5. SPECIFICATIONS OF ELECTRICAL PARTS  
5-3. High WallType  
No.  
Parts Name  
Fan motor (for indoor)  
Type  
Specications  
ICF-340-U30-1  
ICF-340-30X  
MF-340-30X  
1
Output (Rated) 30W, 340V DC  
2
3
Grille motor  
MP24Z3T  
318mm  
Output (Rated) 1W, 16 poles DC  
Thermo. Sensor (TA sensor)  
10kΩ at 25°C  
4
5
Heat exchanger sensor (TC sensor)  
Heat exchanger sensor (TCJ sensor)  
Ø6,800mm  
Ø6,800mm  
10kΩ at 25°C  
10kΩ at 25°C  
n Name of Each Part  
Air outlet / Louver  
Air inlet grille  
Change the direction of the air to be  
Air in the room is sucked from here.  
discharged according to cool/heat mode.  
Air filter  
Earth screw  
Removes dirt or dust.  
(Provided in the air inlet grille)  
Earth screws are provided  
in the electric parts box.  
TEMPORARY button  
– 17 –  
FILE NO. SVM-12004  
6. REFRIGERANT R410A  
This air conditioner adopts the new refrigerant HFC  
(R410A) which does not damage the ozone layer.  
6. When an air conditioning system charged with a  
large volume of refrigerant is installed in a small  
room, it is necessary to exercise care so that,  
even when refrigerant leaks, its concentration  
does not exceed the marginal level.  
The working pressure of the new refrigerant R410A  
is 1.6 times higher than conventional refrigerant  
(R22). The refrigerating oil is also changed in  
accordance with change of refrigerant, so be careful  
that water, dust, and existing refrigerant or refriger-  
ating oil are not entered in the refrigerant cycle of  
the air conditioner using the new refrigerant during  
installation work or servicing time.  
If the refrigerant gas leakage occurs and its  
concentration exceeds the marginal level, an  
oxygen starvation accident may result.  
7. Be sure to carry out installation or removal  
according to the installation manual.  
The next section describes the precautions for air  
conditioner using the new refrigerant.  
Improper installation may cause refrigeration  
trouble, water leakage, electric shock, fire, etc.  
Conforming to contents of the next section together  
with the general cautions included in this manual,  
perform the correct and safe work.  
8. Unauthorized modifications to the air conditioner  
may be dangerous.  
If a breakdown occurs please call a qualified air  
conditioner technician or electrician.  
6-1. SafetyDuringInstallation/Servicing  
Improper repair may result in water leakage,  
electric shock and fire, etc.  
As R410A’s pressure is about 1.6 times higher than  
that of R22, improper installation/servicing may  
cause a serious trouble. By using tools and materi-  
als exclusive for R410A, it is necessary to carry out  
installation/servicing safely while taking the follow-  
ing precautions into consideration.  
6-2. Refrigerant Piping Installation  
6-2-1. Piping Materials and Joints Used  
For the refrigerant piping installation, copper pipes  
and joints are mainly used. Copper pipes and joints  
suitable for the refrigerant must be chosen and  
installed. Furthermore, it is necessary to use clean  
copper pipes and joints whose interior surfaces are  
less affected by contaminants.  
1. Never use refrigerant other than R410A in an air  
conditioner which is designed to operate with  
R410A. If other refrigerant than R410A is mixed,  
pressure in the refrigeration cycle becomes  
abnormally high, and it may cause personal  
injury, etc. by a rupture.  
1. CopperPipes  
2. Confirm the used refrigerant name, and use  
tools and materials exclusive for the refrigerant  
R410A. The refrigerant name R410A is indicated  
on the visible place of the outdoor unit of the air  
conditioner using R410A as refrigerant.  
It is necessary to use seamless copper pipes  
which are made of either copper or copper alloy  
and it is desirable that the amount of residual oil  
is less than 40 mg/10 m.  
Do not use copper pipes having a collapsed,  
deformed or discolored portion (especially on the  
interior surface).  
To prevent mischarging, the diameter of the  
service port differs from that of R22.  
3. If a refrigeration gas leakage occurs during  
installation/servicing, be sure to ventilate fully.  
Otherwise, the expansion valve or capillary tube  
may become blocked with contaminants.  
If the refrigerant gas comes into contact with fire,  
a poisonous gas may occur.  
As an air conditioner using R410A incurs pres-  
sure higher than when using R22, it is necessary  
to choose adequate materials.  
4. When installing or removing an air conditioner,  
do not allow air or moisture to remain in the  
refrigeration cycle.  
Thicknesses of copper pipes used with R410A  
are as shown in Table 6-2-1.  
Otherwise, pressure in the refrigeration cycle  
may become abnormally high so that a rupture  
or personal injury may be caused.  
Never use copper pipes thinner than 0.8 mm  
even when it is available on the market.  
5. After completion of installation work, check to  
make sure that there is no refrigeration gas  
leakage. If the refrigerant gas leaks into the  
room, coming into contact with fire in the fan-  
driven heater, space heater, etc., a poisonous  
gas may occur.  
– 18 –  
FILE NO. SVM-12004  
Table 6-2-1 Thicknesses of annealed copper pipes  
Thickness (mm)  
Nominal diameter  
Outer diameter (mm)  
R410A  
0.80  
R22  
0.80  
0.80  
0.80  
1.00  
1/4  
3/8  
1/2  
5/8  
6.35  
9.52  
0.80  
12.70  
15.88  
0.80  
1.00  
2. Joints  
For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants.  
a) Flare Joints  
Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds  
20 mm. In such a case, socket joints can be used.  
Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables 6-2-3 to 6-2-6 below.  
b) Socket Joints  
Socket joints are such that they are brazed for connections, and used mainly for thick pipings whose  
diameter is larger than 20 mm.  
Thicknesses of socket joints are as shown in Table 6-2-2.  
Table 6-2-2 Minimum thicknesses of socket joints  
Reference outer diameter of  
copper pipe jointed (mm)  
Minimum joint thickness  
(mm)  
Nominal diameter  
1/4  
3/8  
1/2  
5/8  
6.35  
9.52  
0.50  
0.60  
0.70  
0.80  
12.70  
15.88  
6-2-2. ProcessingofPipingMaterials  
When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not  
enter the pipe interior, that no other oil than lubricating oils used in the installed air-water heat pump is used,  
and that refrigerant does not leak.  
When using lubricating oils in the piping processing, use such lubricating oils whose water content has been  
removed. When stored, be sure to seal the container with an airtight cap or any other cover.  
1. Flare processing procedures and precautions  
a) Cutting the Pipe  
By means of a pipe cutter, slowly cut the pipe so that it is not deformed.  
b) Removing Burrs and Chips  
If the flared section has chips or burrs, refrigerant leakage may occur.  
Carefully remove all burrs and clean the cut surface before installation.  
c) Insertion of Flare Nut  
– 19 –  
FILE NO. SVM-12004  
d) Flare Processing  
Make certain that a clamp bar and copper  
pipe have been cleaned.  
ØD  
By means of the clamp bar, perform the flare  
processing correctly.  
A
Use either a flare tool for R410A or conven-  
tional flare tool.  
Flare processing dimensions differ according  
to the type of flare tool.  
When using a conventional flare tool, be sure  
to secure “dimension A” by using a gauge for  
size adjustment.  
Fig. 6-2-1 Flare processing dimensions  
Table 6-2-3 Dimensions related to flare processing for R410A  
A (mm)  
Conventional flare tool  
Outer  
diameter  
(mm)  
Nominal  
diameter  
Thickness  
(mm)  
Flare tool for R410A  
clutch type  
Clutch type  
1.0 to 1.5  
1.0 to 1.5  
1.0 to 1.5  
1.0 to 1.5  
Wing nut type  
1.5 to 2.0  
1/4  
3/8  
1/2  
5/8  
6.35  
9.52  
0.8  
0.8  
0.8  
1.0  
0 to 0.5  
0 to 0.5  
0 to 0.5  
0 to 0.5  
1.5 to 2.0  
12.70  
15.88  
2.0 to 2.5  
2.0 to 2.5  
Table 6-2-4 Dimensions related to flare processing for R22  
A (mm)  
Outer  
diameter  
(mm)  
Nominal  
diameter  
Thickness  
(mm)  
Conventional flare tool  
Flare tool for R22  
clutch type  
Clutch type  
0.5 to 1.0  
0.5 to 1.0  
0.5 to 1.0  
0.5 to 1.0  
Wing nut type  
1.0 to 1.5  
1/4  
3/8  
1/2  
5/8  
6.35  
9.52  
0.8  
0.8  
0.8  
1.0  
0 to 0.5  
0 to 0.5  
0 to 0.5  
0 to 0.5  
1.0 to 1.5  
12.70  
15.88  
1.5 to 2.0  
1.5 to 2.0  
Table 6-2-5 Flare and flare nut dimensions for R410A  
Dimension (mm)  
Nominal  
diameter  
Outer diameter  
(mm)  
Thickness  
(mm)  
Flare nut width  
(mm)  
A
B
C
D
1/4  
3/8  
1/2  
5/8  
6.35  
9.52  
0.8  
0.8  
0.8  
1.0  
9.1  
9.2  
6.5  
9.7  
13  
20  
23  
25  
17  
22  
26  
29  
13.2 13.5  
12.70  
15.88  
16.6 16.0 12.9  
19.7 19.0 16.0  
– 20 –  
FILE NO. SVM-12004  
Table 6-2-6 Flare and flare nut dimensions for R22  
Dimension (mm)  
Nominal  
diameter  
Outer diameter  
Thickness  
(mm)  
Flare nut width  
(mm)  
(mm)  
A
B
C
D
1/4  
3/8  
1/2  
5/8  
3/4  
6.35  
9.52  
0.8  
0.8  
0.8  
1.0  
1.0  
9.0  
9.2  
6.5  
9.7  
13  
20  
20  
23  
34  
17  
22  
24  
27  
36  
13.0 13.5  
12.70  
15.88  
19.05  
16.2 16.0 12.9  
19.7 19.0 16.0  
23.3 24.0 19.2  
D
B
A
C
Fig. 6-2-2 Relations between flare nut and flare seal surface  
2. FlareConnectingProceduresandPrecautions  
a) Make sure that the flare and union portions do not have any scar or dust, etc.  
b) Correctly align the processed flare surface with the union axis.  
c) Tighten the flare with designated torque by means of a torque wrench.  
The tightening torque for R410A is the same as that for conventional R22.  
Incidentally, when the torque is weak, the gas leakage may occur.  
When it is strong, the flare nut may crack and may be made non-removable. When choosing the  
tightening torque, comply with values designated by manufacturers. Table 6-2-7 shows reference  
values.  
NOTE :  
When applying oil to the flare surface, be sure to use oil designated by the manufacturer.  
If any other oil is used, the lubricating oils may deteriorate and cause the compressor to burn out.  
Table 6-2-7 Tightening torque of flare for R410A [Reference values]  
Tighteningtorqueoftorque  
Nominal  
diameter  
Outerdiameter  
(mm)  
Tighteningtorque  
N•m (kgf•cm)  
wrenches available on the market  
N•m (kgf•cm)  
1/4  
3/8  
1/2  
5/8  
6.35  
9.52  
14 to 18 (140 to 180)  
33 to 42 (330 to 420)  
50 to 62 (500 to 620)  
63 to 77 (630 to 770)  
16 (160), 18 (180)  
42 (420)  
12.70  
15.88  
55 (550)  
65 (650)  
– 21 –  
FILE NO. SVM-12004  
6-3. Tools  
6-3-1. RequiredTools  
The service port diameter of packed valve of the outdoor unit in the air-water heat pump using R410A is  
changed to prevent mixing of other refrigerant.  
To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare  
nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.  
The used refrigerating oil is changed, and mixing 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  
Conventionalair-water  
heatpumpinstallation  
air-waterheatpumpinstallation  
No.  
Usedtool  
Usage  
Existence of  
Whether conventional Whether new equipment  
new equipment equipment can be  
can be used with  
for R410A  
Yes  
used  
conventional refrigerant  
1
2
Flare tool  
Copper pipe gauge for  
Pipe flaring  
Flaring by  
∗ (Note 1)  
¡
Yes  
Yes  
∗ (Note 1)  
∗ (Note 1)  
adjusting projection margin conventional flare tool  
3
4
5
6
Torque wrench  
Connection of flare nut  
×
×
×
×
Gauge manifold  
Charge hose  
Evacuating, refrigerant  
charge, run check, etc.  
Yes  
Vacuum pump adapter  
Vacuum evacuating  
Refrigerant charge  
Yes  
Yes  
¡
×
×
Electronic balance for  
refrigerant charging  
7
¡
8
9
Refrigerant cylinder  
Leakage detector  
Refrigerant charge  
Gas leakage check  
Refrigerant charge  
Yes  
Yes  
×
×
×
×
¡
10 Charging cylinder  
(Note 2)  
×
(Note 1) 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.  
(Note 2) Charging cylinder for R410A is being currently developed.  
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  
7) Screwdriver (+, –)  
Use vacuum pump by attaching vacuum pump adapter.  
8) Spanner or Monkey wrench  
9) Hole core drill (Ø65)  
10) Hexagon wrench (Opposite side 4mm)  
11) Tape measure  
2) Torque wrench  
3) Pipe cutter  
4) Reamer  
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  
4) Electroscope  
– 22 –  
FILE NO. SVM-12004  
6-4. RechargingofRefrigerant  
When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the  
following steps.  
Recover the refrigerant, and check no refrigerant  
remains in the equipment.  
When the compound gauge’s pointer has indicated  
–0.1 Mpa (–76 cmHg), place the handle Low in the  
fully closed position, and turn off the vacuum pump’s  
Connect the charge hose to packed valve service port  
at the outdoor unit’s gas side.  
power switch.  
Keep the status as it is for 1 to 2 minutes, and ensure  
that the compound gauge’s pointer does not return.  
Connect the charge hose to the vacuum pump adapter.  
Open fully both packed valves at liquid and gas sides.  
Set the refrigerant cylinder to the electronic balance,  
connect the connecting hose to the cylinder and the  
connecting port of the electronic balance, and charge  
liquid refrigerant.  
Place the handle of the gauge manifold Low in the  
fully opened position, and turn on the vacuum pump’s  
power switch.  
(For refrigerant charging, see the figure below.)  
Then, evacuating the refrigerant in the cycle.  
CAUTION  
1. Never charge refrigerant exceeding the specified amount.  
2. If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.  
3. Do not carry out additional charging.  
When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the  
refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the specified  
amount is charged, and working pressure in the refrigeration cycle becomes abnormally high pressure, and  
may cause a rupture or personal injury.  
(INDOOR unit)  
(Liquid side)  
(OUTDOOR unit)  
Opened  
(Gas side)  
Refrigerant cylinder  
(With siphon pipe)  
Check valve  
Closed  
Open/Close valve  
for charging  
Service port  
Electronic balance for refrigerant charging  
Fig. 6-4-1 Configuration of refrigerant charging  
– 23 –  
FILE NO. SVM-12004  
1. Be sure to make setting so that liquid can be charged.  
2. When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.  
It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant.  
Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the  
cylinder upside down if cylinder is not equipped with siphon.  
[ Cylinder with siphon ]  
[ Cylinder without siphon ]  
Gauge manifold  
Gauge manifold  
OUTDOOR unit  
OUTDOOR unit  
c y l i n d e r  
a n t i g e r R e f r  
Refrigerant  
cylinder  
Electronic  
balance  
Electronic  
balance  
Siphon  
R410A refrigerant is HFC mixed refrigerant.  
Therefore, if it is charged with gas, the  
composition of the charged refrigerant changes  
and the characteristics of the equipment varies.  
Fig. 6-4-2  
6-5. BrazingofPipes  
6-5-1. MaterialsforBrazing  
1. Silverbrazingfiller  
1. Phosphor bronze brazing filler tends to react with  
sulfur and produce a fragile compound water  
solution, which may cause a gas leakage.  
Therefore, use any other type of brazing filler at a hot  
spring resort, etc., and coat the surface with a paint.  
Silver brazing filler is an alloy mainly composed  
of silver and copper.  
2. When performing brazing again at time of servicing,  
use the same type of brazing filler.  
It is used to join iron, copper or copper alloy,  
and is relatively expensive though it excels in  
solderability.  
2. Phosphor bronze brazing filler  
6-5-2. Flux  
Phosphor bronze brazing filler is generally  
used to join copper or copper alloy.  
1. Reason why flux is necessary  
• By removing the oxide film and any foreign matter  
on the metal surface, it assists the flow of brazing  
filler.  
3. Low temperature brazing filler  
Low temperature brazing filler is generally  
called solder, and is an alloy of tin and lead.  
• In the brazing process, it prevents the metal  
surface from being oxidized.  
Since it is weak in adhesive strength, do not  
use it for refrigerant pipes.  
• By reducing the brazing filler’s surface tension,  
the brazing filler adheres better to the treated metal.  
– 24 –  
FILE NO. SVM-12004  
2. Characteristicsrequiredforflux  
6-5-3. Brazing  
• Activated temperature of flux coincides with  
the brazing temperature.  
As brazing work requires sophisticated techniques,  
experiences based upon a theoretical knowledge, it  
must be performed by a person qualified.  
• Due to a wide effective temperature range, flux  
is hard to carbonize.  
In order to prevent the oxide film from occurring in  
the pipe interior during brazing, it is effective to  
proceed with brazing while letting dry Nitrogen gas  
(N2) flow.  
• It is easy to remove slag after brazing.  
• The corrosive action to the treated metal and  
brazing filler is minimum.  
• It excels in coating performance and is harm-  
less to the human body.  
Never use gas other than Nitrogen gas.  
As the flux works in a complicated manner as  
described above, it is necessary to select an  
adequate type of flux according to the type and  
shape of treated metal, type of brazing filler and  
brazing method, etc.  
1. Brazingmethodtopreventoxidation  
1) Attach a reducing valve and a flow-meter to  
the Nitrogen gas cylinder.  
3. Types of flux  
2) Use a copper pipe to direct the piping mate-  
rial, and attach a flow-meter to the cylinder.  
• Noncorrosiveflux  
3) Apply a seal onto the clearance between the  
piping material and inserted copper pipe for  
Nitrogen in order to prevent backflow of the  
Nitrogen gas.  
Generally, it is a compound of borax and boric  
acid. It is effective in case where the brazing  
temperature is higher than 800°C.  
• Activated flux  
Most of fluxes generally used for silver brazing  
are this type.  
It features an increased oxide film removing  
capability due to the addition of compounds  
such as potassium fluoride, potassium chloride  
and sodium fluoride to the borax-boric acid  
compound.  
4) When the Nitrogen gas is flowing, be sure to  
keep the piping end open.  
5) Adjust the flow rate of Nitrogen gas so that it  
is lower than 0.05 m3/Hr or 0.02 MPa  
(0.2kgf/cm2) by means of the reducing valve.  
6) After performing the steps above, keep the  
Nitrogen gas flowing until the pipe cools  
down to a certain extent (temperature at  
which pipes are touchable with hands).  
4. Piping materials for brazing and used  
brazing filler/flux  
7) Remove the flux completely after brazing.  
Piping material Used brazing filler  
Used flux  
Do not use  
Paste flux  
Vapor flux  
Copper - Copper  
Copper - Iron  
Iron - Iron  
Phosphor copper  
Silver  
M
Silver  
Flow meter  
Stop valve  
1. Do not enter flux into the refrigeration cycle.  
Nitrogen gas  
cylinder  
2. When chlorine contained in the flux remains  
within the pipe, the lubricating oil deteriorates.  
From Nitrogen cylinder  
Therefore, use a flux which does not contain  
chlorine.  
3. When adding water to the flux, use water which  
does not contain chlorine  
Pipe  
Nitrogen  
gas  
(e.g. distilled water or ion-exchange water).  
4. Remove the flux after brazing.  
Rubber plug  
Fig. 6-5-1 Prevention of oxidation during brazing  
– 25 –  
FILE NO. SVM-12004  
7. INDOOR UNIT CONTROL  
7-1. IndoorControllerblockdiagram  
7-1-1. Connection of wired remote controller  
Wired (Simple) header remote controller (wired)  
Central remote controller  
Display  
LCD  
Display LCD  
Display LED  
Function setup  
Key switch  
LCD driver  
CPU  
CN2  
CN1  
Function setup  
Key switch  
CPU  
DC5V  
Remote controller  
communication circuit  
Power circuit  
DC5V  
Power  
∗2  
Secondary  
battery  
circuit  
Sold separately  
Sold separately  
Central control  
remote controller  
(Sold separately)  
Follower unit  
#2  
Indoor unit  
#1 Header unit  
#3  
U3  
U4  
A
B
A
B
A
B
Indoor control P.C. board  
(MCC-1510)  
Central control  
communication circuit  
DC20V  
Remote controller  
communication circuit  
DC12V  
DC5V  
EEPROM  
TA sensor  
TC sensor  
TCJ sensor  
HA  
Receiver and  
Display P.C. board  
(MCC-5044)  
Same as  
the left  
Same as  
the left  
Display LED  
Receiver unit  
CPU  
H8/3039  
Driver  
Buzzer  
Driver  
Wireless remote  
signal setting  
(A/B)  
Louver  
motor  
Outside  
output  
Serial send/  
receive circuit  
1 2 3  
1 2 3  
Run/  
Alarm/  
Ready/  
AC  
Thermo. ON/  
COOL/HEAT/  
FAN  
Indoor  
fan motor  
Fan motor  
control circuit  
synchronous  
signal input circuit  
Power circuit  
DC15V  
DC280V  
Outdoor  
unit  
Outdoor  
unit  
2
3
1
1
3
2
Max. 8 units are connectable. ∗1  
∗1 When group and twin combination.  
Main remote controller shal be connected follower indoor unit.  
∗2 Weekly timer is not connectable to the sub remote controller.  
Outdoor unit  
– 26 –  
FILE NO. SVM-12004  
7-1-2. Connection of Wireless Remote Controller  
Central control  
remote controller  
(Sold separately)  
Follower unit  
Indoor unit  
#1 Header unit  
#2  
#3  
U3  
U4  
A
B
A
B
A
B
Indoor control P.C. board  
(MCC-1510)  
Central control  
communication circuit  
DC20V  
Remote controller  
communication circuit  
DC12V  
DC5V  
EEPROM  
TA sensor  
TC sensor  
TCJ sensor  
HA  
Receiver and  
Display P.C. board  
(MCC-5044)  
Same as  
the left  
Same as  
the left  
Display LED  
Receiver unit  
CPU  
H8/3039  
Driver  
Buzzer  
Driver  
Wireless remote  
signal setting  
(A/B)  
Louver  
motor  
Outside  
output  
Serial send/  
receive circuit  
1 2 3  
1 2 3  
Run/  
Warning/  
Defrost/  
AC  
Thermo. ON/  
Indoor  
fan motor  
Fan motor  
control circuit  
synchronous  
signal input circuit  
COOL/HEAT/  
FAN  
Power circuit  
DC15V  
DC280V  
×
L1 L2  
S
S
Outdoor  
unit  
Outdoor  
unit  
L1 L2  
Max. 8 units are connectable. ∗1  
∗1 When group combination, wired remote controller shall be  
connected to the follower indoor unit.  
Outdoor unit  
– 27 –  
FILE NO. SVM-12004  
7-2. Control Specifications (High WallType)  
No.  
Item  
Outline of specifications  
1) Distinction of outdoor unit  
Remarks  
1
When power  
supply is reset  
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  
• 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.)  
Ta: Room temp.  
Ts: Setup temp.  
To: Outside temp.  
Cooling  
operation  
1.0  
Cooling thermo. OFF (Fan)  
• Setup air volume  
Ta  
˚C  
Ts + α  
–1.0  
Heating  
operation  
• α is corrected according to the outside temperature.  
Outside temp.  
No To  
Correction value (α)  
K = deg  
0K  
–1K  
0K  
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  
HEAT  
AUTO  
18°C to 29°C  
17°C to 30°C  
Wired type ∗  
Wireless type  
∗ When use of remote sensor is set (with DN32), even when sensor value is within  
the above range in HEAT or AUTO mode, the thermo. sensor turns OFF when Ta  
sensor value exceeds 35°C.  
– 28 –  
FILE NO. SVM-12004  
No.  
Item  
Outline of specifications  
Remarks  
3
Room temp.  
control  
(Continued)  
2) Using the CODE No. 06, the setup temperature in heating  
operation can be corrected.  
Shift of suction  
temperature in heating  
operation  
2
6
3
4
5
SET DATA  
0
Setup temp.  
correction  
3°C  
4°C  
5°C  
0°C  
1°C  
2°C  
Setting at shipment  
SET DATA  
3
• When use of remote controller sensor is set (with DN32),  
no correction is performed.  
4
Automatic  
capacity control  
(GA control)  
1) Based on the difference between Ta and Ts, the operation frequency is instructed to  
the outdoor unit.  
2) Cooling operation  
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)  
n
: Room temp. difference  
: 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 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.  
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 approximately “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.  
Tsc: Setup temp. in  
cooling operation  
Tsh: Setup temp. in  
heating operation  
+ temp. correction  
of room temp. control  
Description in the parentheses shows an example of  
cooling ON/OFF.  
˚C  
Cooling  
+1.5  
(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.  
– 29 –  
FILE NO. SVM-12004  
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.  
Wireless type allows HH,  
H+, H, L+, L and AUTO.  
<COOL>  
[HH]  
[H+]  
[H]  
Ta ˚C  
A
+3.0  
HH  
B
C
+2.5  
+2.0  
+1.5  
+1.0  
+0.5  
Tsc  
(HH)  
[L+]  
[L]  
H+ (HH)  
H (HH)  
L+ (H+)  
L (H)  
D
E
L (H)  
F
–0.5  
L (L+)  
G
• Controlling operation in case when thermo of remote  
controller works is same as a case when thermo 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 I  
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  
– 30 –  
FILE NO. SVM-12004  
No.  
Item  
Outline of specifications  
Remarks  
6
Fan speed control  
(Continued)  
Fan speed [rpm]  
COOL  
HEAT  
SM56  
1080  
1080  
1020  
1000  
980  
SM80  
1260  
1240  
1080  
1020  
980  
HH  
HH  
H+  
H+  
H
H
L+  
L
980  
980  
L+  
L
940  
940  
900  
900  
UL  
UL  
500  
500  
“PRE-HEAT  
indication  
”
3) When thermo sensor turns OFF during heating, the fan  
speed mode becomes UL ( weak).  
4) When Ta is 25°C or above at the beginning of HEAT  
operation or when canceling defrost mode, H or HH mode  
continues for 1 minute from the time when Tc enters zone  
E. (Following figure.)  
5) The HH fan speed for auto cooling/heating is set to a  
speed higher than that for normal cooling/heating.  
However, it varies depending on the temperature difference  
of Tc during auto heating.  
Ta  
˚C  
47  
HH+α  
42  
HH  
7
Cool air discharge 1) In heating operation, the indoor fan is controlled based on  
In D and E zones, the  
priority is given to air  
volume selection  
setup of remote  
controller.  
preventive control  
the detected temperature of Tc sensor or Tcj sensor. As  
shown below, the upper limit of the revolution frequency is  
restricted.  
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 or Tcj is shifted  
by 6°C.  
Tc, Tcj  
˚C  
32  
HH  
H
30  
L
E zone  
28  
UL  
D zone  
26  
OFF  
C zone  
B zone  
A zone  
20  
16  
– 31 –  
FILE NO. SVM-12004  
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 8°C to 12°C until [ l ]  
zone is detected and the indoor fan operates  
with [L] mode.  
[˚C]  
A
8
I
K
5
J
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 5°C to –5°C.  
Tcn:  
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  

‚
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.  
• 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.  
Tc, Tcj  
Setup at shipment  
˚C  
M
A
Control temp. °C  
A
N
B
B
56  
54  
52  
52  
L
NOTE:  
When the operation has started or when Tc or Tcj < 30°C at start of the  
operation or after operation start, temperature is controlled between values in  
parentheses of A and B.  
– 32 –  
FILE NO. SVM-12004  
No.  
Item  
Outline of specifications  
Remarks  
10 After-heat  
When heating operation stops, in some cases, the indoor fan  
elimination operates with (L) for approx. 30 seconds.  
11 Louver  
control  
1) During the first operation after power on, louver position is  
controlled automatically according to operation mode  
(COOL/HEAT).  
Louver angle: 0°  
( full close )  
Cooling  
Heating  
Full close  
48°  
80°  
0°  
2) When louver position is controlled by remote controller, the  
unit’s microcomputer memorizes the position for use in the next  
operation.  
∗ The memorized louver position is cleared when power is  
turned off, and returns to the state of 1) above.  
3) Louver position setting  
• Louver position can be set within the range below.  
COOL/DRY  
HEAT/FAN  
Alarm:  
A code number (except  
F08 and L31) appears  
on the remote controller  
and the indoor unit stops.  
4) Swing setting  
• Louver moves within the range beloW.  
All operation modes  
5) When air conditioner opration stops, louver closes  
automatically.  
It keeps its position in the event of an alarm.  
6) Louver tilts upward automatically during preparation for heating.  
12 HA control  
1) This control is connected to TV control or remote start/stop I/F,  
etc, and start/stop are available by HA signal input from the  
remote position.  
2) This control outputs start/stop status to HA output terminal.  
3) I/O specifications conform to JEMA regulations.  
In the group operation,  
use this control by  
connecting to either  
master or follower  
indoor unit.  
– 33 –  
FILE NO. SVM-12004  
No.  
Item  
Outline of specifications  
Remarks  
13 Frequency fixed  
operation (Test run)  
<In case of wireless remote controller>  
1) Push [ON/OFF]  
button.  
MODE  
2) Using [SELECT] button, set [COOL] or [HEAT] to  
the operation mode to drive the air conditioner.  
3) Set [HIGH  
] to the fan speed.  
4) To change the temperature setting, repeat it 6 times  
to COOL and HEAT operations each.  
COOL: 17°C ↔ 18°C  
17°C → 18°C → 17°C  
→ 18°C → 17°C → 18°C  
→ 17°C → (test run) → ON/OFF  
HEAT: 30°C ↔ 29°C  
30°C → 29°C → 30°C  
→ 29°C → 30°C → 29°C  
→ 30°C → (test run) → ON/OFF  
• Change an operation setting within 3 seconds.  
• The error detection is performed as usual.  
• The frequency-fixed operation is performed.  
5) To finish a test run, push [ON/OFF]  
button.  
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 (150H) has passed, and it is displayed  
on LCD.  
FILTER [  
] goes on.  
∗ It is provided on the  
separately sold type  
TCB-AX21E2  
2) When the filter reset signal has been received from  
the remote controller, time of the calculation timer is  
cleared.  
TCB-AX32E2  
In this case, the measurement time is reset if the  
specified time has passed, and display on LCD  
disappears.  
15 Central control mode  
selection  
1) Setting at the central controller side enables to select  
the contents which can be operated on the remote  
controller at indoor unit side.  
2) RBC-AMT32E2  
[Last push priority] :  
(No display)  
The operation contents can be selected from both  
remote controller and central controller of the indoor  
unit side, and the operation is performed with the  
contents selected at the last.  
[CENTER] goes on.  
[CENTER] goes on.  
In a case of wireless  
type, the display lamp  
does not change.  
[Center] :  
Start/Stop operation only can be handled on the  
remote controller at indoor unit side.  
[Operation Prohibited] :  
It cannot be operated on the remote controller at  
indoor unit side. (Stop status is held.)  
However, contents which  
can be operated are same.  
The status set in  
[CENTER]/[Operation  
Prohibited] mode is  
notified with the  
receiving sound  
“Pi, Pi, Pi, Pi, Pi” (5 times).  
– 34 –  
FILE NO. SVM-12004  
No.  
Item  
Outline of specifications  
Remarks  
16 Power-saving  
control  
1) Power-saving opration is available in the AUTO mode.  
2) The set temperature is corrected using various sensor data  
within the range where comfort is maintained.  
3) By using various sensor data including room temp. Ta, outside  
air temp. To, fan speed, and indoor unit heat exchange sensor  
temp. Tc, 20 minutes data is averaged to calculate a set  
temperature correction value.  
4) The set temperature is corrected every 20 minutes with the  
following shift range.  
Cooling: +1.5 to –1.0K  
Heating: –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.  
Ta  
˚C  
Normal control  
+4  
+3  
Tsc  
Max. frequency is  
restricted to approximately  
the rated cooling frequency  
3) HEAT operation mode:  
It is controlled according to the following figure if To >15°C.  
Max. frequency is  
restricted to approximately  
the rated heating frequency  
Ta  
˚C  
Tsh  
–3  
–4  
Normal control  
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]  
– 35 –  
FILE NO. SVM-12004  
No.  
Item  
Outline of specifications  
Remarks  
19  
Self-clean operation  
(Dry operation)  
1) When cooling operation mode (AUTO COOL, COOL, DRY) stopped, the following  
three self-clean operations are performed.  
Compressor  
ON period  
Self-clean  
operation period  
FAN  
Louver  
0 to 10 min.  
10 to 60 min.  
60 min. to  
None  
1 hour  
2 hours  
450 rpm  
Position of 15° from all closes  
2) During operation of self-clean,  
lights on the wired  
On the remote control-  
ler before the wired  
remote controller  
remote controller screen. However the operation lamp  
(Green LED) goes off.  
(RBC-AMT31E),  
Self-clean operation  
display is not output.  
And it is not also on  
the wireless remote  
controller.  
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  
It is recognized as  
[STOP] from the  
remote monitor side.  
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 Item code (DN) [D3] to [0000].  
∗ To erase the  
display during operation of self-clean,  
change Item code [D4] from [0000: Display  
(At shipment)] to [0001: Non-display].  
SAVE  
20 Save operation  
(Wired remote  
controller specific  
operation)  
1) Turn on  
button on the wired remote controller.  
lights on the wired  
Carry out setting  
operation during stop of  
the unit; otherwise the  
unit stops operation.  
2) During operation of save operation,  
remote controller.  
3) During save operation, the current release control is performed  
with the restriction ratio set in EEPROM on the outdoor unit.  
For the setup operation,  
refer to “How to set up  
contents of save  
operation” of  
“10. SETUP AT LOCAL  
SITE AND OTHERS”.  
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 operation 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%).  
21 Auto restart  
1) Object  
It restarts the operation automatically after resetting the  
unexpected stop of power supply such as power failure.  
2) Contents  
After returning from a power failure, the auto restart function  
reads the operation status from EEPROM and then restarts  
the operation automatically according to the operation  
contents.  
3) Setup of function exchange by wired remote controller  
CODE No. (DN): 28  
SET DATA  
0000  
0001  
Auto restart  
None (At shipment)  
Provided  
– 36 –  
FILE NO. SVM-12004  
No.  
Item  
Outline of specifications  
Remarks  
22 8°C  
1) This function is intended for the cold latitudes and performs  
objective heating operation 8°C heating operation).  
heating/  
Frost protective  
operation  
(Wired remote  
controller specific  
operations)  
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.  
In a group connection,  
if there is even one  
combination with other  
unit, “This function is not  
provided.” is displayed.  
∗ 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 button  
during heating operation; besides by pushing  
button for 4 seconds or more after temperature reached the  
minimum set temperature.  
The setup temperature  
jumps from [18] to [8].  
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.  
23 Hi POWER  
When you push the Hi POWER button during cooling,  
heating or AUTO, the air conditioner will start the following  
operation.  
• [Hi POWER] Display  
operation  
(Wireless remote  
controller specific  
operations)  
• Cooling operation  
Performs the cooling operation at 1°C lower than  
the setting temperature.  
Only when the fan speed before the Hi POWER operation  
is not high, the fan speed will be increased.  
• Heating operation  
Performs the heating operation at 2°C higher  
than the setting temperature.  
Only when the fan speed before the Hi POWER operation  
is not high, the fan speed will be increased.  
– 37 –  
FILE NO. SVM-12004  
No.  
Item  
Outline of specifications  
Remarks  
24 COMFORT SLEEP When you push the COMFORT SLEEP button during  
• [  
] display  
operation  
cooling, heating or AUTO, the air conditioner will start the  
following operation.  
(Wireless remote  
controller specific  
operations)  
The fan speed display will indicate AUTO and low speed will  
be used.  
• Cooling operation  
In the operation suppression zone, where capacity is kept  
to the minimum, overcooling is prevented by raising the  
temperature setting by +1°C after 1 hour and by  
+2°C after  
2 hours of operation.  
The room temperature is thus regulated between the  
operation suppression zone and the set temperature.  
When the OFF timer is simultaneously set, 1, 3, 5 and 9  
hours appear by turns every pushing COMFORT SLEEP  
button and one of them can be selected for OFF timer.  
• Heating operation  
In the operation suppression zone, where capacity is kept  
to the minimum, overheating is prevented by lowering the  
temperature setting by +1°C after 1 hour and by  
+2°C after  
2 hours of operation.  
The room temperature is thus regulated between the set  
temperature and the operation suppression zone.  
When the OFF timer is simultaneously set, 1, 3, 5 and 9  
hours appear by turns every pushing COMFORT SLEEP  
button and one of them can be selected for OFF timer.  
Set temperature  
Operation suppression zone  
+2˚C  
+2˚C  
+1˚C  
+1˚C  
1 hour  
1 hour  
2 hours  
Set temperature  
Operation  
suppression zone  
2 hours  
– 38 –  
FILE NO. SVM-12004  
No.  
Item  
Outline of specifications  
Remarks  
25 PRESET operation Start the air conditioner in the operation mode which you want the  
• [  
] display  
(Wireless remote  
controller specific  
operations)  
remote controller to memorize.  
1) Push and hold the PRESET button for more than 3 seconds  
while the display flashes.  
The mark is indicated and the setting is memorized.  
• If you do not push the PRESET button within 3 seconds or if  
you push another button, the memory setting is cancelled.  
• Operation modes which can be memorized with the PRESET  
button are MODE, Temperatures, FAN, TIMER and Hi POWER.  
To operate the air conditioner with the setting memorized by the  
PRESET button.  
1) Push the PRESET button briefly.  
The setting memorized will be indicated and the air conditioner  
operates with regards to the setting.  
• The lamp (green) on the display panel of the indoor unit goes  
on, and operation starts after approximately 3 minutes.  
• Initial setting:  
MODE  
: AUTO  
Temperature : 22°C  
26 QUIET operation  
(Wireless remote  
controller specific  
operation)  
When you push the QUIET button during cooling, heating, fan only • [  
or AUTO, the air conditioner will start the following operation.  
• The fan speed display will indicate AUTO and low speed will be  
used.  
] display  
27 SLEEP operation  
(Wireless remote  
controller specific  
operation)  
When the OFF timer is set, 1, 3, 5 and 9 hours appear by turns  
every pushing SLEEP button and one of them can be selected for  
OFF timer.  
– 39 –  
FILE NO. SVM-12004  
7-3. Indoor Print Circuit Board (High WallType)  
<MCC-1510>  
TCJ sensor  
CN102, DC 5V  
Microcomputer operation LED  
D02  
TC sensor  
CN101, DC 5V  
EEPROM  
IC10  
Inter-unit wire  
CN67, AC 200V  
HA (T10)  
CN61, DC 12V  
Option power supply  
CN309, AC 220-240V  
Option output  
CN60, DC 12V  
CHK  
CN71, DC 5V  
DISP  
CN72, DC 5V  
Outside error input  
CN80, DC 12V  
Central control  
CN40, DC 5V  
EXCT  
CN73, DC 5V  
Remote controller  
power LED  
D203  
TA sensor  
CN104, DC 5V  
Remote controller  
CN41, DC 20V  
Terminator resistor provided/not provided  
Remote controller A/B switch  
SW01  
Fan drive  
CN32, DC 12V  
DC fan input/output  
CN210  
Louver  
CN33, DC 20V  
Display output/Wireless sensor  
CN213, DC 5V  
– 40 –  
FILE NO. SVM-12004  
High WallType P.C. board optional switch/Connector specifications  
Connector Pin  
Function  
Specifications  
Remarks  
No.  
No.  
Terminator resistor  
OFF: No terminator resistor,  
Setup at shipment OFF: No terminator resistor.  
Bit 1  
provided/Not provided  
ON:Terminator resistor provided Only 1 unit is ON during central control by custom only.  
SW01  
OFF: Remote controller A  
Remote controller A/B  
Fan output  
Bit 2  
1
Setup at shipment OFF: Remote controller A  
ON: Remote controller B  
Setup at shipment: Linked operation of ON with operation of  
indoor unit and OFF with stop  
DC12V  
CN32  
CN61  
* The setup of single operation by FAN button on remote  
controller is executed from remote controller. (DN = 31)  
2
Output  
HA Start/Stop input (J01: Provided/Not provided =  
Start/Stop input  
1
2
3
Pulse (At shipment from factory)/Static input switch)  
0V (COM)  
Operation stop of handy remote controller is permitted /  
Handy prohibition input  
prohibited by input.  
HA  
4
5
6
1
2
3
Operation output  
DC12V (COM)  
Alarm output  
ON during operation (Answer back of HA)  
ON during output of alarm  
DC12V (COM)  
Defrost output  
Thermo-ON output  
ON during defrosting of outdoor unit  
ON when Real thermo. ON (Comp. ON)  
Optional output  
CN60  
ON when operation mode is cooling line  
(Cool, Dry, Cooing/Heating AUTO cooling)  
4
5
Cooling output  
Heating output  
ON when operation mode is heating line  
(Heat, Cooling/Heating AUTO heating)  
6
1
Fan output  
ON when indoor fan is ON  
At shipment from factory, the error code “L30” generates and  
optional error input to stop operation forcedly (DN:2A = 1) is  
controlled (Display of protection for devices attached to outside)  
by setup of outside error input (DN:2A = 2) for 1 minute.  
DC12V (COM)  
Outside error input  
CN80  
CN71  
2
3
1
DC12V (COM)  
Filter/Option/Outside error input  
Check mode input  
*
Optional error input control is set up on the remote controller.  
This check is used for operation check of indoor unit.  
(The specified operation such as indoor fan “H”, drain pump  
ON, etc. is executed without communication with outdoor unit  
or remote controller.)  
CHK  
Operation check  
2
1
0V  
Display mode, communication is enabled by indoor unit and  
remote controller only.  
(When power supply is turned on.)  
Display mode input  
DISP  
CN72  
CN73  
Display mode  
2
0V  
Timer short (Usual)  
1
2
Demand input  
0V  
EXCT  
Indoor unit forced thermo-OFF operation  
Demand  
– 41 –  
FILE NO. SVM-12004  
8. TROUBLESHOOTING  
8-1. 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 the control operation performed from outside/remote side?  
• 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 controller?  
b) Did you return the wiring to the initial positions?  
c) Are connecting wires 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 position and 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 –  
FILE NO. SVM-12004  
<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 wiring to the initial positions?  
c) Are connecting wires 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.  
Check defective  
position and parts.  
Confirmation of lamp display  
Trouble  
1) Outline of judgment  
The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with  
the following method.  
Method to judge the erroneous position by flashing indication on the display part of indoor unit  
(sensors of the receiving unit)  
The indoor unit monitors 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.  
– 43 –  
FILE NO. SVM-12004  
8-2. Troubleshooting (HighWallType)  
8-2-1. 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 flashing indication on the display part of the indoor unit  
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  
Ready Timer Operation  
Check code  
Cause of trouble occurrence  
—
Power supply OFF or miswiring between receiving unit and indoor unit  
No indication at all  
E01  
E02  
E03  
E08  
E09  
E10  
Receiving error  
Sending error  
⎫
⎬
⎭
⎫
⎪
⎬
⎪
⎭
Receiving unit  
Miswiring or wire connection error  
between receiving unit and indoor unit  
Communication stop  
Ready Timer Operation  
Flash  
Duplicated indoor unit No.  
⎫
Setup error  
⎬
⎭
Duplicated master units of remote controller  
Communication error between CPUs on indoor unit P.C. board  
Wire connection error between indoor units, Indoor power OFF  
(Communication stop between indoor master and follower or between main  
and sub indoor twin)  
E18  
Ready Timer Operation  
Miswiring between indoor unit and outdoor unit or connection erorr  
(Communication stop between indoor and outdoor units)  
E04  
Flash  
⎫
Ready Timer Operation  
P01  
P10  
P12  
P03  
Indoor AC fan error  
⎪
⎪
⎬
Overflow was detected.  
Indoor DC fan error  
Protective device of indoor unit worked.  
⎪
⎪
⎭
Alternate flash  
⎫
Outdoor unit discharge temp. error  
Outdoor high pressure system error  
Case thermostat worked  
⎪
⎬
⎪
⎭
Protective device of  
outdoor unit worked.  
∗1  
P04  
Power supply error  
P05  
P07  
P15  
P19  
P20  
P22  
P26  
P29  
Power supply error  
⎫
⎪
⎬
⎪
⎭
Heat sink overheat error  
Gas leak detection error  
Outdoor unit error  
Ready Timer Operation  
Alternate flash  
4-way valve system error (Indoor or outdoor unit judged.)  
Outdoor unit high pressure protection  
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 –  
FILE NO. SVM-12004  
Lamp indication  
Check code  
F01  
Cause of trouble occurrence  
⎫
⎪
⎪
⎬
⎪
⎪
⎭
Ready Timer Operation  
Heat exchanger sensor (TCJ) error  
Heat exchanger sensor (TC) error  
F02  
Indoor unit sensor error  
F10  
F04  
F06  
F07  
F08  
F12  
F13  
F15  
Heat exchanger sensor (TA) error  
Discharge temp. sensor (TD) error  
Temp. sensor (TL, TS, TE) error  
Temp. sensor (TD) error  
Alternate flash  
⎫
⎪
⎪
⎪
⎪
⎪
⎬
⎪
⎪
⎪
⎪
⎪
⎭
Ready Timer Operation  
Alternate flash  
Temp. sensor (TO) error  
Sensor error of outdoor unit  
∗1  
Temp. sensor (TS) error  
Heat sink sensor (TH) error  
Temp. sensor miswiring (TE, TS)  
Ready Timer Operation  
Simultaneous flash  
F29  
F31  
Indoor EEPROM error  
Outdoor EEPROM error  
Ready  
Timer Operation  
Simultaneous flash  
⎫
⎬
⎭
H01  
H02  
H03  
H04  
L03  
Compressor break down  
Compressor lock  
Outdoor compressor system error ∗1  
Ready Timer Operation  
Flash  
Current detection circuit error  
Case thermostat worked.  
Duplicated master indoor units  
There is indoor unit of group  
}
}
Power supply, outdoor P.C. board error  
Compressor overheat, outdoor wiring error  
⎫
⎪
⎬
⎪
⎭
Ready  
Timer Operation  
→ AUTO address  
L07  
connection in individual indoor unit.  
∗ If group construction and address  
are not normal when power supply  
turned on, automatically goes to  
address setup mode.  
L08  
L09  
Unsetting of group address  
Simultaneous flash  
Missed setting  
(Unset indoor capacity)  
L10  
L20  
Unset model type (Service board)  
Duplicated indoor central addresses  
Ready  
Timer Operation  
Temp. sensor (TH) error  
EEPROM error  
Communication between outdoor MCU  
Heat sink overheat error  
Gas leak detection error  
4-way valve error  
L29  
Simultaneous flash  
L30  
Outside interlock error  
∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.  
– 45 –  
FILE NO. SVM-12004  
8-2-2. Others (Other than Check Code)  
Lamp indication  
Check code  
Cause of trouble occurrence  
Ready Timer Operation  
—
During test run  
Simultaneous flash  
Ready  
Timer Operation  
Disagreement of cool/heat  
(Automatic cool/heat setting to automatic cool/heat prohibited model, or  
setting of heating to cooling-only model)  
—
Alternate flash  
– 46 –  
FILE NO. SVM-12004  
– 47 –  
FILE NO. SVM-12004  
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  
The serial signal is not output from  
outdoor unit to indoor unit.  
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.  
• 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  
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  
E08  
E18  
Duplicated indoor unit address  
Stop  
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)  
1. Check remote controller wiring.  
2. Check indoor power supply wiring.  
3. Check indoor P.C. board.  
Regular communication error between  
indoor aster and follower units and  
between main and sub units  
Stop  
Displayed when  
(Automatic reset) error is detected  
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  
F01  
F02  
F10  
(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  
(Automatic reset) error is detected  
Indoor EEPROM error  
Stop  
Displayed when 1. Check indoor EEPROM. (including socket insertion)  
F29  
L03  
(Automatic reset) error is detected  
• EEPROM access error  
2. Check indoor P.C. board.  
Duplicated indoor master 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  
There is group wire in individual indoor  
unit.  
L07  
L08  
L09  
Stop  
∗ 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)  
Unset indoor group address  
Unset indoor capacity  
Displayed when 1. Set indoor capacity (DN=11)  
error is detected  
Stop  
Stop  
Displayed when  
error is detected  
1. Check outside devices.  
2. Check indoor P.C. board.  
L30  
P12  
Abnormal input of outside interlock  
Indoor DC fan error  
1. Position detection error  
Displayed when  
error is detected  
2. Over-current protective circuit of indoor fan driving unit operated.  
3. Indoor fan locked.  
Stop  
Stop  
4. Check indoor P.C. board.  
1. Check 4-way valve.  
4-way valve system error  
Displayed when  
2. Check 2-way valve and check valve.  
3. Check indoor heat exchanger (TC/TCJ).  
4. Check indoor P.C. board.  
P19  
P31  
• After heating operation has started,  
indoor heat exchangers temp. is  
down.  
(Automatic reset) error is detected  
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)  
– 48 –  
FILE NO. SVM-12004  
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.)  
1. Check setting of central control system  
network address. (Network adapter SW01)  
Duplicated indoor central addresses on  
communication of central control system  
(Detected by indoor/central controller side)  
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.  
– 49 –  
FILE NO. SVM-12004  
Error mode detected by outdoor unit  
Operation of diagnostic function  
Check code  
Judgment and measures  
Status of  
Indoor unit  
High Wall  
Cause of operation  
Condition  
air conditioner  
1. Check discharge temp. sensor (TD).  
Disconnection, short of discharge  
temp. sensor (TD)  
Displayed when  
error is detected  
F04  
F06  
F07  
F08  
F12  
Stop  
Stop  
2. Check outdoor P.C. board.  
1. Check temp. sensor (TE).  
2. Check outdoor P.C. board.  
Disconnection, short of outdoor temp.  
sensor (TE)  
Displayed when  
error is detected  
1. Check temp. sensor (TL).  
2. Check outdoor P.C. board.  
Disconnection, short of outdoor temp.  
sensor (TL)  
Displayed when  
error is detected  
Stop  
1. Check outside temp. sensor (TO).  
2. Check outdoor P.C. board.  
Disconnection, short of outside temp.  
sensor (TO)  
Displayed when  
error is detected  
Continue  
Stop  
1. Check suction temp. sensor (TS).  
2. Check outdoor P.C. board.  
Disconnection, short of suction temp.  
sensor (TS)  
Displayed when  
error is detected  
Disconnection, short of heat sink temp.  
sensor (TH)  
Displayed when  
error is detected  
1. Check outdoor P.C. board.  
F13  
F15  
Stop  
Stop  
1. Check temp. sensor (TE, TS).  
2. Check outdoor P.C. board.  
Miss-mounting of outdoor temp. sensor  
(TE, TS)  
Displayed when  
error is detected  
Displayed when  
error is detected  
1. Check outdoor P.C. board.  
F31  
H01  
Outdoor P.C. EEPROM error  
Compressor break down  
Stop  
Stop  
1. Check power supply voltage. (AC208V/230V ±10V)  
2. Overload operation of refrigerating cycle  
∗ Although operation has started,  
operation frequency decreases and  
operation stops.  
Displayed when  
error is detected  
Compressor lock  
1. Trouble of compressor (Lock, etc.):  
Replace compressor.  
Displayed when  
error is detected  
H02  
H03  
Stop  
Stop  
∗ Over-current detection after  
compressor start-up  
2. Wiring error of compressor (Open phase)  
Displayed when  
error is detected  
1. Check outdoor P.C. board.  
(AC current detection circuit)  
Current detection circuit error  
1. Check case thermostat and connector.  
2. Check gas leak, recharge  
Case thermostat operation  
Displayed when  
error is detected  
H04  
Stop  
3. Check full open of service valve.  
4. Check PMV (Pulse Motor Valve).  
5. Check broken pipe.  
∗ Abnormal overheat of compressor  
1. Outdoor service P.C. board  
Displayed when  
error is detected  
L10  
L29  
Unset jumper of service P.C. board  
Stop  
Stop  
Check model type setting jumper wire.  
Communication error between outdoor  
P.C. board MCU  
Displayed when  
error is detected  
1. Check outdoor P.C. board.  
– 50 –  
FILE NO. SVM-12004  
Operation of diagnostic function  
Check code  
Indoor unit  
High Wall  
Judgment and measures  
Status of  
air conditioner  
Cause of operation  
Condition  
Discharge temp. error  
1. Check refrigerating cycle (Gas leak).  
Displayed when  
error is detected  
P03  
P04  
∗ Discharge temp. (TD) over  
Stop  
2. Trouble of electronic expansion valve.  
3. Check discharge temp. sensor (TD).  
specified value was detected.  
1. Freezing cycle overload operation.  
2. Check outdoor heat exchange sensor (TE).  
3. Check outdoor P.C. board.  
Displayed when  
error is detected  
High pressure system error  
Stop  
4. Check high-pressure switch and circuit.  
Displayed when  
error is detected  
1. Check power supply voltage. (AC208V/230V ±10V)  
P05  
P07  
Power supply voltage error  
Heat sink overheat error  
Stop  
Stop  
1. Check screw tightening between PC. Board and heat  
sink and check radiator grease.  
Displayed when  
error is detected  
∗ 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  
Stop  
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  
error is detected  
3. Check indoor heat exchanger sensor (TC).  
4. Check 4-way valve coil.  
P19  
Stop  
∗ After heating operation has  
started, outdoor heat exchanger /  
suction temp. rises over the  
specified temp.  
5. Check PMV (Pulse Motor Valve).  
1. Check outdoor heat exchanger sensor (TL).  
2. Check indoor heat exchanger sensor (TC, TCJ).  
3. Check full open of service valve.  
High pressure protective operation  
• During cooling operation, outdoor  
temp. sensor (TL) detected  
temperature over specified temp.  
Displayed when  
error is detected  
4. Check indoor/outdoor fan.  
P20  
P22  
Stop  
Stop  
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  
Outdoor fan system error  
2. Check power supply voltage. (AC208V/230V ±10V)  
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  
Stop  
Stop  
P26  
P29  
error is detected 2. When performing operation while taking-off compressor  
wire, an error does not occur. (Compressor rare short)  
Displayed when  
error is detected  
1. Check control P.C. board.  
Position detection circuit error  
– 51 –  
FILE NO. SVM-12004  
8-2-4. 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-1570).  
Is power supplied to remote controller?  
AB terminal: Approx. DC18V  
Defect → Replace  
YES  
YES  
Are 2 remote controllers set  
without master 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  
[E02 error]  
Communication wires  
between wired remote controller and  
indoor unit connected properly?  
NO  
Correct communication wire.  
YES  
Failure of wired remote controller tranmitter  
→ Replace wired remote controller.  
– 52 –  
FILE NO. SVM-12004  
[E04 error]  
NO  
Does outdoor unit work?  
YES  
NO  
NO  
Is group address set correctly?  
YES  
Check CODE No. “14”.  
Correct wires.  
Are L1/L2/S wires normal?  
YES  
NO  
NO  
NO  
Are connectors from indoor unit  
Correct connector connection.  
and outdoor unit connected normally?  
YES  
Is indoor unit switch SW02 setting correct?  
Correct switch setting  
on MCC-1510 P.C. board.  
Bit 1: OFF  
Bit 2: OFF  
YES  
Does voltage between indoor unit terminal  
L2 and S fluctuate? (0-140V DC)  
Check MCC-1510 P.C. board.  
→ Replace it if necessary.  
YES  
• Measure within  
Black  
White  
3
2
1
+
|
20 seconds  
from power on.  
Terminal block  
NO  
NO  
NO  
Is 280V DC applied across IPDU  
main circuit capacitor?  
Replace IPDU.  
YES  
Is 280V DC supplied to CDB? (CN03)  
YES  
Replace IPDU.  
Replace IPDU.  
Is 7V DC supplied to CDB?  
Is CN06 – CN800 connection normal?  
Correct connector connection.  
YES  
NO  
NO  
Is case thermostat sensor connected?  
(CN500)  
Correct connector connection.  
YES  
Is case thermostat sensor working?  
YES  
Check MCC-1510 P.C. board.  
→ Replace it if necessary.  
Check CDB.  
→ Replace it if necessary.  
Check and correct  
refrigerant volume.  
Check indoor unit board.  
→ Replace defective board.  
[E10 error]  
YES  
Is there no disorder of power supply?  
NO  
Check indoor control P.C. board  
(MCC-1510).  
Check power supply voltage.  
Correct lines.  
Check and eliminate noise, etc.  
Defect → Replace  
– 53 –  
FILE NO. SVM-12004  
[E18 error]  
NO  
Correct inter-unit cable  
of remote controller.  
Are wired remote controller  
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  
Is indoor unit switch SW02 setting corrent?  
NO  
Correct switch setting  
on MCC-1510 P.C. board.  
Bit 1: OFF  
Bit 2: OFF  
YES  
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  
Is there no contact error  
of indoor/outdoor inter-unit cable  
(Signal line) of the main unit?  
YES  
Correct indoor/outdoor inter-unit cable  
(Serial signal line).  
NO  
Check indoor P.C. board  
(MCC-1510).  
Defect → Replace  
[E08, L03, L07, L08 error]  
E08: Duplicated indoor unit No.  
L03: There are 2 or more master 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. (11. ADDRESS SETUP)  
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-1510).  
Defect → Replace  
– 54 –  
FILE NO. SVM-12004  
[E09 error]  
YES  
Are 2 headers set by  
double wired remote controller?  
Correct one header/one follower.  
(Wired remote controller address connector)  
NO  
Check wired remote controller board.  
→ Replace it if necessary.  
[E18 error]  
NO  
Are A/B wires normal?  
YES  
Correct wired remote controller wire connection.  
YES  
Improper harness connection  
from indoor unit terminal block?  
Correct connector connection.  
Check circuit wiring.  
NO  
Is indoor unit switch SW02 setting correct?  
NO  
Bit 1: OFF  
Bit 2: OFF  
Correct switch setting on MCC-1510 P.C. board.  
YES  
NO  
Group control operation?  
YES  
NO  
Check indoor unit power connection  
(Power off and on).  
Are all indoor units powered ON?  
YES  
NO  
Twin or triple control?  
YES  
YES  
Improper signal connection  
between indoor unit and outdoor unit?  
Correct signal wire connection  
between indoor unit and outdoor unit.  
NO  
Check MCC-1510 P.C. board.  
→ Replace it if necessary.  
– 55 –  
FILE NO. SVM-12004  
[L30 error]  
NO  
NO  
Are outside devices of  
Check indoor P.C. board (MCC-1510).  
connector CN80 connected?  
Defect → Replace  
YES  
Check outside devices.  
Defect → Replace  
Do outside devices normally work?  
YES  
Check cause of operation.  
[F10 error]  
NO  
Is connection of TA sensor connector  
(CN104 on indoor P.C. board) correct?  
Correct connection of connector.  
Replace TA sensor.  
YES  
NO  
Are characteristics of  
TA sensor resistance value normal?  
YES  
∗ Refer to Characteristics-1.  
Check indoor P.C. board (MCC-1510).  
Defect → Replace  
– 56 –  
FILE NO. SVM-12004  
[P12 error]  
Turn OFF the breaker.  
Turn it ON 10 seconds after.  
NO  
NO  
Does fan stop  
with operation OFF?  
Is min. 1V DC present  
Replace  
indoor unit fan motor.  
between CN210 pin + and – ?  
ꢀ
ꢁ
YES  
YES  
Start cooling  
with LOW fan speed.  
Replace indoor unit  
MCC-1510 P.C. board.  
NO  
NO  
NO  
Replace indoor unit  
MCC-1510 P.C. board.  
Is min. 280V DC present  
Does fan rotate?  
between CN210 pin + and – ?  
ꢂ
ꢁ
YES  
YES  
Is min. 15V DC present  
Change  
fan speed to HIGH.  
between CN210 pin + and  
–
ꢃ
ꢁ
with motor connected?  
YES  
Stop operation and turn OFF breaker.  
Disconnect CN210, turn ON breaker again,  
and then stop operation using remote controller.  
NO  
Is min. 280V DC present  
between CN210 pin  
+ and – ?  
Replace indoor unit  
MCC-1510 P.C. board.  
ꢃ
ꢁ
YES  
NO  
Replace  
indoor unit fan motor.  
Operate indoor unit (except heating)  
by remote controller.  
Is min. 1V DC present between  
CN210 pin + and – ?  
ꢀ
ꢁ
(Measure within 15 seconds.)  
YES  
Stop operation and turn off the breaker.  
Discnnect CN210, turn on the breaker,  
and then stop operation using remote controller.  
NO  
Operate indoor unit (except heating)  
Does  
NO  
by remote controller.  
Is min. 1V DC present  
fan speed increase?  
Replace indoor unit  
MCC-1510 P.C. board.  
between CN210 pin  
+ and – ?  
ꢀ
ꢁ
YES  
(Measure within 15 seconds.)  
YES  
Replace  
indoor unit fan motor.  
NO  
NO  
Does cross flow fan  
Repair cross  
flow fan shaft.  
rotate normally by hand?  
YES  
Replace  
indoor unit fan motor.  
Rotate the fan by hand  
with operation OFF.  
Replace indoor unit  
MCC-1510 P.C. board.  
Is 0 to 15V DC (rev return signal)  
generated between  
Fan motor  
is normal.  
YES  
CN210 pin + and – ?  
ꢄ
ꢁ
– 57 –  
FILE NO. SVM-12004  
[F02 error]  
NO  
NO  
Is connection of TC sensor connector  
Correct connection of connector.  
(CN101 on Indoor P.C. board) correct?  
YES  
Are characteristics of  
TC sensor resistance value normal?  
Replace TC sensor.  
YES  
∗ Refer to Characteristics-2.  
Check indoor P.C. board (MCC-1510).  
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 TCJ sensor  
(Temperature-Resistance value characteristic table)  
Check indoor main P.C. board (MCC-1510).  
Defect → Replace  
[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 (D02) on indoor unit  
P.C. board flashes with  
1Hz for approx. 10 seconds.  
[SET] is displayed  
on remote controller.  
[SET]  
goes off.  
Reboot  
(Reset)  
(Power ON)  
(Repetition)  
[P31 error] (Follower indoor unit)  
When the header 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 CODE No. or alarm history of the remote controller. (In this model, the mode enters  
in automatic address set mode when the header unit detected [L03], [L07] or [L08] error.)  
– 58 –  
FILE NO. SVM-12004  
Temperature sensor  
Temperature – Resistance value characteristic table  
TA,TC,TCJ,TE,TS,TO sensors  
TD,TL sensors  
Representative value  
Representative value  
Resistance value (kΩ)  
Resistance value (kΩ)  
Temperature  
Temperature  
(°C)  
(°C)  
(Minimum value) (Standard value) (Maximum value)  
(Minimum value) (Standard value) (Maximum value)  
0
10  
20  
25  
30  
40  
50  
60  
70  
80  
90  
100  
32.33  
19.63  
12.23  
9.75  
33.80  
20.35  
12.59  
10.00  
7.990  
5.192  
3.451  
2.343  
1.623  
1.146  
0.8237  
0.6023  
35.30  
21.09  
12.95  
10.25  
8.218  
5.375  
3.594  
2.454  
1.709  
1.213  
0.8761  
0.6434  
0
10  
20  
25  
30  
40  
50  
60  
70  
80  
90  
100  
150.5  
92.76  
58.61  
47.01  
37.93  
25.12  
17.00  
11.74  
8.269  
5.925  
4.321  
3.205  
161.3  
99.05  
62.36  
49.93  
40.22  
26.55  
17.92  
12.34  
8.668  
6.195  
4.507  
3.336  
172.7  
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  
40  
30  
20  
10  
0
0
10 20 30 40 50 60 70 80 90 100  
Temperature (˚C)  
200  
150  
100  
50  
20  
15  
10  
5
0
0
0
10 20 30 40 50 60 70 80 90 100  
Temperature (˚C)  
∗ As TH sensor (Outdoor unit heat sink temp. sensor) is incorporated in the outdoor control P.C. board, the  
resistance value cannot be measured.  
– 59 –  
FILE NO. SVM-12004  
9. REPLACEMENT OF SERVICE P.C. BOARD  
Model type  
P.C. board model  
MCC-1510  
Label display on P.C. board  
04DD 03  
RAV-SM∗∗∗KRT series  
[Requirement when replacing the service indoor P.C. board assembly]  
In the non-volatile memory (Hereinafter said EEPROM, IC10) installed on the indoor P.C. board before  
replacement, the type and capacity code exclusive to the corresponding model have been stored at shipment  
from the factory and the important setup data such as refrigerant line /indoor unit /group address in  
(AUTO/MANUAL) mode have been stored at installation.  
Replace the service indoor P.C. board assembly according to the following procedure.  
After replacement, make sure that the indoor unit address is set correctly and also the refrigerant cycle is  
working correctly by test operation.  
<Replacement procedure>  
CASE 1  
Before replacement, power of the indoor unit can be turned on and the setup data can be readout  
by the wired remote controller.  
Read EEPROM data (see r1 in Page 61)  
ò
Replace service P.C. board & power ON (see r2 in Page 62)  
ò
Write the read data to EEPROM (see r3 in Page 64)  
ò
Power reset  
(If in group operation, reset the power for all indoor units which are connected to the remote controller.)  
CASE 2  
Before replacement, the setup data can not be read out by the wired remote controller.  
Replace service P.C. board & power ON (see r2 in Page 62)  
ò
Write the data such as “option input selection” setup to EEPROM (see r3 in Page 64)  
(According to the customers’ information)  
ò
Power reset  
– 60 –  
FILE NO. SVM-12004  
r1 Readout of the setup data from EEPRO  
(Data in EEPROM contents, which have been changed at the local site, are read out together with data in  
EEPROM set at shipment from the factory.)  
TEST  
CL  
SET  
1. Push  
,
and  
buttons of the remote controller at the same time for 4 seconds or more. 1  
(Corresponded with No. in Remote controller as shown below picture)  
∗ When group operation, the header indoor unit address is displayed at the first time. In this time, the CODE  
No. (DN) 10 is displayed.  
The fan of the second indoor unit operates and the louver starts swinging if any.  
LOUVER  
2. Every pushing [Unit, Louver UNIT  
] button, the indoor unit address in the group are displayed successively. 2  
Specify the indoor unit No. to be replaced.  
3. Using the set temperature  
/
buttons, the CODE No. (DN) can be moved up and down one by one. 3  
4. First change the CODE No. (DN) from 10 to 01. (Setting of filter sign lighting time)  
Make a note of the SET DATA displayed in this time.  
5. Next change the CODE No. (DN) using the set temperature  
Also make a note of the SET DATA.  
/
buttons.  
6. Repeat item 5. and made a note of the important SET DATA as shown in the below table.  
∗ 01 to AA are provided in the CODE No. (DN). On the way of operation, CODE No. (DN) may skip.  
TEST  
7. After finishing making a note, push  
button to return to the usual stop status. 4  
(Approx. 1 minute is required to be able to use the remote controller.)  
CODE No.  
Minimum requirements for CODE No.  
SET DATA SETTING  
UNIT No.  
R.C. No.  
CODE No. (DN)  
Contents  
Indoor unit capacity  
Refrigerant line address  
Indoor unit address  
Group address  
11  
12  
13  
14  
TEMP.  
ON / OFF  
TIMER SET  
TIME  
FAN  
MODE  
VENT  
3
4
SAVE  
FILTER  
RESET TEST  
SET  
CL  
SWING/FIX  
UNIT LOUVER  
2
1
Capacity of the indoor unit is necessary to set  
the revolutions of the fan.  
– 61 –  
FILE NO. SVM-12004  
r2 Replacement of service P.C. board  
1. Replace the P.C. board with a service P.C. board.  
In this time, setting of jumper line (cut) or setting of DIP switch on the former P.C. board should be reflected  
on the service P.C. board.  
Refer to the following table about DIP switch setting and drawing of P.C. board parts layout.  
2. According to the system configuration, turn on power of the indoor unit with any method in the following items.  
1) In case of single (individual) operation. Turn on power supply.  
A) Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then  
proceed to r3. (Refrigerant line address = 1, Indoor unit address = 1, Group address = 0  
(Individual) are automatically set.)  
CL  
SET  
TEST  
B) Push  
,
and  
buttons of the remote controller at the same time for 4 seconds or more  
( 1 operation), Interrupt the automatic address setup mode, and then proceed to r3.  
2) In case of group operation. Turn on power of the indoor unit of which P.C. board has been replaced with  
the service P.C. board with any method in the following items.  
A) Turn on power of the replaced indoor unit only.  
(However, the remote controller is also connected. Otherwise r3 operation cannot be performed.)  
Same as A) and B) in item 1).  
B) Turn on power of the multiple indoor units including replaced indoor unit.  
• Only a set of twin combination system  
• For all units in the group  
Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then  
proceed to r3.  
∗ The header indoor unit of a group may change by setup of automatic address.  
The refrigerant line address/indoor unit address of the replaced indoor unit are automatically set to the  
vacant addresses except addresses belonging to other indoor units which have not been replaced.  
It is recommended to make a note that the refrigerant line which includes the corresponding indoor unit  
and that the corresponding indoor unit is master or sub in the group control.  
– 62 –  
FILE NO. SVM-12004  
P.C. board parts layout drawing  
<MCC-1510>  
SW02  
1
2
ON  
SW01  
ON  
2
1
DIP switch (SW01, SW02)  
EEPROM (IC10)  
J01  
IC10  
Method of DIP switch setting  
Selected content  
RAV-SM ✻✻✻ KRT series  
At shipment  
OFF (Without terminator)  
OFF (A selection)  
OFF (Custom model)  
OFF  
Bit 1  
Bit 2  
Bit 1  
Bit 2  
Terminator resistor (for central control)  
Remote controller A/B selection  
Custom / Multi model selection  
No use  
✻ 1  
✻ 1  
SW01  
SW02  
OFF  
OFF  
∗1 : Match to set up contents of P.C. board before replacement.  
– 63 –  
FILE NO. SVM-12004  
r3 Writing of the setup contents to EEPROM  
(The contents of EEPROM installed on the service P.C. board have been set up at shipment from the factory.)  
CL  
SET  
TEST  
1. Push  
,
and  
buttons of the remote controller at the same time for 4 seconds or more. 1  
(Corresponded with No. in Remote controller as shown below picture) (The UNIT No.  
is displayed.)  
In this time, the CODE No. (DN) 10 is displayed.  
The fan of the indoor unit operates and the louver starts swinging if any.  
2. Using the set temperature  
3. First set the capacity of the indoor unit.  
(Setting the capacity writes the data at shipment from the factory in EEPROM.)  
1) Using the set temperature  
buttons, set 11 to the CODE No. (DN). 2  
2) Using the timer time  
/
buttons, the CODE No. (DN) can be moved up and down one by one. 2  
/
/
buttons, set the capacity. 3  
SET  
3) Push  
button. (OK when the display goes on.) 4  
button to return to usual stop status. 5  
TEST  
4) Push  
(Approx. 1 minute is required to start handling of the remote controller.)  
4. Next write the contents that have been written at the installation such as the address data into EEPROM.  
Repeat the above procedure 1.  
5. Using the set temperature  
(Setup of lighting time of filter sign)  
6. The contents of the displayed SET DATA in this time should be agreed with the contents in the previous  
memorandum in r1  
1) If data disagree, change the displayed SET DATA to that in the previous memorandum by the timer time  
/
buttons, set 01 to the CODE No. (DN). 2  
.
SET  
/
buttons, and then push  
2) There is nothing to do when data agrees.  
7. Using the set temperature buttons, change the CODE No. (DN).  
As same as the above 6., check the contents of the SET DATA and then change them to data contents in  
the previous memorandum in r1  
button. (OK when the display goes on.)  
/
.
8. Then repeat the procedure 6. and 7.  
TEST  
9. After completion of setup, push  
button to return the status to the usual stop status. 5  
In a group operation, turn off the power supply once, return the group wires between indoor units and CN41  
connectors as before, and then turn on power of all the indoor units.  
(Approx. 1 minute is required to be able to use of the remote controller.)  
∗ 01 to AA are provided in the CODE No. (DN). On the way of operation, CODE No. (DN) may skip.  
SET  
When data has been changed by mistake and  
button has been pushed, the data can be returned to the  
CL  
data before change by pushing  
button if the CODE No. (DN) was not yet changed.  
CODE  
No.  
SET DATA  
SETTING  
No.  
No.  
UNIT  
R.C.  
TEMP.  
ON / OFF  
2
5
TIMER SET  
TIME  
FAN  
MODE  
VENT  
3
4
SAVE  
FILTER  
RESET TEST  
SET  
CL  
SWING/FIX  
UNIT LOUVER  
1
– 64 –  
FILE NO. SVM-12004  
CODE No. (DN) table (Please record the objective unit data at field)  
DN  
Item  
Memo  
At shipment  
01 Filter sign lighting time  
02 Dirty state of filter  
0001:150 hour  
0000:Standard  
0099:Unfixed  
0002:+2°C  
03 Central control address  
06 Heating suction temp shift  
0C PRE-DEF indication selection  
0d Cooling auto mode existence  
0000:Standard  
0001:No auto mode  
cooling/heating Automatic selection by  
connected outdoor unit  
0F Cooling only  
0000:Heat pump  
10 Type  
Be sure to set as 0008 0008:High wall type  
11 Indoor unit capacity (See below table)  
12 Refrigerant line address  
13 Indoor unit address  
14 Group address  
According to capacity type  
0099:Unfixed  
0099:Unfixed  
0099:Unfixed  
1E Temp difference of automatic cooling/  
heating selecting control points  
0003:3deg (Ts ± 1.5)  
28 Auto restart  
0001:Provided  
2A Option input selection (CN80)  
0002:External emergency input  
0000:Thermo ON  
0000:Operation input  
0000:Available  
2b Thermo output selection (T10  
)
ƒ
2E Input selection (T10  
32 Sensor selection  
)

60 Timer set (Wired remote controller)  
69 Louver selection of cooling  
0000:Available  
0000:Standard  
Indoor unit capacity (CODE No. [11])  
SET DATA  
0001∗  
0009  
Model  
Invalid  
56  
0012  
80  
∗ Initial value of EEPROM installed on the supplied service P.C. board  
– 65 –  
FILE NO. SVM-12004  
10. SETUP AT LOCAL SITE AND OTHERS  
10-1. Test Run Setup on Remote Controller  
<Wired remote controller>  
TEST  
1. When pushing  
button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display.  
button.  
ON / OFF  
Then push  
• “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.  
TEST  
3. After a Test Run has finished, push  
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.)  
<Temporary button>  
• Checking wiring and piping of indoor/outdoor units  
1. Push  
[TEMPORARY] button for 10 seconds.  
The unit enters forcible cooling mode with a sound “pi”. COOL operation starts forcibly about 3 minutes later.  
Check whether cool air is discharged. If COOL opration does not start, recheck the wiring.  
2. Push  
[TEMPORARY] for about 1 second to stop trial opration.  
The vertical airflow louver closes and the operation stops.  
• Checking signal transmission from remote controller  
1. Push [ON/OFF] on the remote controller to check for nomal operation using remote controller.  
• To enter AUTO mode, push  
[TEMPORARY] once for about 1 second.  
[TEMPORARY] for 10 seconds or more.  
For forcible cooling, push  
• COOL operation specified by remote controller may not start depending on temperature conditions.  
Use forcible cooling operation to check wiring and piping of indoor/outdoor unit.  
– 66 –  
FILE NO. SVM-12004  
10-2. Forced Defrost Setup of Remote Controller (For wired remote controller only)  
(Preparation in advance)  
TEST  
SET  
CL  
1
2
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 LOUVER  
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.)  
10-3. LED Display on P.C. Board  
1. D02 (Red)  
• Lights up by the control of main microcomputer when the indoor unit is powered ON.  
• Flashes at intervals of 1 second (0.5-scond ON and OFF) when EEPROM is not mounted or write error  
occurs.  
• Flashes at intervals of 10 seconds (5-scond ON and OFF) in the DISP mode.  
(CN72 shout-circuited at power ON)  
• Flashes at intervals of 2 seconds (1-scond ON and OFF):  
Applicable unit in the EEPRPM setting (address, function selection, ect.) mode.  
2. D203 (Red)  
• Lights up by hardware control when power is supplied to remote controller.  
– 67 –  
FILE NO. SVM-12004  
10-4. Function Selection Setup (Wired Remote Controller Only)  
<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 header indoor unit address in the group control.  
In this time, fan and louver of the selected indoor unit operate.  
ò
LOUVER  
2
Every pushing UNIT  
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)  
2
• To change CODE No. to be set up, proceed to Procedure  
• To change the selected indoor unit, proceed to Procedure3 .  
.
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  
– 68 –  
FILE NO. SVM-12004  
Function selection CODE No. (DN) list  
CODE No.  
(DN)  
At shipment  
from factory  
Item  
Contents  
0000: None  
0002: 2500H  
0004: 10000H  
0001: 150H  
01  
Filter sign lighting time  
0003: 5000H  
0001: 150H  
0005: Clogging sensor used  
0000: Standard  
02  
03  
Filter stain level  
0000: Standard  
0001: Heavy stain (Half of standard time)  
0001: No.1 unit  
0099: Undecided  
to  
0064: No.64 unit  
Central control address  
0099: Undecided  
0000: No shift  
0002: +2°C  
0003: +3°C  
0001: +1°C  
0003: +3°C  
0002: +2°C  
06  
Heating suction temp. shift  
to  
0010: +10°C  
(Up to +6 is recommended.)  
0C  
0F  
Preparing indication selection  
Cooling-only  
0000: Preparing indicated  
0001: No indication  
0000: Preparing indicated  
0000: Heat pump  
0000: Heat pump  
0001: Cooling only (No display for [AUTO] [HEAT] )  
0001: 4-way air discharge cassette  
0004: Concealed duct  
10  
Type  
0008: High wall  
0007: Under ceiling  
0000: Undecided  
0001: No.1 unit  
0001: No.1 unit  
0000: Individual  
0008: High wall  
11  
12  
13  
Indoor unit capacity  
Line address  
0001 to 0034  
According to capacity type  
0099: Undecided  
to  
to  
0030: No.30 unit  
0064: No.64 unit  
0001: Master unit in group  
Indoor unit address  
0099: Undecided  
14  
1E  
Group address  
0099: Undecided  
0002: Follower unit in group  
In automatic cooling/heating, temp.  
width of cool → heat, heat →  
cool mode selection control point  
0000: 0 deg to  
0010: 10 deg  
0003: 3 deg  
(Ts±1.5)  
(Cool/heat are reversed with ± (Data value) /  
2 against the set temperature)  
28  
2A  
Auto restart  
0000: None  
0001: Provided  
0000: None  
Selection of option / error input  
(CN80)  
0000: Filter input  
0002: External alarm input  
0001: Alarm input  
0002: External alarm input  
(Air cleaner, etc.)  
Selection of thermostat output  
0000: Indoor thermostat ON  
0001: ON receiving output of outdoor compressor  
2b  
0000: Thermostat ON  
(T10  
)
ƒ
0000: Normal (JEMA)  
0002: Fire alarm input  
0001: Card input  
0000: Normal  
(HA terminal)  
2E  
31  
32  
Selection of HA (T10 ) terminal  

(Forgotten to be off)  
Fan (Single operation)  
Sensor selection  
0000: Impossible  
0001: Possible  
0000: Impossible  
0000: Body TA sensor  
0001: Remote controller sensor  
0000: Body sensor  
Timer setting  
60  
69  
86  
C2  
0000: Operable  
0000: Normal  
0001: Operation prohibited  
0001: Down allowed  
0001: Priovided  
0000: Operable  
0000: Normal  
(Wired remote controller)  
Louver setting for cooling  
Correction of feeling  
of strong heating  
0000: Not priovided  
0000: Not priovided  
Power saving  
(Current demand X% to  
outdoor unit)  
0075 : 75%  
0050 : 50% to 0100 : 100%  
∗ Restriction ratio setting for save operation (DODE No. (DN) [C2]) can be set/changed from the normal CODE No. (DN) setup  
(Detail CODE No. (DN) setup).  
– 69 –  
FILE NO. SVM-12004  
10-5. Wiring and Setting of Remote Controller Control  
2-remote controller control  
<Wireless remote controller A-B selection>  
(Controlled by 2 remote controllers)  
This control is to operate 1 or multiple indoor units  
are operated by 2 remote controllers.  
Using 2 wireless remote controllers for the respective  
air conditioners, when the 2 air conditioners are  
closely installed.  
(Max. 2 remote controllers are connectable.)  
Wireless remote controller B setup  
• When connected 2 remote controllers  
operate an indoor unit  
1. Push  
[TEMPORART] button on the indoor unit  
to turn the air conditioner ON.  
2. Point the wireless remote controller at the indoor  
unit.  
Remote controller switch  
(Master)  
Remote controller switch  
(Sub)  
3. Push and hold CHK l button on the wireless remote  
Sold  
Sold  
separately  
separately  
controller by the tip of the pencil.  
A B  
A B  
“00” will be shown on the display.  
4. PushMODE during pushing CHK l .  
l
Remote controller wires  
“B” will be shown on the display and “00” will be  
disappear and the air conditioner will turn OFF.  
(Procured locally)  
Terminal block for  
remote controller wires  
The wireless remote controller B is memorized.  
A B  
Indoor unit  
1 2 3  
1 2 3  
“B” Display  
“00” Display  
Outdoor unit  
(Setup method)  
PRESET  
FAN  
One or multiple indoor units are controlled by  
2 remote controllers.  
(Max. 2 remote controllers are connectable.)  
NOTE  
<Wired remote controller>  
• Repeat above step to reset wireless remote  
controller to be A.  
How to set wired remote controller  
as sub remote controller  
• The wireless remote controllers do not display “A”.  
Change DIP switch inside of the rear side of the  
remote controller switch from remote controller  
master to sub.  
• The factory default of the wireless remote  
controllers is “A”.  
Remote controller (Inside of the rear side)  
1 2  
Sub remote  
controller  
Master remote  
controller  
1
2
DIP switch  
1
2
[Operation]  
1. The operation contents can be changed by  
Last-push-priority.  
2. Use a timer on either Master remote controller  
or Sub remote controller.  
– 70 –  
FILE NO. SVM-12004  
10-6. Monitor Function of Remote Controller Switch  
n Calling of sensor temperature display  
<Contents>  
Each data of the remote controller, indoor unit and outdoor unit can be understood 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  
ò
TEMP.  
2
Push temperature set  
the CODE No. of data to be monitored.  
buttons and then change  
FILTER  
RESET TEST  
SET  
CL  
SWING/FIX  
UNIT LOUVER  
The CODE No. list is shown below.  
2 4 1  
<Operation procedure>  
3
1 2 3 4  
Returned to usual display  
CODE No.  
Data name  
CODE No.  
Data name  
00  
01  
Room temperature under control ∗1  
60  
61  
62  
63  
65  
Outdoor heat exchanger (Coil) temperature (TE)  
Outside temperature (TO)  
Room temperature  
(Remote controller)  
Compressor discharge temperature (TD)  
Compressor suction temperature (TS)  
Heat sink temperature (TH)  
02  
03  
Indoor suction temperature (TA)  
Indoor heat exchanger (Coil)  
temperature (TCJ)  
04  
Indoor heat exchanger (Coil)  
temperature (TC)  
∗1 Header indoor unit only under group control.  
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.  
– 71 –  
FILE NO. SVM-12004  
10-7. Calling of error history  
<Contents>  
The error contents in the past can be called.  
<Procedure>  
SET  
TEST  
1
Push  
+
buttons simultaneously for  
TEMP  
ON / OFF  
4 seconds or more to call the service check mode.  
TIMER SET  
TIME  
FAN  
SAVE  
MODE  
VENT  
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 oc-  
FILTER  
RESET TEST  
SET  
CL  
SWING/FIX  
UNIT LOUVER  
2 curred are displayed.  
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)  
2 3 1  
<Operation procedure>  
NOTE  
1 2 3  
4 error histories are stored in memory.  
Returned to usual display  
TEST  
3
Pushing  
button returns the display to usual display.  
REQUIREMENT  
CL  
Do not push  
button, otherwise all the error histories of the indoor unit are deleted.  
10-8. Group control operation  
In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.  
The indoor unit connected with outdoor unit controls room temperature according to setting on the remote  
controller.  
<System example>  
OUT  
IN  
OUT  
IN  
OUT  
IN  
OUT  
IN  
OUT  
IN  
Header  
2-1  
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.  
2. Address setup  
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 wires.  
2) Check line address/indoor address/group address of the unit one by one.  
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.  
– 72 –  
FILE NO. SVM-12004  
n Indoor unit power-ON sequence  
Power ON  
• The unit without power feed waits entirely  
→ Waiting status is released by system start  
• Reboot when power is fed on the way  
<By feed 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) A header indoor unit and 1 or more follower indoor units for Gr.  
System start  
Automatic address starts.  
(Approx. 1 minute up to finish)  
<Initial communication>  
Outdoor model distinction (10 seconds) (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)  
(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.)  
– 73 –  
FILE NO. SVM-12004  
10-8. TCC-LINK Central Control  
10-8-1 Functions  
Connect an indoor unit to the TCC-LINK central controller.  
10.8.2 Connection Diagram  
Central controller  
Indoor unit  
CN40  
Terminal block  
(U3/U4)  
CN41  
TCC-LINK  
Number of units : 64  
Communication length : 2km  
Terminal block  
(A/B)  
Remote controller  
– 74 –  
FILE NO. SVM-12004  
10.8.3 Wiring Specifications  
Number of wires  
Size  
Specification  
MVVS  
Up to 1000 m: 1.25 mm² stranded wires  
Up to 2000 m: 2.0 mm² stranded wires  
2
• A 2-wire non-polarity cable is used.  
• The cable length depends on each central control system.  
• When used in a system including multiple air conditioners, the length includes the length of all wires between  
indoor and outdoor units on the side of multiple air conditioners.  
• Use 2-wire shield cable (MVVS) to protect from noise.  
• Joint shield wire between indoor units by closed-end terminating, and leave its end open with insulation  
processing. Make one-point grounding at the indoor unit side. Set the terminating resistors.  
(Central control for custom indoor units only)  
Notes  
1 Joint shield wire between indoor units by closed-end terminating.  
2 Leave the end of the shield wire open with insulation processing.  
3 Make one-point grounding at the indoor unit side.  
Central control device  
U1 U2  
Caution 2  
Caution 1  
Caution 3  
Central control system wiring  
Outdoor unit  
: TCC-LINK adapter (option)  
Required for DI-SDI indoor units  
other than Wall Type  
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)  
– 75 –  
FILE NO. SVM-12004  
10.8.4 Setting Onboard Switches  
Setting of terminating resistors is necessary for central control of custom indoor units only.  
• Use SW01 to set terminating resistors.  
• Set terminating resistors for the indoor unit only with the smallest refrigerant line address.  
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  
Refrigerant line 4  
1 2 3  
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  
Follower unit  
1 2 3  
Header unit  
U3 U4 1 2 3  
unit  
Indoor unit  
U3 U4 1 2 3  
1 2 3  
1 2 3  
A
B
A B  
A B  
A
B
A
B
A
B
TCC-LINK adapte  
Remote controller wiring  
(option)  
Required for DI-SDI  
indoor units other  
than WallTyoe  
Remote controller  
Remote controller  
Remote controller  
Remote controller  
Twin/Triple operation  
(Example of triple)  
Group operation  
(Max. 8 units)  
Line address  
SW01 Bit 1  
Remarks  
1
ON  
Bit 1 to ON.  
2
OFF  
Factory setting  
3
OFF  
Factory setting  
4
OFF  
As status shipped from factory  
(OFF at shipment from factory)  
– 76 –  
FILE NO. SVM-12004  
10.8.5 Onboard Switch Setting Procedure  
1. Detach the front panel.  
2. Remove the drain guide and disconnect TCJ  
sensor.  
TCJ sensor  
Drain guide  
(with sleeve)  
Drain guide  
fixing screw  
3. Remove the earth wire, TC sensor, and  
motor lead (louver motor, fan motor).  
TC-sensor  
Fan motor connector  
insert position  
Electrical control box  
fixing screw  
Earth wire  
Display fixing screw  
4. Remove the screws and detach the electrical  
control box.  
– 77 –  
FILE NO. SVM-12004  
5. Detach the electric parts cover, and set SW01 bit 1 to ON.  
Do not touch bit 2 as it is for other setting.  
DB301  
C302  
L301  
1 : OFF  
2 : OFF  
ON  
1 : ON  
2 : OFF  
ON  
T301  
CN40  
C301  
1
2
1
2
Factory After setting  
setting change  
ON  
1
2
CN102  
CN213  
IC01  
BZ01  
2
1
O N  
SW02  
MCC-1510  
6. Install the removed parts by reversing steps 1 to 6.  
(Insert the sensors and motor leads firmly into their correct positions.)  
– 78 –  
FILE NO. SVM-12004  
10.8.6 Setting Addresses  
Overview  
To connect DI-SDI air conditioners to the TCC-LINK central control system for central control/monitoring,  
addresses of connected indoor units must be set in the following procedure.  
Connections/wiring  
completed  
System power ON  
Auto address setting  
The system performs automatically after power on.  
Manual setting/change of  
refrigerant line addresses  
Change refrigerant line address.  
If auto address setting failed, set refrigerant line  
address manually.  
* Refer to 11 ADDRESS SETTING.  
Is group control  
(including twin/triple/double twin) going?  
NO  
YES  
Are all indoor units with central control  
function header unit (group address=1)?  
YES  
NO  
Re-set indoor units with central control function to header  
unit, and other indoor units to follower unit.  
* Refer to 11 ADDRESS SETTING.  
Central control address  
number setting  
* Refer to the manual of the central control system.  
END  
– 79 –  
FILE NO. SVM-12004  
(1) Manual setting/change of indoor unit refrigerant line addresses  
[In the case of 29 refrigerant systems or less (when multiple air conditioners are included, their  
number of refrigerant systems is also included)]  
Refrigerant address “1” is assigned to all indoor units except for group control by the auto address setting  
after system power on.  
Therefore, change refrigerant line address of each refrigerant system using the wired remote controller.  
Central  
controller  
Refrigerant Refrigerant  
Refrigerant Refrigerant  
system 1  
system 2  
Refrigerant system 3  
O/U  
system 4  
system 5  
O/U  
O/U  
O/U  
O/U  
I/U  
I/U  
I/U  
I/U  
I/U  
I/U  
R/C  
R/C  
R/C  
R/C  
Refrigerant line  
address  
Indoor unit  
address  
1
1
0
1
1
0
1
1
0
2
1
0
1
1
1
3
1
1
1
2
2
3
2
2
1
1
1
4
1
1
2
1
2
5
1
2
An example after auto  
address setting  
Group address  
Refrigerant line  
address  
Indoor unit  
address  
After changing refrigerant line  
address manually  
Group address  
∗ For changing/setting refrigerant line addresses by wired remote controller, refer to 11. ADDRESS SETTING.  
∗ Refrigerant line address must be unique for each refrigerant system.  
To perform central control in combination of SMMS and DI•SDI air conditioners, set refrigerant line ad-  
dresses different from those of SMMS.  
– 80 –  
FILE NO. SVM-12004  
(2) Manual setting/change of indoor unit refrigerant line addresses  
[In the case of 30 refrigerant systems or more (when multiple air conditioners are included,  
their number of refrigerant systems is also included)]  
Regarding refrigerant systems up to No. 29, manual setting/change is the same as that on the  
previous page.  
• Refrigerant address “1” is assigned to all indoor units except for group control by the auto address setting  
after system power on. Therefore, change refrigerant line address of each refrigerant system using the  
wired remote controller.  
• Also change indoor unit addresses so as to avoid duplication of indoor unit numbers.  
Central  
controller  
Refrigerant Refrigerant  
Refrigerant Refrigerant  
system 30  
system 31  
Refrigerant system 32  
O/U  
system 33  
system 34  
O/U  
O/U  
O/U  
O/U  
I/U  
I/U  
I/U  
I/U  
I/U  
I/U  
R/C  
R/C  
R/C  
R/C  
Refrigerant line  
address  
Indoor unit  
address  
1
1
1
1
1
1
1
2
1
2
1
2
5
1
2
An example after auto  
address setting  
1
Group address  
0
0
1
2
1
Refrigerant line  
address  
Indoor unit  
address  
30  
1
30  
2
30  
3
30  
4
30  
5
After changing refrigerant line  
address manually  
0
0
1
2
1
Group address  
∗ For changing/setting refrigerant line addresses by wired remote controller, refer to 11. ADDRESS SETTING.  
∗ Change refrigerant line address of all indoor units connected directly to the central controller to “30”.  
These indoor units are under twin or triple control, also change the refrigerant line address of follower  
indoor units to “30”.  
∗ Change indoor unit addresses so that they are not duplicated.  
– 81 –  
FILE NO. SVM-12004  
10-8-7. Central Control Address Number Setting  
To connect an indoor unit to the central control remote controller, an address number for central control must  
be set.  
• An address number for central control is indicated as the refrigerant line number of the remote controller.  
1 Setting by Remote Controller on Indoor Unit Side  
<Procedure> Perform the following steps in the operation OFF mode.  
VENT  
TEST  
1
Push  
When group control is going, UNIT No.  
lected. At this time, the fans of all the selected indoor units start running. (Fig. 1)  
Maintain this state without pushing UNIT LOUVER  
and  
on the remote controller simultaneously for 4 seconds or more.  
is displayed first, and all indoor units in the group are se-  
.
For individual remote controllers without group control, a refrigerant line address and an indoor unit  
address are indicated.  
TEMP.  
2
3
Specify code 03 with  
buttons.  
(Fig.1)  
TIME  
Choose setting data with  
Table 1 shows setting data.  
SET  
Indication on the LCD shows normal operation.  
• To change an item for setting, return to 2 .  
buttons.  
CODE No.  
SET DATA SETTING  
UNIT No.  
R.C. No  
4
5
Push  
ON / OFF  
TEST  
Push  
to return to the normal indication.  
AN  
MODE  
VENT  
VE  
FILTER  
RESET TEST  
SET  
CL  
SWING/FIX  
UNIT LOUVER  
4 3  
2 5  
1
Table 1  
Address No. for  
central control  
Setting data  
0001  
0002  
0003  
|
1
2
3
|
0064  
64  
Not set  
(factory setting)  
0099  
– 82 –  
FILE NO. SVM-12004  
11. ADDRESS SETTING  
11-1. Address Setting  
Address Setting Procedure  
When twin or triple operation is selected with one indoor unit and one outdoor unit or when one outdoor is  
connected to each indoor unit even with multiple refrigerant systems in group operation, auto address  
setting is completed during the power on process of outdoor unit.  
Remote controller operation is disabled during the auto address setting process (4 to 5 minutes).  
O/U refrigerant line address/I/U  
address/group address setting  
Connections/wiring  
completed  
N
Do you set I/U address  
freely?  
N
Y (manually)  
One refrigerant  
system?  
N
N
N
Is group control going?  
Y
Y
(To auto address  
setting mode)  
Multiple units for  
twin/triple operation?  
Power ON  
outdoor unit  
Y
Auto address  
setting first, then  
corrected?  
Connect com. cable between  
R/C and I/U temporarily  
one to one.  
Auto address setting  
ends within 4 to 5 minutes.  
Y
Power ON  
outdoor unit.  
Power ON  
outdoor unit.  
(Corrected to an address/group  
manually after address setting)  
Set address for each  
I/U individually  
END  
• Unless the following addresses are stored in the EEPROM (IC10) on the indoor unit board, trial operation is disabled.  
(Undefined data is stored at factory shipping.)  
Code Factory setting data  
Setting data range  
Refrigerant line address 12  
0099  
0099  
0001 (unit No. 1) to 0030 (unit No. 30)  
0001 (unit No. 1) to 0064 (unit No. 64)  
Maximum I/U address in the same refrigerant system (double twin=4)  
Indoor unit address  
13  
Group address  
14  
0099  
0000 : Individual (indoor units without group control)  
0001 : Header (one indoor unit in the group)  
0002 : Follower (indoor units in the group except header unit)  
– 83 –  
FILE NO. SVM-12004  
11-2. Address Setting and Group/Twin/Triple Control  
<Definition of terms>  
Indoor unit No.  
Group address  
: N-n=O/U refrigerant line address N (30 max.) -I/U address n (64 max.)  
: 0=Individual (without group control)  
1=Header unit under group control  
2=Follower units under group control  
Header indoor unit (=1) : A representative unit of multiple indoor units in group operation, which performs  
communication between remote controller and follower I/U.  
(* It does not mean an indoor unit that communicates with O/U.)  
Operation mode and setting temperature range (except louver air flow control) of  
header unit are reflected on the LCD of remote controller.  
Follower indoor unit (=2) : Indoor units except header unit in group operation.  
It does not control communication with remote controller in principle (except  
response to alarm/service data request).  
Main unit  
(Representative)  
(Twin header)  
: In a minimal configuration of refrigerant cycle such as twin, triple or double twin,  
an indoor unit which communicates with O/U among those with same refrigerant  
line address.  
Communicates with sub indoor units and with O/U (instructions to compressor)  
on behalf of cycle control.  
Sub indoor unit  
(Sub unit)  
(Twin follower)  
: Indoor units except the main indoor unit in a twin, triple or double twin system.  
Communicates with the main indoor unit with the same refrigerant line address,  
and provides control in synchronization with the main indoor unit.  
It does not communicate with O/U (no detection of serial signal alarm).  
[1] System Configuration  
a) Single  
b) Twin, triple, double twin  
Outdoor  
unit  
Indoor  
unit  
1:1  
individual  
1-2  
H/M  
1-1  
F/S  
1-4  
F/S  
1-3  
F/S  
(H/M)  
Remote  
controller  
c) Single group operation  
2-1  
F/M  
1-1  
F/M  
4-1  
H/M  
3-1  
F/M  
8-1  
F/M  
Each indoor unit controls outdoor unit individually.  
d) Multiple single/twin/triple group operation (manual address setting)  
H : Header indoor unit  
F : Follower indoor unit  
M : Main indoor unit  
S : Sub indoor unit  
2-1  
F/M  
1-1  
F/M  
1-2  
F/S  
1-3  
F/S  
3-3  
H/M  
3-4  
F/S  
3-2  
F/S  
3-1  
F/S  
• Main indoor unit : Receives data (thermo status, etc.) from sub indoor units with same refrigerant line  
address, and controls O/U compressor referring to the self thermo status. Transmits this  
instruction to sub units.  
• Sub indoor unit : Receives data from the main indoor unit with same refrigerant line address and serial  
interface with O/U, and performs thermo operation in synchronization with the main unit.  
Sends self thermo ON/OFF request to the main unit.  
(Example) 1-1 main unit communicates with 1-2 and 1-3 sub units without being affected  
by indoor units with refrigerant line address 2 or 3.  
– 84 –  
FILE NO. SVM-12004  
[2] Examples of Aut Address Setting fro No Address Setting  
1) Standard (one outdoor unit)  
a) Single  
b) Twin  
c) Double twin  
(1-1)  
(1-2)  
(1-1)  
(1-2)  
(1-3)  
(1-4)  
1-1  
individual  
1-2  
H/M  
1-1  
F/S  
1-2  
F/M  
1-1  
F/S  
1-3  
H/S  
1-4  
F/S  
(H/M)  
***Turn ON the power. Address setting is completed automatically.***  
2) Group operation (multiple O/U = multiple indoor units with serial communication interface, no twin)  
2-1  
1-1  
3-1  
8-1  
F/M  
F/M  
H/M  
F/M  
8 indoor units maximum  
***Turn ON the power. Address setting is completed automatically.***  
3) Multiple group operation  
A (single)  
B (triple)  
C (double twin)  
2-1  
F/M  
1-1  
F/M  
2-1  
F/S  
3-3  
H/S  
3-1  
F/M  
2-2  
F/S  
1-2  
F/S  
3-2  
F/S  
*** Address change required ***  
Change sub unit addresses  
at the same time manually  
from remote controller.  
2-1  
1-1  
1-2  
1-3  
3-1  
3-2  
3-3  
3-4  
H : Header indoor unit  
F : Follower indoor unit  
M : Main indoor unit  
S : Sub indoor unit  
– 85 –  
FILE NO. SVM-12004  
11-3. Address Setting  
When determining indoor unit addresses with wiring completed without piping construction  
(Manual setting by remote controller)  
<Address setting procedure>  
• Connect a remote controller to the indoor unit whose  
address you want to set one to one.  
Wiring example of 2 refrigerant systems  
(Solid line: wiring, broken line: refrigerant piping)  
• Turn ON the power.  
SET  
CL  
Push TEST  
,
, and  
on the remote controller  
O/U  
O/U  
1
simultaneously for 4 seconds or more.  
Refrigerant  
line address →  
(Power cable only)  
TEMP.  
2
3
Set code 12 with  
buttons.  
(Power cable only)  
TIME  
Set a refrigerant line address with  
buttons.  
SET  
I/U  
I/U  
I/U  
I/U  
I/U  
4
Push  
operation.  
Indication on the LCD shows normal  
Refrigerant line  
address  
Indoor unit  
address →  
1
1
1
1
2
2
1
3
2
2
1
2
2
2
2
TEMP.  
Indoor unit address  
5
6
Set code 13 with  
buttons.  
Group address  
TIME  
Set indoor unit addresses with  
tons.  
but-  
For systems like this example, connect  
a wired remote controller independently  
without connecting remote controller wires,  
and then set these addresses.  
SET  
7
Push  
operation.  
Indication on the LCD shows normal  
Group  
address →  
Group address  
TEMP.  
Individual: 0000  
8
9
Set code 14 with  
buttons.  
Header unit: 0001  
Follower unit: 0002  
in case of group control  
TIME  
Set indoor unit addresses with  
as follows:  
buttons  
CODE No.  
Individual= 0000 , header unit= 0001 , follower  
SET DATA SETTING  
UNIT No.  
R.C. No  
unit= 0002  
SET  
10  
11  
Push  
normal operation.  
Push TEST  
Indoor unit address setting is completed.  
The operation mode returns to normal OFF.  
Indication on the LCD shows  
ON / OFF  
.
AN  
VE  
MODE  
VENT  
FILTER  
RESET TEST  
SET  
CL  
SWING/FIX  
UNIT LOUVER  
8, 5, 2 4, 3, 6, 9  
7,  
10  
END  
11 1  
Operation procedure  
→
→
→
→
→
→
1 2 3 4 5 6 7  
→
→
→
END  
8 9 10 11  
– 86 –  
FILE NO. SVM-12004  
n Checking location of indoor unit number  
(1)To find the address of indoor unit whose location is clear  
In case of independent operation  
(1:1 connection of wired remote controller and indoor unit)  
Perform the procedure during operation of indoor unit.  
<Procedure>  
ON / OFF  
1
2
When the indoor unit is not working, push  
remote controller.  
on the  
CODE No.  
UNIT No.  
UNIT LOUVER  
Push  
.
R.C. No  
C
UNIT No. 1-1 appears on the LCD and disappears in several  
ON / OFF  
seconds.  
The displayed number shows the refrigerant line address and  
indoor unit address.  
N
MODE  
VENT  
VE  
When other indoor units are connected to the same remote control-  
FILTER  
RESET  
G/FIX  
UNIT LOUVER  
ler (group control), their unit numbers are displayed in order each  
UNIT LOUVER  
time  
is pushed.  
Operation procedure  
(2)To find the location of indoor unit from its address  
When checking indoor unit number in the group.  
→
1 2  
1 2  
Perform the procedure while the indoor unit is not working.  
This procedure stops operation of all indoor units in the group.  
<Procedure>  
Indoor unit numbers appear one by one and the fan and louver of  
the displayed unit run.  
VENT  
TEST  
1
2
3
Push  
for 4 seconds or more.  
• UNIT No. appears.  
and  
on the remote controller simultaneously  
CODE No.  
SET DATA SETTING  
UNIT No.  
• The fan and louver of all indoor units in the group run.  
R.C. No.  
UNIT LOUVER  
Each pushing of  
on the remote controller displays  
unit numbers in the group sequentially.  
• The header unit address appears first.  
• The fan and louver of a selected indoor unit run.  
TEST  
ON / OFF  
TIME  
SET  
AN  
MODE  
VENT  
SAVE  
Push  
to finish the procedure. Operation of all the indoor  
FILTER  
RESET TEST  
CL  
SWING/FIX  
UNIT LOUVER  
units in the group turns OFF.  
2
3
1
END  
Operation procedure  
→
→
END  
1 2 3  
– 87 –  
FILE NO. SVM-12004  
12. DETACHMENTS  
High WallType  
RAV-SM566KRT-E(TR), RAV-SM806KRT-E(TR)  
WARNING  
• Since high voltages pass through the electrical parts, turn off the power without fail before proceeding with  
the repairs. Electric shocks may occur if the main power supply switch or breakers are not turned off.  
• After the repairs have been completed (after the front panel and cabinet have been installed), perform a test  
run, and check for smoking, unusual sounds and other abnormalities.  
If this check is omitted, a fire and/or electric shocks may occur.  
Before proceeding with the test run, install the front panel and cabinet.  
• Ensure that the following steps are taken when doing repairs on the refrigerating cycle.  
1. Do not allow any naked flames in the surrounding area.  
If a gas stove or other appliance is being used, extinguish the flames before proceeding.  
If the flames are not extinguished, they may ignite any oil mixed with the refrigerant gas.  
2. Do not use welding equipment in an airtight room.  
Carbon monoxide poisoning may result if the room is not properly ventilated.  
3. Do not bring welding equipment near flammable objects.  
Flames from the equipment may cause the flammable objects to catch fire.  
• If keeping the power on is absolutely unavoidable while doing a job such as inspecting the  
circuitry, wear rubber gloves to avoid contact with the live parts.  
Electric shocks may be received if the live parts are touched.  
High-voltage circuits are contained inside this unit.  
Proceed very carefully when conducting checks since directly touching the parts on the control circuit board  
may result in electric shocks.  
– 88 –  
FILE NO. SVM-12004  
No. Part name  
Procedures  
Remarks  
Front panel 1) Stop operation of the air conditioner and  
turn off its main power supply.  

2) Open the air inlet grille, push the arm  
toward the outside, and remove the grille.  
3) Push “PUSH” part under the front panel and  
remove hooks of the front panel from the  
installation plate.  
Installation plate  
Front panel  
Push  
4) Remove the front panel fixing screws.  
(4 pcs.)  
5) Take off 4 hooks of panel from rear side.  
4 screws  
4 hooks  
<How to assemble the front panel>  
1) Push 3 center positions and 2 lower center  
positions of the air outlet, and then hang  
the hanging hooks (4 pcs.) at the top side  
of the front panel to the rear plate.  
2) Tighten four screws.  
• Incomplete hanging or incomplete  
pushing may cause a dewdrops or  
generation of a fluttering sound.  
– 89 –  
FILE NO. SVM-12004  
No.  
Part name  
Procedures  
Remarks  
Electric parts 1) Perform work of item  
assembly  
.
‚

Drain guide  
fixing sscrew  
Drain guide  
Connectoor cover  
fixingg screw  
2) Take off drain guide fixing screws (2pcs)  
3) Pull out TC and TCJ sensors from the  
senser holder of the heat exchanger.  
(When reassembling the elect parts ,be  
careful to the attaching positions of every  
seneor. TC and TCJ sensors resemble in the  
shapes , so distinct them by making ,etc.  
when mounting them.)  
Connector  
cover  
Earth screw  
4) Take off the connentor cover mounting screw  
(1pc.) and then remove the connector cover.  
TCJ sensor  
(Ø6 sleeve provided)  
5) Take off the clamp base mounting screw  
(1pc.) and then remove the clamp base.  
6) Remove the fan motor connector (5P) and  
the connector for louver motor (5P) from the  
P.C. board.  
7) Disengage the display unit by simply  
pushing at the top of the display unit.  
TC sensor  
(Ø6 sleeve not provided)  
8) Remove the fixing screw that secures the  
electrical parts box assembly, LED assembly  
and remove the assembly.  
Clamp base  
Fixingg screw  
Fan motor  
connector  
Louver  
motor  
conneector  
Horizontal  
louver  
1) Remove shaft of the horizontal louver from  
the back body. (First remove the left shaft,  
and then remove other shafts while sliding  
the horizontal louver leftward.)  
ƒ
– 90 –  
FILE NO. SVM-12004  
No.  
Part name  
Evaporator  
Procedures  
Remarks  
1) Follow to the procedure in the item  
2) Remove the pipe holder from the rear  
side of the main unit.  
.
„
ƒ
(Heat exchanger)  
3) Remove 2 fixing screws at the left side  
of the end plate of the heat exchanger.  
2 screws  
4) Remove 2 fixing screws on the heat  
exchager fixing holder to separate the  
heat exchanger from the back body.  
Screw  
Screw  
– 91 –  
FILE NO. SVM-12004  
No.  
Part name  
Bearing  
Procedures  
Remarks  
1) Follow to the procedure in the item  
2) Remove the 2 screws used to secure  
the bearing base.  
.
ꢀ
„
3) Remove the bearing base.  
2 screws  
Bearing base  
<Caution at assembling>  
• If the bearing is out from the housing,  
push it into the specified position and  
then incorporate it in the main body.  
Bearing  
– 92 –  
FILE NO. SVM-12004  
No.  
Part name  
Procedures  
Remarks  
Fan motor  
1) Follow to the procedure till item  
2) Loosen the set screw of the cross flow fan.  
.
†
„
3) Remove 2 fixing screws of the motor cover  
and them remove the motor cover.  
4) Remove 2 more fixing screws of the motor  
band and remove the motor band.  
Set screw  
2 screws  
on motor cover  
2 screws  
on motor band  
5) Pull the fan motor outward.  
– 93 –  
FILE NO. SVM-12004  
No. Part name  
Procedures  
Remarks  
Cross flow <Caution at reassembling>  
‡
fan  
1) To incorporate the fan motor, remove the  
fan motor rubber (at shaft core side),  
incorporate the motor into the position in  
the following figure, and then install the fan  
motor.  
5.0mm  
• Install the cross flow fan so that the right  
end of the 1st joint from the right of the  
cross flow fan is set keeping 5 mm from  
wall of rear plate of the main unit.  
• Holding the set screw, install the cross  
flow fan so that U-groove of the fan motor  
comes to the mounting hole of the set  
screw.  
• Perform positioning of the fan motor as  
follows:  
• When assembling the fan motor, the fan  
motor must be installed in such a way that  
the fan motor leads will be taken out is  
positioned at the bottom front.  
• After assembling the 2 fixing screws of  
the motor band (right) into the main body,  
position the fan motor, insert it, and then  
secure the motor band (right) using the  
2 fixing screws.  
– 94 –  
FILE NO. SVM-12004  
13. EXPLODED VIEWS AND PARTS LIST  
High WallType  
Model: RAV-SM566KRT-E(TR), RAV-SM806KRT-E(TR)  
CAUTION  
For orders of the service parts for High Wall type air conditioners, please check the service parts on Web site of  
[TOSHIBA CARRIER THAILAND CO., Ltd.], and then place an order for parts to (TOSHIBA CARRIER THAILAND CO., Ltd.).  
Location  
No.  
Part  
No.  
Location  
No.  
Part  
No.  
Description  
Description  
201  
202  
203  
204  
205  
43T21032 MOTOR, FAN  
43T22312 BEARING ASSY, MOLD  
43T70313 HOSE, DRAIN  
43T20016 FAN, ASSY, CROSS FLOW  
43T49010 PIPE, SHIELD  
(FOR RAV‐SM566KRT‐E,‐TR)  
43T83003 HOLDER, REMOTE CONTROL  
43T82011 PLATE, INSTALLATION  
43T85527 OWNER'S MANUAL  
(FOR RAV‐SM566,806KRT‐TR)  
43T19333 HOLDER, SENSOR  
43T49043 HOLDER, PIPE  
43T39024 DRAIN GUIDE  
43T22011 BEARING, BASE  
43T49045 PIPE, SHIELD  
222  
223  
224  
225  
226  
227  
43T39026 BAND, MOTOR, LEFT  
43T39023 BAND,MOTOR, RIGHT DOWN  
43T39022 BAND, MOTOR, RIGHT UP  
43T09040 LOUVER, HORIZONTAL  
43T03020 BODY, ASSY, BACK  
43T44476 EVAPORATOR, ASSY  
(FOR RAV‐SM806KRT‐E,‐TR)  
43T44477 EVAPORATOR, ASSY  
(FOR RAV‐SM566KRT‐E,‐TR)  
43T09439 GRILLE OF AIR INLET ASSY  
43T80019 AIR FILTER  
206  
207  
208  
228  
229  
230  
231  
232  
233  
234  
209  
210  
211  
212  
214  
43T00057 PANEL ASSY  
43T62031 COVER, TERMINAL  
43T66304 REMOCON‐WRS  
43T85526 OWNER'S MANUAL  
(FOR RAV‐SM566,806KRT‐E)  
(FOR RAV‐SM806KRT‐E,‐TR)  
43T62032 CLAMP BASE ASSY  
43T79313 CAP, DRAIN  
215  
218  
235  
43T15002 DISPLAY  
– 95 –  
FILE NO. SVM-12004  
Electric Parts  
CAUTION  
For orders of the service parts for High Wall type air conditioners, please check the service parts on Web site of  
[TOSHIBA CARRIER THAILAND CO., Ltd.], and then place an order for parts to (TOSHIBA CARRIER THAILAND CO., Ltd.).  
Location  
No.  
Part  
No.  
Location  
No.  
Part  
No.  
Description  
Description  
401  
402  
403  
43T50304 SENSOR;HEAT EXCHANGER  
43T69320 TEMPERATURE SENSOR  
43T60047 TERMINAL  
404  
405  
406  
43T60079 TERMINAL BLOCK  
43T69979 PC BOARD ASSY  
43T69084 PC BOARD ASSY, WRS‐LED  
– 96 –  
FILE NO. SVM-12004  
– 97 –  
FILE NO. SVM-12004  
– 98 –  
FILE NO. SVM-12004  
r e m o  
0 5 m m o r  
e
m o r  
5 0 m m  
r e m o  
o r m m 2 0  
r o  
e
m o r  
r o  
5 m 8 m 6 .  
– 99 –  
FILE NO. SVM-12004  
– 100 –  
FILE NO. SVM-12004  
– 101 –  
FILE NO. SVM-12004  
– 102 –  
FILE NO. SVM-12004  
– 103 –  
FILE NO. SVM-12004  
– 104 –  
FILE NO. SVM-12004  
– 105 –  
FILE NO. SVM-12004  
– 106 –  
FILE NO. SVM-12004  
– 107 –  
FILE NO. SVM-12004  
– 108 –  
FILE NO. SVM-12004  
– 109 –  
FILE NO. SVM-12004  
– 110 –  
FILE NO. SVM-12004  
WARNINGS ON REFRIGERANT LEAKAGE  
Important  
Check of Concentration Limit  
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.  
NOTE 2 :  
The standards for minimum room volume are as follows.  
1) No partition (shaded portion)  
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. 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.  
Most importantly, the multi air conditioner system is able  
to replenish a large amount of refrigerant compared with  
conventional individual air conditioners. 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).  
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  
Refrigerant piping  
Indoor unit  
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.  
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.  
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.  
Total amount of refrigerant (kg)  
Min. volume of the indoor unit installed room (m³)  
≤ Concentration limit (kg/m³)  
Refrigerant piping  
Outdoor unit  
The concentration limit of R410A which is used in multi  
air conditioners is 0.3kg/m³.  
Very  
small  
Indoor unit  
room  
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  
(countermeasures  
needed)  
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.  
0
10  
20  
30  
Total amount of refrigerant  
kg  
– 111 –  
TOSHIBA CARRIER CORPORATION  

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