Toshiba RAV-RM2801DTP-E, RAV-RM2241DTP-TR, RAV-RM2801DTP-TR, RAV-SM2244AT8-A1, RAV-SM2804AT8-A1 Service Manual

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FILE NO. SVM-19066

SERVICE MANUAL

AIR-CONDITIONER

SPLIT TYPE

INDOOR UNIT <DIGITAL INVERTER>

Concealed Duct High Static Pressure Type

RAV-RM2241DTP Series RAV-RM2801DTP Series

R32 or R410A

March, 2019

CONTENTS

- 2 -

Definition of Qualified Installer or Qualified Service Person....................... 4

Warning Indications on the Air Conditioner Unit .......................................... 6

Precaution for Safety ....................................................................................... 7

Refrigerant (R32 or R410A) ............................................................................ 14

SPECIFICATION ...................................................................................... 16

FAN CHARACTERISTICS ......................................................................... 19

CONSTRUCTION VIEWS (EXTERNAL VIEWS) ...................................... 20

WIRING DIAGRAM................................................................................... 22

5. PARTS RATING ........................................................................................ 23

CONTROL BLOCK DIAGRAM................................................................. 24

1. Indoor Controller Block Diagram .................................................................... 24

2. Control Specifications ...................................................................................... 27

6-3. Indoor Print Circuit Design Board ................................................................... 36

TROUBLESHOOTING .............................................................................. 40

1. Summary of Troubleshooting ......................................................................... 40

2. Check Code List (Indoor) ................................................................................. 45

3. Diagnostic Procedure for Each Check Code (Indoor Unit) ........................... 50

REPLACEMENT OF SERVICE P.C. BOARD .......................................... 63

8-1. Indoor control P.C. Board ............................................................................... 63

2. Fan IPDU P.C. Board (MMC-1610) ................................................................... 68

SETUP AT LOCAL SITE AND OTHERS ................................................ 69

1. Indoor Unit......................................................................................................... 69

2. Setup at Local Site / Others ............................................................................. 79

3. How to Set up Central Control Address Number ........................................... 81

10. ADDRESS SETUP.................................................................................... 83

10 - 1. Address Setup ................................................................................................ 83

10 - 2. Address Setup & Group Control.................................................................... 84

10 - 3. Address Setup (Manual Setting from Remote Controller)........................... 86

10 - 4. Confirmation of indoor unit No. position...................................................... 87

DETACHMENTS ..................................................................................... 88

11.

EXPLODED VIEWS AND PARTS LIST ....................................................100

- 3 -

12.

12 - 1. RAV-RM2241DTP-E(TR), RAV-RM2801DTP-E(TR) ....................................... 100

12 - 2. Drain pump kit (TCB-DP40DPE) .................................................................... 102

12 - 3. Electric Parts .................................................................................................. 103

Original instruction

- 4 -

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

Qualified installer

or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work.

• The qualified installer who is allowed to do the refrigerant handling and piping work involved in installation, relocation and removal has the qualifications pertaining to this refrigerant handling and piping work as stipulated by the local laws and regulations, and he or she is a person who has been trained in matters relating to refrigerant handling and piping work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work.

• The qualified installer who is allowed to work at heights has been trained in matters relating to working at heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work.

Qualified service person

• 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.

• 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.

Definition of Protective Gear

- 5 -

When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work 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

Electrical-related work

Work done at heights (50 cm or more)

Transportation of heavy objects Repair of outdoor unit

The important contents concer ned 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]

clothing.

Protective gear worn

Protective gloves ‘Safety’ working clothing

Gloves to provide protection for electricians Insulating shoes Clothing to provide protection from electric shock

Helmets for use in industry Shoes with additional protective toe cap

Gloves to provide protection for electricians

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DANGER

WARNING

CAUTION

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.

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.

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]

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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.

MEANING OF SYMBOLS DISPLAYED ON THE UNIT

WARNING

(Risk of fire)

Read the OWNER'S MANUAL carefully before operation.

Service personnel are required to carefully read the OWNER'S MANUAL and INSTALLATION MANUAL

before operation.

Further information is available in the OWNER'S MANUAL, INSTALLATION MANUAL, and the like.

This mark is for In case that refrigerant type is R32, this unit uses a flammabl Ir refrigerant leaks and comes in contact with fire or heating there is risk of fire.

R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.

e refrigerant.

par

t, it will create harmful gas and

Warning Indications on the Air Conditioner Unit

- 6 -

[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.

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.

CAUTION

Do not climb onto the fan guard.

Doing so may result in injury.

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.

CAUTION

Do not climb onto the fan guard.

Doing so may result in injury.

PRECAUTIONS FOR SAFETY

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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

Turn off

breaker

Electric

shock hazard

Prohibition

Stay on

protection

breaker for both the indoor and outdoor units to the OFF position. Otherwise, electric shoc result.

Before opening the electrical box cover of the indoor unit or service panel of the outdoor unit, set the circuit breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result in electric shocks through contact with the interior parts. Only a qualified installer (*1) or qualified service person (*1) is allowed to remove the intake grille of the indoor unit or service panel of the outdoor unit and do the work required.

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.

Before opening the inspection opening, set the circuit breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result in injury through contact with the rotation parts. Only a qualified installer (*1) or qualified service person(*1) is allowed to remove the inspection opening and do the work required.

When cleaning the filter (sold separately) 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.

When you have noticed that some kind of trouble (such as when check code display has appeared, there is a smell of burning, abnormal sounds are heard, the air conditioner fails to cool or heat or water is leaking) has occurred in the air conditioner, do not touc the circuit breaker to the OFF position, and contact a qualified service person. Take steps to ensure that the power will not be turned on (by marking “out of service” near the circuit breaker, for instance) until qualified service person arrives. Continuing to use the air conditioner in the trouble status may cause mechanical problems to escalate or result in electric shocks or other failure.

When you access inside of the service panel to repair electric parts, wait for about five minutes after turning off the breaker. Do not start repairing immediately.Otherwise you may get electric shock by touching terminals of high-voltage capacitors. Natur al discharge of the capacitor tak es about five minutes.

When checking the electric parts, removing the cover of the electric parts box of Indoor Unit and/or service panel of Outdoor Unit inevitably to determine the failure, use gloves to provide protection for electricians, insulating shoes, clothing to provide protection from electric shock and insulating tools. Be careful not to touch the live part. Electric shock may result. Only “Qualified service person” is allowed to do this work.

Before operating the air conditioner after having completed the work, check that the electrical partw 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 on electric shock if the power is turned on without first conducting these checks.

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.

When checking the electric parts, removing the cover of the electric parts 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.

Before operating the air conditioner after having completed the work, check that the electrical parts 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.

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with the electrical parts box cover of one or more of the indoor units and the service panel of the outdoor unit removed in order to find out exactly where the trouble lies, wear insulated heat-resistant gloves, insulated boots and insulated work overalls, and take care to avoid touching any live parts. You may receive an electric shock if you fail to heed this warning. Only qualified service person (*1) is allowed to do this kind of work.

h the air conditioner yourself but set

ks may

W ARNIG

- 8 -

General

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.

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 part, do not remove the electrical control box cover 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 or a qualified service person.

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 the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ wor k clothing.

To connect the electrical wires, repair the electrical par ts or undertake other electrical jobs, wear gloves to provide protection for electricians, insulating shoes and clothing to provide protection from electric shocks. Failure to wear this protective gear may result in electric shocks.

When checking the electric parts, removing the cover of the electric parts box of Indoor Unit and/or front panel of Outdoor Unit inevitably to determine the failure, put a sing "Do not enter" around the site before the work. Failure to do this may result in third person getting electric shock.

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.

Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws. Use of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and/or a fire.

Only a qualified installer (*1) or qualified service person (*1) is allowed to undertake work at heights using a stand of 50 cm or more or to remove the intake grille of the indoor unit to undertake work.

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.

Before 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 carr ying out the work, wear a helmet for protection from falling objects.

When executing address setting, test run, or troubleshooting through the checking window on the electric parts box, put on insulated gloves to provide protection from electric shock. Otherwise you may receive an electric shock.

Do not touch the aluminum fin of the 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.

Check earth

wires.

Use forklift to carry in the air conditioner units and use winch or hoist at installation of them. When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and other

protective clothing. 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. 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 earth wires are connected properly. Be sure to connect earth wire. Incomplete earthing causes an electric shock. Do not connect earth

wires to gas pipes, water pipes, and lightning rods or

earth wires for telephone wires.

Prohibition of

- 9 -

modification.

Use specified

parts.

Do not bring

a child close

to the

equipment.

Do not modify the products.Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury.

When any of the electrical parts are to be replaced, ensure that the replacement par ts 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.

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with the electrical parts box cover of one or more of the indoor units and the service panel of the outdoor unit removed in order to find out exactly where the trouble lies, put a sign in place so that noone 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.

Insulating measures

No fire

Refrigerant

Connect the cut-off lead wires with crimp contact, etc., put the closed end side upward and then apply a water cut method, otherwis

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 bef ore w ork; 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.

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 R32 or R410A Check the used refrigerant name and use tools and materials of the parts which match with it.

For the produc on the outdoor unit where is easy to see. To prevent miss-charging, the route of the service port is changed from one of the former R22.

Do not use any refrigerant different from the one specified for complement or replacement. Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in a failure or explosion of the product or an injury to your body.

For

an air conditioner which uses R32 or R410A, never use other refrigerant than R32 or R410A. For an air conditioner which uses other refrigerant (R22, etc.), never use R32 or 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.

When the air conditioner has been installed or relocated, follow the instructions in the Installation Manual and purge the air completely so that no gases other than the refrigerant will be mixed in the refrigerating cycle. Failure to purge the air completely may cause the air conditioner to malfunction.

Do not charge refrigerant additionally. If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury. Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute vacuuming, and then newly recharge the specified amount of liquid refrigerant. In this time, never charge the refrigerant over the specified amount.

When recharging the refrigerant in the r R32 or 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.

ts which use R32 or R410A refrigerant, the refrigerant name is indicated at a position

e a leak or production of fire is caused at the users’ side.

efrigerating cycle, do not mix the refrigerant or air other than

Assembly /

- 10 -

Wiring

Insulator

check

Ventilation

Compulsion

Check after

repair

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.

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.

When the refrigerant gas leaks during work, execute ventilation. If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant and the closed room full with gas is dangerous because a shortage of oxygen occurs. Be sure to execute ventilation.

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.

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.

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 shoc k or fire is caused. 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.

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 ex ecuted, a fire or an electric shock is caused. Bef ore test run, install the front panel and cabinet.

Be sure to fix the screws back which have been removed for installation or other purposes.

Do not

operate the

unit with the

valve closed.

Check after

reinstallation

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.

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.

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.

Cooling check

- 11 -

Installation

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.

Take care not to get burned by compressor pipes or other parts when checking the cooling cycle while running the unit as they get heated while running. Be sure to put on gloves providing protection for heat.

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. 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 or service person is allowed to do installation work. Inappropriate installation may result in water leakage, electric shock or fire.

Before starting to install the air conditioner, read carefully through the Installation Manual, and follow its instructions to install the air conditioner.

Be sure to use the company-specified products for the separately purchased parts. Use of nonspecified products may result in fire, electric shock, water leakage or other failure. Have the installation performed by a qualified installer.

Do not install the air conditioner in a location that may be subject to a risk of expire to a combustible gas . If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.

Install the indoor unit at least 2.5 m above the floor level since otherwise the users may injure themselves or receive electric shocks if they poke their fingers or other objects into the indoor unit while the air conditioner is running.

Install a circuit breaker that meets the specifications in the installation manual and the stipulations in the local regulations and laws.

Install the circuit breaker where it can be easily accessed by the agent. If you install the unit 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”

Declaration of Conformity

- 12 -

Manufacturer:

TCF holder: TOSHIBA CARRIER EUROPE S.A.S.

Hereby declares that the machinery described below: Generic Denomination: Air Conditioner Model / type:

TOSHIBA CARRIER (THAILAND) CO., LTD.

144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand

Route de Thil 01120 Montluel FRANCE

RAV-RM2241DTP-E, RAV-RM2241DTP-TR RAV-RM2801DTP-E, RAV-RM2801DTP-TR

Commercial name:

plies with the provisions of the Machinery Directive (Directive 2006/42/EC) and the regulations

Com tra

nsposing into national la

“Declaration of incorporation of partly completed machinery”

Must not be put into service until the final machinery into which it is to be incorporated has been declared in conformity with the provisions of this Directive, where appropriate.

Digital Inverter Series Air Conditioner

NOTE

This declaration becomes invalid if technical or operational modifications are introduced without the manufacturer’s consent.

Specifications

- 13 -

Model

RAV-RM2241DTP-E

RAV-RM2801DTP-E

RAV-RM2241DTP-TR

RAV-RM2801DTP-TR

Sound pressure level (dBA)

Cooling Heating

Weight (kg)

Main unit

Refrigerant (R32 or R410A)

- 14 -

This air conditioner adopts

a HFC type refrigerant (R32 or R410A) which does not deplete the ozone layer.

1. Safety Caution Concerned to refrigerant (R32 or R410A)

The pressure of R32 or R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with refrigerant (R32 or R410A) during installation work or service work. If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident. Use the tools and materials exclusive to R32 or R410A to purpose a safe work.

2. Cautions on Installation/Service

1) Do not mix the other refrigerant or refrigerating oil. For the tools exclusive to R32 or R410A, shapes of all the joints including the service port differ from those of the former refrigerant in order to prevent mixture of them.

2) As the use pressure of the refrigerant (R32 or R410A) is high, use material thickness of the pipe and tools which are specified for R32 or R410A.

3) In the installation time, use clean pipe materials and work with great attention so that water and others do not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean pipes. Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)

4) For the earth protection, use a vacuum pump for air purge.

5) R32 or R410A refrigerant is azeotropic mixture type refrigerant.

Therefore use liquid type to charge the refrigerant. (If using gas for charging, composition of the refrigerant changes and then characteristics of the air conditioner change.)

3. Pipe Materials

For the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to a minimum.

1) Copper pipe

The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type. When using a long copper pipe for R32 or R410A, it is recommended to select “Copper or copperbase pipe without seam” and one with bonded oil amount 40mg/10m or less.

Also do not use crushed, deformed, discolored (especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.)

Use the flare nuts which are attached to the air conditioner unit.

2) Joint

The flare joint and socket joint are used for joints of the copper pipe. The joints are rarely used for installation of the air conditioner. However clear impur ities when using them.

4. Tools

- 15 -

1. Required Tools for R32 or R410A Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.

1) Tools exclusive for R32 or R410A (Those which cannot be used for conventional refrigerant (R22))

2) Tools exclusive for R32 or R410A, but can be also used for conventional refrigerant (R22)

3) Tools commonly used for R32 or R410A and for conventional refrigerant (R22) The table below shows the tools exclusive for R32 or R410A and their interchangeability.

Tools exclusive for R32 or R410A (The following tools for R32 or R410A are required.)

Tools wh

No. Used tool

Flare tool Pipe aring Yes Yes

Copper pipe gauge for adjusting projection margin

Torque wrench Tightening of are nut Yes No No

Gauge manifold

Charge hose

Vacuum pump adapter Vacuum evacuating Yes No

Electronic balance for refrigerant charging

Refrigerant cylinder Refrigerant charge Yes No No

Leakage detector Gas leakage check Yes No Yes

ose specifications are changed for R32 or R410A and their interchangeability

R32 or R410A

air conditioner installation

Usage

Flaring by conventional are tool

Evacuating, refrigerant charge, run check, etc.

Refrigerant charge Yes Yes Yes

Existence of

new equipment

for R32 or R410A

Yes

Yes No No

Whether conventional

equipment can be used

* (Note)

Conventional air

conditioner installation

Whether

conventional equipment

can be used

* (Note)

Yes

(Note) When flaring is

carried out for R32 or R410A using the conventional flare tools, adjustment of projection

margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools.

1) Vacuum pump. Use vacuum pump by attaching vacuum pump adapter. 7) Screwdriver (+, –)

2) Torque wrench 8) Spanner or Monkey wrench

3) Pipe cutter 9) Hole core drill

4) Reamer 10) Hexagon wrench (Opposite side 4mm)

5) Pipe bender 11) Tape measure

6) Level vial 12) Metal saw

Also prepare the following equipments for other installation method and run check.

1) Clamp meter 3) Insulation resistance tester (Megger)

2) Thermometer 4) Electroscope

1. SPECIFICATIONS

- 16 -

Concealed Duct Static Pressure Type

Model name

Cooling capacity …Note 1 (kW) 20.0 23.7 Heating capacity …Note 1 (kW) 22.4 27.0 Electrical Cooling Indoor Unit Power supply 1phase 50Hz 230V(220V-240V) characteristics Running current (220V-240V) (A) 2.80 (2.93-2.68) 3.75 (3.92-3.59) (factory setting) Power consumption (kW) 0.530 0.785

Heating Indoor Unit Power supply 1phase 50Hz 230V(220V-240V)

Maximum Indoor Unit starting current (A) 8.15 8.15

Current Outdoor Unit starting current (A) 18.0 20.0 Appearance Zinc hot dipping steel plate Dimension Height (mm) 448

Weight (kg) 97 Heat exchanger Finned tube Soundproof / Heat-insulating material Polyethylene foam Fan unit Fan Centrifugal fan

Controller Remote controller Air filter Sold separately (TCB-LK2801DP-E) Drain pump Sold separately (TCB-DP40DPE) Connecting Gas side (mm) Φ28.6 pipe Liquid side (mm) Φ12.7

Sound pressure level (High/Med./Low) …Note 3 (factory setting) Sound power level (High/Med./Low) (dB(A)) 79 / 75 / 71 81 / 77 / 73

Note 1 : The cooling capacities and electrical characteristics are measured under the conditions specified by JIS B 8615 based on the reference piping.

The reference piping consists of 7.5m piping connected with 0 meter height.

Note 2 : The EER and COP are measured under conditions specified by BS EN14511(2013)

External static pressure is different from factory setting.

Note 3 : The sound level are measured in an anechoic chamber in accordance with JIS B 8616.

Normally, the values measured in the actual operating environment become larger than the indicated valves

Note : Rated conditions Cooling: Indoor air temperature 27℃

Heating: Indoor air temperature 20℃ DB, Outdoor air temperature 7℃ DB/6℃ WB

Indoor Unit RAV- Outdoor Unit RAV-

Power factor (-) 0.82 0.91

Outdoor Unit Power supply 3-phase 4 wires 50Hz 380V-415V

Running current (380V-415V) (A) 10.31-9.44 13.82-12.66 Power consumption (kW) 5.89 8.14 Power factor (-) 0.87 0.89

Total Power consumption (min-max) (kW) 6.29 (2.63-7.60) 8.75 (2.68-12.20)

EER …Note 2 3.18 2.71

Running current (220V-240V) (A) 2.80 (2.93-2.68) 3.75 (3.92-3.59) Power consumption (kW) 0.530 0.785 Power factor (-) 0.82 0.91

Outdoor Unit Power supply 3-phase 4 wires 50Hz 380V-415V

Running current (380V-415V) (A) 9.29-8.51 11.22-10.27 Power consumption (kW) 5.51 6.51 Power factor (-) 0.90 0.88

Total Power consumption (min-max) (kW) 5.91 (2.32-7.02) 7.20 (2.55-9.32)

COP …Note 2 3.79 3.75

Width (mm) 1400 Depth (mm) 900

Standard air flow 3,800 4,800 (Med./Low) (3,200 / 2,500) (4,200 / 3,500) Motor output (kW) 1kW * 1pc External static pressure (factory setting) (Pa) 150 External static pressure range (Pa) 50-83-117-150-183-217-250 (7steps)

Drain port (mm) 25(Polyvinyl chloride tube)

DB/19℃ WB, Outdoor air temperature 35℃ DB

(m3/h)

(dB(A)) 44 / 40 / 36 46 / 42 / 38

RM2241DTP-E / -TR RM2801DTP-E / -TR

SM2244AT(Z)(ZG)8-E SM2804AT(Z)(ZG)8-E

due to the effects of external soun

(50Hz)

Concealed Duct Static Pressure Type

- 17 -

Model name

Indoor Unit

Outdoor Unit Cooling capacity …Note 1 (kW) 20.0 23.7 Heating capacity …Note 1 (kW) 22.4 27.0 Electrical Cooling Indoor Unit Power supply 1phase 60Hz 220V characteristics Running current (A) 2.93 3.92 (factory setting) Power consumption (kW) 0.530 0.785

Power factor (-) 0.82 0.91

Outdoor Unit Power supply

Running current (A) 10.31 13.82 Power consumption (kW) 5.89 8.14 Power factor (-) 0.87 0.89

Total Power consumption (min-max) (kW) 6.29 (2.63-7.60) 8.75 (2.68-12.20)

EER …Note 2 3.18 2.71

Heating Indoor Unit Power supply 1phase 60Hz 220V

Running current (A) 2.93 3.92 Power consumption (kW) 0.530 0.785 Power factor (-) 0.82 0.91

Outdoor Unit Power supply

Running current (A) 9.29 11.22 Power consumption (kW) 5.51 6.51 Power factor (-) 0.90 0.88

Total Power consumption (min-max) (kW) 5.91 (2.32-7.02) 7.20 (2.55-9.32)

COP …Note 2 3.79 3.75 Maximum Indoor Unit starting current (A) 8.15 8.15 Current Outdoor Unit starting current (A) 18.0 20.0

Appearance Zinc hot dipping steel plate Dimension Height (mm) 448

Width (mm) 1400

Depth (mm) 900

Weight (kg) 97 Heat exchanger Finned tube Soundproof / Heat-insulating material Polyethylene foam Fan unit Fan Centrifugal fan

Standard air flow 3,800 4,800

(Med./Low) (3,200 / 2,500) (4,200 / 3,500)

Motor output (kW) 1kW * 1pc

External static pressure (factory setting) (Pa) 150

External static pressure range (Pa) 50-83-117-150-183-217-250 (7steps)

Controller Remote controller Air filter Drain pump Connecting Gas side (mm) Φ28.6 pipe Liquid side (mm) Φ12.7

Drain port (mm) 25(Polyvinyl chloride tube)

Sound pressure level (High/Med./Low) …Note 2 (factory setting) Sound power level (High/Med./Low) (dB(A)) 79 / 75 / 71 81 / 77 / 73

Note 1 : The cooling capacities and electrical characteristics are measured under the conditions specified by JIS B 8615 based on the reference piping.

The reference piping consists of 7.5m piping connected with 0 meter height.

Note 2 : The EER and COP are measured under conditions specified by BS EN14511(2013)

External static pressure is different from factory setting.

Note 3 : The sound level are measured in an anechoic cham ber in accordance with JIS B 8616.

Normally, the values measured in the actual operating environment become larger than the indicated valves due to the effects of external sound.

Note : Rated conditions Cooling: Indoor air temperature 27℃ DB/19℃ WB, Outdoor air temperature 35℃ DB

Heating: Indoor air temperature 20℃ DB, Outdoor air temperature 7℃ DB/6℃ WB

RAV- RM2241DTP-E RM2801DTP-E RAV- SM2244AT7 SM2804AT7

3-phase 4 wires 60Hz 380V

(m3/h)

Sold separately (TCB-LK2801DP-E)

Sold separately (TCB-DP40DPE)

(dB(A)) 44 / 40 / 36 46 / 42 / 38

(60Hz)

Concealed Duct Static Pressure Type for Australia, New zealand

- 18 -

Model name

Indoor Unit

Outdoor Unit Cooling capacity …Note 1 (kW) 16.8 20.0 Heating capacity …Note 1 (kW) 22.4 27.0 Electrical Cooling Indoor Unit Power supply 1phase 50Hz 230V-240V characteristics Running current (230V-240V) (A) 2.80-2.68 3.75-3.59 (factory setting) Power consumption (kW) 0.530 0.785

Power factor (-) 0.82 0.91

Outdoor Unit Power supply

Running current (400V-415V) (A) 7.86-7.58 9.16-8.83 Power consumption (kW) 4.71 5.62 Power factor (-) 0.86 0.89

Total Power consumption (min-max) (kW) 5.05 (2.63-7.60) 6.10 (2.68-12.20)

EER …Note 2 3.33 3.28

Heating Indoor Unit Power supply 1phase 50Hz 230V-240V

Running current (230V-240V) (A) 2.80-2.68 3.75-3.59 Power consumption (kW) 0.530 0.785 Power factor (-) 0.82 0.91

Outdoor Unit Power supply

Running current (400V-415V) (A) 8.83-8.51 10.66-10.27 Power consumption (kW) 5.51 6.51 Power factor (-) 0.90 0.88

Total Power consumption (min-max) (kW) 5.91 (2.32-7.02) 7.20 (2.55-9.32)

COP …Note 2 3.79 3.75 Maximum Indoor Unit starting current (A) 8.15 8.15 Current Outdoor Unit starting current (A) 18.0 20.0

Appearance Zinc hot dipping steel plate Dimension Height (mm) 448

Width (mm) 1400

Depth (mm) 900

Weight (kg) 97 Heat exchanger Finned tube Soundproof / Heat-insulating material Polyethylene foam Fan unit Fan Centrifugal fan

Standard air flow 3,800 4,800

(Med./Low) (3,200 / 2,500) (4,200 / 3,500)

Motor output (kW) 1kW * 1pc

External static pressure (factory setting) (Pa) 150

External static pressure range (Pa) 50-83-117-150-183-217-250 (7steps)

Controller Remote controller Air filter Drain pump Connecting Gas side (mm) Φ28.6 pipe Liquid side (mm) Φ12.7

Drain port (mm) 25(Polyvinyl chloride tube)

Sound pressure level (High/Med./Low) …Note 3 (factory setting) Sound power level (High/Med./Low) (dB(A)) 79 / 75 / 71 81 / 77 / 73

Note 1 : The cooling capacities and electrical characteristics are measured under the conditions specified by JIS B 8615 based on the reference piping.

The reference piping consists of 7.5m piping connected with 0 meter height.

Note 2 : The EER and COP are measured under conditions specified by BS EN14511(2013)

External static pressure is different from factory setting.

Note 3 : The sound level are measured in an anechoic cham ber in accordance with JIS B 8616.

Normally, the values measured in the actual operating environment become larger than the indicated valves due to the effects of external sound.

Note: Rated conditions Cooling: Indoor air temperature 27℃ DB/19℃ WB, Outdoor air temperature 35℃ DB

Heating: Indoor air temperature 20℃ DB, Outdoor air temperature 7℃ DB/6℃ WB

RAV- RM2241DTP-E RM2801DTP-E RAV- SM2244AT8-A1 SM2804AT8-A1

3-phase 4 wires 50Hz 400-415V

(m3/h)

Sold separately (TCB-LK2801DP-E)

Sold separately (TCB-DP40DPE)

(dB(A)) 44 / 40 / 36 46 / 42 / 38

(50Hz)

2. FAN CHARACTERISTICS

- 19 -

RM224 type RM280 type

350 325 300 275 250

Mid(150Pa,117Pa)

Mid(250Pa)

Mid(217Pa)

Mid(183Pa)

225

Low

200 175 150 125 100

External Static Pressure (Pa)Fan Speed (rpm)

75 50 25

Mid(83Pa)

Mid(50Pa)

1800 2200 2600 3000 3400 3800 4200 4600

Standard Air Flow : 3800 (m³/h)

Air Flow (m³/h)

High(250Pa)

High(217Pa)

High(183Pa)

High(150Pa)

High(117Pa)

High(83Pa)

High(50Pa)

350 325 300

Mid(150Pa,117Pa)

275 250 225 200 175 150 125 100

External Static Pressure (Pa)Fan Speed (rpm)

75 50 25

2800 3200 3600 4000 4400 4800 5200 5600 6000

Mid(183Pa)

Low

Mid(83Pa)

Mid(250Pa)

Mid(217Pa)

Mid(50Pa)

Standard Air Flow : 4800 (m³/h)

Air Flow (m³/h)

High(250Pa)

High(217Pa)

High(183Pa)

High(150Pa)

High(117Pa)

High(83Pa)

High(50Pa)

1500

1400

1300

1200

1100

Mid(250Pa)

Mid(217Pa)

Mid(183Pa)

Low

Standard Air Flow : 3800 (m³/h)

High(250Pa)

High(217Pa)

High(183Pa)

1000

900

800

700

Mid(150Pa,117Pa)

600

500

Mid(83Pa)

Mid(50Pa)

High(83Pa)

High(50Pa)

1800 2200 2600 3000 3400 3800 4200 4600

Air Flow (m³/h)

High(150Pa)

High(117Pa)

1500

1400

1300

1200

Mid(217Pa)

Mid(183Pa)

Low

Mid(250Pa)

Standard Air Flow : 4800 (m³/h)

High(250Pa)

High(217Pa)

High(183Pa)

High(150Pa)

1100

1000

900

800

Mid(150Pa,117Pa)

700

Mid(83Pa)

Mid(50Pa)

High(83Pa)

High(50Pa)

2800 3200 3600 4000 4400 4800 5200 5600 6000

Air Flow (m³/h)

High(117Pa)

3. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

- 20 -

500 or less

or less

190

(310)

Unit : mm

Refrigerant pipe

connecting port (Liquid side)

Drain pump kit

(sold separately)

connecting port

Drain pipe

Refrigerant pipe

221

connecting port (Gas side)

(Brazing connection)

O 28.6

(Flare nut connection)

O 12.7

321

510

300 or less

(sold separately)

When attached the drain pump kit

Drain-up piping

1/100 or more downward

310

(Accessory)

Flexible drain hose

(Accessory)

Flexible drain hose

1/100 or more downward

At the time of natural drainage

510

778

448

(Outside)

324

Drain pipe connecting port

(Gravitiational drainage)

1296(Outside)

Unit external dimension 1400 101

900 21

810

Hanging bolt mounting pitch

Air inlet

(Suction duct)

850 or more

950

Service door (Ceiling opening)

Ceiling

1465 34

448

5 or

more 70 or

Air inlet

300 or more

950

Service door (Ceiling opening)

< When attached the long life filter kit (sold separately)>

Ceiling

the service door(Ceiling opening) is not necessary.

If there are enough space under the unit (more than 1000mm)

Hanging bolt mounting pitch

200

600

1000

or more

1450

Air outlet

200 or

Ceiling

or more

Check port

Floor surface

Service door (Ceiling opening)

Air outlet

or more

2500

1000 or more

Service space

100

control box

Electrical

Space required for installation and servicing

Hole for hanging bolt

(4-Φ12×30)

Duct arrangement

- 21 -

1296(Outside)

98 100100100100100 100100 100100100100 98

Unit : mm

324

(Outside)

27 27

90 90 90

384

343

106 44

106

1316

58 200 200 200 200 200 200 58

1297

200 200 200 200 200 200

361

Electrical control box

4. WIRING DIAGRAMS

- 22 -

Color

Indication

RED : Red WHI : White YEL : Yellow BLU : Blue BLK : Black BRW : Brown

RY02

Sold Separately

RY01

WHI

RED

Drain Pump Kit

BRW

Symbol

CN**

F01,F500

L-FM

RY01,02

TB01,02

TC,TCJ

(Option)

MCC-1610

CN504

(BLU)

Fan Control P.C. Board

F500

CN500

15A

(WHI)

250V

1 3

5 4 3 2 1

CN505

(RED)

CN602

(BLK)

U V W

Noise Filter

P.C. Board

MCC-1551

CN04

CN03

CN08

Parts Name

Connector

Fuse

Fan Motor

Reactor

Rush Current

Protect Resistor

Relay

Indoor Temp Sensor

Terminal Block

Temp Sensor

Drain Pump Motor

Float Switch

1 2 3 4 5

CN705

CN704

WHI

RED

MS 3

P01

CN02

CN01

CN703

BLK

CN511

CN510

WHI

RED

Indoor Unit

Earth Screw

Drain Pump

Kit Attached

(Option)

L-FM

TB01

Power Supply

220-240V 50Hz

Outdoor Unit

CN34

(RED)

CN210

220V 60Hz

t°

t° t°

CN104

(YEL)

CN34

(RED)

CN504

(WHI)

20 19 18 17 1615

14 13 1211

CN510

(WHI)

9 8 7

6 5 4 3

2 1

7 6

5 4 3 2 1

(WHI)

F01

T6.3A

250V

RED

Power Supply

380-415V 3N 50Hz

380V 3N 60Hz

CN101

CN102

(BLK)

(RED)

(External Static Pressure Set Up)

Control P.C. Board

for Indoor Unit

CN67

(BLK)

WHI

BLK

L2L1

TCTCJ

SW501

CN71 (CHK)

CN72 (DISP)

MCC-1643

Indoor Unit

Earth Screw

Outdoor

Unit

Earth

Screw

1 2

CN22 (BLK)

Power Supply Circuit

DC15V

DC20V

CN521

(RED)

CN20 (BLU)

CN32

DC 7V

DC12V

(WHI)

CN61

(YEL)

CN50 (WHI)

BLK

Wired Remote

Field Wiring

Protective Earth

Terminal Block

Terminal

Connector

P.C.Board

Accessory

1 2 3 4 5

2 3 4 5 6 1 2 1

1 2 3 4 5

CN309

(YEL)

1 3

CN41 (BLU)

BLK

A B

Controller

UART

CN51

CN40

Connection

TB02

Wireless Remote

3 4

(RED)

(BLU)

MCC-1440

"1:1

Model"

Interface

(Option)

WHI

Adapter for

Controller

BLK

5. PARTS RATING

- 23 -

Model RAV- RM224* RM280*

Fan motor

TA sensor

TC sensor

TCJ sensor

Drain pump (option)

Float switch (option)

SWF-340W1000-1

Lead wire length:218mm

∅6 size lead wire length:1000mm Vinyl tube (Black)

∅6 size lead wire length:1000mm Vinyl tube (Red)

PCD-4N230TF-4

FS-1A-31-3

6. CONTROL BLOCK DIAGRAM

- 24 -

6-1. Indoor Controller Block Diagram

6-1-1. In Case of Connection of Wired (Simple) Remote Controller

Wired (Simple) header remote controller

(Up to 2 units) Schedule timer

Indoor unit

#1 (Header)

Indoor

fan

motor

Reactor

Drain

pump

*Option

PMV

Fan IPDU

(MCC-1610)

Fan motor

control

circuit

DC15V

Power

circuit

Noise filter

P.C. Board

(MCC-1551)

Display LCD

Display LED

EEPROM

Indoor control P.C. Board (MCC-1643)

DC20V

DC5V

DC12V

Outside output

Start/Alarm/Ready

Power

circuit

MCU

DC5V

CPU

DC5V

Remote controller

communication circuit

Remote controller

communication circuit

MCU

Driver

Power supply 1Φ 220-240V, 50Hz 1Φ 220V, 60Hz

Up to 8 units are connectable. *1

1 However, if "1:1 model connection interface" is

connected when 2 wired (simple) remote controllers are connected, Max. 7 units are connectable.

2 Connect "1:1 model connection interface" to only 1 unit and connect 1 "1:1 model connection interface" to the header unit. 3 It is unavailable to connect the Schedule remote

controller to the simple wired remote controll

Function setup

Key switch

Powe r

circuit

CN2

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

Serial

communication

circuit

Outdoor unit

Display

CN1

Indoor/Outdoor communication

LCD

DC5V

LCD

driver

CPU

Powe r circuit

(Follower)#3(Follower)

L N

Powe r

supply

Function setup

Secondary

Same as left

1 2 3

Outdoor

unit

Key switch

battery

Same as left

L N

1 2 3

Powe r

supply

Outdoor

unit

6-1-2. In Case of Connection of Wireless Remote Controller

- 25 -

Indoor unit

#1 (Header)

Indoor control P.C. Board

(MCC-1643)

DC20V

A B

Remote controller

communication circuit

Remote controller

communication circuit

Wireless remote

controller kit

Receiving P.C. Board

#2 #3

(Follower)(Follower)

Indoor

fan

motor

Drain

pump

*Option

PMV

Reactor

Fan IPDU (MCC-1610)

Fan motor

control

circuit

Power circuit

Noise filter P.C. Board

(MCC-1551)

DC15V

Power

circuit

MCU

DC5V

DC12V

output

Outside

Start/Alarm/Ready

EEPROM

TA sensor

MCU

Driver

Power supply

1Φ 220-240V, 50Hz

1Φ 220V, 60Hz

Up to 8 units are connectable. *1

1 However, if "1:1 model connection interface" is

connected when 2 wired (simple) remote controllers are connected, Max. 7 units are connectable.

2 Connect "1:1 model connection interface" to only 1 unit and connect 1 "1:1 model connection interface" to the header unit. 3 It is unavailable to connect the Schedule remote

controller to the simple wired remote controll

TC sensor

TCJ sensor

Float input

Serial

communication

circuit

Outdoor unit

Indoor/Outdoor communication

Power

circuit

DC5V

Buzzer

Receiving

circuit

CPU

Emergent operation

Function

setup SW

Display

LED

L N

Powe r supply

Same as left

1 2 3

Outdoor

unit

L N

Powe r

supply

Same as left

Outdoor

2 3

unit

6-1-3. Connection of Both Wired (Simple) Remote Controller and Wireless Remote Controller

- 26 -

Indoor unit

#1 (Header)

PMV

Wired (Simple) header remote controller

Display LCD

Display LED

Indoor control P.C. Board

(MCC-1643)

DC20V

DC5V

DC12V

Outside output

Start/Alarm/Ready

Power

circuit

EEPROM

communication circuit

Driver

CPU

DC5V

Remote controller

A B

Remote controller

communication circuit

MCU

Function setup

Key switch

Powe r

circuit

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

Serial

communication

circuit

CN2

communication circuit

Power

circuit

Buzzer

Receiving

circuit

Schedule timer

Display

CN1

Powe r

circuit

Remote controller

DC5V

CPU

LCD

DC5V

Wireless remote

controller kit

Receiving P.C. Board

Emergent operation

Function

setup SW

Display

LED

LCD

driver

CPU

Secondary

battery

#2 #3

Function setup

Key switch

Same as left

(Follower)(Follower)

Same as left

Indoor

fan

motor

Drain

pump

*Option

Reactor

Fan IPDU (MCC-1610)

Fan motor

control

circuit

Power circuit

Noise filter P.C. Board

(MCC-1551)

MCU

DC5V

DC15V

Power supply

1Φ 220-240V, 50Hz

1Φ 220V, 60Hz

Up to 8 units are connectable. *1

1 However, if "1:1 model connection interface" is

connected when 2 wired (simple) remote controllers are connected, Max. 7 units are connectable.

2 Connect "1:1 model connection interface" to only 1 unit and connect 1 "1:1 model connection interface" to the header unit. 3 It is unavailable to connect the Schedule remote

controller to the simple wired remote controll

Max. 8 units are connectable. *1 The schedule timer cannot be connected to the simple wired remote controller.

Outdoor unit

Indoor/Outdoor communication

L N

Power supply

1 2 3

Outdoor

unit

L N

Power

supply

1 2 3

Outdoor

unit

6-2. Control Specifications

- 27 -

No.

When power supply is reset

Operation mode selection

Item

Outline of specifications

1) Distinction of outdoor unit When the power supply is reset, the outdoors are distin-

guished and the control is selected according to the distinguished result.

2) Setting of indoor fan speed and existence of air direction adjustment

Based on EEPROM data, select setting of the indoor fan speed.

1) Based on the operation mode selecting command from the remote controller, the operation mode is selected.

Remote controller

command

STOP

FAN

COOL

DRY

HEAT

AUTO

• 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 +

Control outline

Air conditioner stops.

Fan operation

Cooling operation

Dry operation

Heating operation

α –1 < TA < TS + α + 1, Cooling

thermostat

volume operation continues.)

. OFF (Fan)/Setup air

Remarks

Fan speed (rpm)

TA: Room temp.

TS: Setup temp. TO: Outside temp.

Room temp. control

Cooling

1.0

TA˚C TS + α

–1.0

•

α is corrected according to the outside temperature.

Outside temp.

No TO

TO ≥ 24°C

24°C > TO ≥ 18°C

TO < 18°C

TO trouble

operation

Cooling thermostat. OFF (Fan)

• Setup air volume

Heating operation

Correction value (

–1K

+1K

αα

α)

αα

1) Adjustment range: Remote controller setup temperature ( °C )

Wired type

Wireless type

COOL/DRY

18°C to 29°C 17°C to 30°C

HEAT

18°C to 29°C 17°C to 30°C

K = deg

AUTO

18°C to 29°C 17°C to 30°C

No.

- 28 -

Room temp. control (Continued)

Automatic capacity control

(GA control)

Item

Outline of specifications

2) Using the CODE No. 06, the setup temper ature in heating operation can be corrected.

SET DA TA

Setup temp.

correction

0246

+0°C +2°C +4°C +6°C

Setting at shipment

SET DA TA 2

1) Based on the difference between TA and TS, the operation frequency is instructed to the outdoor unit.

2) Cooling operation Every 90 seconds, GA calculates TA-TS, the fluctuation,

and the correction amount of compressor frequency

TA (n) – TS (n) : Room temp. difference

TA (n-1) – TS (n) : Room temp.fluctuation

n – 1

: Detecting counts :

Detecting counts of 90 seconds before

3) Heating operation Every 1 minute (60 sec.), GA calculates TA-TS, the

fluctuation, and the correction amount of compressor frequency.

TS (n) – TA (n)

TA (n) – TA (n – 1): Room temp.fluctuation

n – 1

: Room temp. difference : Detecting counts

: Detecting counts of 1 minute before

4) Dry operation The frequency correction control is same as those of the

cooling operation. However the maximum frequency is limited to approxi-

mately “S6”.

Note) When LOW is set up, the maximum frequency is

limited to approximately “SB”.

Remarks

Shift of suction temperature in heating operation

Maximum frequency code: S0-SF (16 steps)

Automatic cooling/heating control

1) The judgment of selecting Cooling/Heating mode is

carried out as shown belows

When TA exceeds Tsh+1.5°C after 10 minutes at thermostat off, the operation mode

TSC: Setup temp. in

cooling operation

TSH: Setup temp. in

heating operation + temp. correction of room temp. control

+1.5

–1.5

Cooling

(Cooling ON)

(Cooling OFF)

Heating

TA ˚C

TSC or TSH

When TA is lower Tsc-1.5°C after 10 minutes at thermostat off, the operation mode

changes COOL to HEAT mode.

2) For the automatic capacity control after judgment of cooling/heating, see Item 4.

3) For temperature correction of room temp. control at automatic heating, see Item 3.

No.

- 29 -

Fan speed control

Item

Outline of specifications

1) Operation with (HH), (H), (L) or [AUTO] mode is carried

out by the command from the remote controller.

2) When the fan speed mode [AUTO] is selected, the fan

speed varies by the difference between TA and TS.

<COOL>

Remarks

HH > H+ > H > L+ > L > UL

A B C

F G

TA-TSC ˚C

+3.0 +2.5 +2.0 +1.5 +1.0 +0.5

–0.5

HH (HH)

H+ (HH) H (HH) L+ (H+) L (H) L (H) L (L+)

• Controlling work using thermostat of remote controller is

same as the case of using body thermostat.

• If the fan s

hanged

exchanged,

• When cooling operation s

selected along a down arrow in figure

• When "TA-TSC" is just on boundary

change

•

( ) indicated the fan speed at automatic cooling operation.

peed has changed automatically, it is not

for 3 minutes. However when the air volume is

the fan s

peed changes.

tarted,

the fan speed will be

the fan speed won't

<HEAT>

L (L+) L+ (H) H (H+)

H+ (HH)

HH (HH)

C B A

TSH-TA ˚C

[-0.5] –1.0

[ 0 ] 0

[+0.5] +1.0

[+0.1] +2.0 [+1.5] +3.0 [+2.0] +4.0

the value with [ ] indicates the temperature at using remote

ontroller thermostat.

c the value without [ ] indicates the

temperature

at using body

thermostat of indoor unit.

• If the fan speed has changed automatically, it is not

changed for 1 minute.

•

When heating operation starts, the fan speed will be

selected along an up arrow in figure.

• When 'TSH-TA' is just on boundary, the fan speed won't

change.

• ( ) indicates the fan speed at automatic heating operation.

• In TC ≥ 60°C, the fan speed increases by 1 step.

TC: Indoor heat

exchanger sensor temperature

No.

- 30 -

Fan speed control (Continued)

Item

Outline of specifications

CODE No.

DN : [ 5d ]

SW501 (1)-(2)

TAP HEAT COOL HEAT COOL HEAT COOL HEAT COOL HEAT COOL HEAT COOL HEAT COOL

F1 HH HH F2 HH HH H+ H+ F3 HH HH H+ H+ F4 HH HH HH H+ H+ F5 HH HH H+ H+ H H F6 HH H+ H+ H H L+ L+ F7 HH HH H+ H+ H H F8 H+ H+ H H H H L+ L+ L+ L+

F9 H H L+ L+ L+ L+ L L FA H H L+ L+ L L L L FB L+ L+ L L L L FC L L L L FD LL LL LL LL LL LL LL LL LL LL LL LL LL LL

50Pa 83Pa 117Pa 150Pa 183Pa 217Pa

0001 0002 0004 0000 0005 0003 0006

3) In heating operation, the fan speed changes to [UL] if thermostat is turned off.

4) If TA ≥ 25°C when heating operation has started or defrost operation has been cleared, the air conditioner operates with (H) mode or higher mode for 1 minute after Tc entered in E zone of cold air draft preventive control (No. 7).

Remarks

250Pa

ON-ONON-OFF - - OFF-OFF - OFF-ON

Cold air draft preventive control

1) In heating operation, the indoor fan is controlled based on the detected temperature of TC sensor or TCJ sensor. As shown below, the upper limit of the fan speed is restricted in

spite of the fan speed set on remote control.

However B zone is assumed as C zone for 6 minutes after the compressor has started.

In defrost operation, the control value of TC is shifted +6°C.

TC, TCJ

˚C

30 28 26

20 16

OFF

E zone D zone

C zone B zone

A zone

In A zone while thermostat is ON, [PRE-HEAT (Heating ready)] is displayed.

No.

- 31 -

Item

Outline of specifications

Remarks

Freeze preventive control (Low temperature release)

1) The cooling operation (including Dry operation) is performed as follows based on the detected temperature of TC sensor or TCJ sensor. When [J] zone is detected for 6 minutes (Following figure), the commanded frequency of compressor is decreased. After then the commanded frequency changes every 30 seconds while operation is performed in [J] zone.

In [K] zone, time c

ation is held.

oper When [ I ] z

and the operation retur If the c

ommanded frequency becomes S0 because the oper return temperature A is raised from 5°C to 12°C until [ I ] zone is detected and the indoor fan speed is operated with L tap.

ounting is interrupted and the

one is detected, the timer is cleared

ns to the nor

ation contin

mal oper

ues in [J] zone, the

ation.

TC,TCJ˚C

TCJ:

Indoor heat exchanger sensor temperature

In heating operation, the freeze-preventive control works if 4-way valve is not exchanged and the following conditions are satisfied. (However the temperature for J zone dashing control is changed from 2°C to –5°C.)

• When c or d is established 5 minutes af ter activation.

TCn ≤ TC (n – 1) – 5

TCn < TC (n – 1) – 1 and TCn ≤ TA

< 5°C

TCn:

TC temperature when 5 minutes elapsed after activation

TC (n – 1):

TC temperature at start time

No.

- 32 -

High-temp. release control

Item

Outline of specifications

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. 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.

Remarks

However this control is ignored in case of the follower unit of the twin.

Drain pump control

Setup at shipment

Control temp. °C

56 (54) 52 (52)

TC, TCJ

˚C

M N

NOTE:

When the operation has started or when TC or TCJ < 30°C after operation start, the release temperature is controlled between values in parentheses of A and B.

1) In cooling operation (including Dry operation), the drain pump is usually operated.

2) If the float switch works while drain pump drives, the compressor stops, the drain pump continues the operation, and a check code is output.

3) If the float switch works while drain pump stops, the compressor stops and the drain pump operates. If the float switch keeps operating for approx. 4 minutes, a check code is output.

Same status as that when “thermostat-OFF” (status that the air conditioner enters in the room temp. monitor mode when the temperature reached the setup temperature on the remote controller)

Check code [P10]

Drain pump kit

TCB-DP40DE (Sold separately)

After-heat elimination

When heating operation stops, in some cases, the indoor fan operates with (L) for approx. 30 seconds.

No.

- 33 -

Frequency fixed operation (Test run)

Item

Outline of specifications

1) When pus displayed on the display screen and the mode enters in T run mode.

2) Push [ON/OFF] button.

3) Using [MODE] button, set the mode to [COOL] or [HEAT].

Do not use other mode than [COOL]/[HEAT] mode.

•

• During test run operation, the temperature cannot be ad-

justed.

• Trouble is detected as usual.

• A frequency fixed operation is performed.

4) After the test run, push [ON/OFF] button to stop the operation. (Display in the display part is same as the procedure in Item 1.)

5) Push [CHK] button to clear the test run mode. ([TEST] display in the display part disappears and the status returns to the normal stop status.)

1) When TEMPORARY button is pushed for 10 seconds or more, “Pi!” sound is heard and the operation changes to test run. After approx. 3 minutes, a cooling operation starts forcedly.

Check cool air starts blowing. If the operation does not start, check wiring again.

2) To stop a test operation, push TEMPORARY button once again (Approx. 1 second).

Check wiring / piping of the indoor and outdoor units in test run.

hing [CHK] button for 4 seconds or more, [TEST] is

est

Remarks Command frequency is

approximately [S7]

TEMPORARY button

13 1) The operation time of the indoor fan is calculated, the filter

(Except wireless type)

reset signal is sent to the remote controller when the specified time (2500H) has passed, and it is displayed on LCD.

2) When the filter reset signal has been received from the remote controller, time of the calculation timer is cleared.

In this case, the measurement time is reset if the specified time has passed, and display on LCD disappears.

[FILTER ] goes on.Filter sign display

No.

- 34 -

Central control mode selection

Item

Outline of specifications

1) Setting at the central controller side enables to select the contents which can be operated on the wired remote controller.

2) Setup contents

• In case of TCC-LINK Central remote controller

(TCB-SC642TLE2) [Individual]: Operated by wired remote controller ([After-push precedence]) [Central 1]: START / STOP operation by wired remote controller is unavailable. [Central 2]: START / STOP, MODE change and TEMP. setting by wired remote controller are unavailable. [Central 3]: MODE change and TEMP. setting by wired remote controller are unavailable. [Central 4]: MODE change by wired remote controller is unavailable.

• In case of the wireless remote controller, the con-

tents to be operated are same though the display lamp does not change. If an item prohibited by the central control mode is operated from the remote controller, it is notified with receiving sound Pi, Pi, Pi, Pi (5 times)

Remarks

Display at wired remote controller side (No display)

] goes on.

[

] goes on.

[

] goes on.

[

] goes on.

[

Saving operation

Max. frequency cut control

1) Selecting [AUTO] mode enables an saving mode to be operated.

2) The setup temperature is shifted (corrected) in the range not to lose the comfort ability according to input values of various sensors.

3) Data (Input value room temp. Ta, Outside temp. To, Air volume, Indoor heat exchanger sensor temp. Tc) for 20 minutes are taken the average to calculate correction value of the setup temperature.

4) The setup temperature is shifted every 20 minutes, and the shifted range is as follows.

In cooling time: +1.5 to – 1.0K In heating time: –1.5 to +1.0K.

1) This control is operated by selecting [AUTO] operation mode.

2) COOL operation mode: It is controlled according to the following figure if To < 28°C.

Ta ˚C

Normal control

+4 +3

3) HEAT operation mode: It is controlled according to the following figure if To > 15°C.

Max. frequency is

Ta ˚C

Tsh

–3

restricted to approximately the rated heating frequency

Tsc

Max. frequency is restricted to approximately the rated cooling frequency

–4

Normal control

No.

- 35 -

DC motor

Energy saving

operation

Item

Outline of specifications

Remarks

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 a fan lock is found, the air conditioner stops, and

trouble is displayed.

• If static pressure of the used duct does not match with

the setup value of static pressure, which was decided

Check code [P12]

in the static pressure setting code No. [5D], the air conditioner may stop or a check code may be displayed.

1) Tur n on

2) During operation of save operation, wired remote controller.

3) During save operation, the current release control is performed with the restriction ratio set in EEPROM on the outdoor unit.

4) The restriction ratio can be set by keeping 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

SAVE

button on the remote controller.

lights on the

SAVE

button

Carry out setting operation during stop of the unit; otherwise the unit stops operation.

For the setup operation, refer to “How to set contents of save operation” in Section

“9. SETUP AT LOCAL SITE AND OTHERS”.

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%).

8°C heating/Frost

protective operation

1) This function is intended for the cold latitudes and performs objective heating operation (8°C heating operation).

Using the indoor CODE No. [D1] (1 bit), Valid/Invalid of this function is set up at the customer’s side.

∗ The setup by CODE No. is Invalid [0]/Valid [1] and

Invalid [0] has been set at the shipment.

This function starts operation by pushing temperature

button during heating operation for 4 seconds or more after temperature reached the minimum set temperature.

4) 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)

Push :

MODE

Other operation mode is selected and the operation continues.

5) The indoor fan stops to protect the compressor for 2 minutes after start of heating operation (thermostat-ON) by this function.

In a group connection, if there is even one combination with other unit, “This function is not provided.” is display ed.

The setup temperature jumps from [18] to [8].

6-3. Indoor Print Circuit Design Board

- 36 -

<MCC-1643>

Indoor/Outdoor

inter-unit cable

CN67

Optional power supply

(CN309)

Ventilation output CN32

Power supply LED of remote controller

D403 (Red)

EEPROM

IC503

“1:1 model”

Connection

inter CN50

CN61

UART

(Fan - IPDU, Application Control Kit)

CN521 (Red) DC12V

DISP(CN72)

CHK(CN71)

Remote

controller

External static pressure select SW

SW501

CN41

Float SW

CN34

TC sensor

TCJ sensor

CN102

CN101

TA sensor

CN104

Signal for Drain Pump Kit

CN504 (WHI) DC12V

6-3-1. Optional connector specifications of Indoor Circuit Design Board

- 37 -

controller (DN [31] = 0000 → 0001)

Setting at shipment: Interlock of ON by indoor unit operation, with OFF by stop operation

∗ The single operation setting by FAN button on the remote controller is performed on the remote

DC12V

Output (Open collector)

Permission/Prohibition of remote controller operation stop is performed by input.

Operation ON (Answer back of HA)

Warning output ON

This check is used to check indoor operation. (Performs operation of indoor fan “H”

and Drain pump ON without communication with outdoor and remote controller)

Communication is available by indoor unit and remote controller only.

ON/OFF input

Remote controller prohibited input

Operation output (Open collector)

DC12V

Warning output (Open collector)

1 HA ON/OFF input (J01: YES/NO=Pulse (At shipment from factory) /Static input selection)

234

20V

CN71

CN72

Connected FAN-IPDU (MCC-1610)

Connected Application control kit (TCB-PCUC1E)

1 12V

25V

3 Transmission

4 Receive

50V

CN521

Function Connector No. Pin No. Speciﬁcations Remarks

Ventilation output CN32

HA CN61

CHK

Operation check

DISP

Exhibition mode

UART

(FAN-IPDU,

Option control

kit)

6-3-2. Fan IPDU P.C. Board (MCC-1610)

- 38 -

Power relay output

CN602

UART communication between

CDB

CN504

UART communication

between Application control kit

(TCB-PCUC1E)

CN505

CN504

CN505

CN702

CN705

CN704

CN703

CN602

Fan motor output U-phase

CN705

Fan motor output V-phase

CN704

Fan motor output W-phase

CN703

CN502

CN500

Power supply input

CN500

CN511

CN510

Reactor connecting terminal

CN510

CN511

6-3-3. Noise filter (MCC-1551)

- 39 -

CN04 (White) Power supply output (

Neutral)

L01

Line Filter

CN04 (White)

ower supply input

P (Neutral)

CN03 (Red) Power supply output (Live)

CN08 (Blue) Power supply output for drain pump kit *option

CN01 (Red) Power supply input (Live)

7. TROUBLESHOOTING

- 40 -

7-1. Summary of Troubleshooting

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 trouble detected on the indoor unit?

• Is not outside high-temperature operation controlled in heating operation?

2. Indoor fan does not rotate.

• Does not cool air discharge preventive control work in heating operation?

3. Outdoor fan does not rotate or air volume changes.

• Does not high-temperature release operation control work in heating operation?

• Does not outside low-temperature operation control work in cooling operation?

• Is not defrost operation performed?

4. ON/OFF operation cannot be performed from remote controller.

• Is not automatic address being set up? (When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.)

• Is not being carried out a test run by operation of the outdoor P.C. board?

b) Did you return the cabling to the initial positions? c) Are connecting cables of indoor unit and remote controller correct?

2. Troubleshooting procedure

When a trouble occurred, check the parts along with the following procedure.

Trouble Confirmation of check code display Check defective parts.

→ →

NOTE

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller to shield cables.

- 41 -

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 trouble detected on the indoor unit?

• Is not outside high-temperature operation controlled in heating operation?

2. Indoor fan does not rotate.

• Does not cool air discharge preventive control work in heating operation?

3. Outdoor fan does not rotate or air volume changes.

• Does not high-temperature release operation control work in heating operation?

• Does not outside low-temperature operation control work in cooling operation?

• Is not defrost operation performed?

4. ON/OFF operation cannot be performed from remote controller.

• Is not forced operation performed?

• Is not the control operation performed from outside/remote side?

• Is not automatic address being set up?

• Is not being carried out a test run by operation of the outdoor controller?

b) Did you return the cabling to the initial positions? c) Are connecting cables between indoor unit and receiving unit correct?

2. Troubleshooting procedure

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.) When a trouble occurred, check the parts along with the following procedure.

Trouble

Confirmation of lamp display

→→

(When wireless remote controller is connected)

Check defective position and parts.

Outline of judgment

- 42 -

The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with the following method.

Method to judge the erroneous position by display panel of the indoor unit (lamp display of the wireless receiving part)

The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.

: Go off, : Go on, : Flash (0.5 sec.)

Lamp indication

Operation

No indication at all

Operation

Flash

Operation

Timer Ready

Flash

Timer Ready

Alternate flash

Check code

—

E01 E02 E03 E08 E09 E10

E18

E04

P10

P12

Cause of trouble occurrence

Pow er supply OFF or mis wiring between lamp indication unit and indoor unit

Receiving trouble

Sending trouble

Communication stop

Duplicated indoor unit No. Duplicated master units of remote controller

⎫ ⎬

Receiving unit

⎭

⎫ ⎪

Miswiring or wire connection trouble

⎬

between receiving unit and indoor unit

⎪ ⎭

⎫

Setup trouble

⎬ ⎭

UART communication trouble

Wire connection trouble between indoor units, Indoor power OFF (Communication stop between indoor header and follower)

Miswiring between indoor unit and outdoor unit or connection trouble (Communication stop between indoor and outdoor units)

Overflow was detected.

Indoor DC fan trouble

⎫ ⎪ ⎬

Protective device of indoor unit worked.

⎪ ⎭

Outdoor unit discharge temp. trouble Outdoor high pressure system trouble Negative phase detection trouble Heat sink overheat trouble Gas leak detection trouble

⎫

Protective device of

⎬

outdoor unit worked.

⎭

⎫ ⎪ ⎬

Outdoor unit trouble

⎪ ⎭

4-way valve system trouble (Indoor or outdoor unit judged.) Outdoor unit high pressure protection

Outdoor unit: Outdoor unit trouble Outdoor unit: Inverter Idc operation Outdoor unit: Position detection trouble

⎫ ⎪

Protective device of

⎬

outdoor unit worked.

⎪ ⎭

Stopped because trouble of other indoor unit in a group (Check codes of E03/L03/L07/L08)

∗1

Operation

Timer Ready

Alternate flash

P03 P04 P05 P07 P15 P19 P20 P22 P26 P29

P31

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

Lamp indication

- 43 -

Operation

Alternate flash

Operation

Alternate flash

Operation

Timer Ready

Check code

F01 F02 F10 F04 F06 F07 F08 F12 F13 F15

Cause of trouble occurrence

Heat exchanger sensor (TCJ) trouble

Heat exchanger sensor (TC) trouble

Heat exchanger sensor (TA) trouble

Discharge temp. sensor (TD) trouble

Temp. sensor (TE) trouble Temp. sensor (TL) trouble Temp. sensor (TO) trouble Temp. sensor (TS) trouble Temp. sensor (TH) trouble

Temp. Sensor mis wiring (TE, TS)

⎫ ⎪

Indoor unit sensor trouble

⎬ ⎪ ⎭

⎫ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎬

Sensor trouble of outdoor unit ∗1

⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎭

Simultaneous flash

Operation

Timer Ready

Simultaneous flash

Operation

Timer Ready

Flash

Operation

Timer Ready

Simultaneous flash

Operation

Timer Ready

Simultaneous flash

F29

F31

H01 H02 H03 H04 H06 L03

L07

L08

L09

L10 L20 L29 L30 L31

Indoor EEPROM trouble

Outdoor EEPROM trouble

Compressor break down Compressor lock Current detection circuit trouble Case thermostat worked.

⎫ ⎪ ⎪ ⎬

Outdoor compressor system trouble ∗1

⎪ ⎪ ⎭

Outdoor unit low pressure system trouble

Duplicated header indoor units There is indoor unit of group connection → AUTO address

in individual indoor unit. Unsetting of group address

Missed setting (Unset indoor capacity)

Unset model type (Service board) Duplicated indoor central addresses Outdoor unit and other trouble Outside interlock trouble Negative phase trouble

⎫ ⎪ ⎪ ⎬ ⎪

∗ If group construction and

⎪

address are not normal

⎭

when power supply turned on, automatically goes to address setup mode.

⎫ ⎪ ⎪ ⎪ ⎪

Others

⎬ ⎪ ⎪ ⎪ ⎪ ⎭

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

Others (Other than Check Code)

- 44 -

Lamp indication

Operation Timer Ready

Simultaneous flash

Operation Timer Ready

Alternate flash

Check code

—

Cause of trouble occurrence

During test run

Disagreement cool/heat (Automatic cool/heat setting to automatic cool/heat prohibited mode)

continuation

- 45 -

{×{×{×{×{×{×{×{

reset

Automatic Operation

Air conditioner operation

××

{

××

{×{

continuation

——

reset

Automatic Operation

Air conditioner operation

continuation

——

reset

Automatic Operation

Air conditioner operation

——

Explanation of trouble contents

No communication from remote controller and network adapter

(Also no communication from central control system)

There is trouble on serial communication between indoor and outdoor units

Representative defective position

Same address as yours was detected.

Communication trouble between CDB(MCC-1643) and FAN-IPDU(MCC-1610)

Regular communication between indoor master and follower units is impossible.

Open/short was detected on heat exchanger (TCJ).

Open/short was detected on heat exchanger (TC).



Open/short was detected on room temp. sensor (TA).

EEPROM trouble (Other trouble may be detected. If no trouble, automatic address is repeated.

There are multiple master units in a group.

When even one group connection indoor unit exists in individual indoor unit.

Indoor group address is unset.

Capacity of indoor unit is unset.

Duplicated setting of central control system address



Abnormal stop by outside trouble (CN80) input

Trouble of indoor AC fan was detected. (Fan motor thermal relay worked.)

Float switch worked.

Indoor DC fan trouble (Over-current/Lock, etc.) was detected. Static pressure trouble set

In heating operation, trouble was detected by temp. down of indoor heat exchanger sensor.

Follower unit in group cannot operate by warning from [E03/L03/L07/L08] of master unit.

When this warning was detected before group construction/address check finish at power supply was turned on, the mode shifts automatically to AUTO address setup mode.



Explanation of trouble contents

Signal cannot be received from indoor unit. Master remote controller was not set. (including 2 remote controllers)

Signal cannot be sent to indoor unit.

In 2-remote controller control, both were set as master.

(Indoor master unit stops warning and follower unit continues operation.)

Representative defective position

Explanation of trouble contents

Signal sending operation of central control system is impo ssible. There a re multipl e same cen tral devic es.

Signal receiving operation of central control system is impossible.

Representative defective position

Trouble on device connected to general-purpose device control interface of exclusive to TCC-LINK

Group follower unit is defective. (For remote controller, above-mentioned [∗∗∗] details are displayed with unit No.)

Regular communication trouble between indoor and remote controller

Indoor/Outdoor serial trouble

Duplicated indoor addresses

E03

E04

E08

Remote controller

TCC-LINK central &

7-2. Check Code List

Check code indication

(Indoor)(Indoor unit detected)

UART communication trouble

Regular communication trouble between indoor master and follower units

Indoor unit, Heat exchanger (TCJ) trouble

Indoor unit, Heat exchanger (TC) trouble

Indoor unit, Room temp. sensor (TA) trouble

Indoor unit, other indoor P.C. board trouble

Duplicated setting of indoor group master unit

There is group cable in individual indoor unit.

Unset indoor group address

Unset indoor capacity

L03

L07

L08

E10

E18

F01

F02

F10

F29

L09

Duplicated central control system address

Outside trouble input to indoor unit (Interlock)

Indoor unit, AC fan trouble

Indoor unit, overflow detection

Indoor unit, DC fan trouble

4-way valve system trouble

Other indoor unit trouble

L20

L30

P01

P10

P12

P19

P31

No master remote controller, Remote controller communication (Receive) trouble

Remote controller communication (Send) trouble

E01

E02

Remote controller

Check code indication

(Remote controller detected)

Central control system communication (send) trouble

Duplicated master remote controller

E09

Check code indication

(Central control devices detected)

Central control system communication (receive) trouble

C05

C06

TCC-LINK central

General-purpose device control interface batched warning

C12

Group follower unit is defective.

P30

When remote controller or central controller detects trouble, it is not necessarily related to operation of the air conditioner. In this list, the check codes that outdoor unit detects are not described.

NOTE: Even for the same contents of trouble such as communication trouble, the display of check code may differ according to detection device.

Check Code List

- 46 -

Trouble detected by indoor unit

Operation of diagnostic function

Check

code

No communication from remote

E03

controller (including wireless) and communication adapter

The serial signal is not output from outdoor unit to indoor unit.

• Miswiring of inter-unit wire

E04

• Defective serial sending circuit on

• Defective serial receiving circuit on

E08

Duplicated indoor unit address

L03

Duplicated indoor header unit There is group wire in individual indoor

L07

unit.

L08

Unset indoor group address

L09

Unset indoor capacity

L30

Abnormal input of outside interlock

Float switch operation

P10

• Float circuit, Disconnection, Coming-

Cause of operation

outdoor P.C. board

indoor P.C. board

off, Float switch contact trouble

Status of

air conditioner

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

Condition

Displayed when check code is detected

Displayed when

heck

ode is

detected Displayed when

check code is detected

Displayed when check code is detected

Judgment and measures

1. Check cables of remote controller and communication adapters.

• Remote controller LCD display OFF (Disconnection)

• Central remote controller [97] check code

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.

2. When outdoor unit normally operates Check P.C. board (Indoor receiving / Outdoor sending).

1. Check whether remote controller connection (Group/Individual) was changed or not after power supply turned on (Finish of group construction/Address check).

* 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. Set indoor capacity (DN=11)

1. Check outside devices.

2. Check indoor P.C. board.

1. Trouble of drain pump

2. Clogging of drain pump

3. Check float switch.

4. Check indoor P.C. board.

P12

Indoor DC fan trouble

4-way valve system trouble

P19

• After heating operation has started, indoor heat exchangers temp. is down.

Own unit stops while warning is output

P31

to other indoor units.

Coming-off, disconnection or short of

F01

indoor heat exchanger temp. sensor (TCJ)

Coming-off, disconnection or short of

F02

indoor heat exchanger temp. sensor (TC)

Coming-off, disconnection or short of

F10

indoor heat exchanger temp. sensor (TA)

Indoor EEPROM trouble

F29

• EEPROM access trouble

E10

UART communication trouble

Stop

(Automatic reset)

Stop

(Follower unit)

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Displayed when check code is detected

Displayed when

check code is detected

Displayed when check code is detected

Displayed when

check code is detected

Displayed when check code is detected

1. Position detection trouble

2. Indoor fan driving part over-current protective circuit operation

3. Indoor fan lock

4. Indoor P.C. board check

1. Check 4-way valv e.

2. Check 2-way valv e and check valve.

3. Check indoor heat exchanger (TC/TCJ).

4. Check indoor P.C. board.

1. Judge follower unit while master unit is [E03], [L03], [L07] or [L08].

2. Check indoor P.C. board.

1. Check indoor heat exchanger temp. sensor (TCJ).

2. Check indoor P.C. board.

1. Check indoor heat exchanger temp. sensor (TC).

2. Check indoor P.C. board.

1. Check indoor heat exchanger temp. sensor (TA).

2. Check indoor P.C. board.

1. Check indoor EEPROM. (including socket insertion)

2. Check indoor P.C. board.

Check for defect in indoor P.C. board

(MCC-1643 and MCC-1610)

5. Static pressure trouble set

Regular communication trouble between indoor header and follower

E18

units

Stop

(Automatic reset)

Displayed when check code is detected

1. Check remote controller wiring.

2. Check indoor power supply wiring.

3. Check indoor P.C. board.

Trouble detected by outdoor unit

- 47 -

Operation of diagnostic function

Check

code

Indoor

unit

F04

F06

F07

F12

F15

F08

F13

F31

L10

L29

P07

P15

P19

H01

H02

Cause of operation

Disconnection, short of discharge temp. sensor (TD)

Disconnection, short of outdoor temp. sensor (TE)

Disconnection, short of outdoor temp. sensor (TL)

Disconnection, short of suction temp. sensor (TS)

Miss-mounting of outdoor temp. sensor (TE, TS)

Disconnection, short of outside temp. sensor (TO)

Disconnection, short of heat sink temp. sensor (TH)

Outdoor P.C. EEPROM trouble

Unset jumper of service P.C. board

Communication trouble between outdoor P.C. board MCU

Heat sink ∗ Heat sink temp. sensor detected over specified

temperature.

Detection of gas leak ∗ Discharge temp. sensor (TD), Suction temp.

sensor (TS) detected temperature over specified temp.

4-way valve inverse trouble ∗ After heating operation has started, indoor

heat exchanger temp. lowers under the specified temp.

∗ After heating operation has started, outdoor

heat exchanger / suction temp. rises over the specified temp.

Compressor break down ∗ Although operation has started, operation

frequency decreases and operation stops.

Compressor lock ∗ Over-current detection after compressor

start-up

erheat trouble

Status of

air conditioner

Continue

Stop

Condition

Displayed when check code is detected

Displayed when

check code is detected

Displayed when check code is detected

Judgment and measures

1. Check discharge temp. sensor (TD).

2. Check outdoor P.C. board.

1. Check temp. sensor (TE).

2. Check outdoor P.C. board.

1. Check temp. sensor (TL).

2. Check outdoor P.C. board.

1. Check suction temp. sensor (TS).

2. Check outdoor P.C. board.

1. Check temp. sensor (TE, TS).

2. Check outdoor P.C. board.

1. Check outside temp. sensor (TO).

2. Check outdoor P.C. board.

1. Check outdoor P.C. board. (Q201 is incorporated in TH sensor.)

1. Check outdoor P.C. board.

1. Outdoor service P.C. board Check model type setting jumper wire.

1. Check outdoor P.C. board

2. Connection check for each P.C. board.

1. Check screw tightening between PC. Board and heat sink and check radiator grease.

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.

5. Check discharge temp. sensor (TD), suction temp. sensor (TS).

1. Check operation of 4-way valve.

2. Check outdoor heat exchanger (TE), suction temp. sensor (TS).

3. Check indoor heat exchanger sensor (TC).

4. Check 4-way valv e coil.

5. Check PMV (Pulse Motor Valve).

1. Check power supply voltage.

2. Overload operation of refrigerating cycle

1. Trouble of c c

ompressor.

2. Wiring

trouble

ompressor (Lock

of compressor (Open phas

, etc.): Replace

Check

- 48 -

code

Indoor

unit

H03

P05

F23

H06

P03

H04

P04

P05

P20

P22

P26

P29

Operation of diagnostic function

Cause of operation

Current detection circuit trouble

Open phase of 3-phase power supply

Ps sensor trouble

Low pressure protective operation

Discharge temp. trouble ∗ Discharge temp. (TD) over specified v alue

was detected.(1.6)

Case thermostat operation ∗ Abnormal overheat of compressor

High pressure SW system trouble

Power supply voltage trouble

High pressure protective operation

• During cooling operation, outdoor temp . sensor (TL) detected temperature over specified temp.

• During heating operation, indoor temp. sensor (TC, TCJ) detected temperature over specified temp.

Outdoor fan system trouble

Short-circuit trouble of compressor driving element

Position detection circuit trouble

Status of

air conditioner

Stop

Condition

Displayed when check code is detected

Displayed when

heck

ode is

detected

Displayed when check code is detected

Displayed when

heck

ode is

detected

Judgment and measures

1. Check outdoor P.C. board. (AC current detection circuit)

1. Check open phase of 3-phase power supply.

2. Black lead wire to be connected to CN03 of outdoor P. C. board does not pass through T611.

1. Check connection of Ps sensor connector.

2. Check failure of Ps sensor.

3. Check compressing power trouble of compressor.

4. Check 4-way valve trouble.

5. Check outdoor P.C. board

1. Check service valves are fully opened.

(Gas side, Liquid side)

2. Check clogging of outdoor PMV. (PMV1, 2)

3. Check SV2 circuit.

4. Check Ps sensor trouble.

5. Check clogging of indoor filter.

6. Check clogging of refrigerant pipe.

7. Check of outdoor fan operation. (In heating mode)

8. Check short of refrigerant.

1. Check refrigerating cycle (Gas leak)

2. T rouble of electronic expansion valve

3. Check discharge temp. sensor (TD).

1. Check case thermostat and connector.

2. Check gas leak, recharge

3. Check full open of service valve.

4. Check PMV (Pulse Motor Valve).

5. Check broken pipe.

1. Check service valves are fully opened. (Gas side, Liquid side)

2. Check of outdoor fan operation.

3. Check motor trouble of outdoor fan.

4. Check clogging of outdoor PMV. (PMV1, 2)

5. Check clogging of heat exchanger in indoor/outdoor units.

6. Short-circuit status of suction/discharge air in outdoor unit.

7. Check outdoor P.C. board trouble.

8. Check fan system trouble (Cause of air volume drop) at

indoor side.

9. Check PMV opening status in indoor unit.

1. Check power supply voltage.

1. Check outdoor heat exchanger sensor (TL).

2. Check indoor heat exchanger sensor (TC, TCJ).

3. Check full open of service valve.

4. Check indoor/outdoor fan.

5. Check PMV (Pulse Motor Valve).

6. Check clogging and short circuit of indoor/outdoor heat exchanger.

7. Overcharge of refrigerant. Recharge

1. Check lock of fan motor.

2. Check power supply voltage between L2 and N.

3. Check outdoor P.C. board.

1. When performing operation while taking-off compressor wire, P26 trouble occurs. Check control P.C. board.

2. When performing operation while taking-off compressor wire, trouble does not occur. (Compressor rare short)

1. Check control P.C. board.

trouble.

Trouble detected by remote controller or central controller (TCC-LINK)

- 49 -

Operation of diagnostic function

Check code

Not displayed at all (Operation on remote controller is impossible.)

Cause of operation

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.

Status of

air conditioner

Stop

Condition

—

Power supply trouble of remote controller, Indoor EEPROM trouble

1. Check remote controller inter-unit wiring.

2. Check remote controller.

3. Check indoor power wiring.

4. Check indoor P.C. board.

5. Check indoor EEPROM. (including socket insertion)

→ Automatic address repeating phenom-

Judgment and measures

enon generates.

E01

∗2

E02

E09

L20

Central controller

L20

— ∗3

Central controller

(Send)

C05

(Receive)

C06

—

Central controller

P30

No communication with master indoor unit

• Disconnection of inter-unit wire between remote controller and master indoor unit (Detected by remote controller side)

Signal send trouble to indoor unit (Detected by remote controller side)

There are multiple main remote controllers. (Detected by remote controller side)

Duplicated indoor central addresses on communication of central control system (Detected by indoor/central controller side)

Communication circuit trouble of central control system (Detected by central controller side)

Indoor Gr sub unit trouble (Detected by central controller side)

Stop

(Automatic reset)

∗ If center exists,

operation continues.

Stop

(Automatic reset)

∗ If center exists,

operation continues.

Stop

(Sub unit

continues operation.)

Stop

(Automatic reset)

Continues

(By remote controller)

Continuation/Stop

(According

to each case)

Displayed when check code is detected

Receiving trouble from remote controller

1. Check remote controller inter-unit wiring.

2. Check remote controller.

3. Check indoor power wiring.

4. Check indoor P.C. board.

Sending trouble of remote controller

1. Check sending circuit inside of remote controller.

→ Replace remote controller.

1. In 2-remote controllers (including wireless), there are multiple main units.

Check that there are 1 main remote controller and other sub remote controllers.

1. Check setting of central control system network address. (Network adapter SW01)

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.

4. Check central controller (such as central control remote controller, etc.)

5. Check terminal resistance. (TCC-LINK)

Check the check code of the corresponding unit from remote controller.

∗2 The check code cannot be displayed by the wired remote controller.

(Usual operation of air conditioner becomes unavailable.) For the wireless models, trouble 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.

7-3. Diagnostic Procedure for Each Check Code (Indoor Unit)

- 50 -

Check code [E01]

Is inter-unit cable of A and B normal?

YES

Is there no disconnection or

contact trouble of connector on harness

from terminal block of indoor unit?

Is group control operation?

YES

Is power of all indoor units turned on?

YES

Is power supplied to remote controller?

AB terminal: Approx. DC18V

YES

Correct inter-unit cable

of remote controller

Correct connection of connector.

Check circuit wiring.

Check power connection of indoor unit.

(Turn on power again.)

Check indoor P.C. board (MCC-1643).

Defect → Replace

[E09]

Are 2 remote controllers set

without header unit?

Are 2 header units set in

2 remote controllers?

YES

Correct a header unit/a follower unit.

(Remote controller address connector)

Check remote controller P.C. board.

Defect → Replace

Correct as a header unit

and a follower unit.

Check remote controller P.C. board.

Defect → Replace

[E04]

- 51 -

Does outdoor operate?

YES

Is group address setup of remote controller correct?

YES

Are wiring in indoor unit and

1, 2, 3 inter-unit cables correct?

YES

Are wirings of terminal blocks

(1, 2, 3) wired to CN67 normal?

YES

Does the voltage

between 2 and 3 of the indoor unit

inter-unit terminal blocks

(1, 2, 3) vary?

∗ As shown in the following figure,

carry out measurement within 20 seconds after the power was turned on.

Black White

Terminal block

Check CODE No. [14].

Correct wiring and

inter-unit cables.

Correct wiring of connector

and terminal blocks.

Check indoor P.C. board

(MCC-1643).

Defect → Replace

S5277G

3 2 1

Check indoor P.C. board.

Defect → Replace

Check outdoor P.C. board.

Defect → Replace

[E10]

- 52 -

Is the

connection for the

UART communication

connector (MMC-1643

CN521, MCC-1610

CN505) abnormal?

Yes

Repair of connector

connection.

Is connector

lead wire for the UART

communication

cut?

Red LED (D640)

of MCC-1610 not

illuminated.

Fault with the MCC-1643

→ Replace

Yes

Replacement of the

connector’s lead wire.

Check the power

supply of MCC-1610

[E11]

- 53 -

Is the

connection for the UART communication connector (MCC-1643

CN521, MCC-1610

CN505) normal?

Yes

Repair of connector

connection.

Is connector

lead wire for the UART

communication

cut?

Red LED (LD1)

of Optional board

not illuminated.

Red LED (LD1)

light on the Optional

board flashes

on and off.

Red LED (LD1)

of Optional

blinks.board

Yes

Yes Fault with the external

Yes

Replacement of the

connector’s lead wire.

Lead wire is cut or fault

of input/output board.

input/output board

→ Replace

Fault with the internal

board (MCC-1643)

→ Replace

Check the operating status.

[E18]

- 54 -

Is inter-unit cable

of A and B normal?

YES

Is there no disconnection

or contact trouble of connector

on harness from terminal block

of indoor unit?

Is group control operation?

YES

Is power of all indoor units turned on?

YES

Is there no contact trouble

of indoor/outdoor inter-unit wire

YES

Correct inter-unit cable

of remote controller

Correct connection of connector.

Check circuit wiring.

Check power

connection status of indoor unit

(Connect again).

Correct indoor/outdoor inter-unit wire

(Serial signal line).

Check indoor P.C. board

(MCC-1643).

Defect → Replace

[E08, L03, L07, L08]

E08: Duplicated indoor unit No. L03: There are 2 or more header units in a group control. L07: There is 1 or more group address [Individual] in a group control. L08: The indoor group address is unset. (99)

If the above trouble 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 trouble is detected during the automatic address set mode, a check code may be output.

[L09]

Is not yet capacity setting

of indoor unit set up?

YES

Set capacity data of indoor unit.

(Setup CODE No. (DN)=11)

Check indoor P.C. board (MCC-1643).

Defect → Replace

[L20]

- 55 -

Are wiring connections

to communication lines

U3 and U4 normal?

YES

Is not the multiple same central

control system addresses connected?

Check central controller

(including 1:1 model connection interface)

and indoor P.C. board (MCC-1643).

Defect → Replace

[L30]

Do outside devices normally work?

Outside devices connected with Application control kit input terminal TB2 : IN1

YES

Correct wiring connection.

Correct central control system address.

Check outside devices.

Defect → Replace

YES

Check cause of operation.

[P30] (Central controller)

Is group operation carried out?

YES

Is there check code on remote controller in the follower remote controller?

YES

Check corresponding

indoor unit/outdoor unit.

Check indoor P.C. board (MCC-1643).

Defect → Replace

[P10] Drain pump kitnTCB-DP40DE (Sold separately)

- 56 -

Is connection of

float switch connector

(Indoor control board CN34)

normal?

YES

Does float switch work?

YES

Does drain pump work?

YES

Check the drain pipe, etc.

Is power of

drain pump turned on? ∗

YES

Check and correct wiring

Is circuit wiring normal?

and wire circuit.

NO NO

Is voltage 7-8 pin on

Replace drain pump.

YES

RY02 12V?

YES

Correct connection

of connector.

Replace drain pump.

Check wiring.

Check indoor P.C. board

(MCC-1643).

Defect → Replace

∗ Check that voltage of 1 - 3 pin of CN08 on the MCC-1551 is 200-240V and check that voltage of 3-5 pin

on RY02 is 0 v.

[F10]

Is connection of TA sensor connector

(indoor P.C. board CN104) normal?

YES

Are characteristics of TA sensor resistance value normal? Replace TA sensor.

YES

∗ Refer to Characteristics-1.

Connect connector

of connector.

Check indoor P.C. board (MCC-1643).

Defective → Replace

[P12]

- 57 -

[P12]

Check code nameCheck code

Indoor fan motor trouble

Power supply ON

Cause

1. Installation environment trouble

2. Electric parts trouble

3. Wiring trouble of fan motor connector

4. Fan motor trouble

5.. Indoor P.C. board trouble

Measure the power supply voltage

and if the voltage is normal or not.

220-240VAC(50Hz) or

220VAC(60Hz)

YES

If the power relay operates

normally or not.

(the voltage between power relay

4pin-GND and 6pin-GND are

198-264V? *1)

YES

Power supply OFF

The ambient temperature is

normal or not.

YES

Power supply voltage is less than 198V

Power supply voltage is more than 264V

NO YES

*1 : Power relay pin No,

more than 80℃

The voltage between

the terminals of CN602

of MCC-1610 is 12V

Replacement of the power relay

Replacement of the MCC-1610

Adjustment of the main power supply on the equipment side

Improves the installation

environment

If there is any poor connection of

the connector of MCC-1610, or

disconnection of the motor lead.

Remove the motor lead from

CN703,704,705 of MCC-1610

If the fan motor is locked or not.

(Unable to rotate it by hand)

If the winding resistance of the

motor is correct or not. *2

YES

Replacement of the MCC-1610

YES

Correction of the connection

of the connector

Replacement of the motor

*1 : Measure the resistance value of each winding by using the tester

SWF-340W1000-1

Red

White

Black

Position Resistance value

Red - White 2.6 ± 0.3 Ω

White - Black 2. 6 ± 0.3 Ω

Black - Red 2.6 ± 0.3 Ω

at 20°C

Fan motor inside wiring diagram

[P19]

- 58 -

Is operation of 4-way valve normal?

(Check the pipe temp., etc.

during cooling/heating operation.

YES

Check temperature sensors.

TE sensor TS sensor

Indoor TC sensor

Defective → Correct, replace

Are 1.3 to 1.6kΩ applied to

resistance value of 4-way valve coil ?

YES

Check outdoor P.C. board operation.

(See the following description.)

Check 4-way valve.

Defective → Replace

Replace 4-way valve coil.

Defective

Check outdoor P.C. board.

Defective → Replace

Operation check direction of the outdoor P.C. board (In case of self-preservation valve)

1) Set the Dip switch SW804 as same as the following table and push SW801 for approx. 1 second. It enables you to check the exchange operation to cooling cycle or heating cycle.

• Only for approx. 10 seconds, the power is turned on.

• As the heat value of part (coil: resistance R700) is large, when checking the operation continuously, wait 1

minute or more until the next check. (There is no problem if a coil is not connected.)

2) After check, turn off all the Dip switches SW804.

Exchange to cooling cycle Exchange to heating cycle

SW804 SW8011CN701

4321

Push

DC180V or more

SW804 SW801 CN701

4321

Push

DC180V or more

Check by tester

Analog tester: Good article if over DC180V Digital tester: Although in some cases, the value varied and indicated. If the maximum value is DC180V or

more, it is good article.

[F02]

- 59 -

[F01]

Is connection of TC sensor connector

(CN101 on Indoor P.C. board) correct?

YES

Are characteristics of

TC sensor resistance value normal?

YES

∗ Refer to Charqacteristics-2.

Check indoor P.C. board (MCC-1643).

Defect → Replace

Is connection of TCJ sensor connector (CN102 on Indoor P.C. board) correct?

Correct connection of connector.

Replace TC sensor.

Correct connection of connector.

YES

Are characteristics of

TCJ sensor resistance value normal?

YES

∗ Refer to Charqacteristics-2.

Check indoor P.C. board (MCC-1643).

Defect → Replace

Replace TCJ sensor.

[C06] (1:1 model connection interface)

- 60 -

Are U3 and U4 communication lines normal? Correct communication line.

YES

∗1

Is connection of connector normal?

YES

Are A and B communication lines normal?

YES

Is there no connection trouble of power supply cable?

Is not the source power supply turned on?

∗1

In case of 1:1 model connection interface 1:1 model connection interface (MCC-1440) CN51 and indoor P.C. board CN050.

YES

Correct connection of connector.

Check connection of A and B terminal blocks.

Correct communication line of remote controller.

Correct power wiring.

Turn on the source power supply.

YES

Did a power failure occur?

Is the network address changed

from the wired remote controller?

Is there no noise source?

Can the other indoor units

be normally controlled from the central controller?

Or is the operation status of indoor unit reflected?

YES

Can the indoor unit be normally controlled

from the wired remote controller?

YES

Uncontrolled

(Same to others)

Uncontrolled

Clear the check code.

Eliminate noise, etc.

Check central controller.

Defect → Replace

Check indoor P.C. board (MCC-1643).

Defect → Replace

YES

Check the power supply transformer of

1:1 model connection interface (MCC-1440).

Defective → Replace

[E03] (Master indoor unit)

- 61 -

[E03] is detected when the indoor unit cannot receive a signal from the wired remote controller (also central controller). Check A and B remote controllers and communication lines of the central control system U3 and U4. As communication is impossible, this check code [E03] is not displayed on the wired remote controller and the central controller. [E01] is displayed on the wired remote controller and [C06] is displayed on the central controller. If these check codes generate during operation, the air conditioner stops.

[F29]

This check code indicates a detection trouble of IC503 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] is displayed on the central controller.

(Power ON)

(Approx.

3 minutes)

[SET] is displayed on

wired remote controller.

(Approx.

1 minute)

[SETTING]

goes off.

(Repetition)

LED (D501) on indoor unit

P.C. board flashes with

1Hz for approx. 10 seconds.

Reboot (Reset)

[P31] (Follower indoor unit)

When the master unit of a group operation detected [E03], [L03], [L07] or [L08] check code, the follower unit of the group operation detects [P31] and then the unit stops.

There is no display of the check code or alarm history of the wired remote controller. (In this model, the mode enters in automatic address set mode when the header unit detected [L03], [L07] or [L08] check code.)

Temperature – Resistance value characteristic table

- 62 -

TA, TC, TCJ sensor

Representative value

Temperature

(°C)

0 10 20 25 30 40 50 60 70 80 90 100

Resistance value (k

(Minimum (Standard (Maximum

value) value) value)

32.33 33.80 35.30

19.63 20.35 21.09

12.23 12.59 12.95

9.75 10.00 10.25

7.764 7.990 8.218

5.013 5.192 5.375

3.312 3.451 3.594

2.236 2.343 2.454

1.540 1.623 1.709

1.082 1.146 1.213

0.7740 0.8237 0.8761

0.5634 0.6023 0.6434

ΩΩ

Ω)

ΩΩ

TA, TC, TCJ sensor

Resistance (kΩ)

10 20 30 40 50 60 70 80 90 100

Temperature (˚C)

8. REPLACEMENT OF SERVICE P.C. BOARD

- 63 -

8-1. Indoor control P.C. Board

CAUTION

< Model : RAV-RM****DTP*> For the above

models, set the CODE no. to " " and the setting data 0000 (initial) to "0001"

<Note: when replacing the P.C. board for indoor unit servicing>

The nonvolatile memory (hereafter called EEPROM, IC503) on the indoor unit P.C. board before replacement includes the model specific type information and capacity codes as the factory-set value and the important setting data which have been automatically or manually set when the indoor unit is installed, such as system/ indoor/group addresses, external static pressure select setting, etc.

When replacing the P.C. board for indoor unit servicing, follow the procedures below. After replacement completes, confirm whether the settings are correct by checking the indoor unit No., Group

header unit/follower unit settings and perform the cooling cycle confirmation through the trial operation.

CASE 1

Before replacement, the indoor unit can be turned on and the setting data can be read out by wired remote control operation.

EEPROM data read out [1]

Replacement of P.C. board for Indoor unit servicing and power on [2]

Writing the read out EEPROM data [3]

Power reset

(for all indoor units connected to the remote control when the group operation control is perfor med.)

CASE 2

The EEPROM before replacement is defective and the setting data cannot be read out.

EEPROM data read out [2]

Writing the setting data to EEPROM, such as high ceiling installation setting and

optional connection setting, etc., based on the customer information. [3]

Power reset

(for all indoor units connected to the remote control when the group operation control is performed.)

[1] Setting data read out from EEPROM

- 64 -

The setting data modified on the site, other than factory-set value, stored in the EEPR OM shall be read out.

Step 1 Push

SET,CL

∗ When the group operation control is performed, the unit No . displayed f or the first time is the header unit No.

At this time, the CODE No. (DN) shows “ ”. Also, the fan of the indoor unit selected starts its operation.

Step 2 Every time when the

is displayed in order. Specify the indoor unit No. to be replaced.

1. Change the CODE No. (DN) to setting. (this is the setting for the filter sign lighting time.)

At this time, be sure to write down the setting data displayed.

2. Change the CODE No. (DN) by pushing Similarly, be sure to write down the setting data displayed.

3. Repeat the step 2-2 to set the other settings in the same way and write down the setting data as shown in the table 1 (example).

∗ The CODE No. (DN) are ranged from “ ” to “ ”. The CODE No. (DN) may skip.

Step 3 After writing down all setting data, push

(It takes approx. 1 min until the remote controller operation is available again.)

CODE No. required at least

DN Contents

10 11 12 13 14

Type

Indoor unit capacity

System address

Indoor unit address

Group address

and

TEST

button on the remote controller simultaneously for more than 4 seconds.

UNIT LOUVER

(left side button) button is pushed, the indoor unit No. under the group control

→ by pushing / buttons for the temperature

/ buttons for the temperature setting.

TEST

button to return to the normal stop status.

1. The CODE No. for the Indoor unit type and Indoor unit capacity are required to set the rotation number setting of the fan.

2. If the system/indoor/group addresses are different from those before replacement, the auto-address setting mode starts and the manual resetting may be required again. (when the multiple units group operation including twin system.)

[2] P.C. Board for indoor unit servicing replacement procedures

Step 1 Replace the P.C. board to the P.C. board for indoor unit servicing.

At this time, perform the same setting of the jumper wire (J01, J08, J09) setting (cut), switch SW501, (short-circuit) connector CN34 as the setting of the P.C. board before replacement.

If the plug for short-circuit is attached on the P.C. board before replacement, attach it on the P.C. board replaced.

Connector (CN504) for drain pump

Step 2 According to the system configuration, turn on the indoor unit following to the either methods shown below.

a) Single operation (Indoor unit is used as standalone.)

Turn on the indoor unit.

1. After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3]. (System address = 1, Indoor unit address = 1, Group address = 0 (standalone) are automatically set.)

Push

SET,CL

2. setting mode, and proceed to [3]. (The unit No. “ ” is displayed.)

and

TEST

buttons simultaneously for more than 4 seconds to interrupt the auto-address

- 65 -

Group operation Turn on the indoor unit(s) with its P

.C. board replaced to the P.C. board for indoor unit servicing, accord-

ing to either methods 1 or 2 shown below.

1. Turn on only the indoor unit with its P.C. board replaced. (Be sure to confirm the remote controller is surely connected. If not, the operation [3] cannot be performed.)

Perform either methods 1 or 2 described in item a) above.

2. Turn on the multiple indoor units including the indoor unit with its P.C. board replaced.

• All group connections

After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3]. ∗ The header unit of the group may be changed by performing the auto-address setting.

Also, the system address/Indoor unit address of the indoor unit with its P.C. board replaced may be assigned to the addresses (not used) other than those of the indoor units without its P.C. board replaced. It is recommended to keep the information in advance, which cooling system the indoor unit belongs to or whether the indoor unit works as the header unit or the follower unit in the group control operation.

[3] Writing the setting data to EEPROM

The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.

Step 1 Push

SET,CL

and

TEST

buttons on the remote controller simultaneously for more than 4 seconds.

∗ In the group control operation, the unit No. displayed for the first time is the header unit No.

At this time, the CODE No. (DN) shows “ ”. Also, the fan of the indoor unit selected starts its operation. (The unit No. “ ”

Step 2 Every time when

is displayed if the auto-address setting mode is interrupted in [2] step 2 a))

UNIT LOUVER

(left side button) button is pushed, the indoor unit No. in the group control operation are displayed in order. (The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.)

Specify the indoor unit No. with its P.C. board replaced to the P.C. board for indoor unit servicing. (You cannot perform this operation if “ ” is displayed.)

Step 3 Select the CODE No. (DN) can be selected by pushing the

/ button for the temperature setting.

• Set the indoor unit type and capacity.

The factory-set values shall be written to the EEPROM by changing

<Fig. 1 RBC-AMT32E>

the type and capacity.

Set the CODE No. (DN) to “ ”. (without change)

2. Select the type by pushing

/ buttons for the timer setting. (For example, 4-way Cassette Type is set to “0001”. Refer to table 2)

Push

button.

SET

(The operation completes if the setting data is displayed.) Change the CODE No. (DN) to “ ” by pushing

buttons for the temperature setting. Select the capacity by pushing /

buttons for the timer setting.

(For example, 280 Type is set to “0023”. Refer to table 3)

Push

button.

SET

(The setting completes if the setting data are displayed.)

3651 42

Setting Concealed Duct High Static Pressure Type

7. Using the set temperature

” to the CODE No. (DN).

8. Using the timer time / buttons, set the dat. (0001)

SET

9. Push

10.Push the

button (The setting completes if the setting data are displayed.)

TEST

button to return to the normal stop status

(It takes approx. 1 min until the remote control operation is available again.)

buttons, set “

Step 4 Write the on-site setting data to the EEPROM, such as address setting, etc. Perform the steps 1 and 2

- 66 -

above again.

Step 5 Change the CODE No. (DN) to “ ” by pushing / buttons for the temperature setting.

(this is the setting for the filter sign lighting time.)

Step 6 Check the setting data displayed at this time with the setting data put down in [1].

/ buttons for the timer setting toIf the setting data is different, modify the setting data by pushing

the data put down in [1]. The operation completes if the setting data is displayed.

2. If the data is the same, proceed to next step.

Step 7 Change the CODE No. (DN) by pushing

/ buttons for the temperature setting.

As described above, check the setting data and modify to the data put down in [1].

Step 8 Repeat the steps 6 and 7. Step 9 After the setting completes, push

TEST

button to return to the normal stop status.

(It takes approx. 1 min until the remote control operation is available again.) ∗ The CODE No. (DN) are ranged from “ ” to “ ”. The CODE No. (DN) is not limited to be serial No.

Even after modifying the data wrongly and pushing modification by pushing

button if the CODE No. (DN) is not changed.

SET

button, it is possible to return to the data before

<Fig. 2 EEPROM layout diagram>

The EEPROM (IC503) is attached to the IC sock et. When detaching the EEPROM, use a tw eezers, etc. Be sure to attach the EEPROM by fitting its direction as shown in the figure. ∗ Do not bend the IC lead when replacing.

EEPROM

Cut out

EEPROM

Cut out

IC socket

CODE No. list (Example)

- 67 -

CODE No. (DN)

01 02 03 06 0d 0F

10 11 12 13 14

28 31 32 5d 60

Filter sign lighting time Filter pollution level Central control address Heating suction temperature shift Existence of automatic COOL/HEAT mode Cooling only

Type Indoor unit capacity System address Indoor unit address Group address Temperature range of cooling / heating automatic SW control point Power failure automatic recovery Vent Fan (Single operation) Sensor SW (Selection of static pressure)

Static pressure selection

Timer setting (wired remote controller) Power save operation

Frost protection function

Presence of Application control kit

Item

Setting data Factory-set value

Depending on Type 0000: standard 0099: Not determined 0002: +2°C (Floor standing type: 0) 0001: No auto mode cooling / heating 0000: Heat pump

Depending on model type Depending on capacity type 0099: Not determined 0099: Not determined 0099: Not determined 0003: 3 deg (TS ± 1.5)

0000: None 0000: Not possible 0000: Body sensor 0000: Standard 0000: Available 0001: Standard

0000: None 0000: None

* Automatically selection

by connected outdoor unit

Type Code No. [10]

Setting data Type Model abb. name

0006

Concealed Duct High Static Pressure Type

RAV-RM∗∗∗DTP-E (TR)

Indoor unit capacity CODE No. [11]

Setting data Type

0000∗

0021

0023

Disable

224

280

8-2. Fan IPDU P.C. Board (MCC-1610)

- 68 -

Replacement steps:

[Remove PCB]

(1) Turn off the power supply of the indoor unit and allow at least one minute for the capacitor to discharge.

Confirm that the light of the LED (D640) fades away.

(2) Remove all the connectors which are connected to the FAN IPDU. (Remove the connectors by pulling

the connector body. Do not pull the wire, because there are some rocks in connector).

(3) Remove all the five screws (a) which secures the FAN IPDU to the Heat sink.(These screws are to be

re-used after procedure.)

(4) Remove the Fan IPDU from four PCB spacer (b).

Connection points

LED(D640)

(a)Screw

PCB(MCC1610)

Black White Red

leads from motor

Figure1 PCB outline

(b)Spacer

Figure2 After removing PCB

[Set PCB]

(5) Confirm that no dirt or damage is on the sub heat sink. And don’t forget to set sub heat sink. As it can

reduce the heat transfer efficiency, and cause a breakdown.

(6) Screw the FAN IPDU to the heat sink using the five screws that were removed in step (3). If the screws

are loose, the effected component will generate heat, and cause in to breakdown. Do not use an electric

driver or an air driver, as it can cause component damage. The torque of 5 screws (IC701, DB509,

DB510 and Q590) is “0.55Nm”.

(7) Re-connect the connectors. Be sure that all the connectors are connected correctly and securely

inserted.

Sub-Heat sink

(8)Install the cover, then turn on the supply. Check the operation.

10-3. N/F P.C. Board (MCC-1551) Replacement Procedure

(1) Turn off the power supply of the indoor unit

(2) Remove all the connectors and remove earth lead from metals. (Remove the connectors by pulling the

connector body. Do not pull the wire, because there are some rocks in connector).

(3) Remove the Fan IPDU from four PCB spacer (a).

(4) After changing PCB, re-connect the connectors. Be sure that all the connectors are connected correctly

and securely inserted. And Screw to earth lead.

(5) Install the cover, then turn on the supply. Check the operation.

Connection points

Power terminal side

FAN IPDU side

Earth lead

(a)Spacer

SETUP AT LOCAL SITE AND OTHERS

- 69 -

9-1. Indoor Unit

9-1-1. Test Run Setup on Remote Controller

1. When pushing Then push button.

• “TEST” is displayed on LC display during operation of Test Run.

• During Test Run, temperature cannot be adjusted but air volume can be selected.

• In heating and cooling operation, a command to fix the Test Run frequency is output.

•

Detection of check code 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

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.)

TEST

button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display.

ON / OFF

operation has stopped.

TEST

1 When TEMPORARY button is pushed for 10 seconds or more, “Pi!” sound is heard and the

operation changes to test run. After approx. 3 minutes, a cooling operation starts forcedly.

Check cool air starts blowing. If the operation does not start, check wiring again.

2 To stop a test operation, push TEMPORARY button once again (Approx. 1 second).

Check wiring / piping of the indoor and outdoor units in test run.

TEMPORARY button

9-1-2. Forced Defrost Setup of Remote Controller (For wired remote controller only)

- 70 -

(Preparation in advance)

TEST

1 Push

SET

+ CL 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.

2 Every pushing

UNIT

button, the indoor unit No. in the group control is displayed one after the

other.

Select a main indoor unit (outdoor unit is connected) which is to be defrosted. In this time, fan of the selected indoor unit operate.

3 Using the set temperature 4 Using the timer time 5 Push 6 Pushing

SET

button. (OK if indication lights)

TEST

button returns the status to the normal stop status.

TIME

TEMP.

buttons, specify the CODE No. (DN) 8C.

buttons, set time to data 0001. (0000 at shipment)

(Practical operation)

• Push ON/OFF

• Select the HEAT mode.

• After a 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.

ON / OFF

Key.

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.)

9-1-3. LED Display on Indoor P.C. Board

1. D501 (Red)

• Goes on at the same time when power was turned on (Main microcomputer operates and goes on.)

•

Flashes with 1-second interval (every 500ms): When EEPROM is not provided or writing was trouble.

• Flashes with 10-seconds interval (every 5S): When the mode is DISP

2. D403 (Red)

• Goes on when power is supplied to remote controller (Lights on the hardware)

SET

UNIT

LOUVER

9-1-4. Function Selection Setup

- 71 -

<Procedure> Perform setting while the air conditioner stops.

1 Push

The first displayed unit No. is the master indoor unit address in the group control. In this time, fan of the selected indoor unit operate.

SET

+ CL buttons simultaneously for 4 seconds or more.

Every pushing displayed one after the other. In this time, fan of the selected indoor unit only operate.

UNIT LOUVER

button (button at left side), the indoor unit No. in the group control is

3 Using the set temperature

TEMP.

buttons, specify the CODE No. (DN).

Using the timer time

Push

• To change the selected indoor unit, proceed to Procedure 2 .

• To change item to be set up, proceed to Procedure 3 .

6 Pushing

SET

button. (OK if indication lights)

TEST

button returns the status to the normal stop status.

TIME

buttons, select the set data.

1 2 3 4 5 6

ON / OF

TIMER SE

MOD

TESTRESE

SWING/FI

END

Item No. (DN) table (Selection of function)

- 72 -

Filter sign lighting time}

Dirty state of filter

Central control address

Heating suction temp shift

Cooling only

Type

Indoor unit capacity

Line address

Indoor unit address

Group address

Item

Description

0000 :None 0002 :2500H (4-Way/Duct/Ceiling Type)

0000 :Standard 0001 : High degree of dirt

(Half of standard time)

0001 :No.1 unit to 0064 : No.64 unit 0099 :Unfixed

0000 :No shift 0001 : +1°C 0002 :+2°C to 0010 : –10°C

(Up to recommendation + 6)

0000 :Heat pump 0001 : Cooling only

(No display of [AUTO] [HEAT])

0004 :Concealed duct type 0007 : Ceiling type 0014 :Compact 4-way cassette type

0000 : Unfixed 0009 : 56 type 0012 : 80 type 0015 : 110 type 0017 : 140 type

0001 :No.1 unit to 0030 : No.30 unit 0001 :No.1 unit to 0064 : No.64 unit 0000 :Individual 0001 : Master of group

0002 :Follower of group

At shipment

0002 :2500H

0000 : Standard

0099 : Unfixed

0002 : +2°C

0000 : Heat pump

According to model type

According to capacity type

0099 :Unfixed 0099 :Unfixed 0099 :Unfixed

Louver type (Air direction adjustment) ∗ None for concealed duct

Temp difference of automatic cooling/heating mode selection COOL → HEAT, HEAT →COOL

Auto restart after power failure

Option Thermostat output

selection (T10 e)

Option

Sensor selection

Temperature indication

40 Option 0003 :Default

42 Self clean time 0000: None

0000 :No louver 0001 : Swing only 0002 :1-way 0003 : 2-way 0004 :4-way

0000 :0 deg to 0010 : 10 deg (For setup temperature, reversal of COOL/HEAT by ± (Data value)/2)

0000 :None 0001 : Auto restart

0000 : Indoor thermostat ON 0001 : Output of outdoor comp-ON receiving

0000 :Body TA sensor 0001 : Remote controller sensor 0000 :°C (celsius) 0001 : °F (Fahrenheit)

0001: 0.5h to 0.012: 6.0h The case that compressor-ON time is 10 to 60 minutes is set up. When ON time is over 60 minutes, the operating time becomes two times of it.

According to model type

0003 :3 deg (Ts±1.5)

0000 :None

0002 :Default 0000: Thermostat ON

0000 :Default 0000 :Default 0000 :Default 0000 :Body sensor 0000 :°C

0002: 60 minutes

- 73 -

Item

Description

At shipment

High ceiling selection

(External static pressure selection)

Timer set (Wired remote controller)

77 Dual set point

B3 Soft cooling 0000: Unavailable

Correction of high heat feeling

Power sa ving (Current demand × % to outdoor unit)

Forced stop setting for self clean Self clean stop function when [START/

STOP] operation was prohibited

Set data

0000

150Pa

External static

pressure

The list above is when SW501-1 and SW501-2 is OFF.

(Factory default)

0000 :Available (Operable) 0001 :Unavailable (Operation prohibited)

0000: Unavailable 0002: Available

0001: Available

0000 :None 0001 : Correction 0050: 50% to 0100: 100%

0000: None 0001: Set When stopping the air conditioner (including “Fire alarm”

of the control system, etc.) while [START/STOP] operation is prohibited (Central 1, 2) from the central controller side, 0000: Valid (No self cleaning) 0001: Invalid (Self cleaning)

0001

50Pa

According to capacity type

0002

83Pa

−

− − − −

0003

217Pa

−

0004

117Pa

0005

183Pa

0000 :Available

0000: Unavailable

0001: Available

0000 :None 0075: 75%

0000: None 0000: Valid

0006

250Pa

Existence of Power save operation

Existence of 8°C heating operation

function Revolution count of self clean

Display/ No display of [SELF CLEANING]

during self clean operation

F6 Presence of Application control kit

∗ Restriction ratio setting for save operation (DN code No. [C2]) can be set/changed from the normal DN setup

(Detail DN setup).

0000: Invalid (Unavailable) 0001: Valid (Available)

0000: Invalid (Unavailable)} 0001: Valid (Available)

0000: Invalid (Self cleaning is not performed.) 0011: Valid (Self cleaning is performed at 310 rpm.)

0000: Displayed, 0001: Not displayed

0000: None 0001: Exist

0001: Valid (Available)

0000: Invalid (Unavailable)

0000: Invalid

0000: Displayed

0000: None

9-1-4. Cabling and Setting of Remote Controller Control

DIP-Switch [SW30]

4 ON=Follower OFF=Header 3 ON=B OFF=A 2 Not used 1 Not used

SW30

Bit3 : OFF ON

1ON234

- 74 -

2-remote controller control (Controlled by 2 remote controllers)

This control is to operate 1 or multiple indoor units are controlled by 2 remote controllers. (Max. 2 remote controllers are connectable.)

• When connected 2 remote controllers operate an indoor unit

Remote controller

switch (Master)

Sold

separately

BABA

Indoor unit

21 3

Outdoor unit

Remote controller

switch (Sub)

Sold

separately

Remote controller cables (Procured locally)

Terminal block for remote controller cables

(Setup method)

One or multiple indoor units are controlled by two remote controllers. (Max. 2 remote controllers are connectable.)

How to set wired remote controller as sub remote controller

Change DIP switch inside of the rear side of the remote controller switch from remote controller master to sub. (In case of RBC-AMT32E)

Remote controller (Inside of the rear side)

Sub remote

controller

Master remote

controller

1 2

DIP switch

Remote controller address (A-B selection) setting

• When two or more signal receiving units are installed in a room, a unique address can be set for each signal receiving unit to prevent interference.

• Address (A-B selection) must be changed on both signal receiving unit and wireless remote controller.

• For the details of address change (A-B selection) on wireless remote controller, refer to the owner’s manual.

Turn off the indoor unit power supply. Tur n on the bit 3 of DIP switch SW30 on the signal receiving unit P.C. board.

The setting change is shown below.

Wireless remote controller (A-B selection)

- 75 -

Using 2 wireless remote controllers for the respective air conditioners, when the 2 air conditioners are closely installed.

Wireless remote controller B setup

1. Start the air conditioner.

2. Point the wireless remote controller at the indoor unit.

3. Push and hold

button on the wireless

CHK

remote controller by the tip of the pencil. “00” will be shown on the display.

4. Push MODE

MODE

button during

CHK

pushing .

“B” will be shown on the display and “00” will be disappear and the air conditioner will turn OFF. The wireless remote controller B is memorized.

"B" Display

"00" Display

PRESET FAN

NOTE

• Repeat above step to reset wireless remote controller to be A.

• The wireless remote controllers do not display “A”.

• The factory default of the wireless remote controllers is “A”.

• A-B selection can be set with signal receiving unit. For the further details, refer to the installation manual.

9-1-5. Monitor Function of Remote Controller

SET

CLSAS

ON / OFF

UNIT

LOUVER

- 76 -



 Calling of sensor temperature display



Each sensor temperature of the remote controller, indoor unit, and outdoor unit can become known by calling the service monitor mode from the remote controller.

1 Push

+ CL 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.

0000

displayed.

2 Push temperature set

TEMP.

buttons and then change

the CODE No. of data to be monitored.

The item code list is shown below:

TIMER SE

TESTRESE

WING/FI

241 3

MOD

CODE No.

02 03

Indoor unit data

F2 F3

Data name

Room temperature (Remote controller)

Indoor suction temperature (TA) Indoor heat exchanger (Coil)

temperature (TCJ) Indoor heat exchanger (Coil)

temperature (TC) Indoor fan revolution frequency Indoor fan calculated operation time Filter sign time

Unit

°C

°C °C

°C

rpm

×100h

×1h

CODE No.

Outdoor heat exchanger (Coil) temperature (TE)

Outside temperature (TO)

Compressor discharge temperature (TD)

Compressor suction temperature (TS)

Heat sink temperature (THS)

Operation current (× 1/10)

Outdoor unit data

Outdoor heat exchanger (Coil) temperature (TL)

Compressor operation frequency

Outdoor fan revolution frequency (Lower)

Outdoor fan revolution frequency (Upper)

Compressor calculated operation time

1 2 3 4

Returned to usual display

Data name

Unit

°C °C °C °C °C

°C

rps rpm rpm

×100h

Push Each data of the indoor unit and its outdoor units can be monitored.

Pushing

• The data value of each item is not the real time, but value delayed by a few seconds to ten-odd seconds.

• If the combined outdoor unit is one before 2 or 3 series, the outdoor unit data [6D], [70], [72] and [73] are

NIT LOUVE

button to select the indoor unit to be monitored.

button returns the status to the usual display.

not displayed.



SET

CLSAS

ON / OFF

UNIT

LOUVER

- 77 -



Calling of trouble history



The trouble contents in the past can be called.

1 Push

buttons simultaneously for 4 seconds or

more to call the service check mode.

Service Check goes on, the CODE No. then the content of the latest alarm is displayed.

The number and trouble contents of the indoor unit in which trouble occurred are displayed.

is displayed, and

TIMER SE

MOD

2 In order to monitor another trouble history, push the set

TESTRESE

WING/FI

temperature / buttons to change the trouble

history No. (CODE No.)

CODE No. NOTE : 4 trouble histories are stored in memory.

3 Pushing

(Latest) → CODE No.

button returns the display to usual display.

REQUIREMENT

Do not push deleted by pushing CL button, turn off the power supply once and then turn on the power supply again. When the trouble which is same as one occurred at the last before deletion continuously occurs again, it may not be stored in memory.

button, otherwise all the trouble histories of the indoor unit are deleted. If the trouble histories are

(Old)

231

1 2 3

Returned to usual display

(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 (Individual/Header) controls room temperature according to setting on the remote controller.

OUT

1-1 2-1

OUT

Header

OUT

3-1 4-1 8-1

OUT

Max. 8 unit

Remote controller

1. Display range on remote controller The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the header unit is reflected on the remote controller.

1) Concealed duct high static pressure type (RAV-SMXXX) is not set up on the header unit.

• If the Concealed duct high static pressure type is the header unit: Operation mode: [Cooling/Heating AUTO] [HEAT] [COOL] [FAN] and no [DRY] Air volume select: [HIGH]

• When the operation mode is [DRY], [FAN] stops in concealed duct high static pressure models.

2. Address setup If there is no serial communication between indoor and outdoor when the power is turned on, it is judged as follower unit of the twin. (Every time when the power is turned on)

• The judgment of header (wired) / follower (simple) of twin is carried out every time. It is not stored in non-

volatile memory.

Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic address. If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the system is rebooted and the automatic address setting will be judged again.

1) Connect indoor/outdoor connecting wire surely.

2) Check line address/indoor address/group address of the unit one by one.

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.



- 78 -

 Indoor unit power-ON sequence



Power ON

Gr construction check

• The unit without power feed waits entirely → Waiting status is released by system start

• Reboot when power is fed on the way

Not normal NO

3 minutes elapse

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.

Header indoor unit and 1 or more follower units for Gr.

System start

Outdoor model distinction (10 seconds) (Indoor unit) Gr construction, (Remote controller)

Remote controller operation is available.

YES

Automatic address starts.

(Approx. 1 minute up to finish)

• 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

(Approx. 50 seconds after power-ON)

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.)

9-2. Setup at Local Site / Others

- 79 -

Model name: TCB-PCNT30TLE2

9-2-1. 1:1 Model Connection Interface

1. Function

This model is an optional P.C. board to connect the indoor unit to 1:1 model connection interface.

2. Microprocessor block diagram

Indoor unit

CN050

Indoor control

P.C. board

CN041

Terminal block (A, B)

Remote controller

1:1 model connection interface P.C. board

CN51

1:1 model

connection interface

communication circuit

CN40

Terminal

resistance

SW01

MCC-1440

Communication units : Total 64 units Communication distance : 2000 m

Central controller

1:1 model connection interface

3. 1:1 model connection interface wiring connection

CAUTION

1) When controlling customized setup collectively, 1:1 model connection interface (This option) is required.

2) In case of group operation, the 1:1 model connection interface is necessary to be connected to the main unit.

3) Connect the central control devices to the central control system wiring.

4) When controlling DI, SDI series only, turn on only Bit 1 of SW01 of the least line of the system address No. (OFF when shipped from the factory)

∗ In case of DI, SDI series, the address is necessary to be set up again from the wired remote

controller after automatic addressing.

Central control device

Outdoor unit

Caution 3

Indoor unit

Central control device

Refrigerant line 1

123

U1 U3

U2 U4

Central control devices: Max. 10 units

Refrigerant line 2

Header unit

123

U4 1 2 3

Refrigerant line 3

Follower unit

1:1 model connection interface

This product

( )

sold separately

Caution 1

[If mixed with SMMS series (Link wiring), multi indoor units are included.]

* However group follower units of SDI, DI series are not included in number of the units.

Indoor units in all refrigerant lines: Max.64 units

Caution 2

Group operation (Max. 8 units)

Remote controller

Remote controller Remote controllerRemote controller

wiring

4. Wiring specifications

- 80 -

• Use 2-core with no polar wire.

• Match the length of wire to wire length of the central

control system. If mixed in the SMMS system, the wire length is lengthened

with all indoor/outdoor inter-unit wire length at side.

No. of wires

Up to 1000m: twisted wire 1.25mm Up to 2000m: twisted wire 2.0mm

Size

• To prevent noise trouble, use 2-core shield wire.

• Connect the shield wire by closed-end connection and apply open process (insulating process) to the last

terminal. Ground the earth wire to 1 point at indoor unit side. (In case of central controlling of digital inverter (DI, SDI) unit setup)

CAUTION

1) Closed-end connection of shield wire (Connect all the connecting par ts of each indoor unit)

2) Apply open process to the last terminal (insulating process).

Central control device

Outdoor unit

3) Ground ear th wire to 1 point at indoor unit side.

Caution 2

123

Caution 1

Central control

system wiring

Indoor unit

123

Remote controller

Header unit

123

Remote controller

(Group operation)

Follower unit

123

Remote controller

: 1:1 model connection interface

(This option)

5. P.C. board switch (SW01) setup

When performing collective control by DI or SDI only, the setup of terminator is necessary.

• Using SW01, set up the terminator.

• Set up the terminator to only the adapter connected to the indoor unit of least line address No.

Central control device

Refrigerant line 1

Outdoor unit

Indoor unit

Central control device

123

Central control system wiring

Central control devices: Max. 10 units

Refrigerant line 2

Header unit

123

Refrigerant line 3

Follower unit

123

Indoor/outdoor inter-unit wire (AC230V serial)

1:1 model

connection interface

This product

( )

sold separately

Line address

SW01 Bit 1 SW01 Bit 2

Remarks

Remote controller Remote controller Remote controller

Turn SW01 Bit 1 to ON.

OFF

(Reference) Setup contents of switch

SW01

Bit 1 OFF

OFF

Bit 1 OFF OFF

ON ON

As status shipped from factory

Terminator

None 100Ω

75Ω 43Ω

Mixed with multi (Link wiring) at shipment from factory Central control by digital inverter only Spare Spare

Group operation (Max. 8 units)

OFF

(OFF at shipment from factory) (OFF at shipment from factory)

Remarks

Remote controller wiring

SET

CLSAS

ON / OFF

UNIT

LOUVER

6. External view of P.C. board assembly

- 81 -

Terminator (SW01)

7. Address setup

In addition to set up the central control address, it is necessary to change the indoor unit number. (Line/Indoor/Group address). For details, refer to 1:1 model connection interface Installation Manual.

9-3. How to Set up Central Control Address Number

When connecting the indoor unit to the central control remote controller using 1:1 model connection interface, it is necessary to set up the central control address number.

• The central control address number is displayed as the line No. of the central control remote controller.

<Procedure> Perform setup while the unit stops.

1 Push

TEST

When group control is executed, first the unit No. is displayed and all the indoor units in the group control are selected. In this time, fans of all the selected indoor units are turned on. (Fig. 1) (Keep displayed status without pushing

In case of individual remote controller which is not group-controlled, Line address and Indoor unit address are displayed.

2 Using temperature setup 3 Using timer time

The setup data is shown in the table below (Table 1).

4 Push 5 Push

SET

• To change the item to be set up, return to Procedure 2.

TEST

The status returns to usual stop status.

VENT

buttons for 4 seconds or more.

TEMP.

buttons, specify CODE No. !.

TIME

buttons, select the setup data.

button. (OK if display goes on.)

button.

UNIT LOUVER

button.)

(Fig.1)

(Table 1)

Setup data

0001 0002 0003

0064 0099

Central control address No.

1 2 3

Unset (Setup at shipment from factory)

2 1

TIMER SE

MOD

TESTRESE

WING/FI

1 4

How to confirm the central control address (New function for AMT32E remote controller)

- 82 -

<Procedure> It can be confirmed even during operation or stopping.

1 Push UNIT of

UNIT LOUVER

button for 4 seconds or more.

In the frame at left side of the remote controller screen, the lighting set contents are displayed.

During unset time, '' (At shipment from factory) is displayed.

After lighting display for 3 seconds, the display automatically disappears.

If any button is pushed during display, immediately the display disappears and then the pushed button is displayed.

10. ADDRESS SETUP

- 83 -

10-1. Address Setup Procedure

When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address setup completes with power-ON of the outdoor unit.

The operation of the remote controller is not accepted while automatic address works. (Approx. 4 to 5 minutes)

Setup of line address of outdoor unit, indoor unit address, and group address

Completion of cabling work

Do you arbitrarily set the

indoor unit address?

YES

Connect one remote controller with one indoor unit (1 : 1) tentatively with communication cable.

Turn on power of outdoor unit.

Set to all indoor units one by one.

(MANUAL)

Is group control performed?

YES

Do you change setting after

automatic setting at the first time?

YES

Turn on power of outdoor unit.

After completion of address setup, change is to arbitral

( )

address/group manually.

(To AUTO address mode)

Setup of automatic address finishes within

( )

4 to 5 minutes.

Is refrigerant line 1 line?

Turn on power of outdoor unit.

YES

END

• When the following addresses are not stored in the neutral memory (IC503) on the indoor P.C. board, a test

run operation cannot be performed. (Unfixed data at shipment from factory)

Line address Indoor unit

address

Group address

CODE No.

Data at shipment

0099

Setup data range

0001 (No. 1 unit) to 0030 (No. 30 unit) 0001 (No. 1 unit) to 0064 (No. 64 unit)

Max. value of indoor units in the identical refrigerant line 0000 : Individual (Indoor units which are not controlled in a group)

0001 : Header unit (1 indoor unit in group control) 0002 : Follower unit (Indoor units other than master unit in group control)

10-2. Address Setup & Group Control

- 84 -

Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64)

Group address : 0 = Single (Not group control)

1 = Header unit in group control 2 = Follower unit in g roup control

Header unit (= 1) : The representative of multiple indoor units in g roup oper ation sends/receives signals

to/from the remote controllers and follower indoor units . (∗ It has no relation with an indoor unit which communicates serially with the outdoor units.) The operation mode and setup temperature range are displayed on the remote controller LCD.

Follow er unit (= 2) : Indoor units other than header unit in group operation

Basically, follower units do not send/receive signals to/from the remote controllers. (Except troubles and response to demand of service data)

10-2-1. System Configuration

1. Single

Outdoor

Indoor

Remote controller

2. Single group operation

• Each indoor unit controls the outdoor unit individually.

2-1

Header/Sub

1-1

Header/Sub

4-1

Header/Master

1-1

Individual

(Header/Master)

3-1

Header/Sub

8-1

Header/Sub

10-2-2. Automatic Address Example from Unset Address (No miswiring)

- 85 -

1. Standard (One outdoor unit)

1) Single

1-1

Individual

(Header/Master)

Only turning on source power supply (Automatic completion)

2. Group operation (Multiple outdoor units = Multiple indoor units with serial communication only, without twin)

2-1

Header/Sub

1-1

Header/Sub

3-1

Header/Master

8-1

Header/Sub

(Max. : 8 units)

Only turning on source power supply (Automatic completion)

SET

ON / OFF

UNIT

LOUVER

10-3. Address Setup (Manual Setting from Remote Controller)

- 86 -

In case that addresses of the indoor units will be determined prior to piping work after cabling work

• Set an indoor unit per a remote controller.

• Turn on power supply.

(Example of 2-lines cabling) (Real line: Cabling, Broken line: Refrigerant pipe)

Outdoor

1 23

Outdoor

1 2 3

Line address → 1

Indoor unit address → 1

Group address → 1

1 Push

SET

+ CL +

TEST

buttons simultaneously

for 4 seconds or more.

←←

2 (

← Line address)

←←

Using the temperature setup

12 to the CODE No.

set

/ buttons,

3 Using timer time / buttons, set the line address. 4 Push 5 (

SET

button. (OK when display goes on.)

←←

← Indoor unit address)

←←

Using the temperature setup

/ buttons, set 13 to the CODE No.

6 Using timer time / buttons, set 1 to the line address. 7 Push 8 (

SET

button. (OK when display goes on.)

←←

← Group address)

←←

Using the temperature setup

/ buttons, set 14 to the CODE No.

1 2 3

Indoor

A B

Remote controller

For the above example, perform setting by connecting singly the wired remote controller without remote controller inter-unit cable.

Group address Individual : 0000

Header unit : 0001 Follower unit : 0002

1 2 3

Indoor

A B

2 1 2

In case of group control

9 Using timer time / buttons, set 0000 to Individual, 0001 to Master unit, and 0002 to sub unit. 10 Push 11 Push

SET

button. (OK when display goes on.)

TEST

button.

Setup completes. (The status returns to the usual stop status.)

2, 5, 8

END 11

TIMER SE

TIM

TESTRESE

MOD

VEN

WING/FI

3, 6, 9 4, 7, 10

1 2 3 4 5 6 7 8 9 10 11 END

SET

CLSAS

ON / OFF

UNIT

LOUVER

SET

CLSAS

ON / OFF

UNIT

LOUVER

10-4. Confirmation of indoor unit No. position

- 87 -

1. To know the indoor unit addresses though position of the indoor unit body is recognized

• In case of individual operation (Wired remote controller : indoor unit = 1 : 1) (Follow to the procedure during operation)

1 Push 2 Push UNIT of

Unit No. 1-1 is displayed on LCD. (It disappears after seve ral seconds.) The displayed unit No. indicate line address and

indoor unit address. (When other indoor units are connected to the

identical remote controller (Group control unit), other unit numbers are also display ed every pushing

UNIT LOUVER

ON / OFF

button.

button if the unit stops.

UNIT LOUVER

button.

TESTRESE

TIMER SE

MOD

WING/FI

Operation

2. To know the position of indoor unit body by address

• To confirm the unit No. in the group control (Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.)

The indoor unit numbers in the group control are successively displayed, and fan, and drain pump of the corresponding indoor unit are turned on. (Follow to the procedure during operation)

1 Push

VENT

and

TEST

buttons simultaneously for

4 seconds or more.

• Unit No. is displayed.

• Fans of all the indoor units in the group control operate.

2 Every pushing UNIT of

UNIT LOUVER

button, the unit numbers

in the group control are successivel y displayed.

• The unit No. displayed at the first time indicates the master unit address.

• Fan of the selected indoor unit only operate.

3 Push

TEST

button to finish the procedure.

All the indoor units in the group control stop.

1 2

END

TESTRESE

1 2 3

TIMER SE

END

MOD

WING/FI

11. DETACHMENTS

- 88 -

WARNING

Be sure to stop operation of the air conditioner before

work and then turn off switch of the breaker.

No.

①

Electrical parts box cover

1. Detachment

1) Remove the fixing screws A fixing the electrical parts box cover. Loosen the fixing screws B.

2) Slide the electrical parts box cover to the arrow direction

and remove the electrical parts box cover.

2. Attachment

1) Hang the electrical parts box cover to the screws B and tighten the screws.

2) Attach the removed screws A to the original positions.

CAUTION

Be sure to put on gloves during working time; otherwise an injury will be caused by a part, etc.

RemarksProcedurePart name

Electrical parts box cover

Screw A

Fan cotrol P.C. board MCC-1610

Screw B

Cotrol P.C. board MCC-1643

Control

②

P.C. board MCC-1643

1. Detachment

1) Perform 1 of ① t o remove the electrical parts box

cover.

2) Remove the connector of the below No. from the P.C.

board.

3) Unlock the locking card spacers (4 positions) in the

electrical parts box to remove the control P.C. board. CN41 : A,B terminal block (2P, Blue) CN67 : Power supply terminal block (5P: Black) CN101 : TC sensor (2P, Black) CN102 : TCJ sensor (2P, Red) CN104 : TA sensor (2P, Yellow) CN521 : UART(5P,Red) CN22 : Ground (Faston terminal) CN34 : Float switch (3P, Red) *Option

NOTE

First unlock the housing and then remove the connectors.

TA Sensor

CN104

Card spacer (4 positions)

Noise filter P.C. board MCC-1551

TC Sensor

CN101

TCJ Sensor

CN102

A,B terminal CN41

Float switch

CN34

UART CN521

Ground CN22

Power supply CN67

Part name Procedure Remarks

- 89 -

No.

Control

②

P.C. board MCC-1643

2. Attachment

1) Mount the control P.C. board in the electrical parts

box as before.

2) Be sure to wire in the electric parts box as before.

NOTE 1

Check if there is no missing or contact failure of the connectors.

NOTE 2

Be sure to wire as before.

3) Attach the electrical parts box cover as before.

Fan control

③

P.C. board MCC-1610

1. Detachment

1) Perform 1 of ① to remove the electrical parts box cover.

2) Remove the connector of the below No. from the P.C . board.

CN504 : UART (5P, Blue) CN500 : Power supply terminal block (3P: White) CN510 : Reactor (Faston terminal) CN511 : Reactor (Faston terminal) CN602 : Relay (2P, Black) CN703 : Fan motor (Black wire) W CN704 : Fan motor (White wire) V CN705 : Fan motor (Red wire) U

NOTE

First unlock the housing and then remove the

connectors.

3) Remove the screws A.

4) Unlock the card edge spacers (4 positions) in the electrical parts box to remove the fan control P.C. board.

2 . Attachment

1) Mount the fan control P.C. board in the electrical parts

box as before.

2) Be sure to wire in the electrical parts

box as before.

NOTE 1

Check if there is no missing or contact failure

of the connectors.

Power supply CN500

Reactor CN510,511

Uart

CN504

Fan motor CN703,704,705

Relay CN602

NOTE 2

Be sure to wire as before.

4) Attach the electrical parts box cover as before.

Screw A

Part name Procedure Remarks

- 90 -

No.

Noise filter

④

P.C. board MCC-1551

1. Detachment

1) Perform 1 of ①to remove the electrical parts box cover.

2) Remove the connector of the below No. from the P.C .

board.

CN01 : Power supply (Red wire)

CN02 : Power supply (White wire)

CN03 : Power supply (Red wire)

CN04 : Power supply (White wire)

3) Remove the screw of the earth wire.

4) Unlock the card edge spacers (4 positions) in the

electrical parts box to remove the noise filter P.C. board.

NOTE

First unlock the housing and then remove the

connectors.

2. Attachment

1) Mount the noise filter P.C. board in the electrical parts

box as before.

2) Be sure to wire in

the electric parts box as before.

NOTE 1

Check if there is no missing or contact failure of the connectors.

CN04

CN03

Earth screws

CN02

CN01

Power supply

Bottom plate

⑤

(fan side)

NOTE 2

Be sure to wire as before.

3) Attach the electrical parts box cover as before.

1. Detachment

Remove the screw A fixing the bottom plate

(fan side). Loosen the screw B.

2) Slide the bottom plate (fan side) to the arrow direction and remove the bottom plate (fan side).

2. Attachment

1) Hang the bottom plate (fan side) to the screw B.

2) Attach the removed screw A to the original positions.

3) Attach the bottom plate (fan side) as before.

Screw A

Bottom plate (fan side)

Screw B

Part name Procedure Remarks

- 91 -

No.

Fan motor,

⑥

Fan

1. Detachment

1) Perform 1 of ① to remove the electrical parts box

Wires of the fan motor CN703 CN704 CN705

cover.

2) Remove the connectors of the wires of the fan motor

from the fan control P.C. board.

CN703 : Fan motor (Black wire)

CN704 : Fan motor (White wire)

CN705 : Fan motor (Red wire)

Remove the ferrite core from wire of the fan motor.

Ferrite core

4) Perform 1 of ⑤ to remove the bottom plate(fan side).

Remove the screw A (M8 x 20, 8 pcs) . and loosen the screw B (M8 x 20, 2 pcs) . (The fan motor is in the temporary hanging state by the fixing plate.)

Remove the fan assembly.

Ferrite core

Screw A

Fan assembly

CAUTION

Weight of the fan assembly is about 30kg. Handle it by 2 workers.

7) Remove the screw C (M8 x 20, 8 pcs) .

8) Loosen the hexagonal bolt of the fan and

pull out the fan from the shaft.

9) Remove the screw D (4 pcs) from the fan case

and remove the nose plate and then take out the fan.

10) Remove the earth screw of fan motor.

11) Remove the screw E (M8 x 20, 2 pcs) and

remove the motor fixing plate and fan motor.

Earth screw

Screw B

Screw C

hexagonal bolt

Screw D

Nose plate

Part name Procedure Remarks

- 92 -

No.

Fan motor,

⑥

Fan,

2. Attachment

1) Screw the fan motor with the motor fixing plate. (M8 x 20, 2 pcs).

NOTE

Fix the wiring of the motor on the electrical parts box side as right figure.

2) Attach the earth screw.

3) Put the fan in the fan case.

Attach the nose plate to the original position on the fan case.

NOTE

Adjust the direction of the fan blade.

4) Insert the fan to the shaft.

5) Tighten the Screw C. (M8 x 20, 8 pcs)

6) Insert the fan to where the shaft of the fan motor stops,

and adjust the flat portion(2 places) ,

then tighten the hexagon head bolt.

NOTE

Check that if the fan rotate smoothly without touching the fan case.

Electrical parts box

Fan blade

shaft

Wiring of the motor

flat portion

Ground screw

NOTE

Be sure to use a torque wench for fixing and tighten with 10.0N•m

7) Hook the fan assembly on the looser screw B.

8) Tighten the screw A and B.(M8 x 20, 10 pcs)

9) A ferrite core is attached to the wire of a fan motor as before within an electric part box. Connect the wires of the fan motor as before, and close and fix the electrical parts box cover. Be sure to wire in the electrical parts box as before.

10) Attach the bottom plate(fan side) to the original position.

NOTE

When the ferrite core is attached to the earth wire of a fan motor as below photo, please repairing work indicated to P96 ~ 99.

Ferrite core attached in earth lead of motor

Wires of the fan motor CN703 CN704 CN705

Ferrite core

flat portion

Hexagonal bolt

Ferrite core

Part name Procedure Remarks

- 93 -

No.

⑦

Drain pan

1. Detachment

1) Remove the drain hose or drain cap and then extract the drain water accumulated in the drain pan.

NOTE

When removing the drain hose or drain cap, be sure

to take the drain water with a bucket, etc.

2) Remove the screw A fixing the bottom plate. (9 positions) Loosen the screw B. (4 positions)

3) Slide the bottom plate (drain side) to the arrow direction and then remove the panel.

4) Loosen the screw of the drain pan supporter, and turn the drain pan supporter.

5) Lower the drain pan of the drain socket side, and remove it to the arrow direction slowly.

CAUTION

When removing the drain pan, do not hold the drain socket. (Water leakage may occur.)

2. Attachment

1) Put back the drain pan, and turn back the drain pan supporter and fix it with the screws.

2) Attach the bottom plate (drain side) to the original position.

Bottom plate (Drain side)

Screw A

Drain pan supporter

Drain pan pull-out

direction.

Drain pan

Screw B

Drain socket

⑧

Sensor

TC, TCJ

1. Detachment

Perform 1 of ① to remove the electrical parts box cover.

Loosen the fixing screws of the inspection cover and

remove the inspection cover.

Remove the connectors of the wires of TC sensor and TCJ sensor from the control P.C. board.

CN101 : TC sensor (2P, Black) CN102 : TCJ sensor (2P, Red)

Remove the sensor from the

TC Sensor

CN101

TCJ Sensor

sensor holder.

sensor clip

sensor holder

Control P.C.board

MCC-1643

2. Attachment

Attach the TC sensor and TCJ sensor to the original position.

Attach the inspection cover as before.

Attach the wires of TC sensor, and TCJ sensor as

before.

Attach the electrical parts box cover as before.

Screw

CN102

Inspection cover

TCJ sensor

(Red)

TC sensor

(Black)

Part name Procedure Remarks

- 94 -

No.

Heat

⑨

exchanger

1. Detachment

1) Recover the refrigerant gas and then remove the refrigerant pipe of the indoor unit.

2) Perform 1 of ⑦ to remove the drain pan.

3) Remove the screw A (M4 x 0.4" (10mm), 7 pcs)

and remove the Left side panel.

4) After performing 1) and 3) of 1 of ⑧ , withdraw the wire of the sensor from the bushing to the heat exchanger side.

5) Remove the screw B (M4 x 0.4" (10mm), 3 pcs) and remove the evaporator partition (back).

Left side panel

6) Remove the screw C (M4 x 0.4" (10mm), 4 pcs) and remove the evaporator partition (down).

7) Remove the screw D (M4 x 0.4" (10mm), 5 pcs)

Screw A

of the right side panel.

8) While holding the heat exchanger, remove the screw E (M4 x 0.4" (10mm), 2 pcs) and then take out the heat exchanger slowly.

Right side panel

Heat exchanger

Screw E

Screw C

Evaporator partition (down)

2. Attachment

1) Attach the heat exchanger to the original position.

Screw E (M4 x 0.4" (10mm), 2 pcs)

2) Fix the screw D on the right side panel as before.

Screw D (M4 x 0.4" (10mm), 5 pcs)

3) Attach the evaporator partition (down) as before.

Screw C (M4 x0.4" (10mm), 4 pcs)

4) Attach the evaporator partition (back) as before.

Screw B (M4 x 0.4" (10mm), 3 pcs)

5) Perform 1) , 3) and 4) of 2 of ⑧ to attach the

sensor conector and electrical parts box cover .

6) Attach the Left side panel as before.

Screw A (M4 x 0.4" (10mm), 7 pcs)

7) Perform 2 of ⑦ to attach the drain pan and

bottom plate (drain side).

screw D

Screw E

Bushing

Screw B

Evaporator partition (back

Part name Procedure Remarks

- 95 -

No.

Sensor TA

⑩

1. Detachment

Perform 1 of ① and 1 of .

2) Remove the connector of the wires of TA sensor from the control P.C. board.

3) Pinch the lock of the TA sensor holder from the outside

of the electrical parts box and push it into the inside of the electrical parts box.

2. Attachment

Attach the TA sensor to the original position.

Attach the wires of TA sensor in the holder as before.

3) Attach the electronical parts box as before.

⑤

TA sensor CN104

Electrical parts

box

TA sensor holder

Reactor

⑪

NOTE

After assembling, check if that there is no abnormal sound, vibration, or puncture.

Check the exchange point when you have a problem.

1. Detachment

Perform 1 of ① and 1 of .

2) Remove the connector of the wires of the reactor from the fan control P.C. board.

Remove the screw fixing the reactor cover. Slide the reactor cover to the arrow direction and remove.

4) Remove the screw fixing the reactor.

Remove the reactor from the reactor cover.

2. Attachment

1) Attach the reactor to the reactor cover.

2) Attach the reactor cover as before.

Attach the

wires of the reactor in the

⑤

CN511 CN510

Screw

holder as before.

Reactor

Reactor cover

Screw

Reactor assembly

[The way of repairing high static duct 8/10HP according t

- 96 -

specification change]

1. Contents

(1) Target production (3) Remove ferrite core which is set in earth lead of fan motor (2) Replacing noise filter PCB (4) Add ferrite core to motor lead

. Req

(1) New noise filter PCB(MCC1551) (2) Tie band

. Target production

3-1 Target model name .

RAV-RM2241DTP-E/-TR High static duct 8HP LC RAV-RM2801DTP-E/-TR High static duct 10HP LC

3-2 Target products .

uired part

Model name Type System

The target is a

uct which is installed ferrite core in motor earth lead.

prod

Ferrite core attached

in earth lead of motor

The production year March, 2019 or before

4. The contents

4-1 Summary of modification points

Photo of control BOX inside before repairing

of o

PCB for motor

MCC1610

：Clamp filter ：Ferrite core

ther

pairing except motor exchanging

Replace noise filter

PCB to he new one

Noise filter PCB

MCC1551

Photo of control BOX inside after repairing

1. Remove the clamp filter

2. Install the ferrite core

which is set in earth lead of

fan motor

4-2 Replace to new noise filter PCB

Photo of motor earth lead before repairing Photo of motor earth lead after repairing

1. Remove the ferrite core

2.Tie the extra length of earth

lead by tie band

Step1

Step2

Step3

Old PCB : 1117878001 Alternate new PCB : 1117878002

- 97 -

[Step1]

Remove the earth screw from metal plate.

[Step2]

Remove four wiring (red and white) which are connected in PCB.

Notice : These wiring have lock mechanism. So when remove the wiring, it need to push the lock which

is set side of connector.

[Step3]

Unlock the four PCB spacers and remove.

[Step4]

Replace the new noise filter PCB to PCB spacer and connect wiring and tighten screw same as step 1 to 3.

Notice : Before replace the new noise filter PCB, check the number which is described in label on PCB

Old PCB : 1117878001 Alternate new PCB: 1117878002

4-3 Remove ferrite core which is set in earth lead of fan motor and bundle extra length

- 98 -

Step1

[Step1]

Remove the earth screw from metal plate.

[Step2]

Cut the tie band attached in ferrite core and remove a screw which is fixed the ferrite core.

[Step3]

Unwind the earth lead from ferrite core and take off ferrite core.

Notice : Keep the ferrite core. Because the ferrite core is used in motor lead later

[Step4]

Tighten the earth screw.

[Step5]

Bundle up the extra earth lead by folding in half at four times.

[Step6]

Tie the extra earth lead by tie band.

Step2

Step3

Step4

Step5

Step6

4-4 Install the ferrite core of motor earth lead to motor lead

Step1

PCB for motor

MCC1610

Step2

Step3 Reactor lead

Power lead

Step4

CN705(RED)

CN704(WHI)

CN703(BLK)

Step5

- 99 -

[Step1]

Remove the cramp filter from motor lead.

[Step2] Only motor lead has connect to PCB(MCC1610)

Remove the motor lead from PCB(MCC1610)

[Step3]

Through the motor lead in a hole of ferrite core at twice.

[Step4]

Connect the motor lead to PCB(MCC1610).

Notice : Check the connection between motor lead and connector on PCB invariably

Red motor lead = CN705(RED) White motor lead = CN704(WHI) Black lead = CN703(BLK)

[Step5]

Fix the ferrite core to motor lead and reactor lead and white lead of power lead by using tie band.

12. EXPLODED VIEWS AND PARTS LIST

- 100 -

12-1. RAV-RM2241DTP-E, RAV-RM2801DTP-E

RAV-RM2241DTP-TR, RAV-RM2801DTP-TR

210

207

208 209

211

204

202

213

205

211

214

218

201

203

217

206

212

216

219

215

217

220

Toshiba RAV-RM2801DTP-E, RAV-RM2241DTP-TR, RAV-RM2801DTP-TR, RAV-SM2244AT8-A1, RAV-SM2804AT8-A1 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual