Toshiba MMU-AP0302WH, MMU-AP0092WH, MMU-AP0562WH, MMU-AP0242WH, MMU-AP0182WH SERVICE MANUAL

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Leading Innovation

SERVICE MANUAL

AIR-CONDITIONER

<2-Way Air Discharge Cassette Type>

FILE NO. A10-007

MULTI TYPE

MMU-AP0072WH, MMU-AP0072WH-TR MMU-AP0092WH, MMU-AP0092WH-TR MMU-AP0122WH, MMU-AP0122WH-TR MMU-AP0152WH, MMU-AP0152WH-TR MMU-AP0182WH, MMU-AP0182WH-TR MMU-AP0242WH, MMU-AP0242WH-TR MMU-AP0272WH, MMU-AP0272WH-TR MMU-AP0302WH, MMU-AP0302WH-TR MMU-AP0362WH, MMU-AP0362WH-TR MMU-AP0482WH, MMU-AP0482WH-TR MMU-AP0562WH, MMU-AP0562WH-TR

• This Service Manual describes contents of the 2-Way Air Discharge Cassette indoor unit. For the outdoor unit, refer to the Manual with FILE No. A10-005, A05-004-1.

PRINTED IN JAPAN, Sep., 2010 ToMo

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CONTENTS

Original Instruction............................................................................ 3

Warning Indications on the Air Conditioner Unit ............................ 5

1. PRECAUTIONS FOR SAFETY .................................................... 6

2. SPECIFICATIONS......................................................................14

3. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ........................ 19

4. WIRING DIAGRAM .................................................................... 24

5. PART RATING............................................................................ 25

6. REFRIGERATING CYCLE DIAGRAM ....................................... 26

7. CONTROL OUTLINE ................................................................. 27

8. CONFIGURATION OF CONTROL CIRCUIT.............................. 36

9. APPLIED CONTROL ................................................................. 44

10. TROUBLESHOOTING ............................................................... 57

11. INSTALLATION MANUAL.......................................................... 86

12. P.C. BOARD EXCHANGE PROCEDURES .............................. 120

13. DETACHMENTS ...................................................................... 125

14. EXPLODED VIEWS AND PARTS LIST.................................... 139

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Original Instruction

Please read carefully through these instructions that contain important information which complies with the “Machinery“ Directive (Directive 2006/42/EC), and ensure that you understand them.

Some of the details provided in these instructions differ from the service manual, and the instructions provided here take precedence.

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service Person

A qualified installer or qualified service person is an agent who has the qualifications and knowledge described in the table below.

Agent

Qualified installer

Qualified service person

Qualifications and knowledge which the agent must have

• The qualified installer is a person who installs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such operations by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to these operations.

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

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

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

• The qualified service person is a person who installs, repairs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such operations by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to these operations.

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

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

• 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.

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Definition of Protective Gear

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

In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.

Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns, electric shocks and other injuries.

Work undertaken

All types of work

Electrical-related work

Work done at heights (50 cm or more)

Transportation of heavy objects

Repair of outdoor unit

Protective gloves ‘Safety’ working clothing

Gloves to provide protection for electricians and from heat 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 and from heat

Protective gear worn

The important contents concerned to the safety are described on the product itself and on this Service Manual.

Please read this Service Manual after understanding the described items thoroughly in the following contents (Indications/Illustrated marks), and keep them.

[Explanation of indications]

Indication

DANGER

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.

Explanation

Indicates possibilities assumed that a danger causing a death or serious injury of the repair

WARNING

CAUTION

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]

Mark Explanation

Indicates prohibited items (Forbidden items to do) The sentences near an illustrated mark describe the concrete prohibited contents.

Indicates mandatory items (Compulsory items to do) The sentences near an illustrated mark describe the concrete mandatory contents.

Indicates cautions (Including danger/warning) The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.

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Warning Indications on the Air Conditioner Unit

[Confirmation of warning label on the main unit]

Confirm that labels are indicated on the specified positions.

If removing the label during parts replace, stick it as the original.

Warning indication

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.

Description

WARNING

ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing.

WARNING

Moving parts. Do not operate unit with grille removed. Stop the unit before the servicing.

CAUTION

High temperature parts. You might get burned when removing this panel.

CAUTION

Do not touch the aluminium fins of the unit. Doing so may result in injury.

CAUTION

BURST HAZARD

Open the service valves before the operation, otherwise there might be the burst.

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.

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1. PRECAUTIONS FOR SAFETY

WARNING

Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air conditioner by following its instructions.

Only qualified service person (∗1) is allowed to repair the air conditioner. Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water leaks

and/or other problems.

Only a qualified installer (∗1) or qualified service person (∗1) is allowed to carry out the electrical work of the air conditioner.

Under no circumstances must this work be done by an unqualified individual since failure to carry out the work properly may result in electric shocks and/or electrical leaks.

When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and other protective clothing.

When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs, wear gloves to provide protection for electricians and from heat, insulating shoes and clothing to provide protection from electric shocks.

Failure to wear this protective gear may result in electric shocks.

Electrical wiring work shall be conducted according to law and regulation in the community and installation manual. Failure to do so may result in electrocution or short circuit.

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

General

When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the procedure in the ladder’s instructions.

Also wear a helmet for use in industry as protective gear to undertake the work.

When working at heights, put a sign in place so that no-one will approach the work location, before proceeding with the work.

Parts and other objects may fall from above, possibly injuring a person below.

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 outdoor unit. You may injure yourself if you do so. If the fin must be touched for some reason, first put on protective

gloves and safety work clothing, and then proceed.

Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of the outdoor unit and result in injury.

When transporting the air conditioner, wear shoes with additional protective toe caps.

When transporting the air conditioner, do not take hold of the bands around the packing carton. You may injure yourself if the bands should break.

Be sure that a heavy unit (10kg or heavier) such as a compressor is carried by two persons.

This air conditioner has passed the pressure test as specified in IEC 60335-2-40 Annex EE.

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Turn off

breaker.

Electric shock

hazard

DANGER

Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker for both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may result.

Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuit breaker to the OFF position.

Failure to set the circuit breaker to the OFF position may result in electric shocks through contact with the interior parts.

Only a qualified installer (*1) or qualified service person (*1) is allowed to remove the intake grille of the indoor unit or service panel of the outdoor unit and do the work required.

Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit breaker to the OFF position, and place a “Work in progress” sign on the circuit breaker.

When cleaning the filter or other parts of the indoor unit, set the circuit breaker to OFF without fail, and place a “Work in progress” sign near the circuit breaker before proceeding with the work.

When you have noticed that some kind of trouble (such as when an error 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 touch the air conditioner yourself but set 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 highvoltage capacitors. Natural discharge of the capacitor takes about five minutes.

Prohibition

Stay on

protection

Check earth

wires.

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 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.

WARNING

Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit, otherwise an electric shock is caused when a leak occurs.If the earth wire is not correctly connected, contact an electric engineer for rework.

After completing the repair or relocation work, check that the ground wires are connected properly.

Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock. Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for telephone wires.

Prohibition of

modification.

Use specified

parts.

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 parts satisfy the specifications given in the Service Manual (or use the parts contained on the parts list in the Service Manual).

Use of any parts which do not satisfy the required specifications may give rise to electric shocks, smoking and/or a fire.

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Do not bring a child close

to the equipment.

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 no-one will approach the work location before proceeding with the work.

Third-party individuals may enter the work site and receive electric shocks if this warning is not heeded.

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

When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oil that coats the pipes may otherwise burn.

When repairing the refrigerating cycle, take the following measures.

1) Be attentive to fire around the cycle. When using a gas stove, etc., be sure to put out fire before work;

otherwise the oil mixed with refrigerant gas may catch fire.

2) Do not use a welder in the closed room. When using it without ventilation, carbon monoxide poisoning

may be caused.

3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the

inflammables.

The refrigerant used by this air conditioner is the R410A.

Check the used refrigerant name and use tools and materials of the parts which match with it. For the products which use R410A refrigerant, the refrigerant name is indicated at a position on the

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

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

If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle and an injury due to breakage may be caused.

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.

Assembly/Wiring

Insulator check

Ventilation

When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other than R410A into the specified refrigerant.

If air or others is mixed with the refrigerant, abnormal high pressure generates in the refrigerating cycle resulted in cause of injury due to breakage.

After installation work, check the refrigerant gas does not leak. If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such as fan

heater, stove or cocking stove though the refrigerant gas itself is innocuous.

Never recover the refrigerant into the outdoor unit. When the equipment is moved or repaired, be sure to recover the refrigerant with recovering device. The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as breakage or

injury is caused.

After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before. Perform the work so that the cabinet or panel does not catch the inner wires. If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused at

user’s side.

After the work has finished, be sure to use an insulation tester set (500V Megger) to check the resistance is 1MΩ or more between the charge section and the non-charge metal section (Earth position).

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.

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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.

Compulsion

Check after

repair

Do not operate

the unit with

the valve closed.

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 shock 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 executed, a fire or an electric shock is caused. Before test run, install the front panel and cabinet.

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

Check the following matters before a test run after repairing piping.

• Connect the pipes surely and there is no leak of refrigerant.

• The valve is opened.

Running the compressor under condition that the valve closes causes an abnormal high pressure resulted in damage of the parts of the compressor and etc. and moreover if there is leak of refrigerant at connecting section of pipes, the air is sucked and causes further abnormal high pressure resulted in burst or injury.

Check after

reinstallation

Cooling check

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.

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 electric shock and 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.

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Installation

Only a qualified installer (∗1) or qualified service person (∗1) is allowed to install the air conditioner. If the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage,

noise and/or vibration may result.

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

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

Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit. Capacity overflow may occur on the terminal block and may result in fire.

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 qualified service person (∗1).

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.”

Page 11

SPECIFICATIONS

MMU-AP0072WH (–TR)

MMU-AP0092WH (–TR)

MMU-AP0122WH (–TR)

MMU-AP0152WH (–TR)

MMU-AP0182WH (–TR)

MMU-AP0242WH (–TR)

MMU-AP0272WH (–TR)

MMU-AP0302WH (–TR)

MMU-AP0362WH (–TR)

MMU-AP0482WH (–TR)

MMU-AP0562WH (–TR)

Under 70 dBA

∗

Model

Sound power level (dBA)

Cooling Heating

∗∗ ∗∗ ∗∗ ∗∗ ∗∗ ∗∗ ∗∗ ∗∗ ∗∗ ∗∗ ∗∗

Weight (kg)

19 (10)

26 (14)

36 (14)

DECLARATION OF CONFORMITY

Manufacturer: Toshiba Carrier Corporation

336 Tadehara, Fuji-shi, Shizuoka-ken 416-8521 JAPAN

Authorized Representative/ Nick Ball TCF holder: Toshiba EMEA Engineering Director

Toshiba Carrier UK Ltd. Porsham Close, Belliver Industrial Estate, PLYMOUTH, Devon, PL6 7DB. United Kingdom

Hereby declares that the machinery described below:

Generic Denomination: Air Conditioner

Model/type: Indoor unit

MMU-AP0072WH, MMU-AP0092WH, MMU-AP0122WH, MMU-AP0152WH, MMU-AP0182WH, MMU-AP0242WH, MMU-AP0272WH, MMU-AP0302WH, MMU-AP0362WH, MMU-AP0482WH, MMU-AP0562WH

MMU-AP0072WH-TR, MMU-AP0092WH-TR, MMU-AP0122WH-TR, MMU-AP0152WH-TR, MMU-AP0182WH-TR, MMU-AP0242WH-TR, MMU-AP0272WH-TR, MMU-AP0302WH-TR, MMU-AP0362WH-TR, MMU-AP0482WH-TR, MMU-AP0562WH-TR

Commercial name: Super Modular Multi System Air Conditioner

Complies with the provisions of the “Machinery” Directive (Directive 2006/42/EC) and the regulations transposing into national law

Complies with the provisions of the following harmonized standard:

EN 378-2: 2008+A1:2009

NOTE

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

Page 12

• New Refrigerant (R410A)

This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.

1. Safety Caution Concerned to New Refrigerant

The pressure of R410A is high 1.6 times of that of the former refrigerant (R22).

Accompanied with change of refrigerant, the refrigerating oil has been also changed.

Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refrigerant during installation work or service work.

If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident.

Use the tools and materials exclusive to R410A to purpose a safe work.

2. Cautions on Installation/Service

(1) Do not mix the other refrigerant or refrigerating oil.

For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of the former refrigerant in order to prevent mixture of them.

(2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools

which are specified for R410A.

(3) In the installation time, use clean pipe materials and work with great attention so that water and

others do not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc.

Use the clean pipes.

Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)

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

(5) R410A refrigerant is azeotropic mixture type refrigerant.

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

3. Pipe Materials

For the refrigerant pipes, copper pipe and joints are mainly used.

It is necessary to select the most appropriate pipes to conform to the standard.

Use clean material in which impurities adhere inside of pipe or joint to a minimum.

(1) Copper pipe

The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.

When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe without seam” and one with bonded oil amount 40mg/10m or less.

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

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

(2) Joint

The flare joint and socket joint are used for joints of the copper pipe.

The joints are rarely used for installation of the air conditioner.

However clear impurities when using them.

Page 13

4. Tools

(1) Required Tools for R410A

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

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

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

3) Tools commonly used for R410A and for conventional refrigerant (R22)

The table below shows the tools exclusive for R410A and their interchangeability.

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

Tools whose specifications are changed for R410A and their interchangeability

No.





   



  

Used tool

Flare tool

Copper pipe gauge for adjusting projection margin

Torque wrench

Gauge manifold

Charge hose

Vacuum pump adapter

Electronic balance for refrigerant charging

Refrigerant cylinder

Leakage detector

Charging cylinder

Usage

Pipe flaring

Flaring by conventional flare tool

Connection of flare nut

Evacuating, refrigerant charge, run check, etc.

Vacuum evacuating

Refrigerant charge

Gas leakage check

Refrigerant charge

air conditioner installation

R410A

Existence of Whether new equipment conventional equipment for R410A can be used

Ye s ∗(Note 1)

Ye s N o

Ye s Ye s

Ye s N o

(Note 2) No

Conventional air

conditioner installation

Whether new equipment can be used with conventional refrigerant

Ye s

∗(Note 1)

Ye s

(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection

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

(Note 2) Charging cylinder for R410A is being currently developed.

General tools (Conventional tools can be used.)

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

1) Vacuum pump Use vacuum pump by attaching vacuum pump adapter.

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

7) Screwdriver (+, –)

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

1) Clamp meter 3) Insulation resistance tester

2) Thermometer 4) Electroscope

Page 14

2-1. Indoor Unit

2. SPECIFICATIONS

MMU-AP0072WH, AP0092WH

Model name

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

(50/60 Hz)

MMU-AP0072WH MMU-AP0092WH

2.2 2.8

2.5 3.2

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.23 / 0.23 0.23 / 0.23

0.029 / 0.029 0.029 / 0.029

0.35 / 0.35 0.35 / 0.35

Heat-insulating material attached

Zinc hot dipping steel plate

295 295

815 815

570 570

19 19

Finned tube

Non-flammable insulation

Turbo fan

Fan unit Standard air flow (–M, –L) m³/h

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

558 (– 498 – 450) 558 (– 498 – 450)

20 20

Standard filter (Long life filter)

Remote controller

9.5 9.5

6.4 6.4

25 (Polyvinyl chloride tube)

34–32–30 34–32–30

RBC-UW283PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1050 × Depth 680

10 10

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC283UW-E

TCB-LF283UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 15

MMU-AP0122WH, AP0152WH

(50/60 Hz)

Model name

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Fan unit Standard air flow (–M, –L) m³/h

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

MMU-AP0122WH MMU-AP0152WH

3.6 4.5

4.0 5.0

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.23 / 0.23 0.24 / 0.24

0.029 / 0.029 0.030 / 0.030

0.35 / 0.35 0.36 / 0.36

Heat-insulating material attached

Zinc hot dipping steel plate

295 295

815 815

570 570

19 19

Finned tube

Non-flammable insulation

Turbo fan

558 (– 498 – 450) 600 (–534 – 450)

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring\

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

20 20

Standard filter (Long life filter)

Remote controller

9.5 12.7

6.4 6.4

25 (Polyvinyl chloride tube)

34–32–30 35–33–30

RBC-UW283PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1050 × Depth 680

10 10

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC283UW-E

TCB-LF283UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 16

MMU-AP0182WH, AP0242WH

(50/60 Hz)

Model name

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Fan unit Standard air flow (–M, –L) m³/h

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

MMU-AP0182WH MMU-AP0242WH

5.6 7.1

6.3 8.0

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.32 / 0.32 0.39 / 0.39

0.044 / 0.044 0.054 / 0.054

0.48 / 0.48 0.59 / 0.59

Heat-insulating material attached

Zinc hot dipping steel plate

345 345

1180 1180

570 570

26 26

Finned tube

Non-flammable insulation

Centrifugal fan

900 (– 750 – 618) 1050 (– 840 – 738)

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

30 40

Standard filter (Long life filter)

Remote controller

12.7 15.9

6.4 9.5

25 (Polyvinyl chloride tube)

35–33–30 38–35–33

RBC-UW803PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1415 × Depth 680

14 14

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC803UW-E

TCB-LF803UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 17

MMU-AP0272WH, AP0302WH

(50/60 Hz)

Model name

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Fan unit Standard air flow (–M, –L) m³/h

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

MMU-AP0272WH MMU-AP0302WH

8.0 9.0

9.0 10.0

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.39 / 0.39 0.46 / 0.46

0.054 / 0.054 0.064 / 0.064

0.59 / 0.59 0.69 / 0.69

Heat-insulating material attached

Zinc hot dipping steel plate

345 345

1180 1180

570 570

26 26

Finned tube

Non-flammable insulation

Centrifugal fan

1050 (– 840 – 738) 1260 (– 900 – 780)

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

40 50

Standard filter (Long life filter)

Remote controller

15.9 15.9

9.5 9.5

25 (Polyvinyl chloride tube)

38–35–33 40–37–34

RBC-UW803PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1415 × Depth 680

14 14

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC803UW-E

TCB-LF803UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 18

MMU-AP0362WH, AP0482WH, AP0562WH

(50/60 Hz)

Model name

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Fan unit Standard air flow (–M, –L) m³/h

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

MMU-AP0362WH MMU-AP0482WH MMU-AP0562WH

11.2 14.0 16.0

12.5 16.0 18.0

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.48 / 0.48 0.57 / 0.57 0.75 / 0.75

0.073 / 0.073 0.088 / 0.088 0.117 / 0.117

0.72 / 0.72 0.86 / 0.86 1.13 / 1.13

Heat-insulating material attached

Zinc hot dipping steel plate

345 345 345

1600 1600 1600

570 570 570

36 36 36

Finned tube

Non-flammable insulation

Centrifugal fan

1740 (–1434–1182) 1800 (–1482–1230) 2040 (–1578–1320)

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

70 70 70

Standard filter (Long life filter)

Remote controller

15.9 15.9 15.9

9.5 9.5 9.5

25 (Polyvinyl chloride tube)

42–39–36 43–40–37 46–42–39

RBC-UW1403PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1835 × Depth 680

14 14 14

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC1403UW-E

TCB-LF1403UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 19

MMU-AP0072WH-TR, AP0092WH-TR

(50 Hz)

Model name

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Fan unit Standard air flow (–M, –L) m³/h

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

MMU-AP0072WH-TR MMU-AP0092WH-TR

2.2 2.8

2.5 3.2

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.23 0.23

0.029 0.029

0.35 0.35

Heat-insulating material attached

Zinc hot dipping steel plate

295 295

815 815

570 570

19 19

Finned tube

Non-flammable insulation

Turbo fan

558 (– 498 – 450) 558 (– 498 – 450)

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

20 20

Standard filter (Long life filter)

Remote controller

9.5 9.5

6.4 6.4

25 (Polyvinyl chloride tube)

34–32–30 34–32–30

RBC-UW283PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1050 × Depth 680

10 10

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC283UW-E

TCB-LF283UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 20

MMU-AP0122WH-TR, AP0152WH-TR

(50 Hz)

Model name

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Fan unit Standard air flow (–M, –L) m³/h

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

MMU-AP0122WH-TR MMU-AP0152WH-TR

3.6 4.5

4.0 5.0

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.23 0.24

0.029 0.030

0.35 0.36

Heat-insulating material attached

Zinc hot dipping steel plate

295 295

815 815

570 570

19 19

Finned tube

Non-flammable insulation

Turbo fan

558 (– 498 – 450) 600 (–534 – 450)

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

20 20

Standard filter (Long life filter)

Remote controller

9.5 12.7

6.4 6.4

25 (Polyvinyl chloride tube)

34–32–30 35–33–30

RBC-UW283PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1050 × Depth 680

10 10

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC283UW-E

TCB-LF283UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 21

MMU-AP0182WH-TR, AP0242WH-TR

(50 Hz)

Model name

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Fan unit Standard air flow (–M, –L) m³/h

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

MMU-AP0182WH-TR MMU-AP0242WH-TR

5.6 7.1

6.3 8.0

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.32 0.39

0.044 0.054

0.48 0.59

Heat-insulating material attached

Zinc hot dipping steel plate

345 345

1180 1180

570 570

26 26

Finned tube

Non-flammable insulation

Centrifugal fan

900 (– 750 – 618) 1050 (– 840 – 738)

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

30 40

Standard filter (Long life filter)

Remote controller

12.7 15.9

6.4 9.5

25 (Polyvinyl chloride tube)

35–33–30 38–35–33

RBC-UW803PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1415 × Depth 680

14 14

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC803UW-E

TCB-LF803UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 22

MMU-AP0272WH-TR, AP0302WH-TR

(50 Hz)

Model name

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Fan unit Standard air flow (–M, –L) m³/h

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

MMU-AP0272WH-TR MMU-AP0302WH-TR

8.0 9.0

9.0 10.0

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.39 0.46

0.054 0.064

0.59 0.69

Heat-insulating material attached

Zinc hot dipping steel plate

345 345

1180 1180

570 570

26 26

Finned tube

Non-flammable insulation

Centrifugal fan

1050 (– 840 – 738) 1260 (– 900 – 780)

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

40 50

Standard filter (Long life filter)

Remote controller

15.9 15.9

9.5 9.5

25 (Polyvinyl chloride tube)

38–35–33 40–37–34

RBC-UW803PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1415 × Depth 680

14 14

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC803UW-E

TCB-LF803UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 23

MMU-AP0362WH-TR, AP0482WH-TR, AP0562WH-TR

(50 Hz)

Model name MMU-

Cooling capacity (∗1) kW

Heating capacity (∗1) kW

Power supply

Electrical charastaristics

Appearance

Outer dimension Width mm

Total weight kg

Heat exchanger

Soundproof/Heat-insulating material

Fan unit Standard air flow (–M, –L) m³/h

Running current A

Power consumption kW

Starting current A

Height mm

Depth mm

Fan

AP0362WH-TR AP0482WH-TR AP0562WH-TR

11.2 14.0 16.0

12.5 16.0 18.0

1 phase 50 Hz 230 V (220 V-240 V) /1 phase 60 Hz 220 V

(Separate power supply for indoor units is required.)

0.48 0.57 0.75

0.073 0.088 0.117

0.72 0.86 1.13

Heat-insulating material attached

Zinc hot dipping steel plate

345 345 345

1600 1600 1600

570 570 570

36 36 36

Finned tube

Non-flammable insulation

Centrifugal fan

1740 (–1434–1182) 1800 (–1482–1230) 2040 (–1578–1320)

Motor W

Air filter

Controller (∗2)

Connecting pipe

Drain port (Nominal dia. mm)

Sound puressure level High (–Mid., –Low) dB

Ceiling panel (∗2)

Remote controller wiring

Crossover wiring

Option parts

Gas side mm

Liquid side mm

Model name

Appearance (Color)

Outer dimension mm

Total weight kg

(Up to 1000 m) (Up to 2000 m)

Auxiliary fresh air flange

Filter chamber

Super long life filter

70 70 70

Standard filter (Long life filter)

Remote controller

15.9 15.9 15.9

9.5 9.5 9.5

25 (Polyvinyl chloride tube)

42–39–36 43–40–37 46–42–39

RBC-UW1403PG(W)-E

Moon white (Muncel 2.5GY9.0/0.5)

Height 20 × Width 1835 × Depth 680

14 14 14

VCTF 0.5 to 2.0 mm² (2 cores)

MVVS (Shield wire) 1.25 mm² × 2 cores MVVS (Shield wire) 2.00 mm² × 2 cores

TCB-FF151US-E

TCB-FC1403UW-E

TCB-LF1403UW-E

Wireless remote controller Kit

RBC-AX23UW (W)-E

(∗1) Cooling / heating capacity is based on single connection operation with standard piping length under

Japanese Industrial Standard B 8615 Condition 1.

(∗2) Remote controller and ceiling panel are sold separately.

Page 24

3. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

3-1. 2-Way Air Discharge Cassette Type

MMU-AP0072WH (-TR), AP0092WH (-TR), AP0122WH (-TR)

1000mm or more

5mm or more

or more 1000mm

Obstruct

1000mm or more

241

103

Knockout square

hole for auxiliary

fresh air flange

Connecting port for

drain pipes

(Be sure to connect

the attached flexible

hose.)

190

147.5

137.5

10 (kg)

Center panel: Iron (Coating)

Inner frame: Aluminum (Coating)

Outer frame: Adjust cover: Resin (PS)

Moon white (Munsell symbol 2.5G Y9.0/0.5)

570 Unit outer size

185

Space required for installation and service work

Connecting port

for refrigerant pipes

Standard panel mass

Standard panel material

Outer coating color of

standard panel

Connecting port for

refrigerant pipes

Gas side Ø9.5

Liquid side Ø6.4

295

Draw-in port for wiring

189

151

for Ø150

Knockout square

hole for auxiliary

fresh air flange

for Ø150

300

150

257.5

Ø162

105

202

Ø162

105

Arrow Figure A

105

Electric parts box

Hanging bolt M10 or

W3/8 procured locally

C/L

300

95.5

480

Knockout

815 Unit outer size

312

215

105

Ø162

213.5

105

178

Ceiling panel (Sold separately)

Under surface of ceiling

Knockout square hole

to intake outdoor air

For Ø150

Adjust cover

Center panel

Inner frame

Outer frame

1050 Panel outer size

880 Hanging bolt pitch

1000~1010 Ceiling opening size

380 Hanging bolt pitch

620 Ceiling opening size

680 Panel outer size

C/L

below 850

Rise-up

Rise-up below 609

Under surface of ceiling

Adhere with adhesive

for vinyl chloride

Drain-up rise-up size

Tighten with

Indoor unit

attached hose band.

Page 25

MMU-AP0152WH (-TR)

1000mm or more

5mm or more

or more 1000mm

Obstruct

1000mm or more

241

103

Knockout square

hole for auxiliary

fresh air flange

Connecting port for

drain pipes

(Be sure to connect

the attached flexible

hose.)

190

147.5

137.5

10 (kg)

Center panel: Iron (Coating)

Inner frame: Aluminum (Coating)

Outer frame: Adjust cover: Resin (PS)

Moon white (Munsell symbol 2.5G Y9.0/0.5)

570 Unit outer size

185

Space required for installation and service work

Connecting port

for refrigerant pipes

Standard panel mass

Standard panel material

Outer coating color of

standard panel

Connecting port for

refrigerant pipes

Gas side Ø12.7

Liquid side Ø6.4

295

Draw-in port for wiring

189

151

for Ø150

Knockout square

hole for auxiliary

fresh air flange

for Ø150

300

150

257.5

Ø162

105

202

Ø162

105

Arrow Figure A

105

Electric parts box

Hanging bolt M10 or

W3/8 procured locally

C/L

300

95.5

480

Knockout

815 Unit outer size

312

215

105

Ø162

213.5

105

178

Ceiling panel (Sold separately)

Under surface of ceiling

Knockout square hole

to intake outdoor air

For Ø150

Adjust cover

Center panel

Inner frame

Outer frame

1050 Panel outer size

880 Hanging bolt pitch

1000~1010 Ceiling opening size

380 Hanging bolt pitch

620 Ceiling opening size

680 Panel outer size

C/L

below 850

Rise-up

Rise-up below 609

Under surface of ceiling

Adhere with adhesive

for vinyl chloride

Drain-up rise-up size

Tighten with

Indoor unit

attached hose band.

Page 26

MMU-AP0182WH (-TR)

1000mm or more

or more 5mm

Obstruct

1000mm or more

Electric

120

105

Ø162

226.5

Arrow Figure A

14 (kg)

Center panel: Iron (Coating)

Inner frame: Aluminum (Coating)

Outer frame: Adjust cover: Resin (PS)

Moon white (Munsell symbol 2.5G Y9.0/0.5)

Connecting port for

drain pipes

(Be sure to connect

the attached flexible

95 190

137.5 147.5

570 Unit outer size

185 80 20

291

103

hose.)

Draw-in port for wiring

242

Knockout square

hole for auxiliary

fresh air flange

for Ø150

Knockout

105

480

490 100 335 255

Space required for installation and service work

Connecting port for

refrigerant pipes

Liquid side Ø6.4

Connecting port

for refrigerant pipes

Gas side Ø12.7

345

255

151

255

Standard panel mass

Standard panel material

Outer coating color of

standard panel

parts box

C/L

559 below Rise-up

300

C/L

below 850

Rise-up

1415 Panel outer size

1245 Hanging bolt pitch

1365~1375 Ceiling opening size

380 Hanging bolt pitch

620 Ceiling opening size

680 Panel outer size

Under surface of ceiling

Adhere with adhesive

for vinyl chloride

Hanging bolt

M10 or W3/8

Knockout

1180 Unit outer size

Knockout square hole for auxiliary

fresh air flange for Ø150

Knockout square

hole to intake outdoor

procured locally

120

480

Ø162

105

255 335 110 480

air For Ø150

Ø162

105

226.5

Ceiling panel (Sold separately)

Under surface of ceiling

Adjust cover

Outer frame

Inner frame

Center panel

Tighten with

Indoor unit

Drain-up rise-up size

attached hose band.

178

Page 27

MMU-AP0242WH (-TR), AP0272WH (-TR), AP0302WH (-TR)

1000mm or more

or more 5mm

Obstruct

1000mm or more

Electric

105

120

Ø162

226.5

Arrow Figure A

14 (kg)

Center panel: Iron (Coating)

Inner frame: Aluminum (Coating)

Outer frame: Adjust cover: Resin (PS)

Moon white (Munsell symbol 2.5G Y9.0/0.5)

Connecting port for

drain pipes

(Be sure to connect

the attached flexible

95 190

137.5 147.5

570 Unit outer size

185 80 20

291

103

hose.)

Draw-in port for wiring

242

Knockout square

hole for auxiliary

fresh air flange

for Ø150

Knockout

105

480

490 100 335 255

Space required for installation and service work

Connecting port for

refrigerant pipes

Liquid side Ø6.4

Connecting port

for refrigerant pipes

Gas side Ø15.9

345

255

151

255

Standard panel mass

Standard panel material

Outer coating color of

standard panel

parts box

C/L

559 below Rise-up

300

C/L

below 850

Rise-up

1415 Panel outer size

1245 Hanging bolt pitch

1365~1375 Ceiling opening size

380 Hanging bolt pitch

620 Ceiling opening size

680 Panel outer size

Under surface of ceiling

Adhere with adhesive

for vinyl chloride

Hanging bolt

M10 or W3/8

Knockout

1180 Unit outer size

Knockout square hole for auxiliary

fresh air flange for Ø150

Knockout square

hole to intake outdoor

procured locally

120

480

Ø162

105

255 335 110 480

105

air For Ø150

Ø162

226.5

Ceiling panel (Sold separately)

Under surface of ceiling

Adjust cover

Outer frame

Inner frame

Center panel

Tighten with

Indoor unit

Drain-up rise-up size

attached hose band.

178

Page 28

MMU-AP0362WH (-TR), AP0482WH (-TR), AP0562WH (-TR)

226.4

1000mm or more

or more

5mm

1000mm or more

Obstruct

Electric

or more

1000mm

parts box

105

480

Ø162

105

120

105

Ø162

255

Arrow Figure A

14 (kg)

Center panel: Iron (Coating)

Inner frame: Aluminum (Coating)

Outer frame: Adjust cover: Resin (PS)

Moon white (Munsell symbol 2.5G Y9.0/0.5)

Standard panel mass

Standard panel material

Outer coating color of

standard panel

291

103

Connecting port for

drain pipes

(Be sure to connect

the attached flexible

hose.)

95 190

137.5 147.5 80

570 Unit outer size

185

Space required for installation and service work

Connecting port for

refrigerant pipes

Liquid side Ø9.5

Hanging bolt

M10 or W3/8

Connecting port

for refrigerant pipes

Gas side Ø15.9

procured locally

480

345

242

255

Draw-in port for wiring

151

Knockout square

hole for auxiliary

fresh air flange

for Ø150

Knockout square

hole for auxiliary

fresh air flange

for Ø150

Knockout

400 275

125

490 310

Knockout

C/L

below 559 Rise-up

300

C/L

1665 Hanging bolt pitch

380 Hanging bolt pitch

620 Ceiling opening size

680 Panel outer size

below 850

Rise-up

Under surface

of ceiling

Adhere with

adhesive for

1785~1795 Ceiling opening size

vinyl chloride

1835 Panel outer size

Knockout square

hole for auxiliary

fresh air flange

Knockout square

hole for auxiliary

fresh air flange

Drain-up rise-up size

480

320125400275

1600 Unit outer size

for Ø150

Knockout square

hole to intake outdoor

105105

air For Ø150

Ø162

120

Ø162

105

Ø162

105

Inner frame

Ceiling panel (Sold separately)

Center panel

Outer frame

226.5

Under surface of ceiling

Adjust cover

Indoor unit

Tighten with

attached hose band.

178

Page 29

4. WIRING DIAGRAM

4-1. 2-Way Air Discharge Cassette Type

GRY: GRAY

GRN: GREEN

BRW: BROWN

Color Indication

LM2

LM1

RED: RED

WHI: WHITE

YEL: YELLOW

BLU: BLUE

BLK: BLACK

1 3

CN34

CN33

12345

1 2

CN110

1 2

CN111

12345

(RED)

(WHI)

(FLEX)

CN81

(BLK)

(CHK)

CN71

t˚

CN104

(DISP)

CN72

(YEL)

CN102

TCJ

t˚

(RED)

DC20V

DC16V

DC12V

TC2

t˚

CN101

DC7V

(BLK)

123

TC1

t˚

CN100

(BRW)

12345

N50

(WHI)

CN61

CN80

(YEL)

(GRN)

CN73

(RED)

123

Parts name

Connector

Drain pump Motor

Fuse

Symbol

CN**DMF301, 302FMFS

Fan Motor

Float Switch

Louver Motor

LM1, 2

Pulse Motor Valve

Relay

Reactor

Indoor temp. sensor

Terminal Block

Temp. sensor

PMVLRY302, 303TATB1, 2

TC1, TC2, TCJ

(HIGH CEILING

RESHUFFLING)

PMW

3 ~

RED

CN333

CN334

WHI

1 2

CN112

(WHI)

CN82

(BLU)

123456

12345

(WHI)

RY302

12345

(WHI)

CN68(BLU)

P036 ~ P056

Type only

CN70

(WHI)

1 2 1 2

Powe r

supply

circuit

(OPTION)

CN60

(WHI)

CN32

CN20

CN41(BLU)

BLK

BLU

123456 123456

1 2

(WHI)

(BLU)

12345

1 3

CN309

BLK

(YEL)

TB2

BLK

WHI

1. Long dashed double short dashed line indicate the wiring site.

Broken line indicate the accessories.

2. indicates the terminal block.

indicates the connection terminal.

indicates the connector on the control P.C. board.

3. indicates the protection ground.

4. indicates the control P.C. board.

BLK

1 2

Adapter for

Wireless

WHI

Outdoor

unit

Remote controller

Wired

Remote controller

F302

T3.15A

250V ~

Control P.C. board for Indoor unit

RY303

F301

T6.3A

250V ~

CN67

(BLK)

RED

WHI

BLK

P007 ~ P030

Type only

S(N)

R(L)

TB1

CN66(WHI)

Power supply

1 ~ 50Hz 220V-240V

1 ~ 60Hz 220V

CN40(BLU)

BLU

Flow selector

unit

Indoor unit

Earth screw

Flow selector unit

Earth screw

Page 30

5. PARTS RATING

5-1. Parts Rating

5-1-1. 2-Way Air Discharge Cassette Type

Model name

Fan motor

Drain pump motor

Float switc

TA sensor

TC1 sensor

TC2 sensor

TCJ sensor

Pulse motor

PMV

Model name

Fan motor

Drain pump motor

Float switc

TA sensor

TC1 sensor

TC2 sensor

TCJ sensor

Pulse motor

PMV

MMU-

AP0072WH AP0092WH AP0122WH AP0152WH AP0182WH AP0242WH AP0272WH AP0302WH

SWF-230-60-1R SWF-280-60-1R

ADP-1409

FS-0218-103

Lead wire length 268 mm

Ø4 size lead wire length : 1200 mm, vinyl tube (Blue)

Ø6 size lead wire length : 1200 mm vinyl tube (Black)

Ø6 size lead wire length : 1200 mm vinyl tube (Red)

EMD-MD12TF-3

EFM-25YGTF-1 EFM-40YGTF-2

MMU-

AP0362WH AP0482WH AP0562WH

SWF-280-120-2R

ADP-1409

FS-0218-103

Lead wire length : 268 mm

Ø4 size lead wire length : 1200 mm vinyl tube (Blue)

Ø6 size lead wire length : 1200 mm vinyl tube (Black)

Ø6 size lead wire length : 1200 mm vinyl tube (Red)

EMD-MD12TF-3

EFM-60YGTF-1

5-1-2. Indoor Unit (Other Parts)

No.

Fan motor (Model: SWF-230-60-1R)

Fan Motor (Model: SWF-280-120-2R)

Part name

Measure the resistance value of winding by using the tester.

Red

White Black

Red

White Black

Checking procedure

Position

Red - White

White - Black

Black – Red

Position

Red - White

White - Black

Black – Red

Resistance value

87 ± 8.7 Ω

Under 20°C

Resistance value

37 ± 3.7 Ω

Under 20°C

Page 31

6. REFRIGERATING CYCLE DIAGRAM

Gas sideLiquid side

Strainer

Pulse Motor Valve (PMV)

Sensor

(TC2)

Capillary tube

Strainer

Sensor

(TCJ)

Air heat exchanger

at indoor side

Fan

Sensor

(TA)

Sensor

(TC1)

Fan motor

Functional part name

Pulse Motor Valve PMV

Temp. sensor 1. TA

2. TC1

3. TC2

4. TCJ

Functional outline

(Connector CN082 (6P): Blue)

1) Controls super heat in cooling operation

2) Controls under cool in heating operation

3) Recovers refrigerant oil in cooling operation

4) Recovers refrigerant oil in heating operation

(Connector CN104 (2P): Yellow)

1) Detects indoor suction temperature

(Connector CN100 (3P): Brown)

1) Controls PMV super heat in cooling operation

(Connector CN101 (2P): Black)

1) Controls PMV under cool in heating operation

(Connector CN102 (2P): Red)

1) Controls PMV super heat in cooling operation

Page 32

7. CONTROL OUTLINE

7-1. Control Specifications

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

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

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

Based on EEPROM data, select setting of the indoor fan speed and the existence of air direction adjustment.

3) If resetting the power supply during occurrence of a trouble, the check code is once cleared. After ON/OFF button of the remote controller was pushed and the operation was resumed, if the abnormal status continues, the check code is again displayed on the remote controller.

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

(SHRM only)

Air conditioner stops.

Fan operation

Cooling operation

Dry operation

Heating operation

• Ta and Ts automatically select COOL/ HEAT operation mode 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 – 1 < Ta < Ts + 1, Cooling thermo. OFF (Fan) / Setup air volume operation continues.)

Control outline

Remarks

Air speed (rpm)/ Air direction adjustment

Ta: Room temp. Ts: Setup temp.

Room temp. control

Cooling

+1.0

(˚C)

–1.0

∗ In the SHRM, the automatic mode cannot be selected.

While a wireless remote controller is used, the mode is notified by “Pi Pi” (two times) receiving sound and the alternate flashing of [TIMER

To clear the alternate flashing, change the mode on the wireless remote controller.

thermo. ON

Cooling thermo. OFF (at the first time only)

Heating thermo. ON

] and [READY ].

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

Wired type

Wireless type

COOL/DRY

18 to 29

18 to 30

HEAT

18 to 29

16 to 30

AUTO∗

18 to 29

17 to 27

∗ For SHRM only

Page 33

No.

Item

Room temp. control (Continued)

Outline of specifications

2) Using the Item code 06, the setup temperature in heating operation can be corrected.

Setup data

Setup temp. correction

0246

+0°C +2°C +4°C +6°C

Setting at shipment

Setup data 2

Remarks

Shift of suction temperature in heating operation

Except while sensor of the remote controller is controlled (Code No. [32], “0001”)

Automatic capacity control

Automatic cooling/heating control

1) Based on the difference between Ta and Ts, the operation capacity is determined by the outdoor unit.

(˚C)

+1 Ts

Ts –1

–1 –2

COOL HEAT

(˚C)

1) The judgment of selecting COOL/HEAT is carried out as shown below. When +1.5 exceeds against Tsh 10 minutes and after thermo.-OFF, heating operation (Thermo. OFF) exchanges to cooling operation.

Description in the parentheses shows an example of cooling ON/OFF.

+1.5

Tsc

Tsh

-1.5

Cooling

(Cooling ON)

(Cooling OFF)

Heating

(˚C)

Ts: Setup temp. Ta: Room temp.

∗ For SHRM only Tsc: Setup temp. in

cooling operation

Tsh: Setup temp. in

heating operation + temp. correction of room temp. control

When –1.5 lowers against Tsc 10 minutes and after thermo. OFF, cooling operation (Thermo. OFF) exchanges to heating operation.

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

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

Page 34

No.

Item

Air speed selection

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 air speed mode [AUTO] is selected, the air speed varies by the difference between Ta and Ts.

<COOL>

Ta (˚C)

+3.0

+2.5

+2.0

+1.5

+1.0

+0.5

Tsc

–0.5

HH <HH>

H+ <HH>

H <HH>

L+ <H+>

L <H>

L <H> L <L+>

< > : Indicate automatic cooling.

A B C

F G

Remarks

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

• Controlling operation in case when thermo of remote

controller works is same as a case when thermo of the body works.

• If the air speed has been changed once, it is not

changed for 3 minutes. However when the air volume is exchanged, the air speed changes.

• When cooling operation has started, select a down-

ward slope for the air speed, that is, the high position.

• If the temperature is just on the difference boundary,

the air speed does not change.

<HEAT>

Ta (˚C)

(–0.5) –1.0

(0) Tsh

(+0.5) +1.0

(+1.0) +2.0

(+1.5) +3.0

(+2.0) +4.0

L <L+>

L+ <H>

H <H+>

H+ <HH>

HH <HH>

< > : Indicate automatic heating.

Body thermostat works. Remote controller thermostat works.

Code No. 32 0000: Body thermo. (Main unit) 0001: Remote controller

thermo.

Value in the parentheses indicates one when thermostat of the remote controller works.

Value without parentheses indicates one when thermostat of the body works.

• If the air speed has been changed once, it is not

changed for 1 minute. However when the air speed exchanged, the air speed changes.

• When heating operation has started, select an upward

slope for the air speed, that is, the high position.

• If the temperature is just on the difference boundary,

the air speed does not change.

• In Tc2 ≥ 60°C, the air speed increases by 1 step.

Tc2: Indoor heat exchanger

sensor temperature

Page 35

No.

Air speed selection

Item

Outline of specifications

Remarks

Selection of high ceiling type CODE No. : [5d]

CODE No.

[5d]

Tap

Standard Type 1 Type 3 Type 6

0000 0001 0003 0006

HEAT COOL HEAT COOL HEAT COOL HEAT COOL

HH HH HH HH

HH HH

H+ H+, H H+, H

H+

HH H

HH H L+ L+

H+ H+ L L

HL+

HL+L

L+ L

LL LL LL LL LL LL LL LL

H+, H H+, H

L+, L L+, L

3) In heating operation, the mode changes to [LL] if thermostat is turned off.

7 Prevention of cold air

discharge

1. In heating operation, the higher temperature of TC2 sensor and TCJ sensor is compared with temperature of TC1 sensor and then the lower temperature is used to set the upper limit of the fan tap.

• When B zone has continued for 6 minutes,

the operation shifts to C zone.

• In defrost time, the control point is set to

+6°C.

(˚C)

A zone: OFF B zone:

Over 26˚C, below 28˚C, ULTRA LOW (LL) C zone:

Over 28˚C, below 30˚C, LOW (L) D zone:

Over 30˚C, below 32˚C, MED (H) E zone: HIGH (HH)

TCJ: Temperature of indoor heat exchanger sensor

• In D and E zones, priority is given to remote controller air speed setup.

n A zone “ ” is displayed.

•I

Page 36

No.

Freeze prevention control (Low temp. release)

Item

Outline of specifications

1. In all cooling operation, the air conditioner operates as de-scribed below based upon temp. detected by TC1, TC2 and TCJ sensors.

• When “J” zone is detected for 5 minutes, the

thermostat is forcedly off.

• In “K” zone, the timer count is interrupted, and held.

• When “

I” zone is detected, the timer is cleared

and the operation returns to the normal operation.

• If “J” zone continues, operation of the indoor fan in

LOW mode continues until it reaches the “

I” zone.

It is reset when the following conditions are satisfied.

Reset conditions

1) TC1 > 12°C and TC2 > 12°C and TCJ > 12°C

2) 20 minutes passed after stop.

(˚C)

P1 Q1

TC1

10°C (5°C)

0°C

TC2, TCJ

–10°C

–14°C

2. In all cooling operation, the air conditioner operates as described below based upon temp. detected by TC2 and TCJ sensors.

• When “M” zone is detected for 45 minutes, the

thermostat is forcedly off.

• In “N” zone, the timer count is interrupted and held.

• When shifting to “M” zone again, the timer count

restarts and continues.

• If “L” zone is detected, the timer is cleared and the

operation returns to normal operation.

Reset conditions

1) TC1 > 12°C and TC2 > 12°C and TCJ > 12°C

2) 20 minutes passed after stop.

Remarks

TC1: Temperature of indoor

heat exchanger sensor

( ) value:

When the power supply is turned on, the Forced thermo becomes OFF if the temperature is less than this indicated temperature.

Recovery control for cooling oil (Refrigerant)

(˚C)

TC2, TCJ

5°C

–2.0°C

The indoor unit which is under STOP/Thermo-OFF status or which operates in [FAN] mode performs the following controls when it received the cooling oil (Refrigerant) recovery signal from the outdoor unit.

1) Opens PMV of the indoor unit with a constant opening degree.

2) Operates the drain pump for approx. 1 minute during recovery control and after finish of control.

∗ In a Model without TC2,

TC2 is not judged.

• Recovery operation is usually performed every 2 hours.

Page 37

No.

Recovery control for heating refrigerant (Oil)

Compensation control for short intermittent operation

Drain pump control

Item

Outline of specifications

The indoor unit which is under STOP/Thermo-OFF status or which operates in [FAN] mode performs the following controls when it received the heating refrigerant (Oil) recovery signal from the outdoor unit.

1) Opens PMV of the indoor unit with a constant opening degree.

2) Detects temperature of TC2 and then closes PMV.

3) Counts No. of recovery controls and operates the indoor fan and the drain pump for approx. 1 minute after finish of recovery control until the control count reaches the specified count.

1) For 3 minutes after start of operation, the operation is forcedly continued even if the unit enters in Thermo-OFF condition.

2) However the thermostat is OFF giving prior to COOL/HEAT selection, READY and protective control.

1) In cooling operation (including DRY operation), this control anytime operates the drain pump.

2) During operation of the drain pump, if the float switch operates, the drain pump continuously operates and a check code is issued.

3) During stop status of the drain pump, if the float switch operates, the thermostat is forcedly off and this control operates the drain pump. After continuous operation of the float switch for approx. 5 minutes, this control stops the operation and a check code is issued.

for operation

Remarks

• The indoor unit which is under thermo-OFF (COOL) status or which operates in [FAN] mode stops the indoor fan and displays [READY

• Recovery operation is usually performed every 1 hour.

Usually the priority is given to 5 minutes at outdoor controller side.

Check Code [P10]

Elimination of retained heat

HA control

Display of filter sign [ (Not provided to the wireless type)

∗ Separately set

type TCB-AX21E2 is prepared.

1) When the unit stopped from [HEAT] operation, the indoor fan operates with [L] for approx. 30 seconds.

1) ON/OFF operation is available by input of HA signal from the remote site when connected to remote controller or the remote ON/OFF interface.

2) HA control outputs ON/OFF status to HA terminal.

3) The I/O specifications of HA conform to JEMA standard.

1) The filter sign is displayed with LC by sending the

]

filter-reset signal to the remote controller when the specified time (150H/2500H) elapsed as a result of integration of the operation time of the indoor fan.

2) The integrated timer is cleared when the filter-reset signal is received from the remote controller. In this time, if the specified time elapsed, the counted time is reset and the LC display is deleted.

Filter time 2500H

When using HA terminal (CN61) for the remote ON/ OFF, a connector sold separately is necessary.

In case of group operation, use the connector to connect HA terminal to either master or follower indoor unit.

[ FILTER] goes on.

Page 38

No.

Display of [READY] [HEAT READY]

Item

Outline of specifications

< READY> Displayed on the remote controller

1) When the following check codes are indicated

• Open phase of power supply wiring [P05] was detected.

• There is an indoor unit that detected the indoor overflow [P10].

• There is an indoor unit that detected the interlock alarm [L30].

2) During Force Thermo-OFF

• [COOL/DRY] operation is unavailable because the other indoor unit operates with [HEAT] mode.

• [HEAT] operation is unavailable because COOL priority (SW11-bit1 of the Outdoor I/F P. C. board is ON) is set and the other indoor unit operates with [COOL/DRY] mode.

3) The above indoor units that cannot operate stay in Thermo-OFF status.

4) The indoor fan stops because the system performs [Recovery operation for heating refrigerant (Oil)].

Remarks

• < READY> display No display for wireless

type remote controller

<HEAT READY> Displayed on the remote controller The indoor fan stops in order to prevent discharge of cool air

when heating operation started or during heating operation. (including the defrost operation during thermo-OFF)

Selection of central control mode

1) Selection of the contents that can be operated by the remote controller at the indoor unit side is possible according to setting at the central controller side.

2) Setting contents

• In case of AI-NET central control

Operation from

AI-NET

central control

[After-push priority]

[Center]

[Operation prohibited]

(¡: Operation possible ×: Operation impossible)

ON/OFF Operation Timer Temp. Air speed Air direction

• In case of wired remote controller type, [Central control] display (Goes on) in the central control mode

• Display flashes when an item of the operation prohibited was changed on the remote controller.

• In case of wireless remote controller type, the display lamp does not change but the contents that can be operated are same in the central control mode.

(∗1) The operation from the wireless remote controller in the central control mode is notified

with the receiving sound, Pi, Pi, Pi, Pi, Pi (5 times).

(∗1) If the operation select modes are different in the central 2 to 4 from those at the central

controller side, the operations Temp. Setting, air volume setting, and air direction setting are inoperable.

• <HEAT READY> display

Operation on RBC-AMT32E

setting selection setting setting setting setting

¡¡¡¡ ¡ ¡

¡¡ ¡

×××× × ×

RBC-AMT32E

[Center controlling]

display

• In case of TCC-LINK central control

Operation from

TCC-LINK

central control

Individual

[Central 1]

[Central 2]

[Central 3]

[Central 4]

(¡: Operation possible ×: Operation impossible)

ON/OFF Operation Timer Temp. Air speed Air direction

setting selection setting setting setting setting

¡¡¡¡ ¡ ¡

××××

¡ ¡

× ×

Operation on RBC-AMT32E

¡ ¡¡ ¡ ¡

¡¡ ¡

¡¡

RBC-AMT32E

[Central control]

display

Page 39

No.

Item

Louver control

Outline of specifications

1) Louver position setup

• When the louver position is changed, the position moves necessarily to downward discharge position once to return to the set position.

• The louver position can be set up in the following operation range.

In cooling/dry operation In heating/fan operation

• In group twin/triple operation, the louver positions can be set up collectively or individually.

In case that HEAT refrigerant recovery control was performed in STOP status, the louver position becomes horizontal when the operation is resumed.

2) Swing setup

• [SWING] is displayed and the following display is repeated.

In all operations

Remarks

The swinging louver moves usually up to the ceiling side from the louver position of the set time.

(Repeats)

• In group operation, the louver positions can be set up collectively or individually.

3) When the unit stopped or the warning was output, the louver is automatically set to full closed position.

4) When PRE-HEAT

(Heating ready) is displayed (Heating operation started or defrost operation is performed), heating thermo is off or self-cleaning is performed, the louver is automatically set to horizontal discharge position.

* The louver which air direction is individually set or the locked

louver closes fully when the unit stops and the louver is automatically set to horizontal discharge position when PREHEAT

(Heating ready) is displayed, heating thermo is off.

<<Louver lock (Louver fix)>>

• For the air direction setup for each discharge port, the louver position can be locked during the normal operation.

• An arbitrary air direction of an arbitrary louver can be registered and set by keeping

UNIT LOUVER

button pushed for

4 seconds or more on the remote controller.

• The louver lock can be set by registering the setup data to Item code (DN) [F1] to [F4] according to the following table.

Item code

Objective louver No.

Setup data

0000: Release (At shipment) 0001: Horizontal discharge position

0005: Downward discharge position

On the remote controller before the wired remote controller (RBC-AMT32E),

UNIT LOUVER

button is not

provided.

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

Page 40

No.

DC motor

Save operation

Item

Outline of specifications

1) When the fan stator, positioning is performed for the starter and the rotor. (Vibrate slightly)

2) DC motor operates according to the command from the indoor controller.

(Note) If the fan rotates by entry of outside air, etc while

the air conditioner stopped, the indoor unit may operate as the fan motor stops.

(Note) If the fan lock was detected, the operation of the

indoor unit stops and the error is displayed.

1) The function [Save operation] is not provided to the Super Modular Multi series models.

Remarks

Check code [P12]

• If pushing [SAVE] button “

” on the remote controller, “No function” is displayed.

Page 41

8. CONFIGURATION OF CONTROL CIRCUIT

8-1. Indoor Unit

8-1-1. Indoor Controller Block Diagram

1. Connection of wired remote controller

Indoor unit

#1 Header unit

Network adaptor (Option)

Network adaptor P.C. board (MCC-1401)

Remote controller

communication circuit

DC5V

Power circuit

Transformer

CPU

Switch setup

PMV

Wired remote controller (Up to 2 units) Schedule timer (in weekly timer mode)

Weekly timer

CN1

EEPROM

TA sensor

TC1 sensor

TC2 sensor

TCJ sensor

Float input

Display

LCD

DC5V

Powe r circuit

LCD

driver

CPU

Follower unit

Function setup

Secondary

Follower unit

Same

as left

Key switch

battery

Display LCD

Display LED

EEPROM

Remote controller

communication circuit

Indoor control P.C. board (MCC-1570)

DC20V

DC5V

DC12V

Remote controller

communication circuit

CPU

DC5V

Driver

Function setup

Key switch

Powe r

circuit

CN2

CPU

A B

Same as left

Louver

motor

Drain pump

Indoor

fan motor

DC 280V

Outside output

Start/Alarm/Ready

Powe r circuit

Thermostat ON

COOL/HEAT/FAN

CPU

Fan motor

control circuit

Max. 8 units are connectable. *1 *1 However in a case that the network adaptor is installed

when 2 remote controllers are connected, maximum 7 units are connectable.

*2 The network adaptor is installed to only one unit. *3 The weekly timer cannot be connected to the simple wired

remote controller.

AC synchronous

signal input circuit

L N U1 U2

Power supply

1Ø220-240V, 50Hz

1Ø220V, 60Hz

BUS

communication

circuit

Indoor/Outdoor communication

U1 U2

Outdoor unit

Power supply

U1 U2

Outdoor

unit

Power supply

U1 U2

Outdoor

unit

Page 42

2. Connection of wireless remote controller kit

Indoor unit

#1 Header unit

Network adaptor (Option)

Network adaptor P.C. board (MCC-1401)

Remote controller

communication circuit

Indoor control P.C. board (MCC-1570)

DC20V

Remote controller

communication circuit

Wireless remote controller kit

Receiving

P.C. board

Remote controller

communication circuit

Follower unit

DC5V

Power circuit

Transformer

CPU

Switch setup

PMV

Louver

motor

Drain pump

Indoor

fan motor

DC 280V

DC5V

DC12V

Outside output

Start/Alarm/Ready

COOL/HEAT/FAN

Powe r

circuit

Driver

Thermostat ON

MCU

Fan motor

control circuit

MCU

communication

AC synchronous

signal input circuit

L N U1 U2

EEPROM

TA sensor

TC1 sensor

TC2 sensor

TCJ sensor

Float input

BUS

circuit

Powe r circuit

DC5V

Buzzer

Receiving

circuit

CPU

Emergent operation

Function

setup SW

Display

LED

Same as left

Powe r supply

Outdoor

U1U2

unit

Same as left

Powe r

supply

Outdoor

U1U2

unit

Power supply

1Ø220-240V, 50Hz

1Ø220V, 60Hz

Outdoor unit

U1 U2

Indoor/Outdoor communication

Max. 8 units are connectable. *1 *1 However in a case that the network adaptor is installed when 2 wireless remote controller kits are connected,

maximum 7 units are connectable. *2 The network adaptor is installed to only

Page 43

3. Connection of both wired remote controller and wireless remote controller kit

Wired remote controller Weekly timer

Indoor unit

#1 Header unit

Network adaptor (Option)

Network adaptor P.C. board (MCC-1401)

Remote controller

communication circuit

DC5V

Power circuit

Transformer

Switch setup

PMV

Louver

motor

Drain

pump

Indoor

fan motor

CPU

DC 280V

Display LCD

EEPROM

Display LED

Indoor control P.C. board (MCC-1570)

DC5V

DC12V

Driver

Outside output

Start/Alarm/Ready

Thermostat ON

COOL/HEAT/FAN

MCU

Fan motor

control circuit

Powe r

circuit

CPU

DC5V

Remote controller

communication circuit

Remote controller

communication circuit

MCU

communication

AC synchronous

signal input circuit

Function setup

Key switch

Powe r

circuit

EEPROM

TA sensor

TC1 sensor

TC2 sensor

TCJ sensor

Float input

BUS

circuit

Display

LCD

CN2

CN1

Remote controller

communication circuit

Powe r circuit

Buzzer

Receiving

circuit

DC5V

CPU

Powe r

circuit

Wireless remote controller kit

DC5V

Secondary

Receiving

P.C. board

Emergent

operation

Function

setup SW

Display

LED

LCD

driver

CPU

battery

Follower unit

Same as left

Power supply

Outdoor

Function setup

Key switch

Follower unit

Same as left

U1U2

Power

supply

unit

Outdoor

U1U2

unit

L N U1 U2

Power supply

1Ø220-240V, 50Hz

1Ø220V, 60Hz

Indoor/Outdoor communication

U1 U2

Outdoor unit

Max. 8 units are connectable. *1 *1 However in a case that the network adaptor is installed when 2 wireless remote controller kits are connected,

maximum 7 units are connectable. *2 The network adaptor is installed to only *3 The weekly timer cannot be connected to the simple wired remote controller.

Page 44

8-2. Indoor Print Circuit board

MCC-1402

Power supply

Optional

power supply

Remote controller

power supply LED

Drain pump output

Remote controller inter-unit cable

Indoor/Outdoor communication

(Also used for communication of the central control system)

Filter/Option error input Input of high ceiling exchangeEEPROM

Microcomputer operation LED

TC1 sensor

TCJ sensor

EXCT

TA sensorFlap

HA (T10)

Fan output

Indoor/Outdoor communication (Spare)

TC2 sensor

Used for

servicing

DISP

CHK

Optional output

DC fan output

PMV output

DC fan return

Float SW

Page 45

8-2-1. Optional Connector Specifications of Indoor P.C. Board

Function

Fan output

—

Option output

Connector

No.

CN32

CN61

CN60

Pin No.



























Specifications

DC12V

Output

ON/OFF input

0V (COM)

Main prohibition input

Operation output

DC12V (COM)

Alarm output

DC12V (COM)

Defrost output

Thermo ON output

COOL output

HEAT output

Remarks

Shipment setup: ON with indoor unit operation and OFF with stop are linked.

* Single operation by FAN button on remote controller is set

up from remote controller (DN=31)

HA ON/OFF input (J01: YES/NO=Pulse (At shipment) / Static input select)

Operation stop of main remote controller is permitted / prohibited by input.

ON during operation (Answerback of HA)

ON during alarm output

ON when outdoor unit is defrosted

ON during Real thermostat ON (Compressor ON)

ON when operation mode is cooling system (COOL, DRY, Cool/Heat Auto cooling)

ON when operation mode is heating system (HEAT, Cool/Heat Auto cooling)

Outside error input

—

CHK operation check

DISP exhibition mode

EXCT demand

CN80

CN20

CN70

CN71

CN72

CN73

Fan output



DC12V (COM)



DC12V (COM)



Outside error input



—

Check mode input





Display mode input





Demand input





—

ON when indoor fan is ON (During use of air cleaner/Interlock cabling)

Generate check code “L30” (for 1 minute continuously) to stop forcedly the operation.

—

Used for indoor operation check. (Outdoor does not communicate with remote controller, and outputs specified operation such as indoor fan “H”, drain pump ON, etc.)

Exhibition mode enables to communicate by indoor unit and remote controller only. (When power has been turned on.) Timer short (Usual)

Indoor unit forced thermostat OFF operation

Page 46

8-3. Functions at test run

ON / OFF

SET

SAVE

n Cooling/Heating test run check

The test run for cooling/heating can be performed from either indoor remote controller or outdoor interface P.C. board.

1. Start/Finish operation of test run

¤ Test run from indoor remote controller

Wired remote controller: Refer to the below item of “Test run” of the wired remote controller. Wireless remote controller: Refer to the next page item of “Test run” of the wireless remote controller.

u In case of wired remote controller

<RBC-AMT32E> <RBC-AMS41E>

1, 5

Procedure

2, 4

TIMER SE

MOD

RESE

WING/FI

NIT LOUVE

1, 5

Operation contents

Push [TEST] button for 4 seconds or more.

[TEST] is displayed at the display part and the mode enters in TEST mode.

Push [ON/OFF] button.

Change the mode from [COOL] to [HEAT] using [MODE] button.

• Do not use [MODE] button for other mode except [COOL]/[HEAT] modes.

• The temperature cannot be adjusted during test run.

• The error detection is performed as usual.

TEMP.

FILTER UP/DN

DAY

PROGRAM

TEST

FLT.RESET

SCHEDULE

TIME SAVE

SET CL

FAN

SWING/FIX

TEST

ON / OFF

MODE

VENT

UNIT

2, 4

LOUVER

(Display on the display part is same to that in Procedure

1 .)

Push [TEST] button to clear the TEST mode.

After test run, push [ON/OFF] button to stop the operation.

([TEST] display in the display part disappears and status becomes the normal stop status.)

Note) The test run returns to the normal operation after 60 minutes.

Page 47

u In case of wireless remote controller

Procedure

Push [ON/OFF] button on the remote controller.

Change the operation mode to [COOL] or [HEAT] using [MODE] button and then select the air speed [ using [FAN].

Test run for cooling operation Test run for heating operation

Operation contents

Set [18°C] using [Temperature set] button. Set [30°C] using [Temperature set] button.

Test run for cooling operation:

ON/OFF → 18°C → 19°C → 18°C → 19°C → 18°C → 19°C → 18°C → (Test run) → ON/OFF

Test run for heating operation:

ON/OFF → 30°C → 29°C → 30°C → 29°C → 30°C → 29°C → 30°C → (Test run) → ON/OFF

Set [19°C] using [Temperature set] button immediately Set [29°C] using [Temperature set] button immediately after confirmation of the receiving sound “Pi”. after confirmation of the receiving sound “Pi”.

Set [18°C] using [Temperature set] button immediately Set [30°C] using [Temperature set] button immediately after confirmation of the receiving sound “Pi”. after confirmation of the receiving sound “Pi”.

Next carry out the procedures 3 → 4 → 3 → 4 .

After approx. 10 seconds, all the indication lamps on the receiving part of the wireless remote controller [ON], [TIMER] and [Ready] flash and start the operation.

Repeat operation of procedure

After the test run, push [ON/OFF] button to stop the operation.

2 and after if the lamps do not flash.

Note) The test run returns to the normal operation after 60 minutes.

Always select [ HIGH] air volume.

2 2

3, 4, 5,

2, 7

Page 48

n Check function for operation of indoor unit (Functions at indoor unit side)

This function is provided to check the operation of the indoor unit singly without communication with the remote controller or the outdoor unit. This function can be used regardless of operation or stop of the system.

However, if using this function for a long time, a trouble of the equipment may be caused. Limit using this function within several minutes.

[How to operate]

1) Short-circuit CHK pin (CN71 on the indoor P.C. board). The operation mode differs according to the indoor unit status in that time.

Normal time: Both float SW and fan motor are normal. Abnormal time: Either one of float SW or fan motor is abnormal.

2) Restricted to the normal time, if short-circuiting DISP pin (CN72 on the indoor P.C. board) in addition to short-circuit of CHK pin (CN71 on the indoor P.C. board), the minimum opening degree (30pls) can be set to the indoor PMV only.

When open DISP pin, the maximum opening degree (1500pls) can be obtained again.

[How to clear]

Open CHK pin. While the system is operating, it stops once but automatically returns to operation after several minutes.

Short-circuit of CHK pin

Fan motor

Indoor PMV (∗)

Louver

Drain pump

Communication

P.C. board LED

Normal time

DISP pin open DISP pin short circuit

(H) (H) Stop

Max. opening degree (1500pls)

Horizontal Horizontal Immediate stop

ON ON ON

All ignored All ignored All ignored

Lights Lights Flashes

Min. opening degree (30pls) Min. opening degree (30pls)

Abnormal time

• To exchange the indoor PMV coil, set the indoor PMV to Max. opening degree.

• For the detailed positions of CHK pin (CN71 on indoor P.C. board) and DISP pin (CN72 on indoor P.C. board), refer to the indoor P.C. board MCC-1402.

Page 49

9. APPLIED CONTROL

SET

9-1. Setup of Selecting Function in Indoor Unit

(Be Sure to Execute Setup by a Wired Remote Controller)

<Procedure> Execute the setup operation while the unit stops.

FILTER RESET

TEMP.

TEST

TIMER SET

TIME

SET

FAN

SAVE

SWING/FIX

ON / OFF

MODE

VENT

UNIT LOUVER

1 Push

The firstly displayed unit No. indicates the header indoor unit address in the group control.

In this time, the fan of the selected indoor unit is turned on.

, CL , and

2 Every pushing

displayed. In this time, the fan of the selected indoor unit only is turned on.

TEST

buttons simultaneously for 4 seconds or more.

UNIT LOUVER

button, the indoor unit numbers in the group control are successively

3 Specify the CODE No. (DN) using the setup temperature and buttons. 4 Select the setup data using the timer time and buttons.

(When selecting the CODE No. (DN) to “33”, change the temperature indication of the unit from “°C” to “°F” on the remote controller.)

5 Push

• To change the selected indoor unit, return to procedure 2 .

• To change the item to be set up, return to procedure 3 .

6 Pushing

button. (OK if display goes on.)

TEST

button returns the status to normal stop status.

Page 50

Table: Function selecting item numbers (DN)

(Items necessary to perform the applied control at the local site are described.)

CODE No.

[DN]

Item

Filter display delay timer

Dirty state of filter

Central control address

Specific indoor unit priority

Heating temp shift

Existence of [AUTO] mode

Cooling only

Type

Description

0000 : None 0001 : 150H 0002 : 2500H 0003 : 5000H 0004 : 10000H

0000 : Standard 0001 : High degree of dirt (Half of standard time)

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

0000 : No priority 0001 : Priority

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

(Up to +6 recommended)

0000 : Provided 0001 : Not provided

(Automatic selection from connected outdoor unit)

0000 : Heat pump 0001 : Cooling only (No display of [AUTO] [HEAT])

0002 : 2-way Air Discharge Cassette

At shipment

0002 : 2500H

0000 : Standard

0099 : Unfixed

0000 : No priority

0002 : +2°C (Floor type 0000: 0°C)

0001 : Not provided

0000 : Heat pump

Depending on model type

Indoor unit capacity

Line address

Indoor unit address

Group address

Louver type (Air direction adjustment)

Temp difference of [AUTO] mode selection COOL → HEAT, HEAT → COOL

Automatic restart of power failure

Selection of option/error input (CN70)

HA terminal (CN61) select

0000 : Unfixed 0001 to 0034

0001 : No.1 unit to 0030 : No.30 unit

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

0000 : Individual 0001 : Header unit of group 0002 : Follower unit of group

0000 : No louver 0001 : Swing only 0002 : (1-way Air Discharge Cassette type, Under Ceiling type) 0003 : (2-way Air Discharge Cassette type) 0004 : (4-way Air Discharge Cassette type)

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

0000 : None 0001 : Restart

0000 : Filter input 0001 : Alarm input (Air washer, etc.) 0002 : None

0000 : Usual 0001 : Leaving-ON prevention control 0002 : Fire alarm input

According to capacity type

0099 : Unfixed

According to type

0003 : 3 deg

(Ts±1.5)

0000 : None

0002 : None

0000 : Usual

(HA terminal)

Ventilating fan control

TA sensor selection

Temperature unit select

0000 : Unavailable 0001 : Available

0000 : Body TA sensor 0001 : Remote controller sensor

0000 : °C (at factory shipment) 0001 : °F

0000 : Unavailable

0000 : Body TA sensor

0000 : °C

Page 51

CODE No.

[DN]

Item

Description

At shipment

High ceiling selection

(Selection of air volume)

Filter sold separately

Timer setup (Wired remote controller)

Type AP007 to AP030 AP036 to AP056

0000

0001 High ceiling

0003 High ceiling

0000 : Standard filter (At shipment) 0001 : Super long life filter

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

Standard

(At shipment)





2.7 m 2.7 m

3.2 m 3.0 m

3.8 m 3.5 m

TYPE

CODE No. [10]

Setup data

∗1 0002

2-way Air Discharge Cassette

∗1 : Initial setting value of EEPROM installed on the service P.C. board

Type

Abbreviated Model name

MMU-AP XXX WH

0000 : Standard

0000 : Available

Indoor unit capacity

CODE No. [11]

Setup data

0001

0003

0005

0007

0009

0011

Model

007

009

012

015

018

024

Setup data

0012

0013

0015

0017

0018

Model

027

030

036

048

056

Page 52

9-2. Applied Control in Indoor Unit

n Remote location ON/OFF control box (TCB-IFCB-4E2)

[Wiring and setup]

• Use the exclusive connector for connection with the indoor control P.C. board.

• In a group control, the system can operate when connecting with any indoor unit (Control P.C. board) in the group. However when taking out the operation/error signal from the other unit, it is necessary to take out from each unit individually.

1. Control items

1) Start/Stop input signal : Operation start/stop in unit

2) Operation signal : Output during normal operation

3) Error signal : Output during alarm (Serial communication error or indoor/outdoor protective device) operation

2. Wiring diagram using remote control interface (TCB-IFCB-4E2)

Input IFCB-4E2 : No voltage ON/OFF serial signal

Output No voltage contact for operation, error display

Contact capacity: Below Max. AC240V 0.5A

Indoor control P.C. board

Start/Stop input

COM (GND)

Remote controller prohibition/clear input

Operation signal output

COM (+12V)

Error signal output

1 2 3 4 5 6

CN61

T10

(YEL)

Remote location ON/OFF control box

(TCB-IFCB-4E2)

1 2 3 4

CN06

1 2 3 4 5 6

CN13

Power supply 220–240V, ~50Hz

220V, ~60Hz

ON/OFF serial signal input

COM

Operation signal output

Error signal output

Page 53

n Ventilating fan control from remote controller

SET

[Function]

• The start/stop operation can be operated from the wired remote controller when air to air heat exchanger or ventilating fan is installed in the system.

• The fan can be operated even if the indoor unit is not operating.

• Use a fan which can receive the no-voltage A contact as an outside input signal.

• In a group control, the units are collectively operated and they can not be individually operated.

1. Operation

Handle a wired remote controller in the following procedure.

∗ Use the wired remote controller during stop of the system. ∗ Be sure to set up the wired remote controller to the header unit. (Same in group control) ∗ In a group control, if the wired remote controller is set up to the header unit, both header and follower

units are simultaneously operable.

1 Push concurrently

The unit No. displayed firstly indicates the header indoor unit address in the group control.

In this time, the fan of the selected indoor unit turns on.

2 Every pushing

UNIT LOUVER

+ CL +

button (button at left side), the indoor unit numbers in group control are

TEST

buttons for 4 seconds or more.

displayed successively.

In this time, the fan of the selected indoor unit only turns on.

3 Using the setup temp or button, specify the CODE No ! . 4 Using the timer time or button, select the setup data. (At shipment:  )

The setup data are as follows:

Setup data

 

5 Push

• To change the selected indoor unit, go to the procedure 2 ).

• To change the item to be set up, go to the procedure 3 ).

6 Pushing

button. (OK if display goes on.)

TEST

returns the status to the usual stop status.

Handling of operation of air to air heat exchanger or ventilating fan

Unavailable (At shipment)

Available

2. Wiring

Relay (DC12V, procured locally) Corresponds to the relay up to one that the rated current of the operation coil is approx. 75mA

CN32

FAN DRIVE

(2P WHI)

Indoor control

P.C. board

Note) Determine the cable length between the indoor control P.C. board and the relay within 2m.

121

Outside control input of fan

To terminal

Compact 4-way Air Discharge Cassette type 4-way Air Discharge Cassette type 2-way Air Discharge Cassette type 1-way Air Discharge Cassette type (2 series) Concealed Duct Standard type Slim Duct type Under Ceiling type High Wall type

Corresponds up to a relay in which rated current of the operation coil is approx. 75mA

Other type models: Correspond up to a relay in which rated current of the

operation coil is approx. 16mA (Does not correspond to a terminal block type relay on the market.)

⎫ ⎬ ⎭

model :

Page 54

n Leaving-ON prevention control

SET

[Function]

• This function controls the indoor units individually. It is connected with cable to the control P.C. board of the indoor unit.

• In a group control, it is connected with cable to the indoor unit (Control P.C. board), and the CODE No. is set to the connected indoor unit.

• It is used when the start operation from outside if unnecessary but the stop operation is necessary.

• Using a card switch box, card lock, etc, the forgotten-OFF of the indoor unit can be protected.

• When inserting a card, start/stop operation from the remote controller is allowed.

• When taking out a card, the system stops if the indoor unit is operating and start/stop operation from the remote controller is forbidden.

1. Control items

1) Outside contact ON : The start/stop operation from the remote controller is allowed. (Status that card is inserted in the card switch box)

2) Outside contact OFF : If the indoor unit is operating, it is stopped forcedly. (Start/Stop prohibited to remote controller) (Status that card is taken out from the card switch box)

* When the card switch box does not perform the above contact operation, convert it using a relay with b

contact.

2. Operation

Handle the wired remote controller switch in the following procedure.

* Use the wired remote controller switch during stop of the system.

1 Push concurrently

+ CL +

TEST

buttons for 4 seconds or more.

2 Using the setup temp or button, specify the CODE No. - . 3 Using the timer time or button, set  to the setup data. 4 Push 5 Push

3. Wiring

n Power peak-cut from indoor unit

When the relay is turned on, a forced thermostat-OFF operation starts.

button.

TEST

button. (The status returns to the usual stop status.)

CN61

T10

(YEL)

Indoor control P.C. board

Note) Determine the cable length between the indoor control P.C. board and the relay within 2m.

121

343

565

Relay (procured locally)

Power supply

Outside contact (Card switch box, etc: Procured locally)

* In the figure, the contact indicates a status that the card is taken out.

• Wiring example

CN73

EXCT

(2P plug: RED)

Indoor control P.C. board

121

Relay (procured locally)

Note) Determine the cable length between the indoor or outdoor control P.C. board and the relay within 2m.

Relay coil signal

Page 55

n Address setup (Manual setting from Wired remote controller)

SET

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

• Set an indoor unit per a remote controller.

• Turn on power supply.

1 Push

+ CL +

TEST

buttons simultaneously

for 4 seconds or more.

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

Outdoor Outdoor

2 (Line address)

Using the temperature setup buttons, set  to the CODE No.

3 Using timer time / buttons,

set the line address.

4 Push

button. (OK when display goes on.)

5 (Indoor unit address)

Using the temperature setup buttons, set ! to the CODE No.

6 Using timer time / buttons,

set 1 to the line address.

7 Push

button. (OK when display goes on.)

8 (Group address)

Using the temperature setup buttons, set " to the CODE No.

9 Using timer time / buttons,

 to Individual,  to

set Header unit and

10 Push

button.

(OK when display goes on.)

11 Push

TEST

button.

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

 to follower unit.

Line address → 1

Indoor unit address → 1

Group address → 1

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

2, 5, 8

END 11

Indoor Indoor Indoor Indoor Indoor

Header unit

Group address Individual : 0000 Header unit : 0001 Follower unit : 0002

TEMP.

TIMER SET

TEST

TIME

SET

FILTER RESET

1 2 2

FAN

SAVE

SWING/FIX

1 3 2

Follower

unit

In case of group control

ON / OFF

MODE

VENT

UNIT LOUVER

3, 6, 9

4, 7, 10

2 1 2

2 2 2

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

Note 1)

When setting the line address from the remote controller, do not use Address 29 and 30. As they are addresses which cannot be set to the outdoor unit, if they are set, the check code [E04] (Indoor/Outdoor

communication circuit error) is issued.

Note 2)

When an address was manually set from the remote controller and the central control over the refrigerant lines is carried out, perform the following setting for the Header unit of each line.

• Set the line address for every line using SW13 and 14 on the interface P.C. board of the Header unit in each line.

• Except the least line address No., turn off SW30-2 on the interface P.C. board of the Header units in the lines connected to the identical central control. (Draw the terminal resistances of indoor/outdoor and central control line wirings together.)

• For each refrigerant line, connect the relay connector between Header unit [U1U2] and [U3U4] terminals.

• After then set the central control address. (For setting of the central control address, refer to the Installation manual for the central remote controller.)

Page 56

n Confirmation of indoor unit No. position

1 2

END

Operation

SET

TIME

TIMER SET

TEST

FILTER RESET

TEMP.

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

1 2 3

END

SET

TIME

TIMER SET

TEST

FILTER RESET

TEMP.

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

1. To know the indoor unit addresses though position of the indoor unit 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 No. 1-1 is displayed on LCD.

(It disappears after several 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 displayed every pushing

ON / OFF

UNIT LOUVER

button if the unit stops.

button (button at left side).

2. To know the position of indoor unit 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, louver, 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 and louvers of all the indoor units in the group control operate.

2 Every pushing

UNIT LOUVER

button (button at left side), the unit numbers in the group control are successively displayed.

• The unit No. displayed at the first time indicates

the header unit address.

• Fan and louver of the selected indoor unit only

operate.

3 Push

TEST

button to finish the procedure.

All the indoor units in the group control stop.

Page 57

n Function selection setup

SET

<Procedure> Perform setting while the air conditioner stops.

1 Push

TEST

+ CL buttons simultaneously for 4 seconds or more.

The first displayed unit No. is the master indoor unit address in the group control.

In this time, fan and louver of the selected indoor unit operate.

Every pushing

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

UNIT LOUVER

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

Using the set temperature

TEMP.

buttons, specify the CODE No. (DN).

Using the timer time

TIME

buttons, select the set data.

5 Push

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

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

button. (OK if indication lights)

Pushing

TEST

button returns the status to the normal stop status.

TEMP.

TEST

TIMER SET

TIME

SET

SWING/FIX

3 6

FILTER RESET

FAN

SAVE

ON / OFF

MODE

VENT

UNIT LOUVER

4 5

1 2 3 4 5 6

END

Page 58

n How to check all the unit No. from an arbitrary wired remote controller

SET

<Procedure> Carry out this procedure during stop of system.

The indoor unit No. and the position in the identical refrigerant piping can be checked.

An outdoor unit is selected, the identical refrigerant piping and the indoor unit No. are displayed one after the other, and then its fan and louver are on.

1 Push the timer time button +

First line 1 and CODE No.

)+ (Address Change) are displayed. (Select outdoor unit.)

TEST

simultaneously for 4 seconds or more.

Select line address using

UNIT LOUVER

SWING/FIX

button.

3 Determine the selected line address using

• The address of the indoor unit connected to the refrigerant piping of the selected outdoor unit is displayed and the fan and the louver are on.

button.

Every pushing

displayed one after the other.

• Only fan and louver of the selected indoor unit start operation.

[To select the other line address]

5 Push

* The indoor address of other line can be continuously checked.

button and the operation returns to Procedure 2.

UNIT LOUVER

button (button at left side), the indoor unit No. in the identical piping is

Push

TEST

button and then the procedure finishes.

TEMP.

TIMER SET

TIME

FILTER

RESET

TEST

SET

ON / OFF

FAN

MODE

SAVE

VENT

SWING/FIX

UNIT LOUVER

1 2 3 4 5 6

END

Page 59

n How to change all indoor addresses from an arbitrary wired remote controller

SET

CLSAS

ON / OFF

UNIT

LOUVER

SET

CLSAS

ON / OFF

UNIT

LOUVER

(It is possible when setting has finished by automatic addresses.)

Contents: The indoor unit addresses in each identical refrigerant piping line can be changed from an

arbitrary wired remote controller.

¤ Enter in address check/change mode and then change the address.

<Procedure> Carry out this procedure during stop of system.

1 Push the timer time button +

First line 1 and CODE No.

)+ (Address Change) are displayed.

TEST

simultaneously for 4 seconds or more.

Select line address using

UNIT LOUVER

SWING/FIX

button.

Push the

• The address of the indoor unit connected to the refrigerant piping of the selected outdoor unit is displayed and the fan and the louver are on.

First the current indoor address is displayed. (Line address is not displayed.)

button.

TIME

button push up/down the indoor

address of the SET DATA.

The set data is changed to a new address.

Push

button to determine the set data.

Every pushing

side), the indoor unit No. in the identical piping is displayed one after the other.

• Only fan and louver of the selected indoor unit start operation.

Repeat the Procedures 4 to 6 to change all the indoor addresses so that they are not duplicated.

UNIT LOUVER

button (button at left

Push

(All the indications of LCD go on.)

button.

8 Push

TEST

finishes.

button and then the procedure

TIMER SE

MOD

TESTRESE

Cancel of line selection

If the UNIT No. is not call up here, the outdoor unit in that line does not exist.

Push CL button to select a line again in the Procedure 2.

Finish

TESTRESE

TIMER SE

WING/FI

MOD

WING/FI

When you want to complete the setting

1 2 3 4 5 6 7 8

END

Page 60

n Function to clear error

1. Clearing method from remote controller

¤ How to clear error of outdoor unit

In the unit of refrigerant line connected by indoor unit of the remote controller to be operated, the error of the outdoor unit currently detected is cleared. (Error of the indoor unit is not cleared.)

The service monitor function of the remote controller is utilized.

1 Push

monitor mode.

2 Push

TEST

buttons simultaneously for 4 seconds or more to change the mode to service

TEMP.

button to set the CODE No. to [FF].

3 The display of A part in the following figure is counted as “# ”

 ”

“ When “

→→

→ “ ”

→→

 ” appear, the error was cleared.

∗ However counting from “# ” is repeated on the display screen.

4 When pushing

→→

→ “ ” with 5-seconds interval.

→→

TEST

button, the status becomes normal.

FILTER RESET

TEMP.

TEST

TIMER SET

TIME

SET

FAN

SAVE

SWING/FIX

ON / OFF

MODE

VENT

UNIT LOUVER

→→

→ “" ”

→→

→ “! ”

→→

→

→→

1 2 3 4

Returns to normal status

¤ How to clear error of indoor unit

The error of indoor unit is cleared by (Only error of the indoor unit connected with remote controller to be operated is cleared.)

ON / OFF

button of the remote controller.

Page 61

n Monitoring function of remote controller switch

1 2 3 4

Returns to normal display

4 1

SET

TIME

TIMER SET

TEST

FILTER RESET

TEMP.

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

When using the remote controller (Model Name: RBC-AMT32E), the following monitoring function can be utilized.

Calling of display

The temperature of each sensor of the remote controller, indoor unit and outdoor unit and the operating status can be checked by calling the service monitor mode from the remote controller.

1 Push

TEST

+ CL buttons simultaneously for 4 seconds or more to call up the service monitor mode.

The service monitor goes on and firstly the temperature of the CODE No.

 is displayed.

2 Push

CODE No. to be monitored. For display code, refer to the following table.

TEMP.

button to change CODE No. to the

3 Push

UNIT LOUVER

button to change to CODE No. to

be monitored. The sensor temperature of indoor unit or

outdoor unit in its refrigerant line and the operating status are monitored.

4 Push

TEST

normal display.

CODE

No.

Room temp.

(Under control) (Note 1)

Room temp. (Remote controller)

Indoor suction temp. (TA)

Indoor coil temp. (TCJ)

Indoor coil temp. (TC2)

Indoor unit dataSystem data

Indoor coil temp. (TC1)

Indoor PMV opening degree

Indoor fan accumulated operation time

Filter sign time

No. of connected indoor units

Total HP of connected indoor units

No. of connected outdoor units

Total HP of connected outdoor units

button to return the status to the

Data name

Unit

°C

pls

unit

Display

form

× 1

× 1/10

× 100

× 1

× 10

CODE

No.

Compressor 1 discharge temp. (Td1)

Compressor 2 discharge temp. (Td2)

High pressure sensor detection pressure (Pd)

Low pressure sensor detection pressure (Ps)

Suction temp. (TS)

Outdoor coil temp. (TE)

Liquid side temp. (TL)

Outside temp. (TO)

Low pressure saturation temp. (TU)

Compressor 1 current (I1)

Compressor 2 current (I2)

Individual outdoor unit data (Note 3, 4)

PMV1 + 2 opening degree

Compressor 1, 2 ON/OFF

Outdoor fan mode

Outdoor unit HP

Data name

Unit

°C

MPa

°C

pls

—

Display

form

× 1

× 100

× 1

× 10

× 1/10

(Note 2)

0 to 31

× 1

(Note 1) In the group connection, only data of the header indoor unit

(Note 2) 01: Only compressor 1 is ON.

(Note 3) For the CODE No., an example of header unit is described.

is displayed.

10: Only compressor 2 is ON. 11: Both compressor 1 and 2 are ON.

(Note 4) Upper girder of CODE No. indicates the outdoor

unit No. 1: Header unit (A)

2: Follower unit (B) 3: Follower unit (C) 4: Follower unit (D)

Page 62

10. TROUBLESHOOTING

10-1. Troubleshooting Summary

1. Before troubleshooting

1) Applied models

S-MMS Multi type models



Indoor unit : MMX-APXXX, Outdoor unit : MMY-MAPXXXXT8X, MMY-MAPXXXHT7X

Super Heat Recovery Multi type models



Indoor unit : MMX-APXXX, Outdoor unit : MMY-MAPXXXFT8X

Mini-S-MMS Multi type models



Indoor unit : MMX-APXXX, Outdoor unit : MCY-MAPXXXHT, MCY-MAPXXXHT2X

2) Required tools / measuring devices

• Screwdrivers (Philips, Minus), spanner, radio pinchers, nipper, push pin for reset switch, etc.

• Tester, thermometer, pressure gauge, etc.

3) Confirmation before check (The following items are not troubles.)

No.

Compressor does not operate.

Indoor fan does not work.

Outdoor fan does not rotate, or fan speed changes.

Indoor fan does not stop.

Start/stop operation on remote

controller is unavailable.

Operation

——

• Is not delayed for 3 minutes? (3 minutes after compressor-OFF)

• Is not thermostat OFF?

• Is not the fan operating or timer?

• Is not the system initially communicating? Heating operation cannot be performed under condition of outside

temperature 21°C or higher. Cooling operation cannot be performed under condition of outside

temperature –5°C or lower.

• Is not the cold draft prevention being controlled in heating operation?

• Is not low cooling operation being controlled?

• Is not a defrost operation being performed?

• Is not after-heat elimination operation being controlled after heating operation?

• Is not auxiliary unit or remote control being operated?

• Is connecting wire of indoor unit or remote controller correct?

Check items

2. Troubleshooting procedure

When a trouble occurred, advance the check operation in the following procedure.

Trouble

[E28] error

Check the check display

on the interface P.C. board

of the header unit.

Check the check display

on the interface P.C. board

of the corresponding follower unit.

Other error

Check position

or part in which

a trouble occurred.

NOTE

While a check operation is performed, a malfunction of the microprocessor may be caused due to condition of the power supply or the external noise.

If there is any noise source, change wires of the remote controller and signal wires to shield wires.

Page 63

10-2. How to check

On the remote controller (Remote controller, Central control remote controller) and on the interface P.C. board of the outdoor unit, LCD display part (Remote controller) or 7-segment display part (on outdoor interface P.C. board) is provided in order to display the operation status.

When a trouble occurred, the method to judge the trouble or defective position of the air conditioner by this self-diagnosis function is shown below.

The following table shows the list of each check code that each device detects. Check the check contents in the following table according to position to be checked.

• Check from the indoor remote controller or TCC-LINK central controller: Refer to “Display on remote controller & TCC-LINK central controller” in the following table.

• Check from outdoor unit: Refer to “Display of outdoor segment” in the following table.

• Check from indoor unit of wireless remote controller: Refer to Sensor lamp display” in the following table.

Check code display list (Indoor unit)

[Indoor unit detects error.]

Check code display

TCC-LINK central

& remote controller

E03

E04

E08

E10

E18

F01

F02

F03

F10

F11

F29

L03

L07

L08

L09

L20

L30

P01

P10

P12

P31

Outdoor 7-segment

Auxiliary code

——

E08 Duplicated indoor unit No.

——

L08 —

——

L30 Detected indoor unit No.

——

P10 Detected indoor unit No.

——

Operation

¥ ll

¥ ll ¥ ll

¥ ll ¥¥l

¥¥l ¥¥l ¥¥l ¥¥l ¥¥l ¥ l ¥ ¥ l ¥ ¥ l ¥ ¥ l ¥ ¥ ¥

l ¥¥ l ¥¥ l ¥¥

¥ l ¥

Sensor lamp display

Block display (∗)

Timer

Ready

Main defective position

Flash

Regular communication error between indoor and remote controller

Regular communication error between indoor and outdoor

Duplicated indoor address

Communication error between indoor MCU

Regular communication error between header and follower in indoor unit

Indoor heat exchanger temp. sensor (TCJ) error

Indoor heat exchanger temp. sensor (TC2) error

Indoor heat exchanger temp. sensor (TC1) error

Room tem. Sensor (TA) error

Discharge air temp. sensor (TF) error.

Indoor or other P.C. board error

Duplicated setting of header in indoor group

There is group cable in individual indoor unit.

Indoor group address is unset.

Indoor capacity is unset.

Duplicated central control system address

External error was input in indoor (Interlock).

Indoor AC fan error

Indoor overflow was detected.

Indoor DC fan error

Other indoor unit error

(∗) ¡: Goes on, ¥: Flashes, l: Goes off

A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

Description

No communication from remote controller and network adapter (No central control system communication also)

No communication from outdoor unit

An address same to self address was detected.

Communication error between MCU of main motor microprocessors

Regular communication between header and follower units in indoor unit was impossible.

Open/short of heat exchanger temp. sensor (TCJ) was detected.

Open/short of heat exchanger temp. sensor (TC2) was detected.

Open/short of heat exchanger temp. sensor (TC1) was detected.

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

Open/short of discharge air temp. sensor was detected.

Indoor EEPROM error (Other error may be detected.)

There were multiple header units in a group.

There is even an indoor unit connected to group in individual indoor unit.

Indoor group address is unset. (Detected also at outdoor unit side)

Capacity of indoor unit is unset.

Setting of central control system address is duplicated.

System abnormally stopped by input of external error (CN80).

Error of indoor AC can was detected. (Fan motor thermal relay operation)

Float switch operated.

Error (Over-current, lock, etc.) of indoor DC fan was detected.

Group follower unit cannot be operated by [E03/L03/L07/L08] alarm of header unit.

Note) The check code display may be different according to the detected device even same error contents such as communication error.

Page 64

[Remote controller detects error.]

Check code display

Remote controller

E01

E02

E09

Outdoor 7-segment

Auxiliary code

——

[Central controller detects error.]

Check code display

TCC-LINK central

C05

C06

—

C12

P30

Outdoor 7-segment

Auxiliary code

——

Sensor lamp display

Block display (∗)

Operation

Timer

Ready

¥ ll ¥ ll ¥ ll

Sensor lamp display

Block display (∗)

Operation

Timer

Ready

Is not displayed

(In shared use

of remote controller)

—

According to unit with alarm

(Abovementioned)

(∗) ¡: Goes on, ¥: Flashes, l: Goes off

Main defective position

Flash

No remote controller header unit, remote controller communication (receive) error

Remote controller communication (send) error

Duplicated remote controller header

Main defective position

Flash

Central control system communication (send) error

Central control system communication (receive) error

There are multiple network adapters.

Batched alarm of interface for general-purpose equipment control

Group follower unit error

A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

Description

When signal cannot be received from indoor unit, when header of remote controller was not set (including 2 remote controllers)

When signal cannot be sent to indoor unit

In 2-remote controller control, both remote controllers were set to header. (Indoor header stops with alarm and follower unit continues operation.)

Description

When signal of central control system cannot be sent, there are same multiple central devices (AI-NET)

When signal of central control system cannot be received

There were multiple network adapters (AI-NET) on remote controller communication line.

Error of equipment connected to control interface of the general-purpose unit exclusive to TCC-LINK/AI-NET

Group follower unit error (For remote controller, [

] details is displayed together with unit No.)

∗∗∗

Note) The check code display may be different according to the detected device even same error contents such as communication error.

Page 65

Check code display list (Outdoor unit)

[SMMS-i interface detects error: Main example]

Outdoor 7-segment

No. of indoor units which received signal

E06

normally

E07 —

E08 Duplicated indoor unit number

01: Indoor/Outdoor communication

E12

02: Communication between Outdoor units

E15 —

00: Capacity over

E16

01 ~ : No. of connected units 00: No center outdoor unit

E19

02: 2 or more center outdoor units 01: Connected to outdoor of other line

E20

02: Connected to indoor of other line 00: Duplicated header units

E21

02: No header unit

E22 —

E23 —

E25 —

E26 Receive error of outdoor address

E28 Detected outdoor unit number

A3-IPDU

123

¡¡

E31

¡¡

¡¡¡

¡¡

F04 — F05 —

01: TE1

F06

02: TE2 F07 — F08 — F11 — F12 — F15 — F16 — F22 — F23 —

F24 —

F31 —

Check code display

Auxiliary code

FAN

IPDU

¡¡

Error position.

A3-IPDU

123

FAN

IPDU

¡¡

¡¡ ¡

¡¡

¡¡¡

¡¡ ¡

¡¡¡ ¡

mark:

TCC-LINK central & remote controllers

E06

(E04)

(E08)

E12

E15

E16

E19

E20

E21

E22

E23

E25

E26

E28

E31

F04 F05

F06

F07 F08 F11 F12 F15 F16 F22 F23

F24

F31

Sensor lamp display

Block display

Operation

Timer Ready Flash

ll¥ ll¥

¥ ll ¥ ll

ll¥ ll¥ ll¥ ll¥

ll¥ ll

ll¥ ll¥

¥¥¡ ¥¥¡

¥¥¡

¥¥¡ ¥¥¡ ¥¥¡ ¥¥¡ ¥¥¡

¥¥¡ ¥¥¡

—

(∗) ¡: Goes on, ¥: Flashes, l: Goes off

A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

Main defective position

Decrease of quantity of indoor units

Indoor/Outdoor communication circuit error

Duplicated indoor address

Automatic address start error

There is none during auto addressing. No. of connected indoor units:

Over capacity No. of center outdoor units error

Connected to other line during automatic addressing

Header heat unit quantity error

Decrease of heat unit quantity Send error communication between

outdoor units Duplicated terminal outdoor address setting Decrease of connected outdoor units

Terminal outdoor error

IPDU communication error

Outdoor discharge temp. sensor (TD1) error

Outdoor discharge temp. sensor (TD2) error

Outdoor heat exchanger temp. sensor

(TE1, TE2) error

Outdoor liquid temp. sensor (TL) error Outdoor outer air temp. sensor (TO) error

Outdoor suction temp. sensor (TS1) error

Outdoor temp. sensor (TE1, TL) miswiring

Outdoor pressure sensor (Pd, Ps) miswiring

A A

Outdoor discharge temp. sensor (TD3) error Low pressure (Ps) sensor error

High pressure (Pd) sensor error

Outdoor EEPROM error

—

Description

No communication from indoor unit (Decrease of connected indoor units)

Signal cannot be sent to indoor unit. (→There is no communication from outdoor unit.)

There are multiple indoor units having the same address. (Detected also at indoor unit side)

Automatic indoor address operation while setting automatic address of other system Outdoor automatic address operation while setting automatic indoor address

There is no signal receiving from outdoor unit during automatic addressing. Total capacity of indoor units exceeded (total capacity of outdoor units × 135%)

There is no center outdoor unit or there are 2 or more outdoor units in 1 line.

Indoor unit of other line was detected during automatic address is been setting.

There is no header heat unit in the system, or there are multiple header units.

No communication from heat unit (Decrease of connected heat units) Sending to other outdoor is unavailable.

Manually set outdoor address was duplicated. No communication from terminal outdoor unit

(Decrease of connected terminal outdoor units) Center outdoor unit detected terminal outdoor unit error.

(For terminal outdoor unit, details are displayed.)

No communication of each IPDU (P.C. board) in inverter box

Open/Short of outdoor discharge temp. sensor (TD1) was detected. Open/Short of outdoor discharge temp. sensor (TD2) was detected. Open/Short of heat exchanger temp. sensor (TE1, TE2) was detected.

Open/Short of outdoor liquid temp. sensor (TL) was detected. Open/Short of outer air temp. sensor (TO) was detected.

Open/Short of outdoor suction temp. sensor (TS1) was detected. Miswiring by temp. sensor (TE1, TL) was detected. Miswiring by outdoor pressure sensor (Pd, Ps) was detected. Open/Short of outdoor discharge temp. sensor (TD3) was detected. Output voltage of low pressure (Ps) sensor detected 0. Output voltage of high pressure (Pd) sensor detected 0 or error value was

detected during stop of compressor. Outdoor EEPROM error

(Center unit stops alarm and terminal unit continues operation.).

—

Page 66

Outdoor 7-segment

H05 —

H15 —

H25 —

H06 — H07 —

01: TK1 sensor error

02: TK2 sensor error

H08 03: TK3 sensor error

04: TK4 sensor error

05: TK5 sensor error

01: TK1 Oil circuit system error

02: TK2 Oil circuit system error

H16 03: TK3 Oil circuit system error

04: TK4 Oil circuit system error

05: TK5 Oil circuit system error

L04 —

No. of preceded indoor units L06

([L05/L06] by individual display)

L08 —

L10 — L17 — L18 — L26 No. of connected heat units

L27 No. of connected heat units

L28 —

A3-IPDU

123

¡¡

L29

¡¡

¡¡¡

¡¡

L30 Detection of indoor unit number

P03 —

00: Open phase shortage detection

01: Compressor 1 side P05

02: Compressor 2 side

03: Compressor 3 side

Check code display

Auxiliary code

FAN

IPDU

¡¡

Error position.

A3-IPDU

123

¡¡ ¡

¡¡¡

¡¡¡ ¡

mark:

FAN

IPDU

¡¡

¡¡ ¡

TCC-LINK central & remote controllers

H05

H15

H25

H06 H07

H08

H16

L04

L05

L06

L08

L10 L17 L18 L26

L27

L28

L29

(L30)

P03

P05

Sensor lamp display

Block display

Operation

Timer Ready Flash

l ¥ l l ¥ l l ¥ l

l l

¥¡¥ ¥ l ¥ ¥ l ¥ ¥ l ¥

¥¡¥ ¥¡¥ ¥¡¥ ¥¡¥

¥¡¥ ¥¡¥

¥¡¥

¥¡¥ ¥

¥ l ¥

l l

(∗) ¡: Goes on, ¥: Flashes, l: Goes off

Main defective position

Outdoor discharge temp. sensor (TD1) miswiring

Outdoor discharge temp. sensor (TD2) miswiring

Outdoor discharge temp. sensor (TD3) miswiring

Low pressure protective operation Protection for oil level drop

Oil level detection temp. sensor (TK1 to 5) error

Detection circuit error

Duplicated outdoor system address

Duplicated priority indoor units

(Displayed in priority indoor unit) Duplicated priority indoor units

(Displayed except priority indoor unit) Unset indoor group address

Unset outdoor unit capacity

Disagreed error of outdoor model

Refrigerant change unit system error

No. of connected heat unit over No. of connected heat unit error

No. of connected outdoor units over

IPDU quantity error

Outside error input in indoor (Interlock)

Outdoor unit discharge (TD1) temp. error Open phase shortage: Power failure error

Inverter DC voltage (Vdc) error

A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

Description

Miswiring or mismounting of outdoor discharge temp. sensor (TD1) or coming-out of TD1 sensor was detected.

Miswiring or mismounting of outdoor discharge temp. sensor (TD2) or coming-out of TD2 sensor was detected.

Miswiring or mismounting of outdoor discharge temp. sensor (TD3) or coming-out of TD3 sensor was detected.

Protection by low pressure (Ps) sensor was detected. Protection detection by temp. sensor (TK1 to 5) for oil level detection.

Open/Short of temp. sensor (TK1 to 5) for oil level detection was detected.

After starting compressor operation, temperature change of temp. sensor (TK1 to 5) for oil level detection was not detected.

Duplicated setting of system address to outdoor units of different refrigerant piping system

Duplicated priority indoor units (For priority indoor unit)

Duplicated priority indoor units (For indoor units without priority)

There is indoor unit which indoor group address was not set (Detected also at indoor unit side)

Capacity of outdoor unit is not set. (Exchange service P.C. board.) Former model of outdoor unit (Before 3 series) was connected. COOL/HEAT cycle error by mispiping, etc was detected. There are 3 or more connected heat units. Heat unit was not connected, or combination of No. of outdoor units with No. of

heat units defective. No. of connected outdoor units exceeded 4 units

No. of IPDU (P.C. board) in inverter box is few.

There is indoor unit which abnormally stops by outer error input in 1 system. (← Indoor unit detected.)

High temp. error was detected at outdoor discharge temp. sensor (TD1). When power supply was turned on, open phase shortage was detected.

Over current/Current shortage was detected at inverter DC voltage.

Page 67

(∗) ¡: Goes on, ¥: Flashes, l: Goes off

A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

Check code display

Outdoor 7-segment

Auxiliary code

01: Compressor 1 side P07 02: Compressor 2 side

03: Compressor 3 side

P09 Detection of heat unit number

P10 Detection of indoor unit number

P13 —

01: TS condition P15

02: TD condition

P17 —

P18 —

P19 Detection of outdoor unit number

P20 —

P24 Detection of heat unit number

TCC-LINK central &

remote controllers

P07

(P09)

(P10)

P13

P15

P17

P18

P19

P20

P24

Sensor lamp display

Block display

Operation

Timer Ready Flash

l ¥¥

¥¥

¥ l ¥

¥ ¥ ¥ ¥

¥ l ¥

l l l l

¥ ¥ ¥ ¥

Main defective position

Heat sink overheat error

Heat unit water-shortage error

There is indoor unit which overflow was detected.

Outdoor liquid back detection error

Gas leak detection

Outdoor discharge (TD2) temp. error

Outdoor discharge (TD3) temp. error

4-way valve invert error

High pressure protection operation

Heat unit error (Main code)

Description

High temp. error was detected in outdoor IGBT built-in temp. sensor (TH).

There is heat unit which was been detected water-shortage in 1 system. (← Heat unit detected.)

There is abnormally stopped indoor unit which was been detected water-overflow in 1 system. (← Indoor unit detected.)

Liquid back operation was judged from refrigerant cycle status.

Outdoor suction temp. sensor (TS1) continuously and repeatedly detected high temperature over standard value.

High temp. error was detected in outdoor discharge temp. sensor (TD2).

High temp. error was detected in outdoor discharge temp. sensor (TD3).

Refrigerant cycle error was detected in heating operation.

High pressure (Pd) sensor detected pressure over standard value.

Heat unit detected error (Heat remote controller displays detailed check code together with model number.)

Page 68

Check code display list (Outdoor unit)

[SMMS-i unit IPDU detects error: Main example]

Check code display

Outdoor 7-segment

Auxiliary code

01: Compressor 1 side F13 02: Compressor 2 side

03: Compressor 3 side

01: Compressor 1 side

H01 02: Compressor 2 side

03: Compressor 3 side

01: Compressor 1 side

H02 02: Compressor 2 side

03: Compressor 3 side

01: Compressor 1 side

H03 02: Compressor 2 side

03: Compressor 3 side

01: Compressor 1 side P04 02: Compressor 2 side

03: Compressor 3 side

01: Compressor 1 side P07 02: Compressor 2 side

03: Compressor 3 side

0∗: IGBT circuit

1∗: Position detection circuit error

3∗: Motor lock error

4∗: Motor current detection P22 C∗: TH sensor error

D∗: TH sensor error

E∗: Inverter DC voltage error (Outdoor fan)

Note) In position ∗, 0 to F is displayed,

but ignore it.

01: Compressor 1 side P26 02: Compressor 2 side

03: Compressor 3 side

01: Compressor 1 side P29 02: Compressor 2 side

03: Compressor 3 side

TCC-LINK central & remote controllers

F13

H01

H02

H03

P04

P07

P22

P26

P29

Sensor lamp display

Block display

Operation

Timer Ready Flash

¥¥¡

(∗) ¡: Goes on, ¥: Flashes, l: Goes off

A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

Main defective position

Outdoor IGBT built-in temp. sensor (TH) error

Compressor break down

Compressor error (Lock)

Current detection circuit error

High pressure SW system operation

Heat sink overheat error

IPDU for outdoor fan error

G-Tr (IGBT) short-circuit protection error

Compressor position detection circuit system error

Description

Open/Short of outdoor unit IGBT built-in temp. sensor (TH) was detected.

Inverter current (Idc) detection circuit detected over-current.

Compressor lock was detected.

Abnormal current was detected during stop of compressor.

High pressure SW operated.

High temp. error was detected in outdoor IGBT built-in temp. sensor (TH).

IPDU for outdoor fan detected each error.

Short-circuit protective operation (Instantaneous over-current) of compressor motor driving circuit element operated.

Position detection error of compressor motor was detected.

Note) The above check codes are the representative examples and they differ according to the combined outdoor units (Cooling/Heating flex, etc.).

For details, refer to the Service Manual for the corresponding outdoor unit.

Page 69

10-3. Troubleshooting by Check Display on Remote Controller

SET

CLSAS

ON / OFF

UNIT

LOUVER

SET

n In case of wired remote controller (RBC-AMT32E)

1. Confirmation and check

When an error occurred on the air conditioner, the check code and the indoor unit No. are displayed on the display section of the remote controller.

The check code is displayed while the air conditioner operates.

If the display disappeared, operate the air conditioner and check the error based upon the following “Confirmation of error history”.

Check code Indoor unit No. in which 

an error occurred

2. Confirmation of error history

When an error occurred on the air conditioner, the error history can be confirmed with the following procedure. (Up to 4 error histories are stored in memory.)

This history can be confirmed from either operating status or stop status.

Procedure

and

TEST

buttons simultaneously for 4 seconds or more, the below display appears.

When pushing

If [

Service Check] is displayed, the mode enters in the error history mode.

• [01: Error history order] is displayed in CODE No. window.

• [Check Code] is displayed in check code window.

• [Indoor unit address with error] is displayed in UNIT No.

Every pushing temp. set / buttons, the error histories stored in the memory are displayed in order. The numbers in CODE No. indicates CODE No. [01] (Latest) to [04] (Oldest).

CAUTION

Do not push CL button because all the error histories of the indoor unit will be deleted.

Description

TIMER SE

TESTRESE

WING/FI

MOD

TEST

button to return to the usual display.

After confirmation, push

How to read the check monitor display

<7-segment display>

89AbCdEFHJLP76543210

Page 70

n In case of central remote controller (TCB-SC642TLE2)

ZONE

ALL

ZONE

GROUP

1234

SET DATA

SETTING

R.C.

SELECT ZONE

UNIT No.

No.

TEST

SET

1. Confirmation and check

When a trouble occurred on the air conditioner, the check code and the indoor unit No. are displayed on the display section of the remote controller.

The check code is displayed while the air conditioner operates.

If the display disappeared, operate the air conditioner and check the error based upon the following “Confirmation of error history”.

GROUP

CODE

No.

Unit No display Alarm display

UNIT No.

Alternate flashing display

R.C No.

2. Confirmation of error history

When a trouble occurred on the air conditioner, the error history can be confirmed with the following procedure. (Up to 4 error histories are stored in memory.)

This history can be confirmed from either operating or stop.

1) Push and

2) SERVICE CHECK goes on and CODE No. 01 goes on.

3) When selecting (flash) the group number if there is the alarm history, the UNIT number and the latest alarm history are displayed alternately.

* In this time, the temperature cannot be set up.

4) To confirm the alarm history other than the latest one, push temp. set / to select CODE No. (01 to 04).

5) To confirm the alarm in the other group, push Do not push CL button because all the alarm histories of the currently selected group are deleted.

6) To finish the service check, push button.

buttons in succession for 4 seconds or more.

SET

ZONE

and

GROUP

to select the group number

Unit No display Alarm display

UNIT No.

Alternate flashing display

R.C No.

Page 71

n Indoor unit display part (Receiving unit) (Wireless type)

When specifying the check code, check 7-segment display on the center unit.

For the check code which is not displayed on the outdoor 7-segment, confirm it in Section “10-2 How to Check / Check code display list (Indoor unit)”.

: Goes off, : Goes on, : Flash (0.5 second)

Lamp indication

Operation

No indication at all

Operation

Flash

Operation

Alternate flash

Timer Ready

Flash

Timer Ready

Alternate flash

Timer Ready

Check code

—

E01

E02

E03

E08

E09

E10

E12

E18

E04

E06

E07

E15

E16

E19

E20

E23

E25

E26

E28

E31

P01

P10

P12

P13

P03

P04

P05

P07

P15

P17

P18

P19

P20

P22

P26

P29

P31

Cause of trouble occurrence

Power supply OFF or miswiring between receiving unit and indoor unit

Receiving error

Sending error

Communication interruption

Duplicated indoor unit No. (Address)

Duplicated header units of remote controller

Communication error between MCU on indoor unit P.C. board

Automatic address start error

Wire connection error between indoor units, indoor power supply OFF

Miswiring or wire connection error between indoor unit and outdoor unit (Communication interruption between indoor and outdoor units)

Communication (receiving) error between indoor and outdoor units, decrease of No. of connected indoor units

Communication (sending) error between indoor and outdoor units

No indoor unit during setting of automatic address

No. of connected indoor units, capacity over

Error of No. of header unit

Disagreement of refrigerant pipe communication during setting of automatic address

Communication (sending) error between outdoor units

Duplicated setting of follower unit address

Communication (receiving) error between outdoor units, decrease of No. of connected outdoor units

Follower unit error

IPDU communication error

Indoor fan error

Indoor overflow error

Indoor fan error

Outdoor unit liquid back detection error

Outdoor unit discharge temp. (TD1) error

Outdoor unit high pressure switch operation

Outdoor unit inverter DC voltage (Vdc) error was detected, negative phase error was detected

Outdoor unit heat sink overheat error: Heat radiation error of electric part (IGBT) in outdoor unit

Gas leak was detected: Short of refrigerant charge amount

Outdoor unit discharge temp. (TD2) error

Outdoor unit discharge temp. (TD3) error

Outdoor unit 4-way valve inverse error

High pressure protection error

Outdoor unit DC fan error

Outdoor unit G-Tr short-circuit error

Compressor position detection circuit error

Other indoor unit stopped due to error in the group.

⎫

Receiving unit

⎬ ⎭

⎫ ⎪

Miswiring or wire connection error

⎬

between receiving unit and indoor unit

⎪ ⎭

⎫ ⎬

Setup error

⎭

Page 72

Lamp indication

Operation

Alternate flash

Operation

Alternate flash

Operation

Timer Ready

Check code

F01

F02

F03

F10

F11

F04

F05

F06

F07

F08

F12

F13

F15

F16

F22

F23

F24

Cause of trouble occurrence

Heat exchanger sensor (TCJ) error

Heat exchanger sensor (TC2) error

Heat exchanger sensor (TC1) error Temp. sensor error in indoor unit

Room temp. sensor (TA) error

Discharge air temp.sensor (TF) error

Discharge temp. sensor (TD1) error

Discharge temp. sensor (TD2) error

Heat exchanger sensor (TE1, TE2) error

Liquid temp. sensor (TL) error Outdoor unit temp. sensor error

Outside temp. sensor (TO) error

Suction temp. sensor (TS1) error

Heat sink sensor (TH) error

Misconnection of heat exchanger sensor (TE) with liquid temp. sensor (TL) → Miswiring of temp. sensor in outdoor unit or miss-mounting

Miswiring between high pressure sensor (Pd) and low pressure sensor (Ps) → Misconnection of pressure sensor in outdoor unit

Discharge temp. sensor (TD3) error

Low pressure sensor (Ps) error

High pressure sensor (Pd) error

⎫ ⎪ ⎪ ⎪ ⎬ ⎪ ⎪ ⎪ ⎭

⎫ ⎪ ⎪ ⎪ ⎪ ⎪ ⎬ ⎪ ⎪ ⎪ ⎪ ⎪ ⎭

⎫ ⎬

Pressure sensor error in outdoor unit

⎭

Simultaneous flash

Operation

Timer Ready

Flash

Timer Ready

Simultaneous flash

Timer Ready

Simultaneous flash

Timer Ready

F29

H01

H02

H03

H04

H05

H06

H07

H08

H15

H16

H25

L03

L05

L06

L07

L08

L09

L04

L10

L17

L18

L20

L28

L29

L30

Indoor unit EEPROM error

Compressor break-down

Compressor lock Outdoor unit compressor system error

Current detection circuit error

Compressor 1 case thermo operation

Miswiring or mismounting of outdoor discharge temp. sensor (TD1) or coming-off of TD1 sensor

Low pressure (Ps) drop error

Oil face drop detection error

Oil face detection circuit system temp. sensor (TK1, TK2, TK3, TK4, TK5) error

Miswiring or mismounting of outdoor discharge temp. sensor (TD2) or coming-off of TD2 sensor

Oil face detection circuit system error: Outdoor unit TK1, TK2, TK3, TK4 circuit system error

Miswiring or mismounting of outdoor discharge temp. sensor (TD3) or coming-off of TD3 sensor

Duplicated header units in indoor unit

Duplicated priority indoor unit (Displayed in the room with priority)

Duplicated priority indoor unit (Displayed in a room except one with priority)

Group cable was connected to individual indoor unit.

Indoor group address was unset.

Indoor capacity was unset.

Duplicated setting of outdoor line address

Outdoor capacity was unset.

Disagreement error of outdoor unit type

Flow selector unit error

Duplicated address of central control system

No. of connected outdoor units over

Defective No. of IPDU

Indoor unit outside interlock error

⎫ ⎪ ⎬ ⎪ ⎭

⎫

Protections stop of outdoor unit

⎬ ⎭

Simultaneous flash

F31

Outdoor unit EEPROM error

Page 73

n Others (Except check code)

Lamp indication

Operation

Simultaneous flash

Operation

Timer Ready

Alternate flash

Check code

—

Cause of trouble occurrence

During test run

COOL/HEAT disagreement (Automatic cooling/heating setup to automatic cooling/heating unavailable model, heating setup to cooling only model)

Page 74

10-4. Check Code and Check Position Displayed on the Remote Controller and Outdoor Unit

(7-Segment Display of Interface)

Wired

remote

controller

E01

E02

E03

E04

E06

—

E08

E09

E10

E12

Check code

Outdoor 7-segment display

Check code Auxiliary code

——

E06 No. of indoor units

E07 —

E08 Duplicated indoor

——

E12 01: Indoor/outdoor

which received signal normally

addresses

communication Between outdoors

02:

communication

Detected

position

Remote

controller

Remote

controller

Indoor

unit

Indoor

unit

I/F

Indoor

I/F

Remote

controller

Indoor

unit

I/F

Check code name

Communication error between indoor and remote controller

(Detected at remote controller side)

Remote controller sending error

Communication error between indoor and remote controller (Detected at indoor side)

Indoor/outdoor communication circuit error (Detected at indoor side)

Decreased number of indoor units

Indoor/outdoor communication circuit error (Detected at outdoor side)

Duplicated indoor addresses

Duplicated master remote controllers

Communication error between indoor P.C. board assembly

Automatic address start error

Status

Corresponding unit only stops.

All stop

Corresponding unit only stops.

All stop

Error detection condition

Communication interrupted between indoor P.C. board and remote controller.

Signal could not be sent from remote controller to indoor unit.

No communication from remote controller (including wireless) and communication adapter.

Indoor unit does not receive communication from outdoor unit.

When signal is not sent for a certain period from the indoor unit which has been used to send signals.

Transmission from outdoor to indoor cannot continue for 30 seconds.

Multiple indoor unit address setup are duplicated.

In 2-remote controller control (including wireless), both are setup as master (Header indoor unit stops and other indoor unit is operating.)

Communication was not succeeded after power was supplied or during communication.

•

When indoor automatic address started, other refrigerant circuit system was setting automatic address.

• When outdoor automatic address started, indoor automatic address was executed.

Check item (position)

• Check remote controller inter-unit cable (A/B).

• Check disconnection, connector contact error.

• Check indoor power supply.

• Check indoor P.C. board error.

• Check remote controller address setup. (When two remote controllers operate)

• Check remote controller P.C. board.

• Check the communication wire of remote controller: Exchange remote controller.

• Check remote controller and communication adapter wiring.

• Check power-ON order of indoor/outdoor.

• Check indoor address setup.

• Check inter-unit cabling between indoor and outdoor.

• Check outdoor end terminal resistance setup (SW30-2).

• Check the power supply of indoor unit. (Power-ON)

• Check connection of communication line between indoor and outdoor.

• Check connector connection for communication in indoor P.C. board.

• Check connector connection for communication in outdoor P.C. board.

• Check indoor P.C. board failure.

• Check outdoor P.C. board (I/F) failure.

• Check outdoor terminator resistor setup (SW30-2).

• Check the communication connection between indoor and outdoor.

• Check indoor address.

• Check the change of remote controller connection (Group / individual) after setup of indoor address.

• Check remote controller setup.

• Check remote controller P.C. board.

• Indoor P.C. board failure

• Setup the address again after disconnecting communication connection with other refrigerant circuit system.

Page 75

Check code

Wired

remote

controller

Check code Auxiliary code

E15

E16

E18

E19

E20

E23

E25

E26

E28

When pushing SW04 for 1 second or more under condition that [E28] is displayed on 7-segment display of outdoor header unit, the fan of outdoor unit which stopped abnormally starts rotating. If pushing SW04 and SW05 simultaneously, the fan of normal outdoor unit operates. When pushing SW05 singly, the operation of fan is cleared.

Outdoor 7-segment display

E15 —

E16 00: Capacity over

——

E19 00: No header unit

E20 01: Connection of outdoor of other line

E23 —

E25 —

E26 No. of normally received outdoor units

E28 No. of detected outdoor units

01 to: No. of connected units

02: Two or more header units

02: Connection of indoor of other line

Detected position

I/F

Indoor

unit

I/F

Check code name

No corresponding indoor unit during automatic address

No. of connected indoor units / Capacity over

Communication error between indoor header and follower units

Header outdoor unit quantity error

Other line unit connected during automatic address

Communication sending error between outdoor units

Duplicated outdoor follower address setup

Decreased number of connected outdoor units

Outdoor follower unit error

Status

All stop

Corresponding unit only stops.

All stop

Error detection condition

Indoor unit is not found when indoor automatic address start was set up.

• Total capacity of indoor units exceeded 135% of total outdoor capacity.

• No. of connected indoor units are more than 48 units.

[Note]

If this code appears after backup setup of outdoor unit trouble, set up “No. capacity-over detection”.

Turn on SW09/Bit 2 on I/F P.C. board of outdoor header unit.

Regular communication between indoor header and follower units

• There are multiple header outdoor units in 1 line.

• There is none of header outdoor unit in 1 line.

Unit of other line was connected when indoor automatic address started.

Transmission of other outdoor unit was unavailable for 30 seconds or more.

Outdoor addresses manually set up are duplicated.

The signal was not returned for constant from the outdoor unit which was receiving signal.

Outdoor header unit received error code from outdoor follower unit.

• Check the communication line connection between indoor and outdoor.

• Check the electric power line error in indoor.

• Check the noise of surrounding devices.

• Power failure

• Check indoor P.C. board error.

• Check the connection capacity of indoor unit.

• Check the HP capacity of indoor unit.

• Check the indoor/outdoor capacity setup

• Check the No. of connected indoor units.

• Check the outdoor I/F P.C. board error

• Check cable of the remote controller.

• Check power cabling of indoor.

• Check P.C. board of indoor.

The outdoor unit connected with communication cable between indoor and outdoor (U1.U2) is the outdoor unit.

• Check connection of communication line between indoor and outdoor.

• Check outdoor P.C. board(I/F) error.

Separate the cable between lines according to automatic address setup method in “Address setup”.

• Check power supply in outdoor unit. (Is power supplied?)

• Check connection or disconnection of connecting wire between outdoor units.

• Check connection of connector for outdoor P.C. board communication.

• Check outdoor P.C. board (I/F) error.

• Check terminal resistance setting of communication between outdoor units

[Note]

Do not set up the outdoor address manually.

• Outdoor backup is being set.

• Check power supply of outdoor unit. (Is power supplied?)

• Check connection or disconnection of connecting wire between outdoor units.

• Check connection of connector for outdoor P.C. board communication.

• Check outdoor P.C. board (I/F) error.

• Check the check code of outdoor follower unit.

Check item (position)

Page 76

Wired

remote

controller

E31

F01

F02

F03

F04

F05

F06

F07

F08

F10

F12

F13

Check code

Outdoor 7-segment display

Check code Auxiliary code

E31

A-3-IPDU

123 01 ¡ 0A ¡¡ 02 ¡ 0B ¡¡ ¡ 03 ¡¡ 0C ¡¡ 04 ¡ 0D ¡¡¡ 05 ¡¡ 0E ¡¡ ¡ 06 ¡¡ 0F ¡¡¡ ¡ 07 ¡¡¡ 08 ¡ 09 ¡¡

FAN

IPDU

mark: Error position.

A-3-IPDU

123

——

F04 —

F05 —

F06 01: TE1 sensor error

02: TE2 sensor error

F07 —

F08 —

——

F12 —

F13 01: Compressor 1 side

02: Compressor 2 side 03: Compressor 3 side

FAN

IPDU

Detected

position

I/F

Indoor unit

I/F

Indoor

I/F

IPDU

Check code name

IPDU communication error

Indoor TCJ sensor error

Indoor TC2 sensor error

Indoor TC1 sensor error

TD1 sensor error

TD2 sensor error

TE1, TE2 sensor error

TL sensor error

TO sensor error

Indoor TA sensor error

TS1 sensor error

TH sensor error

Status

All stop

Corresponding

unit only stops.

Corresponding unit only stops.

All stop

Corresponding unit only stops.

All stop

Error detection condition

Communication of each IPDU (P.C. board) in inverter box interrupted.

• Resistance value of sensor is infinite or zero. (Open/Short)

• Resistance value of sensor is infinite or zero (Open/Short).

• Resistance value of sensor is infinite or zero (Open/Short)

• Resistance value of sensor is infinite or zero (Open/Short).

Check item (position)

• Check connection of communication connector and disconnection between IPDU and I/F P.C. board.

• Check outdoor P.C. board (I/F, Comp., IPDU, Fan IPDU) error.

• Check external noise.

• Check connection/cabling of TCJ sensor connector.

• Check characteristics of TCJ sensor resistance value.

• Check indoor P.C. board error.

• Check connection/cabling of TC2 sensor connector.

• Check characteristics of TC2 sensor resistance value.

• Check indoor P.C. board error.

• Check connection/cabling of TC1 sensor connector.

• Check characteristics of TC1 sensor resistance value.

• Check indoor P.C. board error.

• Check connection of TD1 sensor connector.

• Check characteristics of TD1 sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection of TD2 sensor connector.

• Check characteristics of TD2 sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection of TE1, TE2 sensor connector.

• Check characteristics of TE1, TE2 sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection of TL sensor connector.

• Check characteristics of TL sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection of TO sensor connector.

• Check characteristics of TO sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection/cabling of TA sensor connector.

• Check characteristics of TA sensor resistance value.

• Check indoor P.C. board error.

• Check connection of TS1 sensor connector.

• Check characteristics of TS1 sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• IGBT built-in temp sensor error → Exchange Comp. IPDU P.C. board.

Page 77

Wired

remote

controller

F15

F16

F22

F23

F24

F29

F31

H01

H02

H03

Check code

Outdoor 7-segment display

Check code Auxiliary code

F15 —

F16 —

F22 —

F23 —

F24 —

——

F31 —

H01 01: Compressor 1 side

H02 01: Compressor 1 side

H03 01: Compressor 1 side

02: Compressor 2 side 03: Compressor 3 side

Detected

position

I/F

Indoor

I/F

IPDU

Check code name

Outdoor temp sensor miscabling (TE1, TL)

Outdoor pressure sensor miscabling (Pd, Ps)

TD3 sensor error

Ps sensor error

Pd sensor error

Indoor other error

Outdoor EEPROM error

Compressor breakdown

Compressor error (lock)

Current detection circuit system error

Status

All stop

Corresponding

unit only stops.

All stop

(∗1)

All stop

Error detection condition

During operation of compressor in HEAT mode, the TE1 detection temp was higher than that of TL by the specified value continued for 3 minutes or more.

High-pressure Pd sensor and low-pressure Ps sensor were exchanged, or output voltages of both sensors are zero.

Sensor resistance value is infinite or 0 (Open/Short)

Output voltage of Ps sensor was zero.

Output voltage of Pd sensor was zero. (Sensor Open)

Pd > 4.15MPa during stop of compressor

Indoor P.C. board did not operate normally.

Outdoor P.C. board (I/F) did not operate normally.

Inverter current detection circuit detected over-current and stopped.

Over-current was detected several seconds after header compressor had started.

While header compressor stopped, current flowed more than the specified current and was detected.

Check item (position)

• Check installation of TE1 sensor and TL sensor.

• Check characteristics of TE1 and TL sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection of high-pressure Pd sensor connector.

• Check connection of low-pressure Ps sensor connector.

• Check pressure sensors Pd and Ps error.

• Check outdoor P.C. board (I/F) error.

• Check compression error of compressor.

• Check connection of TD3 sensor connector.

• Check resistance value characteristics of TD3.

• Check error of outdoor P.C. board (I/F).

• Misconnection of Ps sensor and Pd sensor connectors

• Check connection of Ps sensor connector.

• Check Ps sensor error.

• Check compression error of compressor.

• Check 4-way valve error.

• Check outdoor P.C. board (I/F) error.

• Check SV4 circuit error.

• Check connection of Pd sensor connector.

• Check Pd sensor error.

• Check outdoor P.C. board (I/F) error.

• Check indoor P.C. board error (EEPROM error).

• Check power voltage.

• Check power noise.

• Check outdoor P.C. board (I/F) error.

• Check power voltage. (AC380–415V ± 10%).

• Check compressor error.

• Check cause of abnormal overload operation.

• Check outdoor P.C. board (Comp. IPDU) error.

• Check compressor error.

• Check power voltage. (AC380–415V ±10%).

• Check cable of compressor and phase-missing.

• Check connector/terminal connection on IPDU P.C. board.

• Check conduction of case heater. (Check activation error due to liquid stagnation in compressor.)

• Check outdoor P.C. board (Comp. IPDU) error.

• Check cabling of current detection circuit system.

• Check outdoor P.C. board (Comp. IPDU) error.

(∗1) All stop only in case of the header unit. The follower unit continues operation.

Page 78

Wired

remote

controller

H04

H05

H06

H07

H08

Check code

Outdoor 7-segment display

Check code Auxiliary code

H04 —

H05 —

H06 —

H07 —

H08 01: TK1 sensor error

02: TK2 sensor error 03: TK3 sensor error 04: TK4 sensor error 05: TK5 sensor error

Detected

position

I/F

Check code name

Compressor 1 case thermo operation

Outdoor unit discharge temp. sensor (TD1) miswiring

Low-pressure protective operation

Protection for oil level drop detection

Oil level detective temp sensor error

Status

All stop

Error detection condition

Compressor 1 case thermostat performed protective operation.

While compressor 1 is operating, the discharge temp. (TD1) does not rise up.

Low-pressure Ps detected operation lower than

0.02MPa.

The operating compressor detected oil shortage continuously for 2 hours.

• Resistance value of sensor is infinite or zero. (Open/Short)

Check item (position)

• Check compressor 1 case thermo circuit. (Connector, cable, P.C. board)

• Check full opening of service valve. (Gas and liquid side)

• Check outdoor PMV clogging. (PMV1, 2)

• Check SV41 circuit leakage.

• Check miscabling/misinstallation of SV41 and SV42.

• Check valve open status of indoor PMV.

• Check 4-way valve error.

• Check refrigerant shortage.

• Check mounting of TD1 sensor.

• Check connection and wiring of TD1sensor connector.

• Check characteristics of TD1 sensor resistance value.

• Check outdoor unit P.C. board (I/F) error.

• Check full opening of service valve. (Discharge gas, suction gas and liquid side)

• Check outdoor PMV clogging. (PMV1, 2)

• Check SV2 circuit and SV4 circuit error.

• Check low-pressure Ps sensor error.

• Check indoor air filter clogging.

• Check valve open of indoor PMV.

• Check refrigerant pipe clogging.

• Check outdoor fan operation. (All heating, mainly heating, part cooling operation)

• Check refrigerant shortage.

• Check full opening of service valve of balance pipe.

• Check connection and installation of TK1, TK2, TK3, and TK4 sensors.

• Check characteristics of TK1, TK2, TK3, and TK4 resistance values.

• Check gas leak and oil leak in the same line.

• Check refrigerant stagnation in compressor.

• Check error of SV3A, SV3B, SV3C, SV3D, and SV3E valves.

• Check clogging of oil separator oil return circuit.

• Check clogging of oil-equation circuit.

• Check connection of TK1 sensor connector.

• Check characteristics of TK1 sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection of TK2 sensor connector.

• Check characteristics of TK2 sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection of TK3 sensor connector.

• Check characteristics of TK3 sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection of TK4 sensor connector.

• Check characteristics of TK4 sensor resistance value.

• Check outdoor P.C. board (I/F) error.

• Check connection of TK5 sensor connector.

• Check characteristics of TK5 sensor resistance value.

• Check outdoor P.C. board (I/F) error.

Page 79

Wired

remote

controller

H15

H16

H25

L03

L04

Check code

Outdoor 7-segment display

Check code Auxiliary code

H15 —

H16 01: TK1 oil circuit system error

H25 —

——

L04 —

02: TK2 oil circuit system error 03: TK3 oil circuit system error 04: TK4 oil circuit system error 05: TK5 oil circuit system error

Detected

position

I/F

Indoor

I/F

Check code name

Outdoor unit discharge temp. sensor (TD2) miswiring

Oil level detective circuit system error

Outdoor unit discharge temp. sensor (TD3) miswiring

Duplicated indoor center units

Duplicated outdoor line address

Status

All stop

Corresponding unit only stops.

All stop

Error detection condition

While compressor 2 is operating, the discharge temp. (TD2) does not rise up.

Temperature change of TK1 could not be detected though compressor 1 started the operation.

Temperature change of TK2 could not be detected though compressor 2 started the operation.

Temperature change of TK3 could not be detected though compressor started the operation.

Temperature change of TK4 could not be detected though compressor started the operation, or the difference from other TK sensor changed for a constant time only within the specified range.

Temperature change of TK5 could not be detected though compressor started the operation, or the difference from other TK sensor changed for a constant time only within the specified range.

While compressor 2 is operating, the discharge temp. (TD3) does not rise up.

There are multiple center units in a group.

Line address setup is duplicated against the outdoor unit in different refrigerant pipe system.

Check item (position)

• Check mounting of TD2 sensor.

• Check connection and wiring of TD2 sensor connector.

• Check characteristics of TD2 sensor resistance value.

• Check outdoor unit P.C. board (I/F) error.

• Check TK1 sensor coming-off.

• Check characteristics of TK1 sensor resistance value.

• Check TK1, TK2, TK3, TK4 and TK5 misconnection.

• Check operation error of SV3E, SV3F valve.

• Check capillary clogging of oil-equation circuit and operation error of stop valve.

• Check refrigerant stagnation in compressor.

• Check TK2 sensor coming-off.

• Check characteristics of TK2 sensor resistance value.

• Check TK1, TK2, TK3, TK4 and TK5 misconnection.

• Check SV3E, SV3F valve operation. Check capillary clogging of oil equalization circuit and check stop valve operation.

•

• Check refrigerant stagnation in compressor shell.

• Check TK3 sensor coming-off.

• Check characteristics of TK3 sensor resistance value.

• Check TK1, TK2, TK3, TK4 and TK5 misconnection.

• Check SV3E, SV3F valve operation.

• Check capillary clogging of oil-equalization circuit and check valve operation.

• Check refrigerant stagnation in compressor shell.

• Check TK4 sensor coming-off.

• Check characteristics of TK4 sensor resistance value.

• Check TK1, TK2, TK3, TK4 and TK5 misconnection.

• Check SV3E, SV3F valve operation.

• Check capillary clogging of oil-equalization circuit and check valve operation.

• Check refrigerant stagnation in compressor shell.

• Check TK5 sensor coming-off.

• Check characteristics of TK5 sensor resistance value.

• Check TK1, TK2, TK3, TK4 and TK5 misconnection.

• Check SV3E valve operation error.

• Check capillary clogging of oil-equalization circuit and check valve operation error.

• Check refrigerant stagnation in compressor.

• Check mounting of TD3 sensor.

• Check connection and wiring of TD3 sensor connector.

• Check characteristics of TD3 sensor resistance value.

• Check outdoor unit P.C. board (I/F) error.

• Check indoor address.

• Check the change of remote controller connection (Group/individual) after indoor address setup.

• Check line address.

Page 80

Wired

remote

controller

L05

L06

L07

L08

L09

L10

L20

L28

L29

L30

—

Check code

Outdoor 7-segment display

Check code Auxiliary code

——

L06 No. of indoor units with priority

——

L08 —

——

L10 —

——

L28 —

L29

A-3-IPDU

123 01 ¡ 0A ¡¡ 02 ¡ 0B ¡¡ ¡ 03 ¡¡ 0C ¡¡ 04 ¡ 0D ¡¡¡ 05 ¡¡ 0E ¡¡ ¡ 06 ¡¡ 0F ¡¡¡ ¡ 07 ¡¡¡ 08 ¡ 09 ¡¡

FAN

IPDU

mark: Error position.

A-3-IPDU

123

L30 Detected indoor address

L31 —

FAN

IPDU

Detected

position

I/F

Indoor

I/F

TCC-Link

Indoor

I/F

Indoor

I/F

Check code name

Duplicated indoor units with priority (Displayed on indoor unit with priority)

Duplicated indoor units with priority (Displayed on the unit other than indoor unit with priority)

Group line in individual indoor unit.

Indoor group / address unset

Indoor capacity unset

Outdoor capacity unset

Duplicated central control addresses

Quantity over of connected outdoor units

IPDU quantity error

Interlock in indoor unit from outside

Extended IC (Integrated Circuit) error

Status

All stop

Corresponding

unit only stops.

Corresponding unit only stops.

All stop

Corresponding unit only stops.

Operation

continues.

Error detection condition

Indoor units with priority were duplicated.

At least one indoor unit connected to a group existed in the individual indoor units.

Address was not yet set up.

Indoor unit capacity was unset.

On the I/F P.C. board for service, jumper line was not cut according to the model.

Duplicated central control addresses

There were more than four outdoor units.

No. of IPDU units detected when power was turned on were less.

• Outside error input terminal Detected signal to (CN80) for

more 1 minute

P.C. board (I/F) parts error

Check item (position)

• Check display of indoor unit with priority.

• Check display of indoor unit with priority and outdoor unit.

• Check indoor address.

Note)

After installation, this code is displayed when the power is firstly turned on.

Set up indoor capacity. (DN=11)

Check model setup on outdoor I/F P.C. board A’ssy for service.

• Check central control address.

• Check network adaptor P.C. board. (In case of TCC-Link)

• Check No. of connected outdoor units. (Max. 4 units per 1 system)

• Check communication line between outdoor units.

• Check outdoor P.C. board (I/F) error.

• Check model setup for outdoor I/F service P.C. board.

• Check connection of UART communication connector.

• Check Comp. IPDU, fan IPDU, and I/F P.C. board error.

Note)

UART: Universal Asynchronous Receiver Transmitter

n Outside device is connected to connector (CN80):

1) Check outside device error.

2) Check indoor P.C. board error.

Outside device is not connected to connector (CN80):

1) Check indoor P.C. board error.

Check indoor (I/F) P.C. board.

Page 81

Wired

remote

controller

P01

P03

P04

P05

P07

P10

P12

Check code

Outdoor 7-segment display

Check code Auxiliary code

——

P03 —

P04 01: Compressor 1 side

P05 00:

P07 01: Compressor 1 side

P10 Indoor address with

——

02: Compressor 2 side 03: Compressor 3 side

01: Compressor 1 02: Compressor 2 03: Compressor 3

02: Compressor 2 side 03: Compressor 3 side

trouble

Detected

position

Indoor

I/F

IPDU

I/F

Indoor

Check code name

Indoor fan motor error

Discharge temp TD1 error

Actuation of high-pressure SW

Open phase shortage/phase sequence detection

Inverter DC voltage (Vdc) error (Compressor)

Heat sink overheat error

Indoor overflow error

Indoor fan motor error

Status

Corresponding

unit only stops.

All stop

Corresponding

unit only stops.

Error detection condition

Discharge temp (TD1) exceeded

High-pressure SW actuated.

• Open phase was detected when the power turned on.

• Overvoltage/Volt shortage was detected in inverter DC voltage

IGBT built-in temp sensor (TH) was overheated.

• Float switch operated.

• Float switch circuit disconnected or the connector came off.

• The value of motor speed deviated from target value was detected for certain time.

• Over-current protection operated.

115°C.

Check item (position)

• Check the lock of fan motor (AC fan).

• Check cabling.

• Check full opening of outdoor service valves (Gas side, Liquid side).

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

• Check characteristics of TD1 sensor resistance value.

• Check refrigerant shortage.

• Check 4-way valve error.

• Check leakage of SV4 circuit.

• Check SV4 circuit. (Miswiring and misinstallation of SV41, SV42 and SV43)

• Check connection of high-pressure SW connector.

• Check Pd pressure sensor error.

• Check full opening of outdoor service valves (Gas side, Liquid side).

• Check outdoor fan error.

• Check outdoor fan motor error.

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

• Check clogging of indoor/outdoor heat exchangers.

• Check short-circuiting of outdoor suction/discharge air.

• Check clogging of SV2 circuit.

• Check outdoor P.C. board (I/F) error.

• Check indoor fan system error. (Cause of air volume decrease)

• Check opening of indoor PMV.

• Check miswiring of communication line between indoor and outdoor.

• Check operation error of check valve of discharge pipe.

• Check SV4 valve circuit.

• Check SV5 valve circuit.

• Check refrigerant overcharge.

• Check outdoor P.C. board (I/F) error.

• Check power voltage.

• Check outdoor fan system error.

• Check clogging of heat sink cooling duct.

• Check fixation between IGBT and heat sink. (Check screwing and contact.)

• Check IPDU error.(IGBT built-in temp sensor (TH) error).

• Check the float switch connector.

• Check operation of drain pump unit.

• Check the drain pump circuit.

• Check clogging of drain pipe.

• Check indoor P.C. board error.

• Check connection of fan connector and wiring.

• Check fan motor error.

• Check indoor P.C. board error.

• Check influence of outside air control.

Page 82

Wired

remote

controller

P13

P15

P17

P18

P19

P20

Check code

Outdoor 7-segment display

Check code Auxiliary code

P13 —

P15 01: TS condition

02: TD condition

P17 —

P18 —

P19 Detected outdoor

P20 —

unit No.

Detected

position

I/F

Check code name

Outdoor liquid back detection error

Gas leak detection (TS1 condition)

Gas leak detection (TD condition)

Discharge temp TD2 error

Discharge temp. TD3 error

4-way valve operation error

High-pressure protective operation

Status

All stop

Error detection condition

While the system operated in cooling mode, high ststus of high pressure value was detected in the stopped follower unit.

While the system is operating in HEAT mode, outdoor PMV of which opening degree was 100 pulse or less for a certain time.

Protective stop which generates when the status that suction temperature is over the judgment standard temperature continued for 10 minutes was repeated for 4 times or more.

In cooling operation: 60°C or higher In heating operation: 40°C or higher

Protective stop which generates when the status that while compressor is under low frequency operation, the discharge temperature TD1, TD2 or TD3 detected 108°C or more continuously for 10 minutes was repeated for 4 times or more.

Protective stop which generates when the discharge temperature (TD2) was over 115°C was repeated for 4 times or more.

Discharge temp. (TD3) exceeded 115°C.

When abnormal refrigerating cycle data was detected in heating

Pd sensor detected 3.6MPa or more.

Check item (position)

• Check full close operation of outdoor PMV (1, 2, 4).

• Check Pd and Ps sensor error.

• Check clogging of SV2 circuit.

• Check clogging of balance pipe.

• Check clogging of SV3B circuit.

• Check outdoor P.C. board (I/F) error.

• Check capillary clogging of oil return circuit from oil separator.

• Check leakage of stop valve in discharge assembly part.

• Check refrigerant shortage.

• Check full open of outdoor service valves (gas side, liquid side).

• Check outdoor PMV clogging (PMV1, 2).

• Check characteristics of TS1 sensor resistance value.

• Check 4-way valve error.

• Check leakage of SV4 circuit.

• Check refrigerant shortage.

• Check outdoor PMV clogging (PMV1, 2).

• Check characteristics of TD1, TD2 sensor resistance value.

• Check indoor air filter clogging.

• Check pipe clogging.

• Check SV4 circuit (Valve leakage, misinstallation)

• Check full opening of outdoor service valves (gas side, liquid side).

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

• Check characteristics of TD2 sensor resistance value.

• Check 4-way valve error.

• Check leakage of SV4 circuit.

• Check SV4 circuit. (Miscabling and misinstallation of SV41, SV42 and SV43)

• Check full opening of outdoor service valve (gas side, liquid side).

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

• Check characteristics of TD3 sensor resistance value.

• Check 4-way valve error.

• Check leakage of SV4 circuit.

• Check SV4 circuit (Miswiring and mismounting of SV41, SV42, and SV43).

• Error of 4-way valve error.

• Check coil error and connector connection of 4-way valve.

• Check characteristics of TS1/TE1 sensor resistance value.

• Check characteristics of Pd, Ps pressure sensor output voltage.

• Check misconnection of TE1 and TL sensors.

• Check Pd pressure sensor error.

• Check full opening of service valves (Gas side, Liquid side).

• Check outdoor fan error.

• Check outdoor fan motor error.

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

• Check clogging of indoor/outdoor heat exchangers.

• Check air short-circuiting in outdoor unit.

• Check clogging of SV2 circuit.

• Check outdoor P.C. board (I/F) error.

• Check indoor fan system error. (Cause of air volume decrease)

• Check valve opening of indoor PMV.

• Check miscabling of communication line between indoor and outdoor.

• Check operation error of stop valve in discharge assembly part.

• Check circuit of gas balance SV4 valve.

• Check circuit of SV5 valve.

• Check refrigerant overcharge.

Page 83

Wired

remote

controller

P22

P26

P29

P31

Check code

Outdoor 7-segment display

Check code Auxiliary code

P22 0∗: IGBT circuit

P26 01: Compressor 1 side

P29 01: Compressor 1 side

——

1∗: Output circuit error between

each position

3∗: Motor lock error 4∗: Detection of motor current C∗: TH sensor error D∗: TH sensor error E∗: Inverter DC voltage error

(Outdoor unit fan)

Note)

In “ ∗ ”, 0 to F is displayed, but ignore it.

02: Compressor 2 side 03: Compressor 3 side

Detected

position

IPDU

Indoor

Check code name

Outdoor fan IPDU error

G-Tr short-circuit protection error

Compressor position detection circuit error

Other indoor error (Group follower unit error)

Status

All stop

Corresponding unit only stops.

Error detection condition

(Auxiliary code: 08)

Fan IPDU position detection circuit Position detection was not normally performed.

(Auxiliary code: 0A)

Fan IPDU over-current protective circuit When the fan started and while it is operating,

the status that current flows over constant flow was detected

(Auxiliary code: 0E)

Fan IPDU position detection circuit Position detection was not normally performed.

(Auxiliary code: 0F)

Fan IPDU position detection circuit Position detection was not normally performed.

(Auxiliary code: 06)

External cause such as blast Position detection was not normally performed.

(Restart after 6 seconds)

(Auxiliary code: 04)

External cause such as blast When difference between target rpm and real

rpm is 25% or more (Restart after 6 seconds)

(Auxiliary code: 0D)

Fan IPDU position detection circuit Position detection was not normally performed.

(Windless status)

(Auxiliary code: 0C)

External cause such as blast Position detection was not normally performed.

(Windy status) (Restart after 6 seconds)

Instantaneous over-current was detected when compressor started.

Position was not normally detected.

E07/L07/L03/L08 was detected when other indoor unit in the group was defective.

Check item (position)

• Fan motor check

• Connection check of connector for fan motor

• Error check of IPDU P.C. board for fan

• Fan motor check

• Error check of IPDU P.C. board for fan

• Fan motor check

• Connection check of connector for fan motor

• Error check of IPDU P.C. board for fan

• Fan motor check

• Connection check of connector for fan motor

• Error check of IPDU P.C. board for fan

• Fan motor check

• Connection check of connector for fan motor

• Fan motor check

• Connection check of connector for fan motor

• Fan motor check

• Connection check of connector for fan motor

• Error check of IPDU P.C. board for fan

• Fan motor check

• Connection check of connector for fan motor

• Check connector connection and wiring on Comp. IPDU P.C. board.

• Check compressor error and defect of compressor coil.

• Check outdoor P.C. board (Comp. IPDU) error.

• Check connector connection and wiring.

• Check compressor error and defect of compressor coil.

• Check P.C. board (Comp. IPDU) error.

• Check indoor P.C. board.

Page 84

Error detected by TCC-LINK central control device

Check code

Display on

central control

device

C05

C06

C12

P30

Outdoor 7-segment display

Check code Auxiliary code

—

Differs according to

error contents of the with alarm

(L20 is displayed.)

Detected position

TCC-LINK

General-purpose equipment

I/F

TCC-LINK

TCC-LINK central control device transmission error

General-purpose controller control Interface batched alarm

Follower unit error of group control

Duplicated central control address

Check code name

Status

Operation

continued.

Operation

continued.

Operation

continued.

Operation

continued.

Operation

continued.

Error detection condition

Signal is not transmit from central control device.

Signal is not received from central control device.

Error was input in generalpurpose equipment control interface.

An error occurred in follower unit of the group control. ([P30] is displayed only on the central remote controller.)

Central control addresses were duplicated.

Check item (position)

• Check central control device error.

• Check communication line error of central control device.

• Check setup of terminator resistor.

• Check central control device error.

• Check communication line error of central control device.

• Check setup of terminator resistor.

• Check the power of connecting destination connected device.

• Check P.C. board error of the connected device.

• Check error input.

• Check the check code of the unit with alarm.

• Check the address setup.

Page 85

10-5. Sensor Characteristics

Indoor Unit

n Temperature sensor characteristics

Indoor TA sensor

Resistance

[k ]

Indoor TC1 sensor

Resistance

[k ]

(Below 10˚C)

20 30 40 50 60

Temperature [˚C]

200

150

100

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

Temperature [˚C]

Resistance

(Above 10˚C)

[k ]

Temperature

[C˚]

5 10 15 20 25 30 35 40 45 50 55 60

Temperature

[C˚]

-20

-15

-10

-5 0 5

10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95

100

Resistance

value [k ]

33.9

26.1

20.3

15.9

12.6

10.0

8.0

6.4

5.2

4.2

3.5

2.8

2.4

Resistance

value [k ]

99.9

74.1

55.6

42.2

32.8

25.4

19.8

15.6

12.4

10.0

8.1

6.5

5.3

4.4

3.6

3.0

2.5

2.1

1.8

1.5

1.3

1.1

1.0

0.8

0.7

Indoor TC2,TCJ sensor

200

150

Resistance

[k ]

(Below 10˚C)

100

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

Temperature [˚C]

Resistance

(Above 10˚C)

[k ]

Temperature

[C˚]

-20

-15

-10

-5 0 5

10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

Resistance

value [k ]

115.2

84.2

62.3

46.6

35.2

26.9

20.7

16.1

12.6

10.0

8.0

6.4

5.2

4.2

3.5

2.8

2.4

2.0

1.6

1.4

1.2

Page 86

11. INSTALLATION MANUAL

SMMS 2-way Air Discharge Cassette Type Installation Manual

Original instruction

Thank you for purchasing this Toshiba air conditioner.

Please read this Installation Manual carefully before installing the Air Conditioner.

• This Manual describes the installation method of the indoor unit.

• For installation of the outdoor unit, follow the Installation Manual attached to the outdoor uni

ADOPTION OF NEW REFRIGERANT

This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer

Contents

This Installation Manual describes the methods used to carry out the installation for the indoor unit. For the installation of the outdoor unit, carry out the work by following the instructions in the Installation Manual provided with the outdoor unit. This Installation Manual contains important information that complies with the “Machinery Directive” (Directive 2006/ 42/EC) so read through it carefully to ensure that you understand its contents. After completing the installation work, hand over this Installation Manual as well as the Owner’s Manual provided with the outdoor unit to the user, and ask the user to keep them in a safe place for future reference.

Provide a dedicated power outlet, which is separate from the one used for the outdoor unit, for supplying the power to the indoor unit. Also, the Y-shape branching joint or branch header sold separately is required for the piping connections between the indoor unit and outdoor unit. Select these joints or headers according to the piping system capacity.

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service Person

1 PRECAUTIONS FOR SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 ACCESSORY PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 SELECTION OF INSTALLATION PLACE . . . . . . . . . . . . . . . . . . . . . . . . 6

4 INSTALLATION OF INDOOR UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5 DRAIN PIPING WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 REFRIGERANT PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

7 ELECTRICAL WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8 APPLICABLE CONTROLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

9 TEST RUN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

10 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

11 TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

12 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service person. When any of these jobs is to be done, ask a qualified installer or qualified service person to do them for you. A qualified installer or qualified service person is an agent who has the qualifications and knowledge described in the table below.

Agent Qualifications and knowledge which the agent must have

Qualified installer

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.

EN-1 EN-2

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SMMS 2-way Air Discharge Cassett e Type Installation Manual

Agent Qualifications and knowledge which the agent must have

•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

Qualified service person

trained to insta Carrier Corporation or, alternatively, he or she has been instructed in such operations by an individual or individuals who knowledge related to these operations.

• The qualified service person who is allowed to do the electrical work involved in installation, repair, rel stipulated by the local laws and regulations, and he or she is a person who has been trained in matters relating to Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is related to this work.

• The qualified service person who is allowed to do the refrigerant handling and piping work involved in installation, repair, relocati 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 re work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an i ndividual or individual 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 or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained work.

ll, repair, maintain, relocate and remove the air conditioners made by Toshiba

have been trained and is thus thoroughly acquainted with the

ocation and removal has the qualifications pertaining to this electrical work as

electrical work on the air conditioners made by Toshiba Carrier

thus thoroughly acquainted with the knowledge

on and removal has the qualifications pertaining to this

lating to refrigerant handling and piping

s who have been trained and

to working at heights with the air conditioners made by Toshiba Carrier Corporation

and is thus thoroughly acquainted with the knowledge related to this

Definition of Protective Gear

When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below 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 undertakenProtect

All types of work

Electrical-related

work

Work done at heights (50 cm or more)

Transportation of heavy objects

Repair of outdoor unit

Protective gloves

‘Safety’ working clothing

Gloves to provide protection for electricians and from heat Insulating shoes Clothing to provide protection from el

Helmets for use in industry

Shoes with additional protective toe cap

Gloves to provide protection for electricians and

ive gear worn

ectric shock

when undertaking the special

from heat

EN-3 EN-4

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W arning Indications on the Air Conditioner Unit

Warning indication Description

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect all remote electric power supplies

WAR NIN G ELECTRICAL SHOCK HAZARD

Disconnect all remote electric power supplies before servicing.

before servicing.

WARNING

Moving parts. Do not operate unit with grille removed.

WAR NIN G

Moving parts. Do not operate unit with grille removed. Stop the unit before the servicing.

Stop the unit before the servicing.

CAUTION

High temperature parts. You might get burned

High temperature parts. You might get burned when removing this panel.

when removing this panel.

CAUTION

Do not touch the aluminum 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.

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 burs

1 PRECAUTIONS FOR SAFETY

WARNING

General

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

• Only a qualified installer (*1) or qualified service person (*1) is allowed to install the air conditioner. If the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result.

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

• Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker to the OFF position. Otherwise, electric shocks may result.

• 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 sh ocks if the circuit breaker is set to ON by mistake.

• 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.

• Do not undertake inspections or servicing with all the hooks of the center panel disengaged and with only one or two wires still attached to the center panel. Doing so may cause the center panel to fall down, possibly causing injury to any individuals below.

• Wear protective gloves and safety work clothing during installation, servicing and removal.

• Do not touch the aluminium fin of the outdoor unit. You may injure yourself if you do so. If the fin must be touched for some reason, first put on protective gloves and safety work clothing, and then proceed.

• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of the outdoor unit and result in injury.

• When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the procedure in the ladder’s instructions. Also wear a helmet for use in industry as protective gear to undertake the work.

• When cleaning the filter or other parts, 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 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. Furthermore, while carrying out the work, wear a helmet for protection from falling objects.

• The refrigerant used by this air conditioner is the R410A.

• You shall ensure that the air conditioner is transported in stable condition. In case an accident s uch as dropping of the unit occurs while transporting the air conditioner, contact the dealer.

• Do not move or repair any unit by yourself. There is high voltage inside the unit. You may get electric shock when removing the cover and main unit.

EN-5 EN-6

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Selection of installation location

• 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 imp the measures. Accumulation of highly concentrated refrigerant may cause an oxygen deficiency accident.

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

•When transporting the air conditioner, wear shoes with additional protective toe caps.

•When transporting the air conditioner, yourself if the bands should break.

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

•Do not place any combustion appliance in a place where it is directly otherwise it may cause imperfect combustion.

do not take hold of the bands around the packing carton. You may injure

exposed to the wind of air conditioner,

lement

ble gas. If a

receive

Installation

•When the indoor unit is to be suspended, the designated hanging bolts (M10 or W3/8) and nuts (M10 or W3/8) must be used.

• Install the air conditioner at enough strong places to withstand the weight of the un the unit may fall down resulting in injury.

• Follow the instructions in the Installation Manual to install the air conditioner. Failure to follow these instructions may cause the product

• The designated bolts (M10, M12) and nuts (M10, M12) for securing the outdoor unit must be used when installing the unit.

ll the outdoor unit property in a location that is durable enough to support the weight of the outdoor unit.

• Insta Insufficient durability may cause the outdoor unit to fall, which may result in injury.

•Carry out the specif

If the air conditioner is not installed appropriately, a unit may topple over or fall down, causing an accident. If refrigerant gas has leaked at any point during the installation work, ventilate the area.

• If leaked refrigerant gas should come into contact with flames or sparks, noxious gases may be generated.

to fall down or topple over or give rise to noise, vibration, water leakage, etc.

ied installation work to guard against the possibility of high winds and earthquake.

it. If the strength is not enough,

Refrigerant piping

• Install the refrigerant pipe securely during the installation work before operating the air conditioner. If the compressor is operated with the valve open and without refrigerant pipe, the compressor sucks air and the refr

igeration cycles is over pressurized, which may cause a injury.

• 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

• After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, no

•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 mix the air completely may cause the air conditioner to malfunction.

• Nitrogen gas must be used for the airtight test.

• The charge hose must be connected in such

• 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 be generated.

a long period, which may result in refrigerant leakage.

xious gas may be generated.

ed in the refrigerating cycle. Failure to purge

a way that it is not slack.

Electrical wiring

•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 ind the work properly may result in electric shocks and/or electrical leaks.

• When connecting the electrical wires, repairing the electrical parts or undertaking other electri to provide protection for electricians and from heat, insulating shoes and clothing to provide protection from electric shocks. Failure to wear this protective gear may result in electr

• 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 smoking and/or a fire.

•Be sure to connect earth wire. (Grounding work) Incomplete earthing causes an electric shock.

•Do not connect earth wires to gas pi

•After completing the repair or relocation work, check that the earth wires are connected properly.

• Install a circuit breaker that meets the specif regulations and laws.

• Install the circuit breaker where it can be easily accessed by the agent.

• When installing the circuit breaker outdoors, install one

• Under no circumstances must the power cable be extended. Connection trouble in the places where the cable is extended may give rise to smoking and/or a fire. Electrical wiring work shall be conducted according to law and regulation in the community and the Installation

• Manual. Failure to do so may result in electrocution or short circuit.

pes, water pipes, and lightning rods or earth wires for telephone wire s.

ications in the Installation Manual and the stipulations in the local

ic shocks.

give rise to electric shocks, electrical leakage,

which is designed to be used outdoors.

ividual since failure to carry out

cal jobs, wear gloves

Test run

• 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

receive an electric shock if the power is turned on without first conducting these checks.

• When you have noticed that some kind of trouble (such as when an error display has appeared, there 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 touch the air conditioner yourself but set the 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 serv the trouble status may cause mechanical problems to escalate or result in electric shocks, etc.

•After the work has finished, be sure to use an i more between the charge section and the non-charge metal section (Earth section). If the resistance value is low, a disaster such as a leak or e

• Upon completion of the installation work, check for refrigerant leaks and check the insulation resistance and water drainage. Then conduct a test run to check that the air condi

lectric shock is caused at user’s side.

ice person arrives. Continuing to use the air conditioner in

nsulation tester set (500V Megger) to check the resistance is 1 M or

circuit breaker to the OFF position, and contact

tioner is operating properly.

the ON position. You may

is a smell of

EN-7 EN-8

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SMMS 2-way Air Discharge Cassette Type Installation Manual

Explanations given to user

• Upon completion of the installation work, tell the user where the circuit breaker is located. If the user does not know where the circuit breaker is, he or she will not be able to turn it off in the event that trouble has occurred in the air conditioner.

• 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 (*1) to have the repairs done. Do not set the circuit breaker to the ON position until the repairs are completed.

• After the installation work, follow the Owner’s Manual to explain to the customer how to use and maintain the unit.

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 rupture, injury or other trouble.

CAUTION

New Refrigerant Air Conditioner Installation

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER.

• The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle.

• To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main unit and installation tools are changed from those for the conventional refrigerant.

• Accordingly the exclusive tools are required for the new refrigerant (R410A).

• For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not enter.

2 ACCESSORY PARTS

Accessory parts



Part name Quantity Shape Usage

Installation Manual 1 This manual Be sure to hand over to customers.

CD-ROM (Installation Manual) 1 —

Installation pattern 1 —

Installation gauge 1

Pattern fastening screw 4 For attaching the pattern (M5 × 16)

Banding band 4 For anchoring the insulated pipes

Heat insulating pipe 2 For heat insulation of pipe connecting section

Washer 8 For hanging-down unit (M10 × Ø34)

Hose band 1 For connecting drain pipe

Flexible hose 1 For adjusting center of drain pipe

Heat insulator 1 For heat insulation of drain connecting section

(For other languages that do not appear in this Installation Manual, please refer to the enclosed CD-ROM.)

For confirmation of ceiling opening and indoor unit position

For positioning of ceiling position (Incorporated with the installation pattern)

To Disconnect the Appliance from Main Power Supply

• This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.

The installation fuse (all types can be used) must be used for the power supply line of this conditioner.

(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”

Heat insulator 1 For sealing of wire connecting port (with slit

 parate sold parts

• The Ceiling panel and remote controller are sold separately. For the installation of these products, follow the Installation Manuals supplied with them.

• The wireless type remote controller is designed to be installed by attaching a wireless remote controller kit (sold separately) to the standard panel. (The wireless remote controller kit consists of a wireless remote controller and adjust corner caps with a receiver section.)

)

EN-9 EN-10

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SELECTION OF INSTALLATION PLACE

Select a location for the indoor unit where the cool or warm air will circulate evenly. Avoid installation in the following kinds of locations.

• Locations with acidic or alkaline atmospheres (such as areas with hot springs, factories where chemicals or pharmaceuticals are made and places where the exhaust air from combustion appliances will be sucked into the unit). Doing so may cause the heat exchanger (its aluminum fins and copper pipes) and other parts to become corroded.

• Locations with atmospheres with mist of cutting oil or other types of machine oil. Doing so may cause the heat exchanger to become corroded, mists caused by the blockage of the heat exchanger to be generated, the plastic parts to be damaged, the heat insulators to peel off, and other such problems to result.

• Locations where vapors from food oils are formed (such as kitchens where food oils are used). Blocked filters may cause the air conditioner’s performance to deteriorate, condensation to form, the plastic parts to be damaged, and other such problems to result.

• Locations near obstructions such as ventilation openings or lighting fixtures where the flow of the blown air will be disrupted (a disruption of the air flow may cause the air conditioner’s performance to deteriorate or the unit to shut down).

• Locations where an in-house power generator is used for the power supply. The power line frequency and voltage may fluctuate, and the air conditioner may not work properly as a result.

• On truck cranes, ships or other moving conveyances.

• The air conditioner must not be used for special applications (such as for storing food, plants, precision instruments or art works). (The quality of the items stored may be degraded.)

• Locations where high frequencies are generated (by inverter equipment, in-house power generators, medical equipment or communication equipment). (Malfunctioning or control trouble in the air conditioner or noise may adversely affect the equipment’s operation.)

• Locations where there is anything under the unit installed that would be compromised by wetness. (If the drain has become blocked or when the humidity is over 80%, condensation from the indoor unit will drip, possibly causing damage to anything underneath.)

• In the case of the wireless type of system, rooms with the inverter type of fluorescent lighting or locations exposed to direct sunlight. (The signals from the wireless remote controller may not be sensed.)

• Locations where organic solvents are being used.

• The air conditioner cannot be used for liquefied carbonic acid cooling or in chemical plants.

• Location near doors or windows where the air conditioner may come into contact with high-temperature, highhumidity outdoor air. (Condensation may occur as a result.)

• Locations where special sprays are used frequently.

Ensure that the electrical insulation between the metal parts of structures and metal parts of the air conditioner complies with the laws and regulations enforced in the country where the air conditioner is installed.

CAUTION

When the air conditioner is installed in the following kinds of locations where the ceiling temperature may be 30°C and the relative humidity may be over 80%, condensation may oc cur on the outer surfaces of the indoor unit and drip. Therefore, adhere some heat insulators to the side panels (on four sides) of the indoor unit and surface of the ceiling.

• Kitchens and other locations where high levels of indoor heat are generated

• Locations where the fresh air is supplied through the open space in the ceiling

• Inside ceiling under slate roofs or tiled roofs

Shapes of additional heat insulators (use insulators which are at least 10 mm thick)

Adhesion surfaces

(MMU-)

Heat insulator for ceiling 815 × 570 1180 × 570 1600 × 570 1 –

Heat insulator for outlet side panel

Heat insulator for freshair inlet side panel

Heat insulator for piping side panel 590 × 230 590 × 280 590 × 2801

AP007 to

AP015

815 × 230 1180 × 280 1600 × 2802 –

590 × 230 590 × 280 590 × 2801

Size (mm)

AP018 to

AP030

AP036 to

AP056

Q’ty Remark

Clearance for the hanging fixtures must be provided.

Clearance for the piping and hanging fixtures must be provided.

Inst allation space

Provide the space required for installing and servicing the indoor unit. Provide a clearance of at least 5 mm between the top panel of the indoor unit and ceiling.

5 mm or

1000 mm or

1000 mm or more

Obstacle

Installation space

Model: MMU- Height: A

AP007 to AP015 300 mm or more

AP018 to AP056350 mm or mor

EN-11 EN-12

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SMMS 2-way Air Discharge Cassette Type Installation Manual

Ceiling height

It is hard for the warm air to reach the floor level if the ceiling height exceeds the standard dimension (set at the time of shipment) in the table below. Therefore, the high-ceiling setting must be selected. For details on how to select this setting, refer to the section “Installing indoor unit on high ceiling” in APPLICABLE CONTROLS of this manual.

Height list of ceiling possible to be installed

Model: MMU- AP007 to AP030 AP036 to AP056 SET DATA

Standard (At shipment) 2.7 2.7 0000

High ceiling (1) 3.2 3.0 0001

High ceiling (3) 3.8 3.5 000

REQUIREMENT

• A high-ceiling installation can only be used for models AP007 to AP012 when the ratio of total connection capacity of the indoor unit to the outdoor unit capacity is 100% or less. Do not use this kind of installation if this capacity is over 100%.

• It is possible to change how long the filter sign (signaling that it is time to clean the filter) is to stay lighted on the remote controller in accordance with the installation conditions.

• It is also possible to raise the detection temperature for the heating if it is hard for the air conditioner to heat up the environment satisfactorily due to a factor such as the location where the indoor unit is installed or the structure of the room.

• For details on the setting, refer to the section “Change of lighting time of filter sign” and “To secure better effect of heating” in APPLICABLE CONTROLS of this manual.

(Unit: m)

I n case of wireless type

Decide on the position where the remote controller is to be operated and where the unit is to be installed. (The wireless type can sense signals within a range of approximately 8 meters. This distance serves as a general guideline. It may be slightly more or slightly less depending on the remaining charge of its batteries.)

• To prevent a malfunction, select a place where is not influenced by a fluorescent light or direct sunlight.

• Two or more (up to 6 units) indoor units with wireless type remote controller can be installed in the same room.

4 INSTALLATION OF INDOOR UNIT

CAUTION

Strictly comply with the following rules to prevent damage of the indoor units and human injury.

• Do not put a heavy article on the indoor unit. (Even units are packaged)

• Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, be sure to use buffering cloth, etc. to not damage the unit.

• To move the indoor unit, hold the hooking metals (4 positions) only. Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, or resin parts, etc.).

• Carry the package by two or more persons, and do not bundle it with plastic band at positions other than specified.

Within 8 m

EN-13 EN-14

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E xternal view

AP007 to AP015 (Unit: mm)

Refrigerant pipe connecting port

Model: MMU- Gas side: A

AP007 to AP012 Ø9.5

AP015 Ø1

(A)

( )

(

C/L

)

680

620

380

(F)

213.5

(I) (J)

312

480

C/L

2.7

880 1000 1050

815

95.5

(C)

+10

(B)

(A)

(G) (H)

(D)

29520

151

(O)

70 215

105

Ø162

105

178

B view

570

137.5 95 190

(K)

Ø6.4

(L)

189

257.5 300

Ø1

105

(A) Panel external dimension (I) Ceiling bottom surface

(B) Ceiling opening dimension (J) Ceiling panel (Sold separately)

(D) Electric parts box (L) Refrigerant pipe connecting port (Gas)

Knockout square hole for auxiliary fresh air flange

(E)

For Ø150 (Sold separately) (M)

(F) Knockout hole (N) Take-in port of wires

Unit external dimension

(G)

(H) Hanging bolt M10 or W3/8 (Procured locally) (P) Knockout hol

2080185

150

105 105

105

A view

(E)

(G)

147.5

(M)

241

103

(N)

(P)(P)

Ø162

202

Drain pipe connecting port (Be absolutely sure to use the flexible hose provided for the connection here.)

Wireless signal sensor mounting area (Sold

(O)

separately)

EN-15 EN-16

EN-18

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SMMS 2-way Air Discharge Cassette Type Installation Manual

AP018 to AP030 (Unit: mm)

(E)

(M)

(P)

(N)

291

103

255

105

Ø162

105

226.5

Drain pipe connecting port (Be absolutely sure to use the flexible hose provided for the connection here.)

Wireless signal sensor mounting area (Sold

(O)

separately)

Refrigerant pipe connecting port

Model: MMU- Liquid side: A Gas side: B

AP018 Ø6.4 Ø12.7

AP024 to AP030 Ø9.5 Ø15.

( )

(A)

(

)

C/L

680

620

380

226.5

(I)

(E)

105

Ø162

178

B view

105

Ø162

C/L

(K)

(L)

(D)

+10

480

(A)

(G)

480

(F)

(H)

255

1245 1365 1415

118 0

110

335255

242

120

34520

255

151

570

80185

(F)

490 335100

120

137.5 147.5 20

95 190

480

A view

(J)

(O)

(A) Panel external dimension (I) Ceiling bottom surface

(B) Ceiling opening dimension (J) Ceiling panel (Sold separately)

(D) Electric parts box (L) Refrigerant pipe connecting port (Gas)

Knockout square hole for auxiliary fresh air flange

(E)

For Ø150 (Sold separately) (M)

(F) Knockout hole (N) Take-in port of wires

Unit external dimension

(G)

(H) Hanging bolt M10 or W3/8 (Procured locally) (P) Knockout hol

EN-17 EN-18

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SMMS 2-way Air Discharge Cassette Type Installation Manual

AP036 to AP056 (Unit: mm)

C/L

(E)

Ø162

(A)

( )

(

)

178

680

620

380

(G)

(F)

480

1665

+10

1785

1835

(E) (E)

400275

105

Ø162

105

125

105105

1600

120

Ø162

320

226.5

(I)

(J)

(H)

(D)

151

255

(K)

Ø9.5

(L)

Ø15.9

242

34520

490 125310

(O)

120

255

(F)

480

B view

570

80185

137.5 147.5 20

95 190

105

103

(N)

400 275

162

Ø162

(M)

291

(P)(P)

105

226.4

A view

(A) Panel external dimension (I) Ceiling bottom surface

(B) Ceiling opening dimension (J) Ceiling panel (Sold separately)

(D) Electric parts box (L) Refrigerant pipe connecting port (Gas)

Knockout square hole for auxiliary fresh air flange

(E)

For Ø150 (Sold separately) (M)

Drain pipe connecting port (Be absolutely sure to use the flexible hose provided for the connection here.)

(F) Knockout hole (N) Take-in port of wires

Unit external dimension

(G)

(H) Hanging bolt M10 or W3/8 (Procured locally) (P) Knockout hol

Wireless signal sensor mounting area (Sold

(O)

separately)

EN-19 EN-20

Page 96

SMMS 2-way Air Discharge Cassette Type Installation Manual

Ope ning a ceiling and installation of hanging bolts

• Decide on the installation position and orientation of the indoor unit while factoring in “SELECTION OF INSTALLATION PLACE” in this manual and the piping and wiring work to be performed after the indoor unit has been suspended from the ceiling.

• After the location of the indoor unit installation has been determined, open the ceiling and install hanging bolts.

• The dimensions of the ceiling opening and hanging bolt pitches are given in the outline drawing and the attached installation pattern.

• When a ceiling already exists, lay the drain pipe, refrigerant pipe, indoor unit/outdoor unit connection wires, and remote controller wires to their connection locations before hanging the indoor unit.

Procure hanging bolts and nuts for installing the indoor unit (these are not supplied).

Hanging bolt M10 or W3/8 4 pieces

Nut M10 or W3/8 12 piec

How to use the installation pattern (accessory)

Use the installation pattern to position a ceiling opening and hanging bolts.

Use the installation pattern to position the ceiling opening when hanging a ceiling.

• After the hanging bolts have been installed, install the indoor unit.

• Screw down the installation pattern on the ceiling panel mounting area of the indoor unit hanging fixtures. (Use the pattern fastening screws: M5 × 16 (accessory).)

• When hanging a ceiling, open the ceiling along the outside dimensions of the installation pattern.

Indoor unit

Treatment of ceiling

The ceiling differs according to structure of building. For details, consult your constructor or interior finish contractor. In the process after the ceiling board has been removed, it is important to reinforce ceiling foundation (frame) and to keep horizontal level of installed ceiling correctly in order to prevent vibration of ceiling board.

• Cut and remove the ceiling foundation.

• Reinforce the cut surface of ceiling foundation, and add ceiling foundation for fixing the end of ceiling board.

Installation of hanging bolt

Use M10 or W3/8 hanging bolts (4 pcs, procured locally). Matching to the existing structure, set pitch according to size in the unit external view as shown below.

New concrete sla b

Install the bolts with insert brackets or anchor bolts.

Rubber

Anchor bolt

(Blade type bracket) (Slide type bracket) (Pipe hanging anchor bolt)

Existing concrete slab

Use a hole-in anchors, hole-in plugs, or a hole-in bolts.

Steel frame structure

Use existing angles or install new support angles

Hanging bolt

Installation pattern (Accessory)

Support angleHanging bolt

Use the pattern fastening screws: M5 × 16 (accessory). (These screws are used only to fasten the installation pattern. When mounting the ceiling panel, use the special-purpose mounting screws provided with the ceiling panel (sold separately).)

EN-21 EN-22

Page 97

SMMS 2-way Air Discharge Cassette Type Installation Manual

I nstallation of indoor unit

• Attach a nut (M10 or W3/8: procured locally) and the Ø34 washer (supplied) to each hanging bolt.

• Insert a washer on both sides of the T groove of the hanging bracket of the indoor unit, and hang the indoor unit.

Procure hanging bolts and nuts locally.

Hanging bolt (M10 or W3/8)

Nut (M10 or W3/8)

Washer (M10 × Ø34, accessory)

To prevent the bolt from falling off (for safety), be sure to set it just under the hanging bracket as shown in the figure.

Nut (M10 or W3/8)

Indoor unit

Ceiling board

Installation gauge

• Check that the four sides of the indoor unit are level using a level vial.

• Detach the installation gauge (accessory) from the installation pattern.

• Use the installation gauge to check and adjust the relative positions of the indoor unit and the ceiling opening as

well as the suspension height. (Orientation of the installation gauge is printed on the gauge.) (1) Check that the bottom panel of the indoor unit is positioned 77 to 82 mm higher than the bottom surface of the

ceiling panel. (All four corners) (2) Check that the clearance between the outlet side (shorter side) of the indoor unit and ceiling panel is 25 mm. (3) Check that the clearance between the outlet side (longer side) of the indoor unit and ceiling panel is 74 mm.

Level vial

EN-23 EN-24

CAUTION

Before installing a model AP007 to AP015 indoor unit, be absolutely sure to remove the tape used for transportation between the fan and bell mouth. Running the unit without removing the tape may damage the fan motor.

Page 98

SMMS 2-way Air Discharge Cassette Type Installation Manual

Installation of ceiling panel (sold separately)



Install the ceiling panel according to the Installation Manual attached with it after piping/wiring work has completed. To install the ceiling panel, follow the instructions provided with the panel. Check that installation of indoor unit and ceiling opening part is correct, and then install it.

5 DRAIN PIPING WORK

CAUTION

FOLLOWING THE INSTALLATION MANUAL, PERFORM THE DRAIN PIPING WORK SO THAT WATER IS PROPERLY DRAINED, AND APPLY A HEAT INSULATION SO AS NOT TO CAUSE A DEW CONDENSATION. INAPPROPRIATE PIPING WORK MAY RESULT IN WATER LEAKAGE IN THE ROOM AND WET OF FURNITURE.

• Provide the indoor drain piping with proper heat insulation.

• Also be absolutely sure to provide the area where the pipe connects to the indoor unit with proper heat insulation. Improper heat insulation will cause condensation to form.

• Ensure that the drain pipe is sloping downward (at an angle of 1/100 or more), and do not run the pipe up and down (arched shape) or allow it to form traps. Doing so may cause abnormal sounds.

• Restrict the length of the traversing drain pipe to 20 meters or less. In the case of a long pipe, provide support brackets at intervals of 1.5 to 2 meters to prevent flapping.

• Install the collective piping as shown in the following figure.

• Do not provide any air vents. Otherwise, the drain water will spout, causing water to leak.

• Do not allow any force to be applied to the connection area with the drain pipe.

• A hard PVC pipe cannot be connected to the drain pipe connecting port of the indoor unit. Be absolutely sure to use the flexible hose provided for the connections with the drain pipe connecting port.

• Adhesive agents cannot be used for the drain pipe connecting port (hard sock et) of the indoor unit. Be absolutely sure to secure the pipe using the hose bands provided. Use of an adhesive agent may damage the drain pipe connecting port or cause water to leak.

1.5 m to 2 m Support bracket

Joint the connecting sections of ceiling panel, ceiling surface, ceiling panel and indoor unit closely. Any gap between them will cause air leakage and the generate condensation or water leakage.

 stallation of remote controller (sold separately)

For installation of the remote controller, follow the Installation Manual attached with the remote controller.

• Do not leave the remote controller at a place exposed to the direct sunlight and near a stove.

• Install the remote controller after operating it and checking that the indoor unit can sense its signals properly. (Wireless type)

• Keep the remote controller at least one meter away from a TV set, stereo components or other devices. (Otherwise, the picture may be disrupted or the noise may affect the sound.) (Wireless type)

Downward slope 1/100 or more

Heat insulator

Arched shape

NO GOOD

Trap

(Collective piping)

As long as possible (Approx. 10 cm)

Downward slope 1/100 or more

EN-25 EN-26

Page 99

SMMS 2-way Air Discharge Cassette Type Installation Manual

Drain pipe connecting port (Hard socket)

Hose band (accessory)

Soft socket

Flexible hose (accessory)

Hard socket

Adhesive inhibited

Piping/Heat insulating material

Require the following materials for piping and heat insulating at site.

Socket of hard vinyl chloride pipe for VP25

Piping

Heat insulator

Hard vinyl chloride pipe VP25 (Outer dia.: Ø32 mm)

Foam polyethylene: Thickness 10mm or mo

VP25 vinyl chloride pipe (Procured locally)

Socket for VP25 (Procured locally)

Conne cting flexible hose

• Insert the soft end socket of the flexible hose provided into the drain pipe connecting port of the indoor unit as far as it will go.

• Align the provided hose band with the end of the pipe connecting port, and tighten it securely.

CAUTION

• Be absolutely sure to secure the soft end socket with the hose band provided, and ensure that where the band is tightened is facing up.

• Do not use the flexible hose provided with the hose bent to an angle greater than 45° to avoid breakage or clogging.

NO GOODOK

Riser (Trap)

90° Bend

Align the attached hose band to the end of

hose, set the tightening position upward, Drain pipe connecting port (Transparent)

and then tighten it.

Flexible hose (Accessory)

VP25 vinyl chloride pipe (Procured locally)

Indoor unit

Socket for VP25 vinyl chloride pipe (Procured locally)

EN-27 EN-28

Page 100

SMMS 2-way Air Discharge Cassette Type Installation Manual

Connecting drain pipe



• Connect a hard socket (procured locally) to the hard socket of the attached supplied flexible hose.

• Connect a drain pipe (procured locally) to the connected hard socket.

Che ck the draining

In the test run, check that water drain is properly performed and water does not leak from the connecting part of the pipes. When doing this, also check that no abnormal sounds are heard from the drain pump motor. Be sure to check draining also when installed in heating period.

CAUTION

When the electrical and wiring work has been completed

• Connect hard vinyl chloride pipes securely using an adhesive for vinyl chloride to avoid water leakage.

• It takes some time until the adhesive is dried and hardened (refer to the manual of the adhesive). Do not apply stress to the joint with the drain pipe during this time period.

• Before attaching the panel, pour some water by following the method shown in the following figure. Then, while performing a cooling operation, check that the water drains from the drain pipe connecting port (transparent) and that no water is leaking from the drain pipe.

When the electrical and wiring work has not been completed

• Disconnect the float switch connector (3P: red) from the connector (CN34: red) on the printed circuit board inside the electrical parts box. (Before doing this, be absolutely sure that the power has been turned off.)

• Connect a 220 V to 240 V supply voltage to (L) and (N) on the power supply terminal block. (Never apply a 220 V to 240 V voltage to (A), (B), (U1) or (U2) of the power supply terminal block. Otherwise, the printed circuit board may be damaged.)

• Pour the water by following the method shown in the following figure. (Amount of water poured: 1500 cc to 2000 cc)

• When the power is turned on, the drain pump automatically starts running. Check whether the water is draining from the drain pipe connecting port (transparent), and check that no water is leaking from the drain pipe.

• After checking that the water drains and there are no water leaks, turn off the power, connect the float switch connector to its original location (CN34) on the printed circuit board, and return the electrical parts box to its original position.

220 V to 240 V

White

Black

Red

100

 ain up

When a down-gradient cannot be secured for the drain pipe, drain-up piping is possible.

• The height of the drain pipe must be 850 mm or less from the underside of the ceiling.

• Take the drain pipe out of the drain pipe joint with the indoor unit in 300 mm or less, and bend up the pipe vertically.

• Immediately after the pipe is bent up vertically, lay the pipe making a down-gradient.

300 mm or less

Rise: A

Indoor unit

Underside of ceiling

Model: MMU- Rise: A

AP007 to AP015 609 mm or less

AP018 to AP056 559 mm or le

Rising up 850mm or less

Black

Pull out connector CN34 (Red) from P.C. board.

EN-29 EN-30

Toshiba MMU-AP0302WH, MMU-AP0092WH, MMU-AP0562WH, MMU-AP0242WH, MMU-AP0182WH SERVICE MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual