Toshiba MMK-AP0074MH-E, MMK-AP0094MH-E, MMK-AP0124MH-E, MMK-AP0074MH-TR, MMK-AP0094MH-TR SERVICE MANUAL

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Page 1

FILE NO. A10-034-1

SERVICE MANUAL

MULT TYPE

MMK-AP0074MH-E MMK-AP0094MH-E MMK-AP0124MH-E

MMK-AP0074MH-TR MMK-AP0094MH-TR MMK-AP0124MH-TR

• This Service Manual describes contents of the new High Wall indoor unit.

For the outdoor unit, refer to the Manual with FILE NO. A10-005, A05-004-1, A05-015.

• The service parts will be supplied by TCTC.

R410A

PRINTED IN JAPAN, Revised on Jul, 2012 ToMo

Page 2

CONTENTS

PRECAUTION FOR SAFETY ............................................................................ 6

NEW REFRIGERANT (R410A) ....................................................................... 12

1. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ...................................... 14

2. WIRING DIAGRAM ................................................................................... 15

3. PARTS RATING ........................................................................................ 16

4. REFRIGERANTING CYCLE DIAGRAM ................................................... 17

5. CONTROL OUTLINE................................................................................ 18

6. CONFIGURATION OF CONTROL CIRCUIT ............................................ 24

7. APPLIED CONTROL ................................................................................ 31

8. TROUBLESHOOTING .............................................................................. 44

9. INSTALLATION MANUAL ........................................................................ 68

10. HOW TO REPLACE MAIN PARTS ........................................................... 89

11. REPLACEMENT OF SERVICE INDOOR P.C. BOARD ............................ 94

12. EXPLODED VIEWS AND PARTS LIST .................................................... 99

– 2 –

Page 3

Original instruction

Please read carefully through these instructions that contain important information which complies with the

“Machinery” Directive (Directive 2006/42/EC), and ensure that you understand them.

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service Person

The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service person.

When any of these jobs is to be done, ask a qualified installer or qualified service person to do them for you.

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

Agent

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

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.

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

[Explanation of indications]

Indication

Explanation

Indicates contents assumed that an imminent danger causing a death or serious

DANGER

WARNING

CAUTION

∗ Property damage: Enlarged damage concerned to property, furniture, and domestic animal/pet

injury of the repair engineers and the third parties when an incorrect work has been executed.

Indicates possibilities assumed that a danger causing a death or serious injury of the repair engineers, the third parties, and the users due to troubles of the product after work when an incorrect work has been executed.

Indicates contents assumed that an injury or property damage (∗) may be caused on the repair engineers, the third parties, and the users due to troubles of the product after work when an incorrect work has been executed.

[Explanation of illustrated marks]

Mark

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.

Explanation

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 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.

CAUTION

Do not climb onto the fan guard. Doing so may result in injury.

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.

CAUTION

Do not climb onto the fan guard. Doing so may result in injury.

Page 6

Precautions for Safety

The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual.

DANGER

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

Otherwise, electric shocks may result.

Before opening the 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.

Turn off

breaker.

Electric shock

hazard.

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 high-voltage capacitors. Natural discharge of the capacitor takes about five minutes.

Prohibition

Stay on

protection.

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.

Page 7

WARNING

General.

Check earth

wires.

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

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

leaks and/or other problems.

Do not use any refrigerant different from the one specified for complement or replacement. Other wise, abnormally high pressure may be generated in the refrigeration cycle, which may result in

a failure or explosion of the product or an injury to your body.

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

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

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

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.

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.

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 tele-

phone wires.

Prohibition of

modification.

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

Page 8

Use specified

parts.

Do not bring a

child close to

the equipment.

Insulating measures

No fire

Refrigerant

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.

RefrigerantIf, 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.

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

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 injuryis caused.

Assembly/

Wiring

Insulator

check

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.

Page 9

Ventilation

Compulsion

Check after

repair

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.

When the refrigerant gas leaks, find up the leaked position and repair it surely. If the leaked position cannot be found up and the repair work is interrupted, pump-down and tighten the service valve, otherwise the refrigerant gas may leak into the room. The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous. When installing equipment which includes a large amount of charged refrigerant such as a multi air conditioner in a sub-room, it is necessary that the density does not the limit even if the refrigerant leaks. If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is caused.

Tighten the flare nut with a torque wrench in the specified manner. Excessive tighten of the flare nut may cause a crack in the flare nut after a long period, which may result in refrigerant leakage.

Nitrogen gas must be used for the airtight test.

The charge hose must be connected in such a way that it is not slack.

For the installation/moving/reinstallation work, follow to the Installation Manual. If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric 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.

Do not

operate the

unit with the

valve closed.

Check after

reinstallation

Cooling

check

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

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

• The valve is opened.

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

Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the air conditioner. It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks, injury, water leakage, noise and/or vibration may result.

Check the following items after reinstallation.

1) The earth wire is correctly connected.

2) The power cord is not caught in the product.

3) There is no inclination or unsteadiness and the installation is stable.

If check is not executed, a fire, an electric shock or an injury is caused.

When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe. Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will cause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in reputing, injury, etc.

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.

Page 10

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 nonspecified 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

Model

MMK-AP0074MH-E

MMK-AP0094MH-E

MMK-AP0124MH-E

MMK-AP0074MH-TR

MMK-AP0094MH-TR

MMK-AP0124MH-TR

Under 70 dBA

∗

Sound power level (dBA)

Cooling Heating

Main unit (Ceiling panel)

∗∗ ∗∗ ∗∗ ∗∗ ∗∗ ∗∗

DECLARATION OF CONFORMITY

Weight (kg)

Manufacturer: Toshiba Carrier (Thailand) Co., Ltd.

144/9 Moo5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi,

Amphur Muang, Pathumthani 12000 Thailand

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

MMK-AP0074MH-E, MMK-AP0094MH-E. MMK-AP0124MH-E

MMK-AP0074MH-TR, MMK-AP0094MH-TR, MMK-AP0124MH-TR

Commercial name: Super Modular Multi System Air Conditioner

Super Heat Recovery Multi System Air Conditioner MiNi-Super Modular Multi System Air Conditioner (MiNi-SMMS)

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 refriger-

ant. (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 convennew equipment tional equipment for R410A can be used

Yes *(Note 1)

Ye s N o

Yesa No

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. (7) Screwdriver (+, –)

(2) Torque wrench (8) Spanner or Monkey wrench

(3) Pipe cutter (9) Hole core drill

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

(5) Pipe bender (11) Tape measure

(6) Level vial (12) Metal saw

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

(1) Clamp meter (3) IInsulation resistance tester

(2) Thermometer (4) Electroscope

Page 14

1. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

Model: MMK-AP0074MH∗, AP0094MH∗, AP0124MH

Air inlet part

790

Air outlet gril

790

275

208

Knockout

54.5

∗

275

208

54.5

208

Knockout

275

Hock for insulation plate

Refrigerant pipe connecting port Gas side Ø9.5

(Installation space)

790

321

208

275

Drain pipe

Refrigerant pipe connecting port Liquid side Ø6.4

100mm or more

170mm or more

Note : All dimensions are in mm.

170mm or more *300mm or more

*(For attached Flow Selector unit of heat recovery model)

Page 15

2. WIRING DIAGRAM

Outdoor unit

BLU

CN40

(BLU)

CN44

1. indicates the terminal block.

Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the

wiring at site.

3. indicates the control P.C.board

12345

WHI YEL YEL YEL YEL

23456

(BRW)

123456

CN33

(WHI)

BLK

3 321

WHI

CN41

(BLU)

Heat

BLK

DC 15V

exchanger

sensor

(TC1)

BLK

(BRW)

CN100

DC 0V

DC 12V

Powe r

supply

Heat

exchanger

BLK

1 1

CN101

DC 7V

circuit

sensor

(TC2)

2 2TF1

(BLU)

(GRN)

CN103

WHI BLK

Heat

exchanger

sensor

BLK

(YEL)

CN102

2 1

(TCJ)

2 1

Thermo

sensor

BLK

1 1

CN104

CN80

CN60

CN1(WHI)

Wierd remote

(TA)

2 2

(WHI)

(GRN)

(WHI)

controller

(Sold Separately)

PNL/EMG

Option

Louver

motor

Fan

motor

Pulse motor

valve

BLK

BROWN

RED

WHITE

YELLOW

BLUE

BLACK

GRAY

YEL

BLU

BLK

PINK

PNK

GRY

:::::::::::

WHI

RED

BRW

Color identification

RED

BLK WHI YEL BLU

WHI YEL ORN BLU BRW RED

HBS

ORANGE

GREEN &

YELLOW

ORN

GRN & YEL

13456

12345

123456

54321 21

CN22

GREEN

GRN

(WHI)

CN210

CN82

(BLU)

CN50

(WHI)

F301 Fuse

T3. 15A 250V~

1 1

WHI

RED

65432121 654321 321

654321

4321

CN61

(MCC-1510)

BLU

RED

987654321109874321

ORN GRY

54321

1 3

CN309

(YEL)

GRN & YEL

YEL BRW WHI

PNK GRY YEL BRW WHI

WHI

RED

GRN & YEL

CN213 (WHI)

CN81 (BLK)

CN67

(BLK)

(YEL)

Control P.C.board for indoor unit

CN32

(WHI)

Fan Drive

123456

234567

9 1011

(MCC-861)

and indication parts

Infrared rays receive

Flow selector Unit

(Sold sepalately)

54321

Heat exchanger

220V 60Hz

GRN & YEL

Single phase

Power Supply

220-240V 50Hz

Page 16

3. PARTS RATING

3-1. Parts Rating

No.

Fan motor (for indoor)

Grille motor

Thermo. Sensor (TA sensor)

Heat exchanger sensor (TC1 sensor)

Heat exchanger sensor (TC2 sensor)

Heat exchanger sensor (TCJ sensor)

Parts Name

3-2. Name of Each Part

Type

ICF-340-30 MF-340-30

MP24Z

318mm

Ø4, 600mm

Ø6, 800mm

Specications

Output (Rated) 30W, 280-340V DC

10kΩ at 25°C

Air inlet grille

Air in the room is sucked from here.

Air filter

Removes dust and trash. (Air filter is provided in the air inlet grille.)

Earth screw

Earth screws are provided in the electric parts box.

Air outlet/Air outlet flap

Change the direction of the air to be discharged according to cool/heat mode.

Page 17

4. REFRIGERANTING 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): White)

1) Detects indoor suction temperature

(Connector CN100 (3P): Brown)

1) Controls PMV super heat in cooling operation

(Connector CN101 (2P): Blue)

1) Controls PMV under cool in heating operation

(Connector CN102 (2P): Yellow)

1) Controls PMV super heat in cooling operation

Page 18

5. CONTROL OUTLINE

5-1. Indoor Unit Control Specifications

No.

Item

Power supply is reset.

Operation select

Outline of specifications

(1) Distinction of outdoor unit

When the power supply is reset, the outdoor units are distinguished, and control is exchanged according to the distinctive results.

(2) Check code clear

When the power supply is reset, the check code is also reset once. If an abnormal status which the check code appears after Start/Stop button of the remote controller has been pushed continues, the check code is displayed again on the remote controller.

(1) Based upon the operation select command from the remote controller or central controller, the

operation mode is se-lected.

Remote controller command

STOP

FAN

COOL

DRY

HEAT

AUTO

(2) Operation commend permission mode

Neither AUTO mode of the standard model nor HEAT mode of Cooling-only model can be selected. When a wireless remote control is used, the mode is notified by the receiving sound Pi, Pi (Twice) and alternative flashing of “ To release the alternative flashing, change the mode on the wireless remote controller.

Cooling or HEAT operation mode is automatically selected by Ta and Ts and the unit starts operation.

” and “ ”.

Control outline

Stops air conditioner.

Fan operation

Cooling operation

Dry operation

Heating operation

• Judgment of outdoor unit

• Exchange of cooling-only unit

• Exchange of standard model with the flex model

Remarks

Room temp. control

Automatic capacity control

Air volume control

(1) Adjustment range Set temperature on remote controller (°C)

In cooling/drying

Wired type

Wireless type

(2) From the item code 06, the setup temperature in heating

operation can be corrected.

Setup data

Setup temp. correction

Setup at shipment

Setup data

(1) Based upon difference between Ta and Ts, the operation

frequency of the outdoor unit varies.

(1) By the command from the remote controller, “HIGH (HH)”,

“MED (H)”, or “LOW (L)” “AUTO” operation is executed. For the wireless remote controller type, “HH”, “H+”, “H”, “L+”,

“L”, or “AUTO” operation is executed.

(2) While air speed is in AUTO mode, the air speed is changed

according to the difference between Ta and Ts.

18 to 29°C

17 to 30°C

0246

+0°C +2°C +4°C +6°C

In heating

18 to 29°C

17 to 30°C

Heating suction temperature shift

Ta: Room temperature Ts: Setup temperature

HH > H+ > H > L+ > L > LL

Page 19

No.

Prevention of cold air discharge

Freeze prevention control (Low temp. release)

Item

Outline of specifications

(1) In heating operation, the upper limit of the fan tap is set by

one with higher temperature of TC2 sensor and TCJ sensor.

• 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 30˚C, below 32˚C, UL C zone:

Over 32˚C, below 24˚C, L D zone:

Over 24˚C, below 36˚C, H E zone: HH

(1) In cooling operation, the air conditioner operates as de-

scribed below based upon temp. detected by TC1, TC2 and TCJ sensors.

To prevent the heat exchanger from freezing, the operation stops.

• When “J” zone is detected for 5 minutes, the forced thermo is OFF.

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

• When “1 ” zone is detected, the timer is cleared and the operation returns to the normal operation.

• When the forced thermo-OFF became S0 with continuation of “J” zone, operation of the the indoor fan in LOW (L) mode until it reaches the “1 ” 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.

Remarks

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

• In A and B zones, “

” is

displayed.

(˚C)

P1 Q1

10°C (5°C) 10°C

0°C –14°C

(2) In 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 forced thermo is 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

TC1 TC2, TCJ

1) TC1

12°C and TC2 > 12°C and TCJ > 12°C

2) 20 minutes passed after stop.

(˚C)

TC2, TCJ

–2.0°C

5°C

Page 20

No.

Cooling oil (refrigerant) recovery control

Heating refrigerant (oil) recovery control

Item

Outline of specifications

While the outdoor unit is recovering cooling oil (refrigerant), the indoor units perform the following control tasks: [common for operational (cooling thermo ON/thermo OFF/FAN), as well as nonoperational indoor units]

(1) Open the indoor PMV to a certain degree. (2) Engage in recovery control for a specified period of time

and return to normal cooling operation at the end of this period upon terminating the control.

While the outdoor unit is recovering heating refrigerant (oil), the indoor units perform the following control tasks:

(1) Open the indoor PMV to a certain degree. (2) Control the indoor fan according to the operation mode. [Indoor units operating in heating thermo ON/OFF state]

Let the indoor fan continue operating, but turn it off if the temperature of the indoor heat exchanger drops.

[Indoor units operating in FAN mode]

Turn off the indoor fan and display “HEATING STANDBY

” on the remote controller.

[Non-operational indoor units]

Keep the indoor fan turned off.

(3) Terminate the recovery operation depending on the TC2

temperature reading. The timing of termination is determined by each indoor unit.

Remarks

• Recovery operation normally takes place roughly every 2 hours.

• The opening position of the indoor PMV depending on the type and capacity of the indoor unit.

• Recovery operation normally takes place roughly every hour.

• The opening position of the indoor PMV depending on the type and capacity of the indoor unit.

Short intermittent operation compensation control

Elimination of remaining heat

Flap control

(1) For 5 minutes after the operation has started, the operation

is continued even if entering thermostat-OFF condition.

(2) However, Cooling/Heating exchange and the system

protective control precede and thermostat is OFF.

(1) When the air conditioner stops in the “HEAT” mode, drive

the indoor fan with “LOW” mode for approx. 30 seconds.

(1) Flap position setup (Wired type)

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

In cooling/dry operation In heating/fan operation

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

(2) Swing setup

• The swinging position can be moved in the following operation range.

All modes

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

(3) Fix set up (Wireless type)

Keep pressing or pressing briefly the FIX button to move the flap in the desired direction.

Operating angle of flap will be different during cooling, dry

and heating operation. (4) When the unit stops, the flap automatically closes. (5) While the heating operation is ready, the flap automatically

moves upward.

Page 21

No.

Item

Outline of specifications

Remarks

Filter sign display (None in wireless type)

∗ Provided in the

separately laid type TCB-AX21E2.

14 Operation standby

Heating standby

(1) The operation time of the indoor fan is integrated and

stored in memory, and the filter exchange signal is sent to the remote controller to display on the remote controller LCD after the specified time. (150H)

(2) When the filter reset signal is received form the remote

controller, time of the integrated timer is cleared. In this time, if the specified time has passed, the measured time is reset and LCD display disappears.

<Operation standby> .. Displayed on wired remote controller (1) When any of the DN codes listed below is displayed

• “P05” - Detection of an open phase in the power supply wiring

• “P10” - Detection of indoor flooding in at least one indoor unit

• “L30” - Detection of an interlock alarm in at least one indoor unit

(2) Forced thermo OFF

• “COOL/DRY” operation is unavailable because at least one indoor unit is operating in “HEAT” mode.

• “HEAT” operation is unavailable because at least one indoor unit is operating in “COOL/DRY” mode under priority cooling setting (bit 1 of SW11 on outdoor I/F P.C. board ON).

(3) All indoor units not able to engage in any of the above

operations stand by in thermo OFF state.

(4) The indoor fan has been turned off because the

system is engaged in a heat refrigerant (oil) recovery operation.

• “OPERATION STANDBY ” displayed

No display provided on wireless remote controller

15 Selection of central

control mode

Operation via

TCC-Link

central

control

Individual

Central 1

Central 2

Central 3

Central 4

Start/stop

selection

× ×

¡ ¡

<Heating standby> ...... Displayed on wired remote controller

(1) Normal thermo OFF

• During heating, the indoor unit goes thermo OFF as the heating temperature setting is reached.

(2) During heating, the fan rotates at a breeze speed

(UL or lower) or remains stationary to prevent cold air from being discharged (including defrosting operation).

(3) Forced thermo OFF

• “HEAT” operation is unavailable because at least one indoor unit is operating in “COOL/DRY” mode under priority cooling setting (bit 1 of SW11 on outdoor I/F P.C. board ON).

(1) The range of operations that can be performed via an

indoor unit remote controller can be determined through the setting of the central controller.

(2) Setting details

TCC-Link central control

Operation via RBC-AMT32E

Operation

mode

selection

¡ ¡

× × ×

Timer

setting

× ×

¡ ¡

Temperature

setting

¡ ¡

× ×

Fan

speed

setting

¡ ¡ ¡ ¡ ¡

Air flow

direction

setting

¡ ¡ ¡ ¡ ¡

RBC-

AMT32E

display

“CENTRAL CONTROL IN PROGRESS”

• “HEATING STANDBY displayed

• In the case of a wired

remote controller, “CENTRAL CONTROL IN PROGRESS displayed (lit up) while in central control mode.

• The display blinks when a

control function inaccessible to a remote controller is chosen.

• A wireless remote

controller has the same set of control functions, although there is no display. When a control operation is performed via a wireless remote controller while in central control mode, a peep sound alert (5 times) is provided.

” is

”

Page 22

No.

Hi POWER operation (Wireless remote control specific operations)

ECO timer operation (Wireless remote control specific operations)

Item

Outline of specifications

When you press the Hi POWER button during cooling, heating or A operation, the air conditioner will start the following operation.

• Cooling operation

Performs the cooling operation at 1°C lower than the setting temperature. Only when the fan speed before the Hi POWER operation is not high, the fan speed will be increased.

• Heating operation

Performs the heating operation at 2°C higher than the setting temperature. Only when the fan speed before the Hi POWER operation is not high, the fan speed will be increased.

When you press the ECO button during cooling, heating or A operation, the air conditioner will start the following operation.

The fan speed display will indicate AUTO and low speed will be used.

• Cooling operation

In the operation suppression zone, where capacity is kept to the minimum, overcooling is prevented by raising the temperature setting by 1°C after 1 hour and by 2°C after 2 hours of operation.

The room temperature is thus regulated between the operation suppression zone and the set temperature.

Remarks

• Heating operation

In the operation suppression zone, where capacity is kept to the minimum, overheating is prevented by lowering the temperature setting by 1°C after 1 hour and by 2°C after 2 hours of operation.

The room temperature is thus regulated between the set temperature and the operation suppression zone.

Operation suppression zone

1˚C

1 hour

2 hours

Operation starts

Set temperature

1˚C

1 hour

Operation starts

2 hours

2˚C

Set temperature

2˚C

Operation suppression zone

Page 23

No.

SAVE

MEMORY operation

Item

Outline of specifications

Start the air conditioner in the operation mode which you want the remote control to memorize.

(1) Press this button briefly to standby memorizing the

setting. All the icons currently displayed except for the clock

display and mark flashes.

Remarks

PRESET operation

(2) Press and hold the MEMO button for more than 3

seconds while the display flashes. The mark is indicated and the setting is memorized.

• If you do not press the MEMO button within 3 seconds or if you press another button, the MEMORY setting is cancelled.

• Operation modes which can be memorized with the MEMO button are MODE, Temperature, FAN, TIMER and Hi POWER.

To operate the air conditioner with the setting memorized by the MEMO button.

(1) Press the PRESET button. The setting memorized

with the MEMO button will be indicated and the air conditioner operates with regards to the setting.

• The lamp (green) on the display panel of the indoor unit goes on, and operation starts after approximately 3 minutes.

• Initial setting:

MODE : AUTO Temperature : 22

(1) (2)

(1)

START/STOP

FAN MODE

SWING

TIMER

FIX

OFF SET CLR

FILTER

START/STOP

FAN MODE

SWIN

TIMER

FIX

OFF SET CLR

FILTER

ECO

PRESET

AUTO

Hi-POWER

MEMO

CLOCK CHECKRESET

PRESET

AUTO

Hi-POWER

MEMO

CLOCK CHECKRESET

20 DC motor 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 lock was detected, the operation of the indoor unit stops and the error is displayed.

21 Save operation 1) The save operation starts when

button on the

remotecontroller is turned on.

2) While the save operation is performed,

segment

goes on the screen of the wired remote controller.

3) The request capacity ratio is restricted to approx. 75% during save operation.

4) If the save operation was validated, the contents are held during the operation stop, the operation mode change and the resetting of power supply. Therefore the operation at the next time also will be activated with “Save operation is valid”

Check code [P12]

Page 24

6. CONFIGURATION OF CONTROL CIRCUIT

6-1. Indoor Controller Block Diagram

6-1-1. Case of Main (Sub) Remote Controller Connected

Max. 8 units are connectable.

*1 In group connection, mount the

central control remote controller to

group header unit.

*2 Connection of weekly timer to sub

remote controller is unavailable.

Function setup

Key switch

LCD

driver

LCD

Display

Central remote controller

Function setup

Key switch

part

LCD

Wired (Simple)

Display

master remote controller

(Up to 2 sets)

CPU

CN2

Display

CPU

CN1

part

LED

Secondary

DC5V

Powe r

DC5V

Remote

controller

battery

circuit

communication

A B

EEPROM

Remote

controller

communication

DC20V

circuit

DC12V

TC sensor

TA sensor

DC5V

Same

as left

Same

as left

TCJ sensor

CPU

H8/3039

DriverDriver

Outside

output

Remote

A/B setup

controller

BUS

circuit

communication

circuit

signal input

synchronous

Start

Alarm

Ready

Thermostat ON

1 23

FAN

HEAT

COOL

Fan motor

control circuit

unit

Outdoor

unit

Outdoor

L N U1 U2

U1 U2

Outdoor unit

Power supply

1Ø, 220V, 60Hz

1Ø, 220 - 240V, 50Hz

Main P.C. board (MCC-1510)

Indoor unit

(MCC-819)

Sensor display P.C. board

LED

Sensor part

Louver

motor

circuit

Powe r

Indoor

fan motor

DC280V

Page 25

6-1-2. Case of Wireless Remote Controller Kit Connected

Max. 8 units are connectable.

*1 In group connection, mount the

central control remote controller to

group header unit.

A B

EEPROM

circuit

Remote

controller

communication

TC sensor

TA sensor

Same

as left

Same

as left

TCJ sensor

CPU

H8/3039

DriverDriver

Outside

output

Remote

A/B setup

controller

circuit

receive

Serial send/

circuit

signal input

synchronous

Start

Alarm

Ready

Thermostat ON

1 23

FAN

HEAT

COOL

unit

Outdoor

unit

Outdoor

LN U2U1

U1 U2

Outdoor unit

Power supply

1Ø, 220V, 60Hz

1Ø, 220 - 240V, 50Hz

Main P.C. board (MCC-1510)

Indoor unit

DC20V

DC12V

DC5V

(MCC-819)

Sensor display P.C. board

LED

Sensor part

Louver

motor

Fan motor

control circuit

circuit

Powe r

DC280V

Indoor

fan motor

Page 26

6-2. Indoor P.C. Board

MCC-1510

HA (T10) CN61, DC 12V

Option output CN60, DC 12V

CHK CN71, DC 5V

DISP CN72, DC 5V

Outside error input CN80, DC 12V

EXCT CN73, DC 5V

Remote controller power LED D203

TCJ sensor CN102, DC 5V

TC sensor CN101, DC 5V

Microcomputer operation LED D02

EEPROM IC10

Inter-unit wire CN67, AC 200V

Option power supply CN309, AC 200V

Central control CN40, DC ± 5V

TA sensor CN104, DC 5V

Remote controller CN41, DC 20V

Fan drive CN32, DC 12V

Louver CN33, DC 20V

DC fan input/output CN210

Terminator resistor provided/not provided Remote controller A/B switch SW01

Display output/Wireless sensor CN213, DC 5V

Page 27

Wall-Type P.C. Board Optional Switch/Connector Specifications

Function

Terminator resistor provided/Not provided

Remote controller A/B

Fan output CN32

HA CN61

Connector

No.

SW01

Pin No.

OFF: No terminator resistor,

Bit 1

ON: Terminator resistor provided

OFF: Remote controller A

Bit 2

ON: Remote controller B

1 DC12V

2 Output

1 Start/Stop input

2 0V (COM)

3 Handy prohibition input

4 Operation output ON during operation (Answer back of HA)

5 DC12V (COM)

6 Alarm output ON during output of alarm

1 DC12V (COM)

2 Defrost output ON during defrosting of outdoor unit

3 Thermo-ON output ON when Real thermo. ON (Comp. ON)

Specifications Remarks

Setup at shipment OFF: No terminator resistor. Only 1 unit is ON during central control by custom only.

Setup at shipment OFF: Remote controller A

Setup at shipment: Linked operation of ON with operation of indoor unit and OFF with stop

* The setup of single operation by FAN button on remote

controller is executed from remote controller. (DN = 31)

HA Start/Stop input (J01: Provided/Not provided = Pulse (At shipment from factory)/Static input switch)

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

Optional output CN60

Outside error input CN80

CHK

CN71

Operation check

DISP

CN72

Display mode

CN73

Demand

4 Cooling output

5 Heating output

6 Fan output ON when indoor fan is ON

1 DC12V (COM)

2 DC12V (COM)

3 Filter/Option/Outside error input

1 Check mode input

2 0V

1 Display mode input

2 0V

1 Demand input EXCT

2 0V

ON when operation mode is cooling line (Cool, Dry, Cooing/Heating AUTO cooling)

ON when operation mode is heating line (Heat, Cooling/Heating AUTO heating)

At shipment from factory, the error code “L30” generates and optional error input to stop operation forcedly (DN:2A = 1) is controlled (Display of protection for devices attached to outside) by setup of outside error input (DN:2A = 2) for 1 minute.

* Optional error input control is set up on the remote

controller.

This check is used for operation check of indoor unit. (The specified operation such as indoor fan “H”, drain pump ON, etc. is executed without communication with outdoor unit or remote controller.)

Display mode, communication is enabled by indoor unit and remote controller only. (When power supply is turned on.)

Timer short (Usual)

Indoor unit forced thermo-OFF operation

Page 28

ON / OFF

SET

SAVE

6-3. Functions at test run

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 29

u In case of wireless remote controller

REQUIREMENT

1. For the operation procedure, be sure to follow the matter.

2. Finish the forced cooling operation in a short time because it applies excessive strength to the air conditioner.

3. A test operation of forced heating is unavailable. Perform a test operation by heating operation using the switches of the remote controller.

However heating operation may be not carried out according to the temperature conditions.

• Check wiring/piping of indoor and outdoor units

1. Open the front panel.

2. When pushing “TEMPORARY” button for 10 seconds or more, “Pi!” sound is heard and the operation changes to a forced cooling operation. After approx. 3 minutes, a cooling operation starts forcedly. Check cool air starts blowing. If the operation does not start, check wiring again.

3. To stop a test operation, push “TEMPORARY” button once again (Approx. 1 second). The up/down air flow adjusting plate closes and the operation stops.

• Check transmission of remote controller

1. Push “START/STOP” button of the remote controller to check an operation can also start by the remote controller.

• When pushing “TEMPORARY” button once (For 1 second), the operation changes to automatic operation.

For a forced cooling operation, keep the “TEMPORARY” button pushed over 10 seconds.

• “Cooling” operation by the remote controller may be unavailable according to the temperature conditions.

Check wiring/piping of the indoor and outdoor units in forced cooling operation.

TEMPORARY button

Page 30

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-1510.

Page 31

7. APPLIED CONTROL

SET

STRESET

LOUVER

7-1. 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.

N / OF

TIMER SE

WING/FI

MOD

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.

33 ”, change the temperature indication of the unit

5 Push

6 Pushing

(When selecting the CODE No. (DN) to “ from “ °C ” to “ °F ” on the remote controller.)

button. (OK if display goes on.)

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

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

TEST

button returns the status to normal stop status.

Page 32

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

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])

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

Type

Indoor unit capacity

Line address

Indoor unit address

Group address

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

0008 : High Wall

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 : 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

Depending on model type

According to capacity type

0099 : Unfixed

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 33

CODE No.

[DN]

Item

Description

At shipment

Timer setup (Wired remote controller)

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

TYPE

CODE No. [10]

Setup data

∗1 008

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

Type

High Wall

Abbreviated Model name

MMK-AP XXX H

Indoor unit capacity

0000 : Available

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 34

7-2. 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 35

n Ventilating fan control from wired remote controller

[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 31 . 4 Using the timer time or button, select the setup data. (At shipment: 0000 )

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 36

n Leaving-ON prevention control (with Wired remote controller)

[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. 2E . 3 Using the timer time or button, set 0001 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

(2P plug: RED)

Indoor control P.C. board

EXCT

Relay (procured locally)

121

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

Relay coil signal

Page 37

n Address setup (Manual setting from Wired remote controller)

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 12 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 13 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 14 to the CODE No.

9 Using timer time / buttons,

0000 to Individual, 0001 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.)

0002 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

Indoor Indoor Indoor Indoor Indoor

1 2 2

Header unit

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

TEMP.

TIMER SET

FILTER

SET

TEST

RESET

TIME

FAN

SAVE

SWING/FIX

1 3 2

Follower

unit

In case of group control

ON / OFF

MODE

VENT

UNIT LOUVER

2 1 2

2 2 2

3, 6, 9

4, 7, 10

1 2 3 4 5 6 7 8 9 10 11

Note 1)

When setting the line address from the wired 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 wired 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.)

END

Page 38

n Confirmation of indoor unit No. position

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).

TIMER SE

TESTRESE

WING/FI

N / OF

MOD

Operation

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.

TIMER SE

END

WING/FI

1 2

TESTRESE

1 2 3

N / OF

MOD

END

Page 39

n Function selection setup

LOUVER

<Procedure> Perform setting while the air conditioner stops.

TEST

1 Push

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

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

+ CL buttons simultaneously for 4 seconds or more.

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.

N / OF

3 6

TIMER SE

TESTRESE

WING/FI

MOD

4 5

1 2 3 4 5 6

END

Page 40

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

LOUVER

<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.

AC (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.

TIMER SE

TESTRESE

WING/FI

N / OF

MOD

1 2 3 4 5 6

END

Page 41

LOUVER

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

(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.

AC (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.

N / OF

TIMER SE

TESTRESE

WING/FI

MOD

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

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.

N / OF

Finish

TIMER SE

TESTRESE

MOD

WING/FI

When you want to complete the setting

4 6

1 2 3 4 5 6 7 8

END

Page 42

n Function to clear error

LOUVER

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 “0005 ”

0002 ”

“ When “

→→

→ “0001 ”

→→

0000 ” appear, the error was cleared.

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

4 When pushing

→→

→ “0000 ” with 5-seconds interval.

→→

TEST

button, the status becomes normal.

TIMER SE

TESTRESE

WING/FI

N / OF

MOD

→→

→ “0004 ”

→→

→ “0003 ”

→→

→

→→

1 2 3 4

Returns to normal status

¤ How to clear error of indoor unit

The error of indoor unit is cleared by

ON / OFF

button of the wired remote controller.

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

Page 43

n Monitoring function of wired remote controller switch

LOUVER

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

Calling of display

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

00 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

N / OF

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

button to return the status to the

normal display.

4 1

1 2 3 4

TIMER SE

TESTRESE

Returns to normal display

WING/FI

MOD

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 data

System 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

Data name

Unit

°C

pls

unit

Display

form

× 1

× 1/10

× 100

× 1

× 10

CODE

Individual outdoor unit data (Note 3, 4)

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

the header indoor unit is displayed.

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

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

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

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)

PMV1 + 2 opening degree

Compressor 1, 2 ON/OFF

Outdoor fan mode

Outdoor unit HP

Data name

(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)

Unit

°C

MPa

°C

pls

—

Display

form

× 1

× 100

× 1

× 10

× 1/10

(Note 2)

0 to 31

× 1

Page 44

8. TROUBLESHOOTING

8-1. 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 45

A (Alternate) : Flashing condition is alternate when there are two flashing LED.

S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

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

Description

No communication from remote controller and network adapter

(No central control system communication also)

Main defective position

Regular communication error between indoor

and remote controller

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.

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

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.)

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

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)

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

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.

Indoor overflow was detected.

Indoor DC fan error

Other indoor unit error

8-2. 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.

Flash

Ready

Timer

Block display (∗)

Sensor lamp display

Operation

Auxiliary code

Outdoor 7-segment

Check code display

TCC-LINK central

• 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.]

& remote controller

¥ ll

——

E03

¥ ll

¥¥lA¥¥lA¥¥lA¥¥lA¥¥lA¥¥lS¥ l ¥S¥ l ¥S¥ l ¥S¥ l ¥S¥

——

F01

F02

F03

E04

E08 Duplicated indoor unit No.

E08

E10

E18

——

L03

F29

L07

F10

F11

l ¥¥

——

L08 —

L08

L09

——

L30 Detected indoor unit No.

L20

L30

P01

l ¥¥

¥ l ¥

——

P10 Detected indoor unit No.

P10

P12

P31

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

Page 46

A (Alternate) : Flashing condition is alternate when there are two flashing LED.

S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

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

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

] details is displayed together with unit No.)

∗∗∗

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, [

Main defective position

No remote controller header unit, remote controller

Flash

Ready

Timer

Block display (∗)

Sensor lamp display

Check code display

¥ ll

Operation

Auxiliary code

Outdoor 7-segment

——

communication (receive) error

Remote controller communication (send) error

Duplicated remote controller header

¥ ll

——

Main defective position

Central control system communication (send) error

Flash

Ready

Timer

Block display (∗)

Sensor lamp display

Operation

Auxiliary code

Outdoor 7-segment

——

Check code display

Central control system communication (receive) error

There are multiple network adapters.

Batched alarm of interface for general-purpose equipment control

Group follower unit error

—

(In shared use

Is not displayed

of remote controller)

——

(Abovementioned)

According to unit with alarm

——

E01

E02

E09

[Remote controller detects error.]

Remote controller

[Central controller detects error.]

C05

TCC-LINK central

C06

—

C12

P30

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

Page 47

A (Alternate) : Flashing condition is alternate when there are two flashing LED.

S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

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

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.

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.

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. 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

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

IPDU communication error

—

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.

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

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.).

Outdoor discharge temp. sensor (TD3) error

Low pressure (Ps) sensor error

High pressure (Pd) sensor error

Outdoor EEPROM error

Timer Ready Flash

Block display

Sensor lamp display

Check code display

ll¥

Operation

E06

(E04)

remote controllers

TCC-LINK central &

Auxiliary code

Outdoor 7-segment

No. of indoor units which received signal

normally

¥ ll

(E08)

ll¥

¥ ll

E12

E15

E16

01: Indoor/Outdoor communication

02: Communication between Outdoor units

00: Capacity over

ll¥

E19

E20

E21

E22

E23

01 ~ : No. of connected units

00: No center outdoor unit

02: 2 or more center outdoor units

01: Connected to outdoor of other line

02: Connected to indoor of other line

00: Duplicated header units

02: No header unit

ll¥

E25

E26

E28

FAN

IPDU

¡¡

A3-IPDU

123

FAN

IPDU

A3-IPDU

123

E31

¡¡

¡¡ ¡

¡¡¡

¡¡

¡¡ ¡

¡¡¡ ¡

mark:

Error position.

¡¡

¡¡¡

—

¥¥¡A¥¥¡A¥¥¡A¥¥¡A¥¥¡

F04

F05

F06

F07

F08

F11

¡¡

01: TE1

02: TE2

¥¥¡A¥¥¡A¥¥¡A¥¥¡A¥¥¡A¥¥¡A¥¥¡

F12

F15

F16

F22

F23

F24

F31

E07 —

Check code display list (Outdoor unit)

[SMMS-i interface detects error: Main example]

E06

E08 Duplicated indoor unit number

E12

F04 —

F05 —

F06

F07 —

F08 —

F11 —

F12 —

F15 —

F16 —

F22 —

F23 —

F24 —

E15 —

E16

E19

E20

E21

E22 —

E23 —

E25 —

E26 Receive error of outdoor address

E28 Detected outdoor unit number

E31

F31 —

Page 48

A (Alternate) : Flashing condition is alternate when there are two flashing LED.

S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

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

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.

Main defective position

Outdoor discharge temp. sensor (TD1)

miswiring

Outdoor discharge temp. sensor (TD2)

miswiring

Outdoor discharge temp. sensor (TD3)

miswiring

Protection by low pressure (Ps) sensor was detected.

Protection detection by temp. sensor (TK1 to 5) for oil level detection.

Low pressure protective operation

Protection for oil level drop

Oil level detection temp. sensor

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) error

Detection circuit error

(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.)

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

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

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

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

IPDU quantity error

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.

Outside error input in indoor (Interlock)

Outdoor unit discharge (TD1) temp. error

Open phase shortage: Power failure error

Inverter DC voltage (Vdc) error

Timer Ready Flash

Block display

Sensor lamp display

Check code display

l ¥ l

Operation

H05

H15

remote controllers

TCC-LINK central &

Auxiliary code

Outdoor 7-segment

l ¥ l

H25

H06

H07

H08

01: TK1 sensor error

02: TK2 sensor error

04: TK4 sensor error

¥¡¥S¥ l ¥S¥ l ¥S¥ l ¥S¥¡¥S¥¡¥S¥¡¥S¥¡¥S¥¡¥S¥¡¥

L04

H16

05: TK5 sensor error

01: TK1 Oil circuit system error

02: TK2 Oil circuit system error

04: TK4 Oil circuit system error

L05

05: TK5 Oil circuit system error

No. of preceded indoor units

¥¡¥

L06

L08

L10

L17

L18

L26

L27

L28

FAN

IPDU

A3-IPDU

123

FAN

IPDU

A3-IPDU

123

([L05/L06] by individual display)

L29

¡¡

¡¡ ¡

¡¡¡

¡¡

¡¡¡ ¡

¡¡

¡¡¡

¥¡¥S¥

P03

(L30)

mark:

Error position.

¡¡

P05

00: Open phase shortage detection

01: Compressor 1 side

¥ l ¥

02: Compressor 2 side

03: Compressor 3 side

L04 —

L06

L08 —

L10 —

L17 —

L18 —

L26 No. of connected heat units

L27 No. of connected heat units

H05 —

H15 —

H25 —

H06 —

H07 —

H08 03: TK3 sensor error

H16 03: TK3 Oil circuit system error

L28 —

L29

L30 Detection of indoor unit number

P03 —

P05

Page 49

A (Alternate) : Flashing condition is alternate when there are two flashing LED.

S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

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

Description

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

Main defective position

Heat sink overheat error

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.

Heat unit water-shortage error

There is indoor unit which overflow was detected.

Outdoor liquid back detection error

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.)

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)

Timer Ready Flash

Block display

Sensor lamp display

Operation

P07

remote controllers

TCC-LINK central &

Check code display

Auxiliary code

Outdoor 7-segment

01: Compressor 1 side

P07 02: Compressor 2 side

l ¥¥

03: Compressor 3 side

l ¥¥

(P09)

(P10)

P09 Detection of heat unit number

P10 Detection of indoor unit number

¥¥

P13

P13 —

¥ l ¥A¥

P15

P17

01: TS condition

02: TD condition

P15

P17 —

P18

P18 —

P19

P19 Detection of outdoor unit number

P20

P20 —

¥ l ¥

P24

P24 Detection of heat unit number

Page 50

A (Alternate) : Flashing condition is alternate when there are two flashing LED.

S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.

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

Description

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

Main defective position

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

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

Compressor break down

Compressor lock was detected.

Abnormal current was detected during stop of compressor.

High pressure SW operated.

Compressor error (Lock)

Current detection circuit error

High pressure SW system operation

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

Heat sink overheat error

IPDU for outdoor fan detected each error.

IPDU for outdoor fan error

Short-circuit protective operation (Instantaneous over-current) of

compressor motor driving circuit element operated.

Position detection error of compressor motor was detected.

G-Tr (IGBT) short-circuit protection error

Compressor position detection circuit system error

Timer Ready Flash

Block display

Sensor lamp display

Operation

F13

remote controllers

TCC-LINK central &

Check code display

Auxiliary code

Outdoor 7-segment

01: Compressor 1 side

¥¥¡

H01

03: Compressor 3 side

01: Compressor 1 side

03: Compressor 3 side

01: Compressor 1 side

H02

H03

03: Compressor 3 side

01: Compressor 1 side

03: Compressor 3 side

P04

P07

01: Compressor 1 side

03: Compressor 3 side

01: Compressor 1 side

03: Compressor 3 side

P22

but ignore it.

0∗: IGBT circuit

1∗: Position detection circuit error

3∗: Motor lock error

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

E∗: Inverter DC voltage error (Outdoor fan)

01: Compressor 1 side

4∗: Motor current detection

D∗: TH sensor error

P26

P29

03: Compressor 3 side

01: Compressor 1 side

03: Compressor 3 side

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

Check code display list (Outdoor unit)

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

F13 02: Compressor 2 side

H01 02: Compressor 2 side

H02 02: Compressor 2 side

P04 02: Compressor 2 side

H03 02: Compressor 2 side

P07 02: Compressor 2 side

P22 C∗: TH sensor error

P26 02: Compressor 2 side

P29 02: Compressor 2 side

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

Page 51

8-3. Troubleshooting by Check Display on Wired Remote Controller

STRESET

LOUVER

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

N / OF

TIMER SE

WING/FI

MOD

TEST

button to return to the usual display.

After confirmation, push

How to read the check monitor display

<7-segment display>

8 9AbCdEFHJLP76543210

Page 52

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 53

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 “8-2 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 54

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 55

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 56

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.

Error detection condition

Communication interrupted between indoor

P.C. board and remote controller.

Status

Corresponding

unit only stops.

(When two remote controllers operate)

• Check remote controller address setup.

Exchange remote controller.

• Check remote controller P.C. board.

• Check the communication wire of remote controller:

• Check remote controller and communication adapter wiring.

Signal could not be sent from remote

controller to indoor unit.

No communication from remote controller

Corresponding

unit only stops.

(including wireless) and communication

adapter.

unit only stops.

• Check power-ON order of indoor/outdoor.

• Check indoor address setup.

• Check inter-unit cabling between indoor and outdoor.

Indoor unit does not receive communication

from outdoor unit.

Corresponding

unit only stops.

• 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.

When signal is not sent for a certain period

from the indoor unit which has been used to

send signals.

All stop

Transmission from outdoor to indoor cannot

continue for 30 seconds.

Multiple indoor unit address setup are

All stop

after setup of indoor address.

• Check the change of remote controller connection (Group / individual)

• Check remote controller setup.

• Check remote controller P.C. board.

• Indoor P.C. board failure

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

Corresponding

unit only stops.

Corresponding

unit only stops.

connection with other refrigerant circuit system.

• Setup the address again after disconnecting communication

When indoor automatic address started,

other refrigerant circuit system was setting

communication.

•

All stop

automatic address.

indoor automatic address was executed.

• When outdoor automatic address started,

Check code name

Communication error between

indoor and remote controller

(Detected at remote controller

side)

Remote

position

Detected

Check code

Outdoor 7-segment display

(7-Segment Display of Interface)

Wired

8-4. Check Code and Check Position Displayed on the Remote Controller and Outdoor Unit

controller

——

Check code Auxiliary code

E01

remote

controller

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

unit

Indoor

Remote

controller

——

E02

E03

unit

Indoor

——

E04

I/F

which received

signal normally

E06 No. of indoor units

E06

Indoor/outdoor communication

circuit error

(Detected at outdoor side)

Duplicated indoor addresses

I/F

E07 —

—

I/F

Indoor

addresses

E08 Duplicated indoor

E08

Duplicated master remote

controllers

Communication error between

indoor P.C. board assembly

Automatic address start error

I/F

unit

Remote

——

E09

Indoor

controller

communication

02: Between outdoors

——

E12 01: Indoor/outdoor

E10

E12

communication

Page 57

Check item (position)

• 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.

Error detection condition

Indoor unit is not found when indoor

automatic address start was set up.

Status

All stop

Check code name

No corresponding

indoor unit during

automatic address

I/F

position

Detected

exceeded 135% of total outdoor

capacity.

• Total capacity of indoor units

All stop

No. of connected

I/F

are more than 48 units.

• No. of connected indoor units

[Note]

If this code appears after backup

indoor units /

Capacity over

setup of outdoor unit trouble, set up

“No. capacity-over detection”.

<Setup method of

“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

Corresponding

unit only stops.

Communication error

between indoor header

and follower units

unit

Indoor

outdoor units in 1 line.

unit in 1 line.

• There are multiple header

• There is none of header outdoor

Unit of other line was connected

when indoor automatic address

started.

Transmission of other outdoor unit

All stop

Header outdoor unit

quantity error

I/F

All stop

Other line unit

connected during

automatic address

Communication

I/F

was unavailable for 30 seconds or

more.

sending error between

outdoor units

Outdoor addresses manually set

All stop

Duplicated outdoor

I/F

up are duplicated.

The signal was not returned for

constant from the outdoor unit

which was receiving signal.

All stop

follower address setup

Decreased number of

connected outdoor

units

I/F

Outdoor header unit received error

code from outdoor follower unit.

All stop

Outdoor follower unit

error

I/F

Check code

Outdoor 7-segment display

Wired

remote

Check code Auxiliary code

controller

E15 —

E15

01 to: No. of connected units

E16 00: Capacity over

E16

02: Two or more header units

——

E18

E19 00: No header unit

E19

02: Connection of indoor of other line

E20 01: Connection of outdoor of other line

E20

E23 —

E23

E25 —

E25

E26 No. of normally received outdoor units

E26

E28 No. of detected outdoor units

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.

E28

If pushing SW04 and SW05 simultaneously, the fan of normal outdoor unit operates. When pushing SW05 singly, the operation of fan is cleared.

Page 58

Check item (position)

disconnection between IPDU and I/F P.C. board.

• Check connection of communication connector and

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

• Check external noise.

Error detection condition

Communication of each IPDU

(P.C. board) in inverter box

interrupted.

Status

All stop

Check code name

IPDU communication error

• 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.

infinite or zero. (Open/Short)

• Resistance value of sensor is

Corresponding

unit only stops.

Indoor TCJ sensor error

infinite or zero (Open/Short).

• Resistance value of sensor is

Corresponding

unit only stops.

Indoor TC2 sensor error

• Check indoor P.C. board error.

• Check connection/cabling of TC1 sensor connector.

• Check characteristics of TC1 sensor resistance value.

infinite or zero (Open/Short).

• Resistance value of sensor is

Corresponding

unit only stops.

Indoor TC1 sensor error

• Check indoor P.C. board error.

• Check connection of TD1 sensor connector.

• Check characteristics of TD1 sensor resistance value.

infinite or zero (Open/Short)

• Resistance value of sensor is

All stop

TD1 sensor error

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

• Check connection of TD2 sensor connector.

• Check characteristics of TD2 sensor resistance value.

infinite or zero (Open/Short)

• Resistance value of sensor is

All stop

TD2 sensor error

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

• Check connection of TE1, TE2 sensor connector.

• Check characteristics of TE1, TE2 sensor resistance value.

infinite or zero (Open/Short).

• Resistance value of sensor is

All stop

TE1, TE2 sensor error

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

• Check connection of TL sensor connector.

• Check characteristics of TL sensor resistance value.

infinite or zero (Open/Short).

• Resistance value of sensor is

All stop

TL sensor error

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

• Check connection of TO sensor connector.

• Check characteristics of TO sensor resistance value.

infinite or zero (Open/Short).

• Resistance value of sensor is

All stop

TO sensor error

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

• Check connection/cabling of TA sensor connector.

• Check characteristics of TA sensor resistance value.

infinite or zero (Open/Short).

• Resistance value of sensor is

Corresponding

unit only stops.

Indoor TA sensor error

• Check indoor P.C. board error.

• Check connection of TS1 sensor connector.

• Check characteristics of TS1 sensor resistance value.

infinite or zero (Open/Short).

• Resistance value of sensor is

All stop

TS1 sensor error

→ Exchange Comp. IPDU P.C. board.

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

• IGBT built-in temp sensor error

infinite or zero (Open/Short).

• Resistance value of sensor is

All stop

TH sensor error

Detected

Check code

position

Outdoor 7-segment display

Check code Auxiliary code

Wired

remote

controller

I/F

FAN

IPDU

A-3-IPDU

123

FAN

IPDU

A-3-IPDU

123

01 ¡ 0A ¡¡

E31

02 ¡ 0B ¡¡ ¡

03 ¡¡ 0C ¡¡

04 ¡ 0D ¡¡¡

05 ¡¡ 0E ¡¡ ¡

Indoor unit

mark:

Error position.

06 ¡¡ 0F ¡¡¡ ¡

07 ¡¡¡

08 ¡

09 ¡¡

——

F01

Indoor unit

I/F

Indoor unit

I/F

02: TE2 sensor error

——

F02

——

F03

F04 —

F04

F05 —

F05

F06 01: TE1 sensor error

F06

F07 —

F07

I/F

F08 —

F08

Indoor

——

F10

I/F

F12 —

F12

IPDU

02: Compressor 2 side

03: Compressor 3 side

F13 01: Compressor 1 side

F13

Page 59

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.

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.

Status

All stop

Check code name

Outdoor temp sensor

miscabling (TE1, TL)

• 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).

High-pressure Pd sensor and low-pressure

Ps sensor were exchanged, or output

voltages of both sensors are zero.

All stop

Outdoor pressure sensor

miscabling (Pd, Ps)

Sensor resistance value is infinite or 0

(Open/Short)

All stop

TD3 sensor error

• 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%).

Output voltage of Ps sensor was zero.

All stop

Ps sensor error

Output voltage of Pd sensor was zero.

(Sensor Open)

Pd > 4.15MPa during stop of compressor

Indoor P.C. board did not operate normally.

All stop

Corresponding

unit only stops.

Pd sensor error

Indoor other error

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

normally.

(∗1)

All stop

Outdoor EEPROM error

Inverter current detection circuit detected

All stop

Compressor breakdown

• 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.

over-current and stopped.

Over-current was detected several seconds

after header compressor had started.

All stop

Compressor error (lock)

(Check activation error due to liquid stagnation in compressor.)

• Check conduction of case heater.

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

• Check cabling of current detection circuit system.

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

While header compressor stopped, current

flowed more than the specified current and

was detected.

All stop

Current detection circuit

system error

Detected

Check code

position

Outdoor 7-segment display

Check code Auxiliary code

Wired

remote

controller

I/F

F15 —

F15

I/F

F16 —

F16

I/F

F22 —

F22

I/F

F23 —

F23

I/F

F24 —

F24

I/F

Indoor

——

F31 —

F29

F31

IPDU

02: Compressor 2 side

H01 01: Compressor 1 side

H01

IPDU

03: Compressor 3 side

02: Compressor 2 side

H02 01: Compressor 1 side

H02

03: Compressor 3 side

IPDU

02: Compressor 2 side

03: Compressor 3 side

H03 01: Compressor 1 side

H03

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

Page 60

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.

Error detection condition

Compressor 1 case thermostat performed

protective operation.

Status

All stop

Check code name

Compressor 1 case

thermo operation

• 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.

While compressor 1 is operating, the discharge

temp. (TD1) does not rise up.

All stop

Outdoor unit discharge

temp. sensor (TD1)

miswiring

(Discharge gas, suction gas and liquid side)

• Check characteristics of TD1 sensor resistance value.

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

• Check full opening of service valve.

• Check outdoor PMV clogging. (PMV1, 2)

• Check SV2 circuit and SV4 circuit error.

Low-pressure Ps detected operation lower than

0.02MPa.

All stop

Low-pressure protective

operation

• Check low-pressure Ps sensor error.

• Check indoor air filter clogging.

(All heating, mainly heating, part cooling operation)

• Check valve open of indoor PMV.

• Check refrigerant pipe clogging.

• Check outdoor fan 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.

The operating compressor detected oil shortage

continuously for 2 hours.

All stop

Protection for oil level

drop detection

• 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.

(Open/Short)

• Resistance value of sensor is infinite or zero.

All stop

Oil level detective temp

sensor error

(Open/Short)

• Resistance value of sensor is infinite or zero.

All stop

(Open/Short)

• Resistance value of sensor is infinite or zero.

All stop

(Open/Short)

• Resistance value of sensor is infinite or zero.

All stop

(Open/Short)

• Resistance value of sensor is infinite or zero.

All stop

Detected

Check code

Outdoor 7-segment display

Wired

position

Check code Auxiliary code

remote

controller

I/F

H04 —

H04

I/F

H05 —

H05

I/F

H06 —

H06

I/F

H07 —

H07

I/F

02: TK2 sensor error

03: TK3 sensor error

04: TK4 sensor error

05: TK5 sensor error

H08 01: TK1 sensor error

H08

Page 61

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.

Error detection condition

While compressor 2 is operating,

the discharge temp. (TD2) does

not rise up.

Status

All stop

Check code name

Outdoor unit discharge

temp. sensor (TD2)

miswiring

I/F

position

Detected

• 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.

Temperature change of TK1 could

not be detected though

compressor 1 started the

operation.

All stop

Oil level detective

circuit system error

I/F

• Check TK2 sensor coming-off.

Temperature change of TK2 could

Check capillary clogging of oil equalization circuit and check stop valve operation.

• Check characteristics of TK2 sensor resistance value.

• Check TK1, TK2, TK3, TK4 and TK5 misconnection.

• Check SV3E, SV3F 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.

not be detected though compressor

2 started the operation.

Temperature change of TK3 could

not be detected though compressor

started the 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.

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

• 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.

not be detected though compres-

sor 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

All stop

Corresponding

Outdoor unit discharge

temp. sensor (TD3)

miswiring

Duplicated indoor

I/F

Indoor

(Group/individual) after indoor address setup.

• Check the change of remote controller connection

• Check line address.

group.

Line address setup is duplicated

against the outdoor unit in different

refrigerant pipe system.

All stop

unit only stops.

center units

Duplicated outdoor

line address

I/F

Check code

Outdoor 7-segment display

Wired

remote

Check code Auxiliary code

controller

H15 —

H15

02: TK2 oil circuit system error

03: TK3 oil circuit system error

04: TK4 oil circuit system error

05: TK5 oil circuit system error

H16 01: TK1 oil circuit system error

H16

H25 —

H25

——

L03

L04 —

L04

Page 62

Check item (position)

• Check display of indoor unit with priority.

unit.

• Check display of indoor unit with priority and outdoor

• Check indoor address.

1) Check outside device error.

2) Check indoor P.C. board error.

(In case of TCC-Link)

• 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.

(Max. 4 units per 1 system)

• Check network adaptor P.C. board.

• Check No. of connected outdoor units.

• 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 indoor P.C. board error.

n Outside device is not connected to connector (CN80):

Check indoor (I/F) P.C. board.

Error detection condition

Indoor units with priority were

duplicated.

Indoor units with priority were

duplicated.

Status

All stop

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

I/F

position

Detected

I/F

At least one indoor unit

connected to a group existed in

the individual indoor units.

Address was not yet set up.

Corresponding

indoor unit with priority)

Group line in individual indoor unit.

Indoor

Corresponding

unit only stops.

Indoor group / address unset

Indoor

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

All stop

Corresponding

unit only stops.

Indoor capacity unset

Outdoor capacity unset

Duplicated central control addresses

I/F

Indoor

TCC-Link

addresses

There were more than four

outdoor units.

All stop

Quantity over of connected outdoor

units

I/F

Indoor

No. of IPDU units detected

when power was turned on

were less.

All stop

IPDU quantity error

I/F

FAN

IPDU

A-3-IPDU

123

Detected signal to (CN80) for

more 1 minute

• Outside error input terminal

Corresponding

unit only stops.

Interlock in indoor unit from outside

Indoor

mark:

Error position.

P.C. board (I/F) parts error

Operation

continues.

Extended IC (Integrated Circuit) error

I/F

Check code

Outdoor 7-segment display

——

L06 No. of indoor units with priority

L08 —

Check code Auxiliary code

L05

L06

Wired

remote

L07

controller

L08

FAN

IPDU

A-3-IPDU

123

01 ¡ 0A ¡¡

02 ¡ 0B ¡¡ ¡

03 ¡¡ 0C ¡¡

04 ¡ 0D ¡¡¡

——

L09

——

L10 —

L10

L20

L28 —

L28

L29

05 ¡¡ 0E ¡¡ ¡

06 ¡¡ 0F ¡¡ ¡ ¡

07 ¡¡¡

08 ¡

09 ¡¡

L30 Detected indoor address

L30

L31 —

—

Page 63

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)

115°C.

Error detection condition

Discharge temp (TD1) exceeded

Status

Check code name

All stop

Corresponding

unit only stops.

Indoor fan motor error

Discharge temp TD1 error

• 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.

High-pressure SW actuated.

All stop

Actuation of high-pressure

• 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.

power turned on.

detected in inverter DC voltage

• Open phase was detected when the

• Overvoltage/Volt shortage was

All stop

Open phase shortage/phase

sequence detection

Inverter DC voltage (Vdc)

• Check power voltage.

IGBT built-in temp sensor (TH) was

All stop

error (Compressor)

Heat sink overheat error

(Check screwing and contact.)

• Check outdoor fan system error.

• Check clogging of heat sink cooling duct.

• Check fixation between IGBT and heat sink.

overheated.

• 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.

the connector came off.

• Float switch operated.

• Float switch circuit disconnected or

All stop

Indoor overflow error

from target value was detected for

certain time.

• The value of motor speed deviated

Corresponding

unit only stops.

Indoor fan motor error

• Check influence of outside air control.

• Over-current protection operated.

Detected

Check code

I/F

Indoor

position

——

Outdoor 7-segment display

Wired

remote

Check code Auxiliary code

controller

P01

P03 —

P03

I/F

02: Compressor 2 side

03: Compressor 3 side

P04 01: Compressor 1 side

P04

I/F

01: Compressor 1

02: Compressor 2

P05 00:

P05

I/F

IPDU

03: Compressor 3

02: Compressor 2 side

03: Compressor 3 side

P07 01: Compressor 1 side

P07

Indoor

trouble

P10 Indoor address with

P10

Indoor

——

P12

Page 64

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.

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

• 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).

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

• 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).

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

• 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.

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

• Check characteristics of Pd, Ps pressure sensor output voltage.

• Check misconnection of TE1 and TL sensors.

• Check Pd pressure sensor error.

Pd sensor detected 3.6MPa or more.

• 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.

Status

Check code name

position

Detected

Check code

Outdoor 7-segment display

Wired

remote

All stop

Outdoor liquid back

I/F

P13 —

Check code Auxiliary code

P13

controller

detection error

All stop

Gas leak detection

(TS1 condition)

I/F

P15 01: TS condition

P15

All stop

Gas leak detection

(TD condition)

I/F

02: TD condition

All stop

Discharge temp

TD2 error

I/F

P17 —

P17

All stop

Discharge temp.

TD3 error

I/F

P18 —

P18

All stop

4-way valve

operation error

I/F

unit No.

P19 Detected outdoor

P19

All stop

High-pressure

I/F

P20 —

P20

protective operation

Page 65

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 detection condition

(Auxiliary code: 08)

Fan IPDU position detection circuit

Position detection was not normally performed.

(Auxiliary code: 0A)

Status

All stop

• Error check of IPDU P.C. board for fan

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

• 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

(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.

All stop

• Fan motor check

• Connection check of connector for fan motor

(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)

All stop

• 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

(Auxiliary code: 0D)

Fan IPDU position detection circuit

Position detection was not normally performed.

(Windless status)

(Auxiliary code: 0C)

External cause such as blast

All stop

• Check connector connection and wiring on Comp. IPDU P.C. board.

Position detection was not normally performed.

(Windy status) (Restart after 6 seconds)

Instantaneous over-current was detected when

All stop

• 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.

compressor started.

Position was not normally detected.

All stop

E07/L07/L03/L08 was detected when other

Corresponding

indoor unit in the group was defective.

unit only stops.

Check code name

position

Detected

Check code

Outdoor 7-segment display

Wired

Check code Auxiliary code

remote

controller

Outdoor fan IPDU error

IPDU

each position

1 ∗: Output circuit error between

3 ∗: Motor lock error

4 ∗: Detection of motor current

P22 0 ∗ : IGBT circuit

P22

(Outdoor unit fan)

C∗ : TH sensor error

D∗ : TH sensor error

E * : Inverter DC voltage error

Note)

In “ ∗ ”, 0 to F is displayed,

but ignore it.

G-Tr short-circuit

protection error

Compressor position

detection circuit error

IPDU

P26 01: Compressor 1 side

P26

IPDU

02: Compressor 2 side

03: Compressor 3 side

02: Compressor 2 side

03: Compressor 3 side

P29 01: Compressor 1 side

P29

Other indoor error

(Group follower unit

error)

Indoor

——

P31

Page 66

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.

Error detection condition

Signal is not transmit from

central control device.

Signal is not received from

Status

Operation

continued.

Operation

• Check communication line error of central control device.

central control device.

continued.

• 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.

Error was input in general-

Operation

• Check the check code of the unit with alarm.

purpose equipment control

interface.

An error occurred in follower

Operation

continued.

• Check the address setup.

unit of the group control.

([P30] is displayed only on the

central remote controller.)

Central control addresses

Operation

continued.

were duplicated.

continued.

Error detected by TCC-LINK central control device

Check code name

Detected position

Check code

Outdoor 7-segment display

Check code Auxiliary code

device

Display on

central control

TCC-LINK central control device

transmission error

TCC-LINK central control device

TCC-LINK

—

C05

—

C06

transmission error

General-purpose controller control

General-purpose equipment

—

C12

Interface batched alarm

I/F

Follower unit error of group control

TCC-LINK

Differs according to

error contents of the with alarm

P30

Duplicated central control address

(L20 is displayed.)

Page 67

8-5. 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 68

Installation Manual

relocate and remove the air conditioners made by Toshiba Carrier Corporation or, alternatively, he

conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, maintain,

• The qualified installer is a person who installs, maintains, relocates and removes the air

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.

has the qualifications pertaining to this electrical work as stipulated by the local laws and

removal

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

• The qualified installer who is allowed to do the electrical work involved in installation, relocation and

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

nstallation, 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

2-EN

– 2 –

oners made by Toshiba Carrier Corporation. He or she has been trained to install,

on and removal has the qualifications pertaining to this electrical work as stipulated by the

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

orking at heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively, w

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.

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

the air conditi

• The qualified service person is a person who installs, repairs, maintains, relocates and removes

have been trained and is thus thoroughly acquainted with the knowledge related to these

operations.

relocati

local laws and regulations, and he or she is a person who has been trained in matters relating to

• The qualified service person who is allowed to do the electrical work involved in installation, repair,

trained in matters relating to refrigerant handling and piping work on the air conditioners made by

n installation, repair, relocation and removal has the qualifications pertaining to this refrigerant

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.

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

• The qualified service person who is allowed to do the r efrigerant handling and piping work involved

orking at heights with the air conditioners made by Toshiba Carrier Corporation or,

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.

to w

• The qualified service person who is allowed to work at heights has been trained in matters relating

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.

ded with the outdoor unit to the user, and ask the user to keep them in a safe place for future reference.

Thank you for purchasing this Toshiba air conditioner.

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.

After completing the installation work, hand over this Installation Manual as well as the Owner’s Manual

provi

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service Person

The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified

SMMS High-Wall Type

Installation Manual

service person. When any of these jobs is to be done, ask a qualified installer or qualified service person

Agent Qualifications and knowledge which the agent must have

scribed in the table below.

to do them for you.

A qualified installer or qualified service person is an agent who has the qualifications and knowledge

Qualified

nstaller

ervice person

Qualified

– 1 –

SMMS High-Wall Type

9. INSTALLATION MANUAL

Please read this Installation Manual carefully before installing the Air Conditioner.

• This Manual describes the installation method of the indoor unit.

ADOPTION OF NEW REFRIGERANT

1 Precautions for Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

• For installation of the outdoor unit, follow the Installation Manual attached to the outdoor unit.

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

2 Accessory Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Selection of Installation Place. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 Installation of Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5 Cutting a Hole and Mounting Installation Plate. . . . . . . . . . . . . . . . . . . . . . . . . 14

6 Piping and Drain Hose Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7 Indoor Unit Fixing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8 Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

9 Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

10 Electric Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

11 Applicable Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

12 Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

13 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1-EN

Page 69

Installation Manual

ise

4-EN

Warning indication Description

SMMS High-Wall Type

 Warning indications on the air conditioner unit

WARNING

rvicing.

ELECTRICAL SHOCK HAZA RD

Disconnect all remote electric power supplies before

WARNING

Moving parts.

Do not operate unit with grille removed.

WARNING

Disconnect all remote

electric power supplies

before servicing.

ELECTRICAL SHOCK HAZARD

Moving parts.

Stop the unit before the servicing.

CAUTION

High temperature parts.

You might get burned when removing this panel.

CAUTION

High temperature parts.

You might get burned

Do not operate unit with grille

removed.

Stop the unit before the servicing.

when removing this panel.

CAUTION

Do not touch the aluminum fins of the unit.

Doing so may result in injury.

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, otherw

there might be the burst.

CAUTION

BURST HAZARD

Open the service valves before

the operation, otherwise there

might be the burst.

– 4 –

Installation Manual

– 3 –

Protective gloves

‘Safety’ working clothing

Gloves to provide protection for electricians and from heat

Insulating shoes

al work detailed in the table below.

rns, electric shocks and other injuries.

speci

Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury,

Work undertaken Protective gear worn

SMMS High-Wall Type

In addition to such normal protective gear, wear the protective gear described below when undertaking the

Definition of Protective Gear

When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective

gloves and ‘safety’ work clothing.

All types of work

ork

Electrical-related

Shoes with additional protective toe cap

Clothing to provide protection from electric shock

Helmets for use in industry

(50 cm or more)

Transportation of

heavy objects

Repair of outdoor unit Gloves to provide protection for electricians and from heat

3-EN

Work done at heights

Page 70

Installation Manual

6-EN

– 6 –

Installation Manual

concentration of refrigerant leakage occur in the room does not exceed the critical level.

around the unit, it may ignite and cause a fire.

yourself if the bands should break.

themselves or receive electric shocks if they poke their fingers or other objects into the indoor unit while

the air conditioner is running.

conditioner, otherwise it may cause imperfect combustion.

or W3/8) must be used.

strength is not enough, the unit may fall down resulting in injury.

instructions may cause the product to fall down or topple over or give rise to noise, vibration, water

leakage or other trouble.

If the air conditioner is not installed appropriately, a unit may topple over or fall down, causing an

accident.

Selection of installation location

• When the air conditioner is installed in a small room, provide appropriate measures to ensure that the

• Do not install in a location where flammable gas leaks are possible. If the gas leak and accumulate

• To transport the air conditioner, wear shoes with additional protective toe caps.

• To transport the air conditioner, do not take hold of the bands around the packing carton. You may injure

• Install the indoor unit at least 2.5 m above the floor level since otherwise the users may injure

• Do not place any combustion appliance in a place where it is directly exposed to the wind of air

Installation

• When the indoor unit is to be suspended, the designated hanging bolts (M10 or W3/8) and nuts (M10

• Install the air conditioner securely in a location where the base can sustain the weight adequately. If the

• Follow the instructions in the Installation Manual to install the air conditioner. Failure to follow these

SMMS High-Wall Type

• Carry out the specified installation work to guard against the possibility of high winds and earthquake.

refrigerant gas comes in contact with fire, noxious gas may generate.

• If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked

• Use forklift to carry in the air conditioner units and use winch or hoist at installation of them.

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 refrigeration cycles is over pressurized, which may cause a injury.

may cause a crack in the flare nut after a long period, which may result in refrigerant leakage.

room and flows near a fire source, such as a cooking range, noxious gas may be generated.

• Tighten the flare nut with a torque wrench in the specified manner. Excessive tighten of the flare nut

• After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the

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.

• When the air conditioner has been installed or relocated, follow the instructions in the Installation

• Nitrogen gas must be used for the airtight test.

• The charge hose must be connected in such a way that it is not slack.

– 5 –

Precautions for Safety

WARNING

SMMS High-Wall Type

The manufacturer shall not assume any liability for the damage caused by not observing the description of

this manual.

instructions to install the air conditioner.

may result in water leakage, electric shock or fire.

abnormally high pressure may be generated in the refrigeration cycle, which may result in a failure or

explosion of the product or an injury to your body.

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.

OFF position. Otherwise, electric shocks may result.

removal work is being carried out. There is a danger of electric shocks if the circuit breaker is set to ON

by mistake.

a stand of 50 cm or more or to remove the intake grille of the indoor unit to undertake work.

for some reason, first put on protective gloves and safety work clothing, and then proceed.

the outdoor unit and result in injury.

follow the procedure in the ladder’s instructions. Also wear a helmet for use in industry as protective

gear to undertake the work.

and place a “Work in progress” sign near the circuit breaker before proceeding with the work.

proceeding with the work. Parts and other objects may fall from above, possibly injuring a person below.

While carrying out the work, wear a helmet for protection from falling objects.

the dealer.

General

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

• Only a qualified installer or service person is allowed to do installation work. Inappropriate installation

• Do not use any refrigerant different from the one specified for complement or replacement. Otherwise,

• Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuit

• Before carrying out the installation, maintenance, repair or removal work, set the circuit breaker to the

• Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair or

• Only a qu alified installer(*1) or qualified service person(*1) is allowed to undertake work at heights using

• Wear protective gloves and safety work clothing during installation, servicing and removal.

• Do not touch the aluminium fin of the unit. You may injure yourself if you do so. If the fin must be touched

• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of

• When work is performed at heights, use a ladder which complies with the ISO 14122 standard, and

• Before cleaning the filter or other parts of the outdoor unit, set the circuit breaker to OFF without fail,

• Before working at heights, put a sign in place so that no-one will approach the work location, before

• The refrigerant used by this air conditioner is the R410A.

• The air conditioner must be transported in stable condition. If any part of the product is broken, contact

shock when removing the cover and main unit.

• When the air conditioner must be transported by hand, carry it by two or more people.

• Do not move or repair any unit by yourself. There is high voltage inside the unit. You may get electric

5-EN

Page 71

Installation Manual

8-EN

– 8 –

Installation Manual

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.

pipe. Disconnecting the refrigerant pipe with the service valve left open and the compressor still

operating will cause air or other gas to be sucked in, raising the pressure inside the refrigeration cycle

Relocation

SMMS High-Wall Type

• Only a qualified installer(*1) or qualified service person(*1) is allowed to relocate the air conditioner. It

to an abnormally high level, and possibly resulting in rupture, injury or other trouble.

• When carrying out the pump-dow n work shut down the compressor before disconnecting the refrigerant

CAUTION

DESTROY OZONE LAYER.

pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant,

refrigerating oil has also been changed. Therefore, do not let water, dust, former refrigerant, or

refrigerating oil enter the refrigerating cycle during installation work.

charging port of the main unit and installation tools are changed from those for the conventional

refrigerant.

dust does not enter.

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT

• The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its

New Refrigerant Air Conditioner Installation

• To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of

• 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

separation of at least 3 mm.

• This appliance must be connected to the main power supply by means of a switch with a contact

To Disconnect the Appliance from Main Power Supply.

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.”

– 7 –

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.

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.

regulations and laws. Use of wiring which does not meet the specifications may give rise to electric

shocks, electrical leakage, smoking and / or a fire.

Electrical wiring

• Only a qualified installer(*1) or qualified service person(*1) is allowed to carry out the electrical work of

• To connect the electrical wires, repair the electrical parts or undertake other electrical jobs, wear gloves

SMMS High-Wall Type

• Use wiring that meets the specifications in the Installation Manual and the stipulations in the local

Incomplete grounding causes an electric shock.

• Connect earth wire. (Grounding work)

• Do not connect earth wires to gas pipes, water pipes, and lightning conductor or telephone earth wires.

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

• Install a circuit breaker that meets the specifications in the installation manual and the stipulations in

the local regulations and laws.

• Install the circuit breaker where it can be easily accessed by the agent.

• When installing the circuit breaker outdoors, install one which is designed to be used outdoors.

• Under no circumstances the power wire must not be extended. Connection trouble in the places where

the wire 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

installation manual.

Failure to do so may result in electrocution or short circuit.

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

the ON position. You may receive an electric shock if the power is turned on without first conducting

these checks.

sounds, 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

• If there is any kind of trouble (such as an error display has appeared, smell of burning, abnormal

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 trouble.

or 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 electric shock is caused at user’s side.

and water drainage. Then conduct a test run to check that the air conditioner is operating properly.

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.

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 work has finished, use an insulation tester set (500 V Megger) to check the resistance is 1 MΩ

• Upon completion of the installation work, check for refrigerant leaks and check the insulation resistance

Explanations given to user

• Upon completion of the installation work, tell the user where the circuit breaker is located. If the user

• If the fan grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF

• After the installation work, follow the Owner’s Manual to explain to the customer how to use and

maintain the unit.

7-EN

Page 72

Installation Manual

10-EN

– 10 –

Selection of Installation Place

Installation Manual

WARNING

If the strength is not enough, the unit may fall down resulting in injury.

SMMS High-Wall Type

• Install the air conditioner at enough strong place to withstand the weight of the unit.

CAUTION

If a combustible gas leaks and stays around the unit, a fire may occur.

• Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas.

Upon approval of the customer, install the air conditioner in a place that satisfies the

following conditions.

• Place where the unit can be installed horizontally.

• Place where a sufficient servicing space can be ensured for safety maintenance and check.

• Place where drained water will not cause any problem.

gas (hot spring).

(Should the unit be used in these places, special protective measures are needed.)

heat exchanger and resin part (cross flow fan) in the indoor unit may reduce the performance, generate

Avoid installing in the following places.

• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide

• A restaurant kitchen where a lot of oil is used or place near machines in a factory (Oil adhering to the

mist or dew drop, or deform or damage resin parts.)

• Place where organic solvent is used nearby.

(When install the outdoor unit on the boundary with the neighbour, pay due attention to the level of noise.)

objects, or where breeding animals or growing plants are kept. (This may degrade the quality of

preserved materials.)

medical equipment, and communication equipment) and inverter-type fluorescent light is installed.

(A malfunction of the air conditioner, abnormal control, or problems due to noise to such appliances /

equipment may occur.)

• Place close to a machine generating high frequency.

• Place where the discharged air blows directly into the window of the neighbour house. (Outdoor unit)

• Place where noise of the outdoor unit is easily transmitted.

• Place with poor ventilation.

• Do not use the air conditioner for special purposes such as preserving food, precision instruments, or art

• Place where any of high-frequency appliances (including inverter devices, private power generators,

at a place exposed to direct sunlight, signals from the remote controller may not be received correctly.

• When the wireless remote controller is used in a room equipped with an inverter-type fluorescent light or

• Place where organic solvent is used.

• Place near a door or window exposed to humid outside air (Dew dropping may form.).

• Place where special spray is used frequently.

– 9 –

Accessory Parts

SMMS High-Wall Type

 Accessory parts

Part name Q’ty Shape

Name

Installation plate 1

Wireless remote controller 1

Battery 2

Remote control holder 1

Mounting screw Ø4 × 25 6

Pan head wood screw Ø3.1 × 16 2

Paper pattern

Owner’s manual

Installation manual

9-EN

Page 73

Installation Manual

12-EN

* 7 m

5 m

Remote controller

SMMS High-Wall Type

 Installation place

Installation Manual

• A place which provides the spaces around the indoor unit as shown in the above diagram.

• A place where there is no obstacle near the air intake and discharge.

• A place that allows easy installation of the piping to the outdoor unit.

• A place which allows the front panel to be opened.

For the rear left and left

piping

CAUTION

Wall

Installation plate

Hook

100 mm or more

o m r

Indoor unit

Reception range

* : Axial distance

– 12 –

Remote controller

(Side view) (Top view)

5°

Reception

range

Indoor unit

(For details, see the owner’s manual.)

• Direct sunlight to the indoor unit’s wireless receiver should be avoided.

• The microprocessor in the indoor unit should not be too close to RF noise sources.

Insert the cushion

between the indoor unit

 Wireless remote controller

Do not allow the drain

and wall, and tilt the indoor

unit for better operation.

Shield pipe

Hook

Cover

Batteries

hose to get slack.

• A place where there are no obstacles such as a curtain that may block the signal from the indoor unit.

• Do not install the remote controller in a place exposed to direct sunlight or close to a heating source, such

Cut the

piping hole

sloped

as a stove.

(This is necessary to prevent image disturb-bounces or noise interference.)

• Keep the remote controller at least 1 m apart from the nearest TV set or stereo equipment.

slightly.

h c a

(

• The location of the remote controller should be determined as shown below.

Left

Run the drain hose sloped

downward.

The auxiliary piping can be connected to the left, rear left,

rear right, right, bottom right or bottom left.

Right

Bottom left

Rear left

Bottom right

Rear right

– 11 –

)

n a p

Remote control

holder

Pan head wood

screw

cover open, load the

batteries supplied

correctly, observing their

• With the remote controller

polarity.

Wireless remote controller

Before installing the

SMMS High-Wall Type

 Installation diagram of Indoor and outdoor units

wireless remote controller

Wireless remote

control

Keep 100 mm or more for clearance between top plate of the indoor unit and the ceiling surface.

 Installation space

The indoor unit shall be installed so that its top surface comes at a height of 2 m or more.

Also it must be avoided to put anything on top of the indoor unit.

*1 Reserve space required to install the indoor unit and for service work.

*2 Keep a space more than 300 mm for wiring work at installation of the Flow Selector Unit (FS Unit).

11-EN

Page 74

Installation Manual

Securely fit the installation plate onto the

wall by screwing it in the upper and lower

parts to hook up the indoor unit.2To mount the installation plate on a

concrete wall with anchor bolts, utilize the

anchor bolt holes as illustrated in the above

directly mounted on the wall

 When the installation plate is

figure.3Install the installation plate horizontally in

the wall.

CAUTION

14-EN

Projection

15 mm or less

Anchor bolt

Mounting screw

4 × 25

GOOD

Clip anchor

OK NO

ersonal injury and property damage.

To install the installation plate with a mounting

screw, do not use the anchor bolt hole.

Otherwise the unit may fall down and result in

GOOD

5 mm dia. hole

(local parts)

CAUTION

Failure to firmly install the unit may result in

personal injury and property damage if the unit

falls.

• In case of block, brick, concrete or similar type

installation plate with 6 mounting screws to

walls, make 5 mm dia. holes in the wall.

screws.

• Insert clip anchors for appropriate mounting

NOTE

install it.

• Secure four corners and lower parts of the

– 14 –

23 mm

Pipe hole

Cutting a Hole and Mounting Installation Plate

Decide the hole position for piping at 100

mm from the arrow mark () on the

installation plate and drill a hole with Ø65

mm at a slight downward slant toward

outdoor side.

SMMS High-Wall Type

 Cutting a hole

In case of installing the refrigerant pipes from the

rear:

Installation Manual

127.5

107

100 mm

Hook

Fix the installation plate to the wall with screws to

make the indoor unit fit to the wall.

or metal plate, use a pipe hole brim ring sold

separately.

NOTE

The centre of the pipe hole is

above the arrow

• To drill a w all that contains a metal lath, wire lath

 Mounting the installation plate

For installation of the indoor unit, use the paper

pattern in the accessory parts.

Installation

plate

Pipe hole

Hook

Mounting Screw

Weight

Thread

Hook

170

Indoor unit

Pipe hole

Installation of Indoor Unit

WARNING

Install the air conditioner certainly to sufficiently withstand the weight.

If the strength is insufficient, the unit may fall down resulting in human injury.

Perform a specified installation work to guard against strong wind or earthquake.

SMMS High-Wall Type

An incomplete installation can cause accidents by the units falling and dropping.

: Not cooled well.

Bad installation place

Screen

– 13 –

OK NO GOOD

Good installation place

Cooled well all over.

rts.

specified.

or other pa

REQUIREMENT

buse buffering cloth or other material to not damage the unit.

• To move the indoor unit, do not apply force to the refrigerant pipe, drain pan, foamed parts, or resin parts

• 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,

Strictly comply with the following rules to prevent damage of the indoor units and human injury.

• Carry the package by two or more persons, and do not bundle it with plastic band at positions other than Be careful to the following items at installation of the unit.

• Considering air discharge direction, select an installation place w here discharge air can circulate evenly

in a room. Avoid to install the unit at place with “NO GOOD” mark in the right figure.

13-EN

Page 75

Installation Manual

Do not apply lubricating oil (refrigerant machine oil)

during inserting the drain cap.

Application causes deterioration and drain leakage

from the plug.

16-EN

– 16 –

Slit

SMMS High-Wall Type

How to remove the drains cap

Clip the drain cap by needle-nose pliers and pull out.

Installation Manual

How to fix the drains cap

1) Insert hexagonal wrench (dia. 4 mm) in a centre head.

Piping

Slit

4 mm

No gap

Insert a hexagon

wrench (4 mm)

CAUTION

2) Firmly insert drains cap.

preparation

Firmly insert the drain hose and drain cap; otherwise, water may leak.

Heat

insulator

equivalent tool.

▼ In case of right or left piping

• After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an

Drain hose

▼ In case of bottom right or bottom left piping

equivalent tool.

• After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an

Changing

drain hose

front panel

Die-cutting

Piping and Drain Hose Installation

Rear left

Rear right

SMMS High-Wall Type

(Use polyethylene foam for insulating material.)

 Piping and drain hose forming

* Apply heat-insulation for both r efrigerant pipe and drain hose surely so that no dew generates inside of the equipment.

Left

Bottom left

slit

Right

Bottom right

– 15 –

edges can injuries.

1. Die-cutting front panel slit

Cut out the slit on the leftward or right side of the front panel for the left or right connection and the slit on

the bottom left or right side of the front panel for the bottom left or right connection with a pair of nippers.

2. Changing drain hose

For leftward connection, bottom-leftward connection and rear leftward connection's piping, it is necessary

to change the drain hose and drain cap.

Without changing the drain hose position, the indoor unit will not fit to the wall.

How to remove the drain hose

• The drain hose can be removed by pulling out the drain hose.

• To remove the drain hose, be careful of any sharp edges of steel plate. The

contacts with heat insulator.

• To install the drain hose, insert the drain hose firmly until the connection part

15-EN

Page 76

Installation Manual

Do not form the drain hose

18-EN

Do not put the

drain hose end

in the drainage

ditch.

Extension drain hose

into a wavy shape.

Do not put the

drain hose end

into water.

Inside the

Shield pipe

room

Wall

Drain guide

Drainage

Run the drain hose sloped downwards.

NOTE

Indoor Unit Fixing

Pass the pipe through the hole in the wall,

and hook the indoor unit on the installation

plate at the upper hooks.2Swing the indoor unit to right and left to

SMMS High-Wall Type

Space for pipes

Drain hose

CAUTION

Arrange the drain pipe for proper drainage from

the unit.

Improper drainage can result in dew-dropping.

This air conditioner has the structure designed to

drain water collected from dew, which forms on the

back of the indoor unit, to the drain pan.

Therefore, do not store the power cord and other

parts at a height above the drain guide.

Do not rise the drain hose.

50 mm

Put water in the drain pan and confirm that

the water is drained out of doors.3Before connecting extension drain hose,

insulate the connecting part of extension

on the outdoor side.

• Hole should be made at a slight do wnward slant

drain hose with shield pipe.

or more

– 18 –

Press

(unhook)

PushPush

Hook here

Installation plate

confirm that it is firmly hooked up on the

installation plate.3While pressing the indoor unit onto the wall,

hook it at the lower part on the installation

plate. Pull the indoor unit toward you to

confirm that it is firmly hooked up on the

installation plate.

Hook

• For detaching the indoor unit from the installa tion

plate, pull the indoor unit toward you while

pushing its bottom up at the specified parts.

Installation Manual

Control wiring

Power supply wiring

Indoor unit

(To the fore front of flare)

Gas side

Liquid side

270 mm

SMMS High-Wall Type

▼ Left-hand connection with piping

Bend the connecting pipe so that it is laid within 43 mm above the wall surface. If the connecting pipe is laid

exceeding 43 mm above the wall surface, the indoor unit may unstably be set on the wall. To bending the

connecting pipe, use a spring bender so as not to crush the pipe.

Bend the connection pipe within a radius of 30 mm.

To connect the pipe after installation of the unit (figure)

170 mm

Outward form of indoor unit

R 30 mm (Use polish polyethylene core

or the like for bending pipe.)

43mm

Use the handle of screwdriver, etc.

NOTE

If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall.

After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes

and wrap the facing tape around them.

CAUTION

of leftward piping and rear leftward piping, bind the auxiliary pipes (two) only with facing tape.

• Bind the auxiliary pipes (two) and power supply wiring and control wiring with facing tape tightly. In case

Auxiliary pipes

Installation plate

ound on the connecting pipe to avoid double-taping at the joint, moreover, seal the joint with the vinyl w

tape.

• Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit.

• Carefully connect the auxiliary pipes and connecting pipes to one another and cut off the insulating tape

• Since dew results in a machine trouble, insulate both the connecting pipes.

(Use polyethylene foam as insulating material.)

• Bend a pipe carefully. Do not crush it.

– 17 –

17-EN

Page 77

Installation Manual

 Airtight test / air purge, etc.

For air tightness test, adding refrigerant, refer to the

Installation Manual attached to the outdoor unit.

CAUTION

Do not supply power to the indoor unit until the

airtight test and vacuuming are completed. (If the

indoor unit is powered on, the pulse motor valve is

(Unit: N•m)

20-EN

Local side pipe

Fix with vinyl tape

Heat insulator

must be used for the gas side pipe.

must be heat insulated securely and compactly

fully closed, which extends the time for

vacuuming.)

 Open the valve fully

Open the valve of the outdoor unit fully.

Heat insulation

Heat insulation for the pipes should be done

separately for the liquid side and gas side. Because

both of the liquid and gas side pipes become a low

temperature during cooling operation, sufficient

heat insulation should be done to prevent

condensation.

• Heat insulator with a heat resistance of 120 °C or

• The pipe connection section of the indoor unit

with the attached heat insulator.

(attached)

– 20 –

Installation Manual

0 +

-0.4

R410A

6.4 9.1

Outer dia. of copper pipe

Work using double spanner

CAUTION

Tightening with an excessive torque may crack

the nut depending on installation conditions.

Tighten the nut within the specified tightening

15.9 19.7

flare tool, pull it out approx.

conventional

* In case of flaring for R410A with the

9.5 13.2

12.7 16.6

torque.

ng projection margin size.

e specified flare size.

0.5 mm more than that for R22 to adjust

to th

The copper pipe gauge is useful for

adjusti

6.4 mm 14 to 18 (1.4 to 1.8 kgf•m)

9.5 mm 33 to 42 (3.3 to 4.2 kgf•m)

12.7 mm 50 to 62 (5.0 to 6.2 kgf•m)

15.9 mm 63 to 77 (6.3 to 7.7 kgf•m)

CAUTION

nut may crack depending on the conditions.

SMMS High-Wall Type

Tightening connection

• Do not apply excessive torque. Otherwise, the

height difference

 Permissible piping length and

Outer dia. of copper pipe Tightening torque

They vary according to the outdoor unit.

For details, refer to the Installation Manual attached

to the outdoor unit.

Remove burrs completely.

Flaring

• Cut the pipe with a pipe cutter.

Remaining burrs may cause gas leakage.

▼ Tightening torque of flare pipe connections

Pressure of R410A is higher than that of R22.

(Approx. 1.6 times) Therefore, using a torque

wrench, tighten the flare pipe connecting sections

which connect the indoor and outdoor units of the

specified tightening torque.

Incorrect connections may cause not only a gas

leak, but also a trouble of the refrigeration cycle.

Align the centres of the connecting pipes and

tighten the flare nut as far as possible with your

fingers. Then tighten the nut with a spanner and

torque wrench as shown in the figure.

ool used t

Conventional

0 to 0.5 1.0 to 1.5

R410A tool used

ventional tools can

As the flaring sizes of R410A differ from those of

refrigerant R22, the flare tools newly

manufactured for R410A are recommended.

However, the

con

be used by adjusting

projection margin of the

• Insert a flare nut into the pipe, and flare the pipe.

copper pipe.

▼ Projection margin in flaring: B (Unit: mm)

Rigid (Clutch type)

6.4, 9.5

12.7, 15.9

copper pipe

Outer dia. of

▼ Flaring dia. meter size: A (Unit: mm)

– 19 –

Refrigerant Piping

SMMS High-Wall Type

 Refrigerant piping

Use copper pipe with 0.8 mm or more

thickness. (In case pipe size is dia. 15.9,

with 1.0 mm or more.)2Flare nut and flare works are also different

(dia.: mm)

UM PUMP.

Gas side 9.5

from those of the conventional refrigerant.

Take out the flare nut attached to the main

unit of the air conditioner, and use it.

REQUIREMENT

When the refrigerant pipe is long, provide support

brackets at intervals of 2.5 to 3 m to clamp the

refrigerant pipe. Otherwise, abnormal sound may

CAUTION

be generated.

IMPORTANT 4 POINTS FOR PIPING WORK

the connecting pipes.

1. Remove dust and moisture from the inside of

VACU

2. Tight connection (between pipes and unit)

3. Evacuate the air in the connecting pipes using

4. Check the gas leakage. (Connected points)

 Pipe size

Liquid side 6.4

19-EN

Page 78

22-EN

Installation Manual

SMMS High-Wall Type

 Power supply wire and communication wires specifications

(Up to 2000 m) 2.0 mm²

(Up to 1000 m) 1.25 mm²

220 V ~, 60 Hz

controllers wiring.

In case of wired type only Up to 500 m

Wire size: 0.5 mm² to 2.0 mm²

Remote controller wiring, remote controller inter-unit wiring

Total wire length of remote controller wiring and remote

In case of wireless type included Up to 400 m

controller inter-unit wiring = L + L1 + L2 + … Ln

– 22 –

Total wire length of remote controller inter-unit wiring = L1 + L2 + … Ln Up to 200 m

220 V – 240 V ~, 50 Hz

Wire size

nication line

Power supply wiring Below 50 m 2.5 mm

outdoor unit.

Power supply wire and communication wires are procured locally.

For the power supply specifications, follow to the following table. If capacity is little, it is dangerous because

overheat or burnout may be caused.

For specifications of the power capacity of the outdoor unit and the power supply wires, refer to the

Installation Manual attached to the outdoor unit.

Indoor unit power supply

• For the power supply of the indoor unit, prepare the exclusive power supply separated from that of the

outdoor unit so that they are commonly used.

• Arrange the power supply, circuit breaker, and main switch of the indoor unit connected to the same

• Power supply wire specification: Cable 3-core 2.5 mm², in conformity with Design 60245 IEC 57.

▼ Power supply

umulated total current values of the indoor units.

Power supply

Power supply switch / circuit breaker or power supply wiring / fuse rating for indoor units should be selected by the

acc

Control wiring, Central controller wiring

controller wiring.

and outdoor units added with the central control system wire length.

Control wiring between indoor units, and

outdoor unit (2-core shield wire)

• 2-core with polarity wires are used for the Control wiring between indoor unit and outdoor unit and Central

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

• The length of the communication line means the total length of the inter-unit wire length between indoor

▼ Commu

Central control line wiring (2-core shield wire) Wire size

Wired remote controller wiring

• 2-core with non-polarity wire is used for wiring of the remote controller wiring and group remote

Installation Manual

Electric Work

SMMS High-Wall Type

10.

WARNING

forces applied to the terminals from affecting the terminals.

Incomplete connection or fixation may cause a fire or other trouble.

• Use the specified wires for wiring connect the terminals. Securely fix them to prevent external

nnect earth wire. (grounding work)

• Co

Incomplete grounding cause an electric shock.

Do not connect earth wires to gas pipes, water pipes, lightning conductor or telephone earth wires.

for control wiring.

)

( , ,

– 21 –

g peeling them.

• Do not damage or scratch the conductive core and inner insulator of power and inter-connecting wires

durin

ired.

requ

• Use the power cord and Inter-connecting wire of specified thickness, type, and protective devices

The coating may melt resulting in an accident.

(Otherwise, the system will fail.)

Do not connect 220 V – 240 V power to the terminal blocks

•

• Perform the electric wiring so that it does not come to contact with the high-temperature part of the pipe.

REQUIREMENT

ppliance shall be installed in accordance with national wiring regulations.

Capacity shortage of power circuit or incomplete installation may cause an electric shock or a fire.

• A

CAUTION

If an earth leakage breaker is not installed, an electric shock may be caused.

• If incorrect / incomplete wiring is carried out, it will cause an electrical fire or smoke.

• Install an earth leakage breaker that is not tripped by shock waves.

• Use the cord clamps attached to the product.

e.The coating may melt resulting in an accident. pip

• After connecting wires to the terminal blocks, provide a trap and fix wires with the cord clamp.

• For power supply wiring, strictly conform to the Local Regulation in each country.

• For wiring of power supply of the outdoor units, follow the Installation Manual of each outdoor unit.

• Run the refrigerant piping line and control wiring line in the same line.

• Perform the electric wiring so that it does not come to contact with the high-temperature part of the

• Do not turn on the power of the indoor unit until vacuuming of the refrigerant pipes completes.

21-EN

Page 79

Installation Manual

24-EN

U1 U2LN AB

U1 U2 U3 U4L1 L2 L3 N U5 U6

Follower outdoor

unit

U1 U2LN AB

Earth

terminal

U1 U2 U3 U4L1 L2 L3 N U5 U6

Earth

terminal

Control wiring between outdoor units

Control wiring between indoor and outdoor units

Indoor unit Indoor unit Indoor unit

Control wiring between indoor units

U1 U2

LN AB

Indoor unit

Earth Earth Earth Earth

Outdoor Power supply

380 V - 415 V ~, 50 Hz

380 V ~, 60 Hz

Circuit breaker Circuit breaker

Header outdoor

unit

Outdoor Power supply

380 V - 415 V ~, 50 Hz

380 V ~, 60 Hz

▼ Wiring example

SMMS High-Wall Type

Remote controller Remote controller

Remote controller

Indoor power supply

220 V - 240 V ~, 50 Hz

220 V ~, 60 Hz

Group control

Wired remote

Terminal block

controller unit

Pull boxPull boxPull box

– 24 –

Wired remote controller wire

(Procured locally)

Terminal block for

remote controller

wiring of indoor unit

Circuit breaker,

Power switch

 Wired remote controller wiring

• As the wired remote controller wire has non-polarity, there is no problem if connections to indoor unit

iring diagram

terminal blocks A and B are reversed.

▼ W

 Address setup

Set up the addresses as per the Installation Manual supplied with Outdoor unit.

Installation Manual

(Max. 8 units)

– 23 –

Indoor unit Indoor unit Indoor unit

Remote controller inter-unit wiring

L1 L2 Ln

Remote

Indoor unit

controller

CAUTION

The remote controller wire (Communication line) and AC 220 – 240 V wires cannot be parallel to

contact each other and cannot be stored in the same conduits. If doing so, a trouble may be

SMMS High-Wall Type

caused on the control system due to noise or other factor.

iring

Remote

controller

NOTE

 Wiring between indoor and outdoor units

An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically

the header unit.

23-EN

Page 80

Installation Manual

Cord clamp

26-EN

Screw

Earth line

Terminal

block

Wiring cover

Power supply wire of

flow selector unit

– 26 –

Slit of the

terminal block

Terminal

block

Open the air intake grille upward and pull it toward you.

toward you to remove it from the rear plate.

Tightening torque: 1.2 N·m (0.12 kgf·m)

Secure the earth line with the earth screw.

SMMS High-Wall Type

 Wiring connection for the flow selector unit

Connect the wiring of the flow selector unit

Connect the power supply wire and the communication wire supplied with the flow selector unit to the indoor

unit.

1. Remove the air intake grille.

2. Remove the four screws securing the front panel.

3. Slightly open the lower part of the front panel, and then pull the upper part of the front panel

4. Remove the wiring cover and cord clamp for right side of indoor unit.

5. Insert the power supply wire fully into the terminal block and secure it tightly with screws.

under of the terminal block.

6. Connect the control wire connector of the flow selector unit to the lead with a connector to the

7. Take the control wire outwards through the slit of the terminal block.

8. Clamp the power supply wire and control wire of the flow selector unit tight with the cord clamp.

9. Attach the wiring cover, the front panel and the air intake grille to the indoor unit.

Control wire from

the flow selector

Control wire

unit

CAUTION

Confirm that every wires are stored in the electrical control box without getting caught before attaching the

terminal cover.

Power supply

terminal block

Installation Manual

SMMS High-Wall Type

 Wiring connection

Terminal block

How to connect the power supply wiring

and control wiring

for control /

wired remote

controller wiring

Cord clamp

U2 A B

U1NLU2AB

Open the air intake grille upward and pull it

toward you.

1. Remove the air intake grille.

Cord clamp

R(L) S(N)

panel.

2. Remove the four screws securing the front

Notch

Power supply

wire

Control wire

10 mm

ABS

Earth screw

110 mm

10 mm

40 mm

Terminal block

Terminal cover

Screw

– 25 –

Front panel

iring instructions and limitations.

A B

panel then pull the upper part of the front

, , and secure it tightly with screws.

panel toward you to remove it from the rear

plate.

wire (according to the local rule) into the

pipe hole on the wall.

wire out of the cable slot on the rear panel

so that it protrudes about 150 mm from the

front.

terminal block and secure it tightly with

screws. Tightening torque: 1.2 N·m (0.12

kgf·m) Secure the earth line with the earth

screw.

wired remote controller terminal block ,

3. Slightly open the lower part of the front

4. Remove the terminal cover.

5. Insert the power supply wire and control

6. Take the power supply wire and the control

7. Insert the power supply wire fully into the

8. Insert the control wire fully into the control /

control wire with the cord clamp.

9. Clamp the power supply wire and the

10.Attach the terminal cover, the front panel

CAUTION

and the air intake grille to the indoor unit.

front panel.

• Refer to the wiring diagram attached inside the

specific w

• Check local electrical cords and also any

Air intake grille

25-EN

Page 81

28-EN

Installation Manual

 Filter sign setting

Each time button is pushed, indoor

unit numbers in the control group change

SMMS High-Wall Type

According to the installation condition, the lighting

time of the filter sign (Notification of filter cleaning)

cyclically. Select the indoor unit to change

, specify [01].

, select the

→

SET DATA of filter sign term from the following

→

can be changed.

Follow to the basic operation procedure

(

• For the CODE No.. in Procedure

• For the SET DATA in Procedure

0000 None

0001 150 H ( Factory default)

0002 2500 H

0003 5000 H

table.

SET DATA Filter sign term

0004 10000 H

 To secure better effect of heating

When it is difficult to obtain satisfactory heating due

to installation place of the indoor unit or structure of

the room, the detection temperature of heating can

be raised. Also use a circulator, etc. to circulate

, specify [06].

, select the

→

SET DATA of shift value of detection

→

heat air near the ceiling.

Follow to the basic operation procedure

(

• For the CODE No.. in Procedure

• For the SET DATA in Procedure

0000 No shift

0001 +1 °C

0002 +2 °C (Factory default)

0003 +3 °C

0004 +4 °C

0005 +5 °C

temperature to be set up from the table below.

SET DATA Detection temp shift value

0006 +6 °C

– 28 –

button was pushed,

button to clear the settings.

from Procedure

• To change other settings of the selected indoor

• To change settings of another indoor unit, repeat

peat from Procedure

unit, re

Use

repeat from Procedure

To make settings after

button to determine the settings.

When settings have been completed, push

buttons.

/ buttons.

The fan of the selected unit runs and the louvers start

swinging. The indoor unit for change settings can be

confirmed.

settings for.

Specify CODE No.[ ] with “TEMP.”

Select SET DATA [ ] with “TIME”

Push button. When the display changes

from flashing to lit, the setup is completed.

onditioner enters the normal stop mode.

then the display content disappears and the air

(While “SETTING” is flashing, no operation of the

When button is pushed, “SETTING” flashes and

controller is accepted.)

remote

Installation Manual

Applicable Controls

SMMS High-Wall Type

11.

A wired remote controller is necessary for this function. This function cannot be operate with a wireless

remote controller.

settings

 Basic procedure for changing

Change the settings while the air conditioner is not

working.

(Stop the air conditioner before making settings.)

The display content for setting differs from that on

time, it takes approx. 5 minutes until the remote

controller becomes available after power-on.

This is normal.

REQUIREMENT

• When this air conditioner is used for the first

<When power is turned on for the first time

the former types of remote controller (RBC-

AMT21E / AMT31E). (The number of CODE No.

has increased.)

rox. 5 minutes until the remote

installation>

after

It takes app

controller becomes available.

button to

button is pushed.)

5 1

ocedure from the beginning.

erase the display content, and repeat the

Push button and “TEMP.” button

After a while, the display flashes as shown in the

figure.

Confirm that the CODE No. is [01].

simultaneously for at least 4 seconds.

• If the CODE No. is not [01], push

(No operation of the remote controller is accepted

a while after for

(While air conditioners are operated under the

is pushed, the indoor unit number

oup control, “ALL” is displayed first. When

displayed following “ALL” is the header unit.)

Remote

controller is

available

Approx. 5 minutes

“SETTING”

goes out

“SETTING”

flashes

<When power is turned on for the second (or

later) time>

Power

It takes approx. 1 minute until the remote

Remote

controller is

available

Approx. 1 minutes

“SETTING”

goes out

“SETTING”

flashes

remote controller, sub remote controller, or

remote-controller less system (for central remote

controller only). Therefore, install the wired remote

controller becomes available.

Power

Change the indoor unit settings as required.

settings.

• Normal settings were made as factory default.

• Use the wired remote controller to change the

controller to change the settings.

* The settings cannot be changed using the w ireless

the indoor unit model.)

(* Display content varies with

– 27 –

27-EN

Page 82

Installation Manual

30-EN

2, 4

button for 4 seconds or more.

Push

permitted.

[TEST] is displayed on the display part and

Wired remote controller

1,5

the selection of mode in the test mode is

Push button.3Select the operation mode with

button, [COOL] or [HEAT].

• Do not run the air conditioner in a mode other than

[COOL] or [HEAT].

• The temperature controlling function does not

ork during test run. w

• The detection of error is performed as usual.

– 30 –

tected, do

Installation Manual

SMMS High-Wall Type

Test Run

12.

A wired remote controller is necessary for this function. This function cannot be operate with a wireless

remote controller.

Using the remote controller switch, change

the up / down air direction by moving the

horizontal louver.2Adjust the right / left air direction by

 Adjustment of air direction

 Before test run

• Before turning on the power supply, carry out the

bending the vertical grille inside of the air

discharge port with hands.

following procedure.

1 MΩ or more exists between the terminal

block of the power supply and the earth

(grounding).

If resistance of less than 1 MΩ is de

not run the unit.

1) Using 500 V-megger, check that resistance of

REQUIREMENT

Do not touch the horizontal louver directly with

hands; otherwise a trouble may be caused.

For handling of the horizontal louver, refer to

opened fully.

2) Check the valve of the outdoor unit being

• To protect the compressor at activation time,

“Owner’s Manual”.

ly perform a test run. (This is very

leave power-ON for 12 hours or more be for

dangerous because the protective device does

operating.

forcib

• Do not press the electromagnetic contactor to

not work.)

• Before starting a test run, set addresses

following the installation manual supplied with

the outdoor unit.

 Execute a test run

Using the wired remote controller, operate the unit

as usual.

For the procedure of the operation, refer to the

attached Owner’s Manual.

A forced test run can be executed in the following

procedure even if the operation stops by thermo.-

OFF.

In order to prevent a serial operation, the forced test

run is released after 60 minutes have passed and

returns to the usual operation.

CAUTION

than the test run because it applies an

excessive load to the devices.

• Do not use the forced test run for cases other

– 29 –

SMMS High-Wall Type

 Remote controller sensor

The temperature sensor of the indoor unit senses

room temperature usually. Set the remote

controller sensor to sense the temperature around

the remote controller.

dure

Select items following the basic operation

proce

Used

→

(

• Specify [32] for the CODE No. in Procedure

• Select the following data for the SET DATA in

Procedure

SET DATA 0000 0001

Not used

(Factory default)

Remote controller

sens

When flashes, the remote controller sensor is

defective.

Select the SET DATA [0000] (not used) or replace

the remote controller.

 Group control

te controller inter-unit cables from the

ndividual line (Identical refrigerant line) system,

group control. The wireless remote controller is

unavailable for this control.

In a group control, a remote controller can control

up to maximum 8 units.

• The wired remote controller only can control a

• For cabling procedure and cables of the

Connect the indoor units by connecting the

remo

remote controller terminal blocks (A, B) of the

refer to “Electric work” in this Manual.

performed in the following procedure.

• Cabling between indoor units in a group is

indoor unit connected with a remote controller to

ual attached to the outdoor unit.

the remote controller terminal blocks (A, B) of the

other indoor unit. (Non-polarity)

Man

NOTE

• For address setup, refer to the Installation

“1:1 Model” Connection Interface (Model TCB-

PCNT30TLE2) can not connect to this High Wall

type air conditioner.

29-EN

Page 83

Installation Manual

32-EN

used to set temperature, the error log stored

in memory is displayed in order.

Every pushing of “TEMP.” button

The numbers in CODE No. indicate CODE No. [01]

(latest) → [04] (oldest).

REQUIREMENT

After confirmation, push button to

return to the usual display.

Do not push button because all the error log of

the indoor unit will be deleted.

– 32 –

an error occurred

Troubleshooting

SMMS High-Wall Type

13.

A wired remote controller is necessary for this function. This function cannot be operate with a wireless

Installation Manual

Wireless remote controller (Forced test

operation is performed in a different

way.)

remote controller.

 Confirmation and check

Manual.

REQUIREMENT

• For the operation procedure, follow the Owner’s

When an error occurred in the air conditioner, the

check code and the indoor UNIT No. appear on the

se it applies excessive strength to

time becau

• Finish the forced cooling operation in a short

rder of error log] is displayed in CODE No.

played in UNIT No.

window.

When and buttons are pushed

simultaneously for 4 seconds or more, the

following display appears.

If [Service check] is displayed, the mode enters in

status and stop status.

• Check wiring / piping of indoor and outdoor

Check code Indoor UNIT No. in w hich

When “TEMPORARY” button is pushed for

units

10 seconds or more, “Pi!” sound is heard

and the operation changes to a forced

cooling operation. After approx. 3 minutes,

a cooling operation starts forcedly.

 Confirmation of error log

When an error occurred on the air conditioner, the

Check cool air starts blowing. If the operation does

not start, check wiring again.

error log can be confirmed with the following

To stop a test operation, push

procedure. (The error log is stored in memory up to

“TEMPORARY” button once again (Approx.

4 errors.)

The log can be confirmed from both operating

1 second).

The louver closes and the operation stops.

display part of the remote controller.

The check code is only displayed during the

operation.

If the display disappears, operate the air

conditioner according to the following “Confirmation

of error log” for confirmation.

available. Perform a test operation by heating

the air conditioner.

operation using the switches of the remote

controller.

However heating operation may be not carried

• A test operation of forced heating is

out according to the temperature conditions.

the error log mode.

TEMPORARY button

• Check transmission of remote controller

• [Check code] is displayed in CHECK window.

•[01: O

Push “START / STOP” button of the remote

controller to check an operation can also

start by the remote controller.

dis

• [Indoor unit address in which an error occurred] is

nits in forced cooling operation.

be unavailable according to the temperature

conditions.

Check wiring / piping of the indoor and outdoor

• “Cooling” operation by the remote controller may

– 31 –

After the test run, push button to

stop a test run.

(Display part is same as procedure 1.)

Push button to cancel (release from) the

test run mode.

([TEST] disappears on the display and the status

returns to a normal.)

SMMS High-Wall Type

31-EN

Page 84

34-EN

Installation Manual

indoor unit MC

01:Indoor /

Automatic address

utdoor units O

communication

I/F

E12 E12

device

Remote

Judging

eck code Ch

Sensor block display of

AI-NET

Check code Wireless remote controller

Outdoor unit 7-

Wired

SMMS High-Wall Type

name

receiving unit

central

control

segment display

remote

controller

Operation Timer Ready Flash

display

Auxiliary code

display

controller

Indoor unit

Duplicated master

remote controllers

Communication

error between

E09 — — 99

E10 — — CF

start error

02:Outdoor /

I/F

No indoor unit

during automatic

addressing

Capacity over /

I/F

Indoor unit

No. of connected

indoor units

Communication

error between

header and

follower units

Indoor unit

I/F

Outdoor header

units quantity error

Other line

I/F

connected during

automatic address

I/F

Error in number of

heat storage

master units

Reduction in

I/F

number of heat

storage units

I/F

communication

between outdoor

units

at storage units

Error in number of

Sending error in

(trouble with

reception)

I/F

Duplicated

follower outdoor

addresses

I/F

Decrease of No. of

connected outdoor

units

I/F

Follower outdoor

unit error

– 34 –

utdoor units O

communication

00:Capacity

over

01 ~:No. of

connected units

E15 E15 — 42

E16 E16

E18 — — 97, 99

ader units

00:No header

02:Two or more

E19 E19

line

01:Outdoor unit

of other

er line

connected

02:Indoor unit of

oth

E20 E20

02:No header

connected

00:Multiple

E21 E21

mber of nu

header units

its which

No. of outdoor

E22 E22 — 42

E23 E23 — 15

E25 E25 — 15

E26 E26

received signal

normally

tdoor unit

Detected

E28 E28

number

Installation Manual

Communication

error between

ontroller

Remote

indoor unit and

remote controller

(Detected at

E01 — — —

Remote

remote controller

side)

Remote controller

controller

Indoor unit

transmission error

Communication

error between

indoor unit and

remote controller

(Detected at

E02 — — —

E03 — — 97

indoor unit side)

Communication

circuit error

Indoor unit

between indoor /

outdoor unit

E04 — — 04

(Detected at

device

Judging

me na

Check code

AI-NET: Artificial Intelligence

IPDU: Intelligent Power Drive Unit

: Lighting, : Flashing, : Goes off

ing unit

receiv

Sensor block display of

Check code Wireless remote controller

AI-NET

Outdoor unit 7-

Wired

central

control

ent display

segm

remo

controller

Operation Timer Ready Flash

display

Auxiliary code

display

ALT: Flashing is alternately when there are two flashing LED.

SIM: Simultaneous flashing when there are two flashing LED.

list. the

SMMS High-Wall Type

Check method

On the wired remote controller, central control remote controller and the interface P.C. board of the outdoor

unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C.

board) to display the operation is provided. Therefore the operation status can be known. Using this self-

diagnosis function, a trouble or position with error of the air conditioner can be found as shown in the table

below.

Check code list

The following list shows each check code. Find the check contents from the list according to part to be

checked.

• In case of check from indoor remote controller: See “Wired remote controller display” in the list.

• In case of check from outdoor unit: See “Outdoor unit 7-segment display” in the list.

unit” in the list.

• In case of check from AI-NET central control remote controller: See “AI-NET central control display” in

• In case of check from indoor unit with a wireless remote controller: See “Sensor block display of receiving

indoor unit side)

No. of indoor

I/F

Decrease of No. of

indoor units

nits in which u

sensor has been

normally

E06 E06

Communication

I/F

circuit error

between indoor /

outdoor unit

Indoor unit •

(Detected at

outdoor unit side)

Duplicated indoor

I/F

unit addresses

– 33 –

unit

Duplicated

received

— E07 — —

indoor

addresses

E08 E08

33-EN

Page 85

36-EN

Installation Manual

device

Judging

name

eck code Ch

receiving unit

Sensor block display of

Operation Timer Ready Flash

central

AI-NET

control

display

Auxiliary code

segment display

remote

display

controller

01:TK1 sensor

Check code Wireless remote controller

Outdoor unit 7-

Wired

SMMS High-Wall Type

I/F

Oil level detective

temp sensor error

ror

02:TK2 sensor

error

03:TK3 sensor

04:TK4 sensor

H08 H08

I/F

Comp. 2 case

I/F

thermo operation

TD2 sensor

miswiring

Oil level detective

I/F

circuit error

I/F

Indoor unit

Indoor unit centre

TD3 sensor

miswiring

SIM

I/F

dress

unit duplicated

Outdoor unit line

SIM

its with priority

Duplicated indoor

duplicated

I/F

(Displayed in

SIM

indoor unit with

priority)

I/F

its with priority

Duplicated indoor

(Displayed in unit

other than indoor

SIM

I/F

Indoor unit

Group line in

individual indoor

unit with priority)

SIM

Indoor unit,

ess unset

Indoor unit group /

Addr

Indoor unit

unit

SIM

Indoor unit

capacity unset

SIM

Outdoor unit

SIM

capacity unset

h error

Outdoor unit type

mismatc

SIM

I/F

AI-NET,

Indoor unit

Duplicated central

control addresses

Too many heat

storage units

SIM

connected

– 36 –

stem error

ror er

05:TK5 sensor

error

01:TK1 oil circuit

02:TK2 oil circuit

H14 H14 — 44

H15 H15 — —

stem error

03:TK3 oil circuit

04:TK4 oil circuit

05:TK5 oil circuit

system error

L03 — — 96

H16 H16

H25 H25 — —

L04 L04 — 96

L05 — — 96

its with priority

No. of indoor

L06 L06

ge units

Number of heat

stora

connected

L07 — — 99

L08 L08 — 99

L09 — — 46

L10 L10 — 88

L17 — — 46

L26 L26

L20 — — 98

Installation Manual

Judging

name

eck code Ch

receiving unit

Sensor block display of

Operation Timer Ready Flash

central

AI-NET

control

display

Auxiliary code

Check code Wireless remote controller

Outdoor unit 7-

segment display

Wired

remote

display

SMMS High-Wall Type

controller

Indoor unit

ror

Indoor unit TCJ

sensor er

Indoor unit TC2

sensor error

Indoor unit TC1

ALT

F02 — — 0d

sensor error

ALT

F03 — — 93

IPDU

communication

error

ALT

Number of IPDU

(*1)

F01 — — 0F

E31 E31

I/F

device

I/F

Indoor unit

TE1 sensor error

TE2 sensor error

Indoor unit TA

sensor error

ALT TD1 sensor error I/F

ALT TD2 sensor error I/F

ALT

ALT TL sensor error I/F

ALT TO sensor error I/F

ALT

ALT TS1 sensor error I/F

01:TE1 sensor

02:TE2 sensor

F05 F05 — A1

F06 F06

F07 F07 — 18

F04 F04 — 19

F08 F08 — 1b

01:Comp. 1 side

F10 — — OC

F12 F12 — A2

ALT TH sensor error IPDU

02:Comp. 2 side

F13 F13

Outdoor unit temp.

03:Comp. 3 side

I/F

sensor miscabling

ALT

F15 F15 — 18

I/F

Outdoor unit

pressure sensor

(TE, TL)

miscabling (Pd,

Ps)

ALT

ALT TD3 sensor error I/F

ALT Ps sensor error I/F

I/F

IPDU

Compressor break

down

IPDU

Compressor

trouble (lock)

Indoor unit

Indoor unit other

error

Indoor unit

EEPROM error

SIM

ALT Pd sensor error I/F

IPDU

Current detect

circuit system

error

I/F

Comp. 1 case

thermo operation

TD1 sensor

I/F

miswiring

I/F

Low pressure

protective

operation

I/F

Oil level down

detective

protection

– 35 –

01:Comp. 1 side

02:Comp. 2 side

03:Comp. 3 side

01:Comp. 1 side

02:Comp. 2 side

H03 H03

03:Comp. 3 side

H04 H04 — 44

H05 H05 — —

H06 H06 — 20

H07 H07 — d7

01:Comp. 1 side

02:Comp. 2 side

03:Comp. 3 side

F23 F23 — 43

F24 F24 — 43

F16 F16 — 43

F22 F22 — B2

F29 — — 12

F31 F31 — 1C

H01 H01

H02 H02

35-EN

Page 86

38-EN

Installation Manual

3*:Motor lock

Outdoor unit fan

ror er

IPDU

IPDU error

Note: Ignore 0 to F

displayed in “*”

position.

ALT

tection

4*:Motor current

C*:TH sensor

error

P22 P22

ror

D*:TH sensor

E*:Inverter DC

ror

voltage er

device

Judging

name

eck code Ch

receiving unit

Sensor block display of

Operation Timer Ready Flash

central

AI-NET

control

display

tective circuit

Auxiliary code

0*:IGBT circuit

1*:Position

Check code Wireless remote controller

Outdoor unit 7-

segment display

Wired

remote

display

SMMS High-Wall Type

controller

error

IPDU

G-TR short

protection error

Comp. position

detective circuit

Other indoor unit

system error

ALT

01:Comp. 1 side

02:Comp. 2 side

03:Comp. 3 side

01:Comp. 1 side

02:Comp. 2 side

P26 P26

03:Comp. 3 side

P29 P29

(outdoor unit

fan)

AI-NET

communicati

system error

—— — 97 —

AI-NET

twork adapters

Duplicated

—— — 99 —

0D: Comp. 1 + Comp. 3 + Fan

0E: Comp. 2 + Comp. 3 + Fan

0F: Comp. 1 + Comp. 2

+ Comp. 3 + Fan

09: Comp. 1 + Fan

0A: Comp. 2 + Fan

0B: Comp. 1 + Comp. 2

+ Fan

05: Comp. 1 + Comp. 3

06: Comp. 2 + Comp. 3

07: Comp. 1 + Comp. 2

+ Comp. 3

01: Comp. 1

02: Comp. 2

03: Comp. 1 + Comp. 2

*1 Number of IPDU

04: Comp. 3

0C: Comp. 3 + Fan

08: Fan

– 38 –

Indoor unit

unit error)

ror er

(Group follower

ALT

P31 — — 47

indoor

Error in indoor unit

— — — b7 By alarm device ALT

oup gr

Installation Manual

— L31 — — — Extended I/C error I/F

Indoor unit

ror

Indoor fan motor

ALT

P01 — — 11

I/F

Discharge temp.

ALT

P03 P03 — 1E

TD1 error

High-pressure SW

01:Comp. 1 side

IPDU

stem operation sy

ALT

02:Comp. 2 side

03:Comp. 3 side

P04 P04

Phase missing

tection / Power de

I/F

Error in number of

heat storage units

Too many outdoor

connected

46 SIM

Number of heat

storage units

connected

L27 L27

I/F

its connected un

SIM

SIM No. of IPDU error I/F

Number of IPDU

L28 L28 — 46

L29 L29

Indoor unit

Indoor unit outside

interlock

SIM

it address

Detected indoor

L30 L30

device

Judging

name

eck code Ch

receiving unit

Sensor block display of

Operation Timer Ready Flash

central

AI-NET

control

display

Auxiliary code

Check code Wireless remote controller

Outdoor unit 7-

segment display

Wired

remote

display

SMMS High-Wall Type

controller

failure detection

ror

Inverter DC

voltage er

00:

(comp.)

01:Comp. 1 side

I/F

Inverter DC

ALT

02:Comp. 2 side

P05 P05

ror

voltage er

(comp.)

Inverter DC

03:Comp. 3 side

ror

voltage er

(comp.)

01:Comp. 1 side

IPDU, I/F

Heat sink overheat

error

ALT

02:Comp. 2 side

03:Comp. 3 side

P07 P07

Heat

storage unit

No heat storage

unit water error

ALT

ge address

Detected heat

stora

P09 P09

Indoor unit

overflow error

ALT

it address

Detected indoor

P10 P10

I/F

Indoor unit

ck detection

Indoor unit fan

motor error

Outdoor liquid

ALT

P12 — — 11

P13 P13 — 47

I/F

D2 error

Discharge temp.

ALT

TD3 error

ALT

error

ALT Gas leak detection I/F

4-way valve

I/F

ALT

inverse error

I/F

High-pressure

protective

operation

ALT

– 37 –

01:TS condition

P15 P15

02:TD condition

P17 P17 — bb

tdoor unit

Detected

number

P18 P18 — E2

P19 P19

P20 P20 — 22

37-EN

Page 87

40-EN

Installation Manual

Indoor unit

)

Outdoor unit

e.g., charged amount (15 kg)

– 40 –

≤ Concentration limit (kg/m

Total amount of refrigerant (kg)

Min. volume of the indoor unit installed room (m

Room A Room B Room C Room D Room E Room F

Warnings on Refrigerant Leakage

d with conventional individual air conditioners. If a single unit of the multi conditioner system is to

SMMS High-Wall Type

Check of Concentration Limit

The room in which the air conditioner is to be installed requires a design that in the event of

refrigerant gas leaking out, its concentration will not exceed a set limit.

The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of

ammonia, and is not restricted by laws to be imposed which protect the ozone layer. However, since it

contains more than air, it poses the risk of suffocation if its concentration should rise excessively.

Suffocation from leakage of R410A is almost non-existent. With the recent increase in the number of high

concentration buildings, however, the installation of multi air conditioner systems is on the increase

because of the need for effective use of floor space, individual control, energy conservation by curtailing

heat and carrying power etc.

Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant

compare

be installed in a small room, select a suitable model and installation procedure so that if the refrigerant

accidentally leaks out, its concentration does not reach the limit (and in the event of an emergency,

measures can be made before injury can occur).

In a room where the concentration may exceed the limit, create an opening with adjacent rooms, or install

ical ventilation combined with a gas leak detection device.The concentration is as given below.

mechan

The concentration limit of R410A which is used in multi air conditioners is 0.3 kg/m

E 1

▼ NOT

If there are 2 or more refrigerating systems in a single refrigerating device, the amou nts of refrigerant should

be as charged in each independent device.

▼ NOTE 2

1. No partition (shaded portion)

The standards for minimum room volume are as follows.

The possible amount of leaked refrigerant gas in rooms A, B and C is 10 kg.

e.g., charged amount (10 kg)

The possible amount of leaked refrigerant gas in rooms D, E and F is 15 kg.

For the amount of charge in this example:

vice de

Judging

Installation Manual

Check code name

eceiving unit r

Sensor block display of

entral c

AI-NET

control

ent

display

segm

Check code Wireless remote controller

Outdoor unit 7-

ntrol

device

SMMS High-Wall Type

Central

Error detected by TCC-LINK central control device

Operation Timer Ready Flash

display

cod

Auxiliary

indication

Sending error in

TCC-LINK

TCC-LINK central

C05 — — — —

pose pur

General-

TCC-LINK

al-purpose

CC-LINK central

control device

Receiving error in

control device

Batch alarm of

gener

equipment, I/F

equipment control

interface

TCC-LINK

nits

ower unit error

Decrease of No. of

indoor u

Group control

foll

– 39 –

— — (L20 is displayed.)

Differs according to error contents of unit with occurrence of alarm

C06 — — — —

C12 — — — —

P30

TCC-LINK: TOSHIBA Carrier Communication Link.

39-EN

Page 88

42-EN

Installation Manual

Filter sign lighting time

ODE NO. [01]) (C

DE NO. [01])

(CO

 NO CHANGE

 NONE [0000]

 NO CHANGE

 NONE [0000]

 150H [0001]

 2500H [0002]

 5000H [0003]

 10000H [0004]

etup (CODE NO. [06]) s

Detected temp. shift value

CODE NO. [06])

setup (

Detected temp. shift value

 NO CHANGE

 NO SHIFT [0000]

 NO CHANGE

 NO SHIFT [0000]

 +1°C [0001]

 +2°C [0002]

 +3°C [0003]

 +4°C [0004]

 +5°C [0005]

 +6°C [0006]

Incorporation of parts

sold separately

 Others ( )

sold separately

 Others ( )

– 42 –

[0005]

DE NO. [01])

(CO

Filter sign lighting time

 NO CHANGE

 NONE [0000]

 150H [0001]

 2500H [0002]

 5000H [0003]

 10000H [0004]

Indoor unit Indoor unit Indoor unit Indoor unit

SMMS High-Wall Type

 Confirmation of indoor unit setup

Prior to delivery to the customer, check the address and setup of the indoor unit, which has been installed

in this time and fill the check sheet (Table below). Data of four units can be entered in this check sheet.

Copy this sheet according to the No. of the indoor units. If the installed system is a group control system,

use this sheet by entering each line system into each installation manual attached to the other indoor units.

REQUIREMENT

This check sheet is required for maintenance after installation. Fill this sheet and then pass this Installation

Manual to the customers.

Room name Room name Room name Room name

Indoor unit setup check sheet

Model Model Model Model

Check indoor unit address. (For check method, refer to APPLICABLE CONTROLS in this manual.)

*In case of a single system, it is unnecessary to enter the indoor address. (CODE NO.: Line [12], Indoor [13], Group

entral control [03])

Line Indoor Group Line Indoor G roup Line Indoor Group Line Indoor Group

[14], C

Central control address Central control address Central control address Central control address

Various setup Various setup Various setup Various setup

hanged, respectively.

Have you changed lighting time of filter sign? If not, fill check mark [×] in [NO CHANGE], and fill check mark [×] in [ITEM]

if c

(For check method, refer to APPLICABLE CONTROLS in this manual.)

CODE NO. [01]) (

Filter sign lighting time

 NO CHANGE

 NONE [0000]

 150H [0001]

 2500H [0002]

 5000H [0003]

 10000H [0004]

Have you changed detected temp. shift value? If not, fill check mark [×] in [NO CHANGE], and fill check mark [×] in

CODE NO. [06])

NO CHANGE

setup (

Detected temp. shift value

 NO SHIFT [0000]



espectively.

ODE NO. [06])

setup (C

Detected temp. shift value

(For check method, refer to APPLICABLE CONTROLS in this manual.)

 NO CHANGE

[ITEM] if changed, r

 NO SHIFT [0000]

 +1°C [0001]

 +2°C [0002]

 +1°C [0001]

 +2°C [0002]

 +3°C [0003]

 +4°C [0004]

 +3°C [0003]

 +4°C [0004]

 +6°C [0006]

 +5°C

 +5°C [0005]

 +6°C [0006]

sold separately

Incorporation of parts

separately

sold

Incorporation of parts

 Others ( )

Installation Manual

Indoor unit

Outdoor unit

Refrigerant piping

Outdoor unit

Large room

Range above the density

limit of 0.3 kg/m

(countermeasures needed)

– 41 –

Important

Refrigerant piping

without a door, or an opening 0.15 % or larger than the respective floor spaces at the top or bottom of the door).

2. When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas (opening

SMMS High-Wall Type

3. If an indoor unit is installed in each partitioned room and the refrigerant piping is interconnected, the smallest

room of course becomes the object. But when a mechanical ventilation is installed interlocked with a gas

leakage detector in the smallest room where the density limit is exceeded, the volume of the next smallest room

becomes the object.

Medium room

Small

Very small room

room

Mechanical ventilation device - Gas leak detector

▼ NOTE 3

The minimum indoor floor area compared with the amount of refrigerant is roughly as follows:

(When the ceiling is 2.7 m high)

Range below the

density limit of

0.3 kg/m

(countermeasures

not needed)

10 20 30

Total amount of refrigerant

Min. indoor floor area

41-EN

Page 89

10. HOW TO REPLACE MAIN PARTS

Drain guide

Earth screw

10-1. Indoor Unit

No.QPart name

Front panel

Electric parts

assembly

Procedure

1) Stop operation of the air conditioner, and then pull out the power supply plug from the plug socket.

2) Open the suction grille, and then take off fixing screws of the front panel (4 pcs.).

3) Push the electric parts box with right thumb while pulling the both sides of the front panel.

1) Hang the hooking claws of the upper surface of the front panel (4 positions) to the rear plate, and then push a position at the center of the lower part of the discharge port.

2) Tighten 4 screws. * When hooking or pushing is insuffi-

cient, dewdrop or abnormal sound may be caused.

1) Perform work of item Q.

2) Take off fixing screws (2 pcs) of PMV cover, and then remove PMV cover.

3) Remove binding band (2 positions) fixing the sensor lead wires. (When mounting electric parts, fix the sensor lead wires again with bundling band. Put bundling band on the positions as before and fasten wires.)

4) Pull out TC1, TC2, TCJ sensors from sensor holder of hear exchanger. (Pay attention to mounting positions of each sensor when reassembling of electric parts. Be sure to apply marking, etc to TC2 and TCJ sensors before removing because their shapes are reassembled.)

5) Take off LED base fixing screw (1 pc) and remove LED base.

6) Remove terminal block cover, and then remove fan motor connector (5P), louver motor connector (5P), and PMV motor connector (6P) from microcomputer assembly.

7) Take off fixing screws (2 pcs) of electric parts box, pull out slightly the electric parts box toward you, and then remove drain guide.

8) Take off earth screws attached to end board of the heat exchanger.

9) Pull off the electric parts box toward you.

When mounting the electric parts box to the main unit, follow the reverse procedure of removing. Return sensors and lead wires to the original positions according to the diagram.

Remarks

Installation place

Claw

Push

Hooking claws at upper side (4 positions)

Screw Screw

LED base fixing screw

TCJ sensor

Lead wire

Bind band

Push

PMV cover

Screws

Drain guide

Earth screw

LED base

Screw (Fixing for terminal block cover)

Electric parts hooking claw

Terminal block cover

TC2 sensor

P.M.V. motor lead

TC1 sensor

Fan motor connector

Louver motor connector

PMV motor connector

Earth screw

Fixing screws for electric parts box

Page 90

No.SPart name

Procedure

Remarks

PMV motor

Use spanners to remove PMV motor. As the pipes are deformed, do not use

monkey spanners. When there is 100 to the ceiling, use a spanner below mm.)

1) Perform work of item

2) Take off fixing screws (2 pcs) of PMV cover, and then remove PMV cover.

3) Remove connector (6P, Blue) for PMV motor from the electric parts box.

4) Take off bundling band of PMV motor lead wires.

5) Using a spanner, remove PMV motor.

Draw out lead wires of PMV motor from positions same to original positions before removing.

Screw at PMV main unit side (14mm spanner)

Screw at PMV motor side (19mm spanner)

Max. 150

Max. 160

Horizontal grille

1) Remove shaft of the horizontal grille from the rear plate. (First remove the left shaft, and then remove the other shafts while sliding the horizontal grille leftward.)

Bind band

Ground lead wire

P.M.V. lead wire

Page 91

No.UPart name

Procedure

Remarks

Heat exchanger

1) Perform work of item R.

2) Remove the pipe holder from the rear side of the main unit.

3) Take off fixing screws (2 pcs.) at the left side of the end plate of the heat exchanger.

4) Take off fixing screws (2 pcs.) at the right side of the heat exchanger.

Pipe holder

Fixing screws

Bearing 1) Perform works of items Q, X-4), and X-

5), and then remove bearing from the bearing base.

In case of shooting-out of bearing part from the housing, push into the specified position and incorporate in the main unit.

Fixing screws

Bearing base

Bearing

Drain pipe

Page 92

No.

Part name

Procedure

Remarks

Fan motor

1) Perform work of item R.

2) Perform work of item T.

3) Loosen the set screw of the cross-flow fan from the discharge port.

4) Take off fixing screws (2 pcs) to remove the motor band (Right).

5) Pull out the fan motor outward.

Drawing port of fan motor lead wires should be this position.

Determine the lead drawing port position so that motor band

( )

(Right) does not come to contact with fan motor drawing port.

Assemble the fan motor as shown below.

Motor band (Right)

Fixing screws

Cross-flow fan

Draw out fan motor lead wire from here.

1) Perform works of items R and T.

2) Take off fixing screws (2 pcs.) at the left side of the end plate of the heat exchanger, and then take off fixing screws (2 pcs.) of the bearing base.

3) Make the left side of the heat exchanger float slightly, and then remove the bearing base.

4) Loosen set screw of the cross-flow fan from the discharge port.

5) Take off fixing screws (2 pcs.) to remove the motor band (Right).

Set screw

Cross-flow fan

Motor band (Right)

Fixing screws

* Remove set screw from gap of thermal

insulator.

Page 93

No.

Part name

Procedure

Remarks

Cross-flow fan

6) Slide the fan motor rightward to remove it.

7) Take off fixing screws (2 pcs.) from fixing support at right side of the heat exchanger.

8) Lift up the left side of the heat exchanger toward you, and then remove the crossflow fan.

a) When assembling the bearing base, check

the drain pipe is surely incorporated to the rear plate. (Otherwise water leak may be caused.)

b) When assembling the fan motor, remove

fan motor rubber (shaft center side), mount it in the position in the following figure, and then mount the fan motor.

• Mount the cross-flow fan so that the right

end of joint which is first one from right of the cross-flow fan is set at position

70.5mm apart from wall of the rear side of the main unit.

Joint

• Mount the cross-flow fan so that D-cut

part at the center comes to the mounting hole of set screw.

• Determine the position of fan motor as

shown in the figure for mounting. (Perform work of item

c) When attaching motor band (Right),

perform work of item b), set the hooking claws (2 positions) of the motor band (Right) in the main unit, and then perform reverse procedure of item 6).

Cross-flow fan

Central D-cut part

Motor band (Right)

Hooking claws (2 positions)

Page 94

11. REPLACEMENT OF SERVICE INDOOR P.C. BOARD

Model type

MMK-AP ∗∗∗ 4MH series

P.C. board model

MCC-1510

[Requirement when replacing the service indoor P.C. board assembly]

In the non-volatile memory (hereinafter said EEPROM, IC10) installed on the indoor P.C. board before replacement, the type and capacity code exclusive to the corresponding model have been stored at shipment (AUTO/ MANUAL) mode have been stored at installation.

Replace the service indoor P.C. board assembly according to the following procedure.

After replacement, make sure that the indoor unit address is set correctly and also the refrigerant cycle is working correctly by test operation.

CASE 1

Before replacement, power of the indoor unit can be turned on and the setup data can be readout by the wired remote controller.

Read EEPROM data (see r1)

Replace service P.C. board & power ON (see r2)

Write the read data to EEPROM (see r3)

Power reset

(If in group operation, reset the power for all indoor units which are connected to the remote controller.)

Case 2

Before replacement, the setup data can not be read out by the wired remote controller.

Replace service P.C. board & power ON (see r2)

Write the data such as “Option input selection” setup to EEPROM (see r3)

(According to the customers’ information)

Power reset

Page 95

H1 Readout of the setup data from EEPROM

(Data in EEPROM contents, which have been changed at the local site, are read out together with data in EEPROM set at shipment from the factory.)

1. Push

, CL and

(Corresponded with No. in remote controller as shown below picture.)

• When group operation, the header indoor unit address is displayed at the first time. In this time, the

CODE No. (DN)  is displayed. The fan of the second indoor unit operates and the louver starts swinging if any.

2. Every pushing [Unit, Louver Specify the indoor unit No. to be replaced.

3. Using the set temperature / buttons, the CODE No. (DN) can be moved up and down one by one. 3

4. First change the CODE No. (DN) from  to  . (Setting of filter sign lighting time.)

Make a note of the set data displayed in this time.

5. Next change the CODE No. (DN) using the set temperature / buttons.

Also make a note of the set data.

6. Repeat item 5. and made a note of the important set data as shown in the below table.

•  to )) are provided in the CODE No. (DN). On the way of operation, DN No. may skip.

7. After finishing making a note, push (Approx. 1 minute is required to be able to use the remote controller.)

TEST

button of the remote controller at the same time for 4 seconds or more. 1

UNIT LOUVER

] button, the indoor unit address in the group are displayed successively. 2

TEST

button to return to the usual stop status. 4

Minimum requirements or CODE No.

No.

SAVE

SWING/FIX

CODE No.

ON / OFF

VENT

UNIT LOUVER

Contents

Indoor unit capacity

Refrigerant line address

Indoor unit address

Group address

3 4

FILTER RESET

SET DATA

TEMP.

TEST

SETTING

UNIT

R.C.

TIMER SET MODEFAN

TIME

SET

2 1

H2 Replacement of service P.C. board

1. Replace the P.C. board with a service P.C. board. In this time, setting of jumper line (cut) or setting of DIP switch on the former P.C. board should be reflected on the service P.C. board. Refer to the following table about DIP switch setting and drawing of P.C. board parts layout.

2. It is necessary ti set indoor unit to be exchanged : Remote controller = 1 : 1 Based upon the system configuration, turn on power of the indoor unit with one of the following items.

1) Single (Individual) operation

Turn on power of the indoor units and proceed to H3.

2) Group operation

A) In case that power of the exchanged indoor unit only can be turned on.

Turn on power of the exchanged indoor unit only and proceed to H3.

B) In case that power of the indoor units cannot be turned on individually. (CASE 1 )

a) Remove temperature the group wire connected to the terminal blocks A and B of the exchanged

indoor unit

b) After connecting the remote controller wire only to the removed terminal block, turn on power of

the indoor units and proceed to H3.

• When the above methods cannot be used, follow at the CASE 2 below.

Capacity of the indoor unit is necessary to set the revolutions of the fan.

Page 96

C) In case that power of the indoor units cannot be turned in individually. (CASE 2 )

DIP switch (SW01, SW02)

EEPROM (IC10)

<MCC-1510>

SW01

IC10

2 1

SW02

J01

1 2

a) Remove all CN41 connectors of the indoor units in the same group except those of the exchanged

indoor unit.

b) Turn on power of the indoor units and proceed to H3.

• After H3 operation has finished, be sure to return the temporarily removed group wire or CN41

connector to the original connection.

Indoor unit

P.C. board

(Case 1)

AB AB A×B

Group wire

Indoor unit

P.C. board

CN41

(Case 2)

AB AB

Remove CN41 connectors of the indoor units other than the units to be changed in the same group.

P.C. board parts layout drawing

Indoor unit

Group wire

Service P.C. board of the unit to be changed

Remove the group wire of the terminal blocks A and B of the

Remote

controller

Remote

controller

changed indoor unit, and then install the remote controller only.

Service P.C. board of the unit to be changed

Method of DIP switch setting

SW01

Bit 1

Bit 2

Bit 1

SW02

Bit 2

1 : Match to set up contents of P.C. board before replacement.

∗

Terminator resistor (for central control)

Remote controller A/B selection

Custom / Multi model selection

No use

Selected content

MMK-AP

4MH series

∗∗∗

∗

OFF

At shipment

OFF (Without terminator)

OFF (A selection)

ON (Multi model)

OFF

Page 97

H3 Writing of the setup contents to EEPROM

(The contents of EEPROM installed on the service P.C. board have been set up at shipment from the factory.)

1. Push

, CL and

(Corresponded with No. in remote controller as shown below picture.) (The UNIT No. is displayed.) In this time, the CODE No. (DN)  is displayed.

The fan of the indoor unit operates and the louver starts swinging if any.

2. Using the set temperature / buttons, the CODE No. (DN) can be moved up and down one by one. 2

3. First set the capacity of the indoor unit. (Setting the capacity writes the data at shipment from the factory in EEPROM.)

1) Using the set temperature / buttons, set  to the CODE No. (DN). 2

2) Using the timer time / buttons, set the capacity. 3

(For example, 0005 for MMK-AP0124MH). Refer to the attached table.

3) Push

4) Push

button. (OK when the display goes on.) 4

TEST

(Approx. 1 minute is required to start handling of the remote controller.)

4. Next write the contents that have been written at the installation such as the address data into EEPROM. Repeat the above procedure 1.

5. Using the set temperature / button, set  to the CODE No. (DN). 2 (Setup of lighting time of filter sign.)

6. The contents of the displayed setup data in this time should be agreed with the contents in the previous memorandum in H1.

1) If data disagree, change the displayed setup data to that in the previous memorandum by the timer time

/ buttons, and then push

2) There is nothing to do when data agrees.

7. Using the set temperature / buttons, change the CODE No. (DN).

As same as the above 6., check the contents of the setup data and then change them to data contents in the previous memorandum in H1.

8. Then repeat the procedure 6. and 7.

9. After completion of setup, push

In a group operation, turn off the power supply once, return the group wires between indoor units and CN41 connectors as before, and then turn on power of all the indoor units. (Approx. 1 minute is required to be able to use of the remote controller.)

•  to )) are provided in the CODE No. (DN). On the way of operation, DN No. may skip.

When data has been changes by mistake and the data before change by pushing CL button if the CODE No. (DN) was not yet changed.

TEST

button of the remote controller at the same time for 4 seconds or more. 1

button to return to usual stop status. 5

button. (OK when the display goes on.)

TEST

button to return the status to the usual stop status. 5

button has been pushed, the data can be returned to

Page 98

CODE No. table (Please record the objective unit data at field)

Filter sign lighting time

Dirty state of filter

Central control address

Heating suction temp. shift

PRE-DEF indication selection

Cooling auto mode existence

Cooling only

Type

Indoor unit capacity (See below table)

Refrigerant line address

Indoor unit address

Group address

Temp. difference of automatic cooling/

heating selecting control points

Item

Memo

Be sure to set as 0008

At shipment

0001: 150 hour

0000: Standard

0099: Unfixed

0002: +2°C

0000: Standard

0001: No auto mode

cooling/heating

0000: Heat pump

0008: High wall type

According to capacity type

0099: Unfixed

0003: 3 deg

(Ts ± 1.5)

Automatic selection by connected outdoor unit

Automatic restart from power cut

Option input selection (CN80)

Thermo. output selection (T10 )

Input selection (T10 )

Sensor selection

Timer set (Wired remote controller)

Louver selection of cooling

Indoor unit capacity (CODE No. [11])

Setup data

0001∗

0001

0003

Model

Invalid

MMK-AP0074MH

MMK-AP0094MH

0000: None

0002: External emergency input

0000: Thermo. ON

0000: Operation input

0000: Available

0000: Standard

0005

MMK-AP0124MH

∗ Initial value of EEPROM installed on the supplied service P.C. board.

Page 99

12. EXPLODED VIEWS AND PARTS LIST

217

(For TCJ, TC2) (For TC1)

228

229

218

204

202

209

219

221

230

223

220

210

203

222

215

201

207

224

211

216

208

212

205

214

233

227

225

226

231

232

206

Page 100

Location

Part No. Description

MMK-AP

0074MH-E 0094MH-E 0124MH-E

0074MH-TR 0094MH-TR 0124MH-TR

201 43T00421 FRONT PANEL ASSY

202 43T09370 SUCTION GRILLE

203 43T03326 BACK BODY ASSY

204 43T80301 AIR FILTER

205 43T09371 HORIZONTAL LOUVER

206 43T70001 DRAIN HOSE ASSY

207 43T79301 CAP-DRAIN

208 43T21372 MOTOR, STEPPING

209 43T44370 REFRIGERATION ASSEMBLY

210 43T44371 DISTRIBUTOR ASSEMBLY

211 43T47340 PIPE DELIVERY

212 43T47341 PIPE SUCTION

214 43T11301 PIPE SHIELD

215 43T21354 MOTOR PMV

216 43T49320 PLATE SHIELD

217 43T19322 FIX-P-SENSOR

218 43T19321 FIX-P-SENSOR

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219 43T49317 RUBBER SEAL EVAPORATOR

220 43T49006 HOLDER FOR PLATE

221 43T22308 ASM-M-BEARING

222 43T39314 BASE BERING ASSY

223 43T20322 ASSY CROSS FLOW FAN

224 43T21368 FAN MOTOR, MF-340-30-1R

225 43T39315 BAND MOTOR(LEFT)

226 43T39303 BAND MOTOR-R

227 43T82310 INSTALLATION PLATE

228 43T69309 WIRELESS REMOCON, WH-2UE

229 43T83003 HOLDER, REMOTE CONTROL

230 43T85497 OWNER'S MANUAL

231 43T62318 TERMINAL COVER

232 43T07303 HOLDER PIPE

233 43T62319 COVER PMV ASSEMBLY

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100

Toshiba MMK-AP0074MH-E, MMK-AP0094MH-E, MMK-AP0124MH-E, MMK-AP0074MH-TR, MMK-AP0094MH-TR SERVICE MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual