Toshiba RAV-SM2242DT-TR, RAV-SM2802DT-TR, RAV-SM2802DT-E User Manual

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Page 1

FILE NO. A10-001

Revised: May, 2010

SERVICE MANUAL

SPLIT TYPE

INDOOR UNIT <DIGITAL INVERTER>

RAV-SM2242DT-E RAV-SM2802DT-E

RAV-SM2242DT-TR RAV-SM2802DT-TR

R410A

PRINTED IN JAPAN, Apr., 2010 ToMo

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CONTENTS

ORIGINAL INSTRUCTION................................................................................. 3

WARNING INDICATIONS ON THE AIR CONDITIONER UNIT.......................... 5

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

NEW REFRIGERANT (R410A) ........................................................................ 11

1. SPECIFICATIONS .................................................................................... 13

1-1. Indoor Unit......................................................................................................... 13

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)....................................... 15

2-1. Indoor Unit......................................................................................................... 15

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM .............................. 16

3-1. Indoor Unit......................................................................................................... 16

4. WIRING DIAGRAM ................................................................................... 17

4-1. Indoor Unit......................................................................................................... 17

4-2. Fan Characteristics .......................................................................................... 18

5. SPECIFICATIONS OF ELECTRICAL PARTS .......................................... 21

5-1. Indoor Unit......................................................................................................... 21

6. INDOOR CONTROL CIRCUIT.................................................................. 22

6-1. Indoor Controller Block Diagram ..................................................................... 22

6-2. Control Specifications...................................................................................... 23

6-3. Indoor Print Circuit Board................................................................................ 30

7. INDOOR UNIT TROUBLESHOOTING ...................................................... 32

7-1. Summary of Troubleshooting........................................................................... 32

8. REPLACEMENT OF SERVICE P.C. BOARD............................................ 51

8-1. Indoort Unit ....................................................................................................... 51

9. SETUP AT LOCAL SITE AND OTHERS .................................................. 55

9-1. Indoor Unit......................................................................................................... 55

9-2. Setup at Local Site / Others ............................................................................. 62

9-3. How to Set up Central Control Address Number ........................................... 64

10. ADDRESS SETUP .................................................................................... 66

10-1. Address Setup Procedure ................................................................................ 66

10-2. Address Setup & Group Control...................................................................... 67

10-3. Address Setup (Manual Setting from Remote Controller)............................. 69

11. OWNER’S MANIAL .................................................................................. 71

12. INSTALLATION MANUAL ........................................................................ 82

13. DETACHMENTS ..................................................................................... 102

11-1. Indoor Unit....................................................................................................... 102

14. EXPLODED VIEWS AND PARTS LIST .................................................. 106

12-1. Indoor Unit....................................................................................................... 106

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Original instruction

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

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

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service Person

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 (∗1)

Qualified service person (∗1)

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.

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.

and piping work as stipulated by the local laws and regulations, and he or

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Definition of Protective Gear

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

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

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

Work undertaken

All types of work

Electrical-related work

Work done at heights (50 cm or more)

Transportation of heavy objects

Repair of outdoor unit

Protective gloves “Safety” working clothing

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

Helmets for use in industry

Shoes with additional protective toe cap

Gloves to provide protection for electricians and from heat

Protective gear worn

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

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

[Explanation of indications]

Indication

Explanation

DANGER

WARNING

CAUTION

Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engineers and the third parties when an incorrect work has been executed.

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

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

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

[Explanation of illustrated marks]

Mark Explanation

Indicates prohibited items (Forbidden items to do)

The sentences near an illustrated mark describe the concrete prohibited contents.

Indicates mandatory items (Compulsory items to do)

The sentences near an illustrated mark describe the concrete mandatory contents.

Indicates cautions (Including danger/warning)

The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.

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Warning Indications on the Air Conditioner Unit

[Confirmation of warning label on the main unit]

Confirm that labels are indicated on the specified positions

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

Warning indication

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect all remote electric power supplies before servicing.

WARNING

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

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

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.

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Precaution for Safety

WARNING

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

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

water leaks and/or other problems.

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

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

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

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

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

Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws.

Use of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and/or a fire.

Only a qualified installer (∗1) or qualified service person (∗1) is allowed to undertake work at

General

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.

Do not touch the aluminum fin of the outdoor unit. You may injure yourself if you do so. If the fin must be touched for some reason, first put on

protective gloves and safety work clothing, and then proceed.

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

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

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

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

DENGER

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

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

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

Turn off

breaker.

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

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

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

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Execute

discharge

between

terminals.

Prohibition

Stay on

protection

WARNING

Check earth

wires.

Even if the circuit breaker has been set to the OFF position before the service panel is removed and the electrical parts are repaired, you will still risk receiving an electric shock.

For this reason, short-circuit the high-voltage capacitor terminals to discharge the voltage before proceeding with the repair work.

For details on the short-circuiting procedure, refer to the Service Manual. You may receive an electric shock if the voltage stored in the capacitors has not been sufficiently

discharged.

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.

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.

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

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

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

telephone wires.

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

Prohibition of

modification.

Use specified

parts.

Do not bring a child close to the equipment.

Insulating measures

No fire

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.

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with the electrical parts box cover of one or more of the indoor units and the service panel of the outdoor unit removed in order to find out exactly where the trouble lies, place "Keep out" signs around the work site before proceeding.

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

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

When repairing the refrigerating cycle, take the following measures.

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

refrigerant gas may catch fire.

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

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

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Refrigerant

Assembly/

Cabling

Insulator

check

Ventilation

Compulsion

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

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

For an air conditioner which uses R410A, never use other refrigerant than R410A. For an air conditioner which uses other refrigerant (R22, etc.), never use R410A. If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating

cycle and an injury due to breakage may be caused. Do not charge refrigerant additionally.

If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.

Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute vacuuming, and then newly recharge the specified amount of liquid refrigerant.

In this time, never charge the refrigerant over the specified amount. When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other

than R410A into the specified refrigerant. If air or others is mixed with the refrigerant, abnormal high pressure generates in the refrigerating

cycle resulted in cause of injury due to breakage. After installation work, check the refrigerant gas does not leak.

If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.

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

breakage or injury is caused.

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 2MΩ or more between the charge section and the non-charge metal section (Earth position).

If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side.

When the refrigerant gas leaks during work, execute ventilation.

If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant and the closed room full with gas is dangerous because a

shortage of oxygen occurs. Be sure to execute ventilation.

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.

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Page 9

Check after

repair

Do not

operate the

unit with the

valve closed.

Check after

reinstallation

Cooling check

Installation

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.

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

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

• The valve is opened.

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

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.

When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor, inverter or the areas around these parts to be repaired immediately after the air conditioner has been shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel.

If you fail to heed this warning, you will run the risk of burning yourself because the fan motor, reactor, inverter heat sink and other parts will be very hot to the touch.

In addition, before proceeding with the repair work, wear the kind of insulated heat-resistant gloves designed to protect electricians.

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

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

Do not install the air conditioner in a location that may be subject to a risk of expire to a combustible gas.

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

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

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

Install the circuit breaker where it can be easily accessed by the qualified service person (∗1).

Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner, otherwise it may cause imperfect combustion.

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Explanations given to user

• If you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF position, and contact a qualified service person to have the repairs done. Do not set the circuit breaker to the ON position until the repairs are completed.

Relocation

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

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

(∗1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”

Declaration of Conformity

Manufacturer: Toshiba Carrier Corporation

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

Authorized Nick Ball

Representative/TCF holder: Toshiba EMEA Engineering Director

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

Hereby declares that the machinery described below:

Generic Denomination: Air Conditioner

Model/type: RAV-SM2242DT-E, RAV-SM2802DT-E

RAV-SM2242DT-TR, RAV-SM2802DT-TR

Commercial name: Digital Inverter Series

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

Note: This declaration becomes invalid if technical or operational modifications are introduced without the

manufacturer’s consent.

Specifications

Model

RAV-SM2242DT-E

RAV-SM2802DT-E

RAV-SM2242DT-TR

RAV-SM2802DT-TR

Sound power level (dB)

Cooling Heating

74 74

75 75

74 74

75 75

Weight (kg)

160

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Page 11

New Refrigerant (R410A)

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

1. Safety Caution Concerned to New Refrigerant

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

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

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

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

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

2. Cautions on Installation/Service

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

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

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

3) In the installation time, use clean pipe materials and work with great attention so that water and others do not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc.

Use the clean pipes.

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

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

5) R410A refrigerant is azeotropic mixture type refrigerant.

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

3. Pipe Materials

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

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

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

1) Copper pipe

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

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

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

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

2) Joint

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

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

However clear impurities when using them.

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Page 12

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

Usage

Pipe flaring

Flaring by conventional flare tool

Tightening of flare nut

Evacuating, refrigerant charge, run check, etc.

Vacuum evacuating

Refrigerant charge

Gas leakage check

air conditioner installation

Existence of

new equipment

for R410A

Ye s ∗ (Note)

Ye s N o

Ye s Ye s

Ye s N o

R410A

Whether conventional

equipment can be used

Conventional air

conditioner installation

Whether

conventional equipment

can be used

Ye s

∗ (Note)

Ye s

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

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

General tools (Conventional tools can be used.)

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

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

2) Torque wrench 8) Spanner or Monkey wrench

3) Pipe cutter 9) Hole core drill

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

5) Pipe bender 11) Tape measure

6) Level vial 12) Metal saw

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

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

2) Thermometer 4) Electroscope

– 12 –

Page 13

1. SPECIFICATIONS

1-1. Indoor Unit

1-1-1. Concealed Duct High static pressure Type

Model

Cooling capacity (kW)

Heating capacity (kW)

Electrical characteristics

Appearance Main unit

Outer dimension Main unit Width (mm)

Total weight Main unit (kg)

Heat exchanger

Fan unit Fan Speed

Air filter

Controller (Sold Separately)

Sound pressure level H/M/L (dB•A)

Sound power level H/M/L (dB•A)

Connecting pipe Liquid side (mm)

Indoor unit

Outdoor unit

Power supply (V)

Indoor unit

Cooling

Heating

Maximum current

Fan

Standard air flow at 137Pa / (at Mid tap) (m³/min)

Motor (W)

External static pressure (H/M/L) (Pa)

Gas side (mm)

Drain port (mm)

Outdoor unit

Total EER

Indoor unit

Outdoor unit

Total COP

Indoor unit (A)

Outdoor unit (A)

Height (mm)

Depth (mm)

Running current (A)

Power consumption (kW)

Power factor (%)

Power supply (V)

Running current (A)

Power consumption (kW)

Power factor (%)

Power consumption (kW)

Energy efficiency class *

Power supply (V)

Running current (A)

Power consumption (kW)

Power factor (%)

Power supply (V)

Running current (A)

Power consumption (kW)

Power factor (%)

Power consumption (kW)

Energy efficiency class ∗

RAV-SM2242DT-E RAV-SM2802DT-E

RAV-SM2242AT8-E RAV-SM2802AT8-E

20.0 23.0

22.4 27.0

1 phase 220-240V~ 50Hz

5.25 – 4.81 5.25 – 4.81

1.12 1.12

97 97

3 phase 380-415V

9.83 – 9.00 12.33 – 11.29

6.08 7.63

94 94

7.20 (3.26 – 9.09) 8.75 (3.36 – 12.76)

2.78 2.63

1 phase 220-240V~ 50Hz

5.25-4.81 5.25-4.81

1.12 1.12

97 97

3 phase 380 – 415V

8.68 – 7.95 11.36 – 10.40

5.37 7.03

94 94

6.49 (2.57 – 7.45) 8.15 (2.57 – 11.01)

3.45 3.31

15.0 15.0

18.0 20.0

Zinc hot dipping steel plate

470 470

1380 1380

1250 1250

160 160

Finned tube

Centrifugal fan Centrifugal fan

3600 4200

370 × 3 370 × 3

196 / 137 / 69 196 / 137 / 69

None (Local procure) None (Local procure)

RBC-AMT32E, AMS41E, AS21E2

54 55

74 75

28.6 28.6

12.7 12.7

32 (VP25)

– 13 –

Page 14

1-1-1. Concealed Duct High static pressure Type (Contined)

Model

Cooling capacity (kW)

Heating capacity (kW)

Electrical characteristics

Appearance Main unit

Outer dimension Main unit Width (mm)

Total weight Main unit (kg)

Heat exchanger

Fan unit Fan Speed

Air filter

Controller (Sold Separately)

Sound pressure level H/M/L (dB•A)

Sound power level H/M/L (dB•A)

Connecting pipe Liquid side (mm)

Indoor unit

Outdoor unit

Power supply (V)

Indoor unit

Cooling

Heating

Maximum current

Fan

Standard air flow at 137Pa / (at Mid tap) (m³/min)

Motor (W)

External static pressure (H/M/L) (Pa)

Gas side (mm)

Drain port (mm)

Outdoor unit

Total EER

Indoor unit

Outdoor unit

Total COP

Indoor unit (A)

Outdoor unit (A)

Height (mm)

Depth (mm)

Running current (A)

Power consumption (kW)

Power factor (%)

Power supply (V)

Running current (A)

Power consumption (kW)

Power factor (%)

Power consumption (kW)

Energy efficiency class *

Power supply (V)

Running current (A)

Power consumption (kW)

Power factor (%)

Power supply (V)

Running current (A)

Power consumption (kW)

Power factor (%)

Power consumption (kW)

Energy efficiency class ∗

RAV-SM2242DT-TR RAV-SM2802DT-TR

RAV-SM2244AT8-E RAV-SM2804AT8-E

20.0 23.0

22.4 27.0

1 phase 220-240V~ 50Hz

5.25 – 4.81 5.25 – 4.81

1.12 1.12

97 97

3 phase 380-415V

9.83 – 9.00 12.33 – 11.29

6.08 7.63

94 94

7.20 (3.26 – 9.09) 8.75 (3.36 – 12.76)

2.78 2.63

1 phase 220-240V~ 50Hz

5.25 – 4.81 5.25 – 4.81

1.12 1.12

97 97

3 phase 380-415V

8.68 – 7.95 11.36 – 10.40

5.37 7.03

94 94

6.49 (2.57 – 7.45) 8.15 (2.57 – 11.01)

3.45 3.31

15.0 15.0

18.0 20.0

Zinc hot dipping steel plate

470 470

1380 1380

1250 1250

160 160

Finned tube

Centrifugal fan Centrifugal fan

3600 4200

370 × 3 370 × 3

196 / 137 / 69 196 / 137 / 69

None (Local procure) None (Local procure)

RBC-AMT32E, AMS41E, AS21E2

54 55

74 75

28.6 28.6

12.7 12.7

32 (VP25)

– 14 –

Page 15

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

2-1. Indoor Unit

RAV-SM2242DT-E, RAV-SM2802DT-E / RAV-SM2242DT-TR, RAV-SM2802DT-TR

Attention

set a drain trap on its way as shown below figure.

1. Be sure to set a check port at the right of air discharge port.

2. Set to slope the drain piping downward at 1/100 and be sure to

maintained easily such as a suction grills.

(If there is no air filter, dusts are blocked in the air heat exchange

So be sure to set an air filter(local arrangements) in the position

is shrouded by oil smoke, such as kitchen or mechanical factory.

3. Please avoid the installation on the place where oil disperses or

4. Indoor unit do es not have air filter its inside.

and it may cause failure or water leak in air-conditioner.)

5. Please hang the main unit horizontally.

0100

Check pane

because g arbage in dr ain piping piles up ea sily in dr ain trap

Be sure t o set the pl ug and to make it to be able to cleaning,

138

(Hanging bolt mounting pitch)

or more

100

1260

or mor

250

Air suction port

Plug

(Check and cleaning port)

Screw hole for duct mounting(10-M6)

3540629

Electric parts box

)

Power supply/communication piping port( 26)

(Under electric parts box

250250250

190

(Unit:mm)

Refrigerant pipe connecting por

(Liquid side 12.7 Flared)

132

125

(Hanging bolt mounting pitch)

150200

128

Drain pipe connecting port(V25)

Taper screw for R1,25.4 pipes

(Gas side Brazed)

Refrigerant pipe connecting port

(4-12 × 92)

Hole for hanging bolt

190

2 2

28.6

Gas side

Diameter of

connecting pipe

12.7

Liquid side

22.2

Gas sid

12.

Diameter of

pipe connecting port

Liquid side

and therefore please use the accessory joint for installation.

The diameter of connecting gas side on the indoor unit is 22.2

0 25

Service space

or more

200

Service space

1000 or more

200

250

Air discharge port

Screw hole for duct mounting(10-M6)

0 60

Space required for installation and serving

Check port

37065

– 15 –

Page 16

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

3-1. Indoor Unit

RAV-SM2242DT-E, RAV-SM2802DT-E RAV-SM2242DT-TR, RAV-SM2802DT-TR

Dimension table

Indoor unit

SM224, SM280 type

Distributor (Strainer incorporated)

TC sensor

Refrigerant pipe at liquid side ØB

Outer diameter of refrigerant pipe

Gas side ØA Liquid side ØB

28.6 12.7

Indoor unit

TCJ sensor

Air heat

exchanger

Heating Cooling

Refrigerant pipe at gas side ØA

To outdoor unitTo outdoor unit

– 16 –

Page 17

4. WIRING DIAGRAM

4-1. Indoor Unit

RAV-SM2242DT-E, RAV-SM2802DT-E RAV-SM2242DT-TR, RAV-SM2802DT-TR

FILTER

EXCT

PNL

CN080

(GRN)

1221

(BLK)

CN101

(RED)

CN102

1221

(YEL)

CN104

(RED)

CN030

CN033

(GRN)

(BLU)

CN068

(Option)

LUL

397

5 1 3

RY007

FAN

CN083(WHI)

RED

spark killer

43F2

RED

spark killer

43F1

(WHI)

CN070

(RED)

CN073

OPTION

CN060(WHI)

FAN

MCC-140

for Indoor Unit

circui

supply

Power

Control P.C. Board

RY001

DRIVE

(WHI)

CN032

456 121 532 4 6 3

CN061(YEL)

CN02

CN075

(WHI)

6 1 2 5

56 4

CN074(WHI)

54321

32 41 5

RY002

RY005

RY006

RY004

CN304(GRY)

WHIWHI

WHI

CN309

(YEL)

111

T5.0A 250V

Fuse

WHI

RED ACIN

CN067(BLK)

CN066(WHI) CN041(BLU) CN050(WHI)

BLK

321

#250

FASTON N

RED WHI BL

#250

FASTO

Earth

Screw

Indoor Unit

ORN

F1 F2 F3 F

ORN

43F1

)

CN01

(WHI)

(YEL

6531 2 4

421 3 5 6

5 432

CN051

(RED)

MCC-1520

Sub P.C.Boar

5 421 3

BLK BLK

6531 2 4

42135

Adapte

TCC-LINK

CN040

U3 U4

(Option)

ORN

43F2

1 2

(Option)

(BLU)

TCC-LINK Adapte

RED

ORN

A B

Remote

Controller

NL3L2L1

RED

T10A,250V

RED

43F2

43F1

RED

#187

FASTO

RED

231

Power Supply

380-415V 3N 50H

Earth

Scre

Outdoor Unit

Note

YEL BLU

FM1

FAN1

(WHI)

GRY

31 2

21 3

REDGRY

RED

WHI

ORN

BLU

F1 F2 F3 F4

YEL

FM2

FAN2

(BLU)

GRY

RED

1 23

WHI REDGRY

WHI

ORN

BLU

F1 F2 F3 F4

YEL

FM3

FAN3

(RED)

GRY

321

3 21

RED

WHI

)

(WHI

CN100

73 5

3 75

MCC-1263

WHI

RED

S(N)R(L)

Indoor Fan

Power Supply

Earth

Scre

Indoor Unit

220-240V 50Hz

Letter at inside indicates the terminal number.

4.When installing the drain pump connect

2.A dotted line and broken line indicate the wiring at site.

3. indicates the control P.C board.

1. indicates the terminal block.

the froat switch connector to CN030 connector.

exchange the lead wire of arrow( ) position after check the terminal

number as figure and lead wire's color of fan motor

5. A position is connected to terminal block when change to static pressure.

Setting from factory

69 (7)

137 (14)

YEL

BLU

F3F

196 (20)

Parts nam

Fan Motor Control Relay

Fuse fo r Fan MotorDPDrain Pump Motor

Louver Control Relay

Drain Control Relay

Fan Motor Control Relay

Temp sensor

Indoor temp sensor

TransformerRCRunning Capacitor

ORN

Fan Motor

FM1 3

Symbol

TC,TCJ

RY005 007

F1 3

RY001

RY002

43F1,43F2

BLU

YEL

ORN

49F

wiring diagram

Fan motor inside

WHI

BLK

protection switch

Motor over heating

RED

GRY

COLOR

YEL:YELLOW

WHI:WHITE

RED:RED

IDENTIFICATIO

GRY:GRAY

ORN:ORANGE

BLU:BLUE

BLK:BLACK

GRN:GREEN

PNK:PINK

BRW:BROW

Pa (mmAg)

Static pressure

wiring

Fan motor

No.

Terminal

– 17 –

Page 18

4-2. Fan Characteristics

Current value as a criterion, adjust the air volume value to become within the range of the chart below.]

< RAV-SM2242 type >

7.5

6.5

5.5

Current of fan motor (A)

4.5

300

250

200

150

100

External static pressure (Pa)

2880 3200 3600 4000

Lower limit of air volume

Standard air volume: 3600m³/h

30002800 3400 3800 4200 4400

4320

Air volume (m³/h)

Upper limit of air volume

High static pressure tap (50Hz)

Medium static pressure tap (50Hz)

Low static pressure tap (50Hz)

High static pressure tap (50Hz)

Medium static pressure tap (50Hz)

Low static pressure tap (50Hz)

– 18 –

Page 19

< RAV-SM2802 type >

Current of fan motor (A)

8.5

7.5

6.5

5.5

4.5

350

300

250

200

150

Standard air volume: 4200m³/h

High static pressure tap (50Hz)

Medium static pressure tap (50Hz)

Low static pressure tap (50Hz)

100

External static pressure (Pa)

34003200 3800 4200 4600 5000 5200

3360 3600 4000 4400 4800

Lower limit of air volume Upper limit of air volume

Air volume (m³/h)

5040

High static pressure tap (50Hz)

Medium static pressure tap (50Hz)

Low static pressure tap (50Hz)

REQUIREMENT

Add a air volume damper to the air supply duct, and adjust the air volume in the range from 80% to 120% of the standard air volume.

– 19 –

Page 20

n Wire connection change of fan motor

This duct is composed of 3 fan motors.

To change external static pressure by duct resistance, connect the 3 connectors of the orange lead wires that are connected to the underside of the fan tap changing terminal block to the same number (F1, F2 or F3) terminal.

The wires of the fan motor has been connected to (F2) [External static pressure 137Pa (14mmAq)] as factory default.

Low static pressure (F1)

Fan motor Fan motor Fan motor

BLU

ORG

YEL

F1F2F3F

ORG

FAN3

BLU

YEL

F1F2F3F

ORG

FAN2

Standard (Middle) static pressure (F2)

Fan motor Fan motor Fan motor

BLU

YEL

F1F2F3F

ORG

FAN3

BLU

YEL

F1F2F3F

ORG

FAN2

High static pressure (F3)

Fan motor Fan motor

BLU

YEL

ORG

YEL

BLU

ORG

Fan motor

BLU

YEL

F1F2F3F

ORG

BLU

YEL

F1F2F3F

ORG

BLU

YEL

ORG

FAN1

Fan tap changing terminal block

ORG

FAN1

ORG

YEL: Yellow BLU: Blue ORG: Orange

Electrical control box

Control

P.C. board

2P terminal block

4P terminal block

3P terminal block

F1F2F3F

Terminal block No.

ORG

FAN3

F1F2F3F

Fan motor wiring

Yellow

Low static pressure

Blue

Middle static pressure

Orange

High static pressure

ORG

FAN2

F1F2F3F

FAN1

ORG

External static pressure

Pa (mmAq)

69 (7)

137 (14)

196 (20)

Remarks

Factory default

∗ Do not use F4.

NOTE

When the external static pressure is changed, write down the static pressure once change in the wiring diagram of the indoor unit is made.

– 20 –

Page 21

5. SPECIFICATIONS OF ELECTRICAL PARTS

5-1. Indoor Unit

RAV-SM2242DT-E, RAV-SM2802DT-E RAV-SM2242DT-TR, RAV-SM2802DT-TR

No.

Parts name

Fan motor

TA sensor

TC sensor

TCJ sensor

Type

STF-200-370-4AR

Lead wire length : 818mm

Ø6 size lead wire length : 2000mm Vinyl tube (Black)

Ø6 size lead wire length : 2000mm Vinyl tube (Red)

Specifications

Output (Rated) 370 W

10 kΩ at 25°C

– 21 –

Page 22

6. INDOOR CONTROL CIRCUIT

6-1. Indoor Controller Block Diagram

RAV-SM2242DT-E, RAV-SM2802DT-E / RAV-SM2242DT-TR, RAV-SM2802DT-TR

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

Indoor unit #1 (Header)

Network adapter (Option)

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

X Y

AI net

communication

circuit

Remote controller

DC5V

Power supply

circuit

Transformer

communication

circuit

CPU

H8/3687

Switch

set

Wired (Simple) Master remote controller

Display part

Indoor control P.C. board (MCC-1403)

DC20V

Power supply

circuit

(Max. 2 units)

LCD

LED

Remote controller

communication

circuit

Remote controller

communication

circuit

DC5V

DC12V

CPU

DC5V

Power supply

Driver

Function

setup

Key switch

circuit

CPU

H8/3039

CN2

CN1

Display part

LCD

Power supply

circuit

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

Schedule timer

Driver

LCD

CPU

Secondary

DC5V

(Follower)#3(Follower)

Same as

left ∗2

Function

setup

Key switch

battery

Same as

left ∗2

Central control

remote controller

(Option)

Drain pump

(Sold separately)

Indoor

fan motor

Transformer

Fan motor

relay circuit

Outside output

START ALARM READY

THERMO ON

COOL

HEAT

FAN

AC synchronous

signal input circuit

123

Outdoor unit

Serial send/

receive circuit

123

Outdoor

unit

Max. 8 units are connectable. ∗1

∗1 However when mounting a network adapter while 2 wired (simple) remote controllers are connected,

Max. 7 units are connectable.

∗2 A network adapter is mounted to only 1 unit.

∗3 Connection of schedule timer to the simple remote controller is unavailable.

123

Outdoor

unit

– 22 –

Page 23

6-2. Control Specifications

No.

When power supply is reset

Operation mode selection

Item

Outline of specifications

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

and the control is selected according to the distinguished result.

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

Remote controller

command

STOP

FAN

COOL

HEAT

AUTO

Air conditioner stops.

Fan operation

Cooling operation

Heating operation

• COOL/HEAT operation mode is automatically selected by Ta, Ts and To for operation.

• The operation is performed as shown in the following figure according to Ta value at the first time only. (In the range of Ts + + 1, Setup air volume operation continues.)

Control outline

α –1 < Ta < Ts + α

Remarks

Ta: Room temp. Ts: Setup temp. To: Outside temp.

Cooling

+1.0

Ts +

(˚C)

•

α is corrected according to the outside temperature.

Outside temp.

24 > To ≥ 18°C

-1.0

No To

To ≥ 24°C

To < 18°C

To error

operation

Setup air volume operation

• Setup air volume

Heating operation

Correction value (a)

–1K

+1K

K = deg

– 23 –

Page 24

No.

Item

Room temp. control

Outline of specifications

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

Wired type

COOL

18 to 29

HEAT

18 to 29

AUTO

18 to 29

Remarks

Automatic capacity control

(GA control)

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

Setup data

Setup temp. correction

0246

+0°C +2°C +4°C +6°C

Setup air volume operation

Indoor formation

1-way Air Discharge Cassette Type 2-way Air Discharge Cassette Type Concealed Duct Standard Type High Wall Type Under Ceiling Type

Floor Standing Concealed Type Floor Standing Type

Setup data

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

2) Cooling operation Every 90 seconds, the room temperature difference

between temperature detected by Ta and Ts and the varied room temperature value are calculated to obtain the correction value of the frequency command and then the present frequency command is corrected.

Ta (n) – Ts (n) : Room temp. difference n : Counts of detection Ta (n-1) – Ts (n) : Varied room temp. value n – 1 :

Counts of detection of 90 seconds before

3) Heating operation Every 1 minute (60 sec.), the room temperature

difference between temperature detected by Ta and Ts and the varied room temperature value are calculated to obtain the correction value of the frequency command and then the present frequency command is corrected.

Ts (n) – Ta (n) : Room temp. difference n : Counts of detection Ta (n) – Ta (n – 1) : Varied room temp. value n – 1 : Counts of detection of 1 minute before

Shift of suction temperature in heating operation

NOTE)

In case that Low volume is set, the maximum frequency is restricted to approx. [SB].

– 24 –

Page 25

No.

Automatic cooling/ heating control

Item

Outline of specifications

1) The judgment of selecting COOL/HEAT is carried out

as shown below. When exceeding +1.5 against Tsh 10 minutes and after thermo.-OFF, heating operation (Thermo. OFF) exchanges to cooling operation.

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

Remarks

Tsc: Setup temp. in

cooling operation

Tsh: Setup temp. in

heating operation + temp. correction of room temp. control

Cool air discharge preventive control

Ta (˚C)

Cooling

+1.5

Tsc

Tsh

(Cooling OFF)

(Cooling ON)

-1.5 Heating

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

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

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

1) In heating operation, the indoor fan is controlled based on the detected temperature of Tc sensor or Tcj sensor. As shown below, the upper limit of the revolution frequency is restricted.

However B zone is assumed as C zone for 6 minutes and after when the compressor activated.

In defrost operation, the control value of Tc or Tcj are shifted by 6°C.

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

Tc Tcj

(˚C)

B zone

OFF

A zone

– 25 –

Page 26

No.

Freeze preventive control (Low temperature release)

Item

Outline of specifications

1) The cooling operation is performed as follows based on the detected temperature of Tc sensor or Tcj sensor.

When [J] zone is detected for 6 minutes (Following figure), the commanded frequency is decreased from the real operation frequency.

After then the commanded frequency changes every 30 seconds while operation is performed in [J] zone.

In [K] zone, time counting is interrupted and the operation is held.

When [ I ] zone is detected, the timer is cleared and the operation returns to the normal operation.

If the commanded frequency becomes S0 because the operation continues in [J] zone, the return temperature A is raised from 5°C to 12°C until [ I ] zone is detected and the indoor fan operates with [Fan] mode.

(˚C)

Remarks

Tc, Tcj:

Indoor heat exchanger sensor temperature

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

• When Q or R is established 5 minutes after

activation.

Tcn ≤ Tc (n – 1) – 5

Tcn < Tc (n – 1) – 1 and Tcn ≤ Ta < 5°C

Tcn:

Tc temperature when 5 minutes elapsed after activation

Tc (n – 1):

Tc temperature at start time

– 26 –

Page 27

No.

High-temp. release control

Item

Outline of specifications

1) The heating operation is performed as follows based on the detected temperature of Tc sensor or Tcj sensor.

• When [M] zone is detected, the commanded frequency

is decreased from the real operation frequency. After then the commanded frequency changes every

30 seconds while operation is performed in [M] zone.

• In [N] zone, the commanded frequency is held.

• When [L] zone is detected, the commanded fre-

quency is returned to the original value by approx. 6Hz every 60 seconds.

Remarks

Drain pump control (

When drain up kit sold separately is mounted

Setup at shipment

Control temp. (°C)

56 (54) 52 (52)

Tc Tcj

(˚C)

NOTE:

When the operation has started or when Tc or Tcj < 30°C at start of the operation or after operation start,

Same status as that

when “thermostat-OFF” temperature is controlled between values in parentheses of A and B.

1) In cooling operation, the drain pump is usually

operated.

2) If the float switch works while drain pump drives, the

)

compressor stops, the drain pump continues the

Check code [P10]

operation, and a check code is output.

3) If the float switch works while drain pump stops, the

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

After-heat elimination

11 Use for remote start/stop

HA control 1) ON/OFF is possible by HA signal input from the

When heating operation stops, in some cases, the indoor fan operates with [FAN] for approx. 30 seconds.

remote site when it is connected to the wireless remote unit or the remote Start/Stop I/F.

2) ON/OFF status is output to HA output terminal.

3) HA I/O specification conforms to JEMA Standard.

When using HA terminal

(CN61), the connecting

connector sold sepa-

rately is necessary.

In a group operation,

connect it to any of

master or follower indoor

unit for use.

– 27 –

Page 28

No.

Frequency fixed operation

(Test run)

Item

Outline of specifications

1) When pushing [CHK] button for 4 seconds or more, [TEST] is displayed on the display screen and the mode enters in Test run mode.

2) Push [ON/OFF] button.

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

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

mode.

• During test run operation, the temperature cannot

be adjusted.

• An error is detected as usual.

• A frequency fixed operation is performed. After the test run, push [ON/OFF] button to stop the

4) operation. procedure in Item 1.)

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

(Display in the display part is same as the

Remarks

Approx. command frequency [S7]

13 Filter sign display

14 Central control mode

selection

1) The operation time of the indoor fan is calculated, the filter reset signal is sent to the remote controller when the specified time has passed, and it is displayed on LCD.

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

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

1) Setting at the centerl controller side enables to select the contents which can be operated on the remote controller at indoor unit side.

2) Setup contents

• 64 line central controller (TCB-SC642TLE2)

[Individual]: Operated on the remote controller

(Priority to second pushing)

[Central 1]: ON/OFF operation cannot be

operated on the remote controller.

[Central 2]: ON/OFF, mode selection, temp. setup

operations cannot be operated on the remote controller.

[Central 3]: Mode selection and temp. setup

operations remote controller.

[Central 4]: Mode selection cannot be operated

on the remote controller.

∗ In case of the wireless type, the display lamp

does not change but the contents are same. If operating an item which is prohibited by the

central control mode from the remote controller, it is notified with the receive sound, Pi, Pi, Pi, Pi, Pi (5 times).

cannot be operated on the

[FILTER ] goes on.

Specified time Duct: 2500H

Display at remote controller side (No display)

[Central

[Central “Fixed with 75%”.)

] goes on

– 28 –

Page 29

No.

Save operation (By connected outdoor unit)

Max. frequency cut control

Item

Outline of specifications

1) When selecting [AUTO] mode, the save operation is enabled.

2) Shift (Correct) the setup temperature from input values of the every sensor in the range of not spoiling comfortable ability.

3) The input values mean the room temperature Ta, outside temperature To, air volume, and indoor heat exchanger sensor temperature Tc. Their data for 20 minutes are averaged to calculate the correction value of the setup temperature.

4) The setup temperature is shifted every 20 minutes, and the shift value is

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

1) When selecting [AUTO] mode, the Max. frequency cut control operation is enabled.

2) Cooling operation mode: In case of To <28°C, Max. frequency cut is controlled based on the following figure.

Ta (˚C)

Usual control

Remarks

The Max. frequency is restricted to approx. cooling rated value.

Tsc

3) Heating operation mode: In case of To > 15°C, Max. frequency cut is controlled based on the following figure.

Ta (˚C)

Tsh

–3

The Max. frequency is restricted to approx. cooling rated value.

–4

Usual control

– 29 –

Page 30

6-3. Indoor Print Circuit Board

<MCC-1403>

EEPROM

Microcomputer

operation LED

Remote controller

power supply LED

Optional output

Remote controller

inter-unit wire

Used for servicing

CHK

DISP

TC sensor

Outside

error input

TA sensor

∗1 No function

TCJ sensor

Float SW

∗ Short plug is inserted

Power transformer (Secondary side)

(AC11V, 14V, 20V)

Power supply

Power transformer

(Primary side)

(AC240V)

Drain pump

output

Optional

power supply

EXCT

Filter/Option error input

AC fan output

– 30 –

Page 31

6-3-1. Optional Connector Specifications of Indoor P.C. Board

Function

Ventilation output

Option output

Outside error input

Connector

No.

CN32

CN60

CN80

No.

Specifications

(Open collector)

Defrost output

(Open collector)

Thermostat ON output

(Open collector)

Cooling output

(Open collector)

Heating output

(Open collector)

Fan output

(Open collector)

Outside error input

DC12V

Output

DC12V

Remarks

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

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

is performed on the remote controller (DN [31] = 0000 → 0001)

ON when outdoor unit is defrosted

ON when real thermostat is on. (Compressor ON)

ON when operation mode is cooling system (COOL, Cooling/Heating automatic cooling)

ON when operation mode is heating system (HEAT, Cooling/Heating automatic heating)

ON when indoor fan is on. (When air cleaner is used) OFF while clean operation is performed.

Generate the warning code “L30” (continuously for 1 minute) and stop the operation forcibly.

AUTO up/ down grille (∗)

FILTER Option error / Humidifier setting (∗)

CHK Operation check

DISP Exhibition mode

EXCT Demand

CN20

CN70

CN71

CN72

CN73

Panel operation input

Panel up output (Open collector)

Panel down output

(Open collector)

Demand input

DC12V

The grille is controlled according to up/down operation from the remote controller.

∗ Setting of automatic up/down grille provided is performed on the

remote controller. (DN [30] = 0000 → 0001)

Selection of option error input (Protective operation display of device attached to outside) or Humidifier setting input (Vaporizing + Drain pump ON) Humidifier is set at shipment from factory.

∗ Setting of option error input is performed on the remote controller.

(DN [2A] = 0002 → 0001)

This check is used to check indoor operation. (Performs operation of indoor fan “H”, Louver horizontal and Drain pump ON without communication with outdoor and remote controller)

Communication is available by indoor unit and remote controller only.

Indoor unit forced thermostat OFF operation

∗ This option is not provided to oversea models.

– 31 –

Page 32

7. INDOOR UNIT TROUBLESHOOTING

7-1. Summary of Troubleshooting

1. Before troubleshooting

1) Required tools/instruments

•

and – screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch

• Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

a) The following operations are normal.

1. Compressor does not operate.

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

• Is not it during thermo-OFF?

• Does not timer operate during fan operation?

• Is not an overflow error detected on the indoor unit?

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

2. Indoor fan does not rotate.

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

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

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

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

• Is not defrost operation performed?

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

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

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

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

b) Did you return the cabling to the initial positions?

c) Are connecting cables of indoor unit and remote controller correct?

2. Troubleshooting procedure

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

Trouble Confirmation of check code display Check defective position and parts.

NOTE :

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

→ →

– 32 –

Page 33

Main remote controller (RBC-AMT32E)

How to read check monitor display

<7-segment display>

n Confirmation and check

When an error occurred in the air conditioner, an error code and indoor UNIT No. appear on the display part of the remote controller.

The error 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.

Error code Indoor UNIT No. in

which an error occurred

n Confirmation of error log

When an error occurred on the air conditioner, the error log can be confirmed with the following procedure. (The error history is stored in memory up to 4 errors.)

The log can be confirmed from both operating status and stop status.

Procedure 1

When pushing for 4 seconds or more, the following display appears.

If is displayed, the mode enters in the error log mode.

•[01: Order of error log] is displayed in CODE No.

• [Error code] is displayed in CHECK.

• [Indoor unit address in which an error occurred] is displayed in Unit No..

SET

and

TEST

buttons at the same time

Procedure 2

Every pushing of temperature, the error log stored in memory is displayed in order.

The numbers in CODE No. indicate CODE No. [01] (latest) → [04] (oldest).

TEMP.

button used to set

REQUIREMENT

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

Procedure 3

After confirmation, push usual display.

– 33 –

TEST

button to return to the

Page 34

n Remote controller switch monitoring function

This function is available to call the service monitor mode from the remote controller during a test run to acquire temperatures of sensors of the remote controller, indoor unit, and outdoor unit.

1. Push CL and least 4 seconds to call the service monitor mode.

The service monitor indicator lights up and the header indoor unit number is displayed first.

CODE No.  is also displayed.

2. Pushing TEMP. buttons, select the number of sensor, etc. (CODE No.) to be monitored. (See the following table.)

3. Pushing indoor unit to be monitored.

The sensor temperatures of indoor units and their outdoor unit in the control group are displayed.

4. Push

TEST

buttons simultaneously for at

NIT LOUVE

(left side of the button), select an

button to return to the normal display.

Outdoor unit data

CODE No. Data name

61 Outside air temperature (TO)

62 Compressor discharge temperature (TD)

63 Compressor suction temperature (TS)

64 —

65 Heatsink temperature (THS)

6A Operating current (x1/10)

Outdoor unit heat exchanger (coil)

temperature (TE)

Compressor cumulative operating hours

(x100h)

Indoor unit data

CODE No. Data name

01 Room temperature (remote controller)

02 Indoor unit intake air temperature (TA)

Indoor unit heat exchanger (coil)

temperature (TCJ)

Indoor unit heat exchanger (coil)

temperature (TC)

Indoor unit fan cumulative

operating hours (x1 h)

– 34 –

Page 35

– 35 –

7-1-1. Check Code List (Indoor)

(Indoor unit detected)

Check code indication

TCC-LINK central &

Remote controller

E03

E04

E08

E10

E18

F01

F02

F10

F29

L03

L07

L08

L09

L20

L30

P01

P10

P19

P31

Regular communication error between indoor and remote controller

Indoor/Outdoor serial error

Duplicated indoor addresses

Communication error between indoor MCU

Regular communication error between indoor master and follower units

Indoor unit, Heat exchanger (TCJ) error

Indoor unit, Heat exchanger (TC) error

Indoor unit, Room temp. sensor (TA) error

Indoor unit, other indoor P.C. board error

Duplicated setting of indoor group master unit

There is group cable in individual indoor unit.

Unset indoor group address

Unset indoor capacity

Duplicated central control system address

Outside error input to indoor unit (Interlock)

Indoor unit, AC fan error

Indoor unit, overflow detection

4-way valve system error

Other indoor unit error

(Remote controller detected)

Check code indication

Remote controller

E01

E02

E09

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

Remote controller communication (Send) error

Duplicated master remote controller

Representative defective position

Explanation of error contents

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

There is error on serial communication between indoor and outdoor units

Same address as yours was detected.

MCU communication error between main motor and micro computer

Regular communication between indoor master and follower units is impossible.

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

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

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

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

There are multiple master units in a group.

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

Indoor group address is unset.

Capacity of indoor unit is unset.

Duplicated setting of central control system address

Abnormal stop by outside error (CN80) input

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

Float switch worked.

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

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

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

Explanation of error contents

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

Signal cannot be sent to indoor unit.

In 2-remote controller control, both were set as master. (Indoor master unit stops warning and follower unit continues operation.)

Air conditioner operation

Automatic Operation

reset

¡ ¡ ¡ ¡ ¡ ¡ ¡

continuation

× ×

× × × × ×

× ×× ×× ×× ×× ××

× ×× ×× ××

¡ ¡

Air conditioner operation

Automatic Operation

reset

——

continuation

(Central control devices detected)

Check code indication

TCC-LINK central

C05

C06

C12

P30

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

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

Central control system communication (send) error

Central control system communication (receive) error

General-purpose device control interface batched warning

Group follower unit is defective.

Representative defective position

Explanation of error contents

Signal sending operation of central control system is impossible. There are multiple same central devices. (AI-NET)

Signal receiving operation of central control system is impossible.

An error on device connected to general-purpose device control interface of exclusive to TCC-LINK/AI-NET

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

Air conditioner operation

Automatic Operation

reset

continuation

——

Page 36

Check Code List

Error mode detected by indoor unit

Operation of diagnostic function

Check

code

Cause of operation

Status of

air conditioner

Condition

Judgment and measures

No communication from remote controller (including wireless) and

E03

communication adapter

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

• Miswiring of inter-unit wire

E04

• Defective serial sending circuit on outdoor P.C. board

• Defective serial receiving circuit on indoor P.C. board

E08

Duplicated indoor unit address

L03

Duplicated indoor header unit

There is group wire in individual indoor

L07

unit.

L08

Unset indoor group address

L09

Unset indoor capacity

L30

Abnormal input of outside interlock

Float switch operation

P10

• Float circuit, Disconnection, Coming-off, Float switch contact error

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

1. Check cables of remote controller and communication adapters.

• Remote controller LCD display OFF (Disconnection)

• Central remote controller [97] check code

1. Outdoor unit does not completely operate.

• Inter-unit wire check, correction of miswiring

• Check outdoor P.C. board. Correct wiring of P.C. board.

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

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

* If group construction and address are not normal when the

power has been turned on, the mode automatically shifts to address setup mode. (Resetting of address)

1. Set indoor capacity (DN=11)

1. Check outside devices.

2. Check indoor P.C. board.

1. Trouble of drain pump

2. Clogging of drain pump

3. Check float switch.

4. Check indoor P.C. board.

4-way valve system error

P19

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

Own unit stops while warning is output

P31

to other indoor units.

Coming-off, disconnection or short of

F01

indoor heat exchanger temp. sensor (TCJ)

Coming-off, disconnection or short of

F02

indoor heat exchanger temp. sensor (TC)

Coming-off, disconnection or short of

F10

indoor heat exchanger temp. sensor (TA)

Indoor EEPROM error

F29

• EEPROM access error

Communication error between indoor MCU

E10

• Communication error between fan driving MCU and main MCU

Regular communication error between

E18

indoor header and follower units

Stop

(Automatic reset)

Stop

(Follower unit)

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

1. Check 4-way valve.

2. Check 2-way valve and check valve.

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

4. Check indoor P.C. board.

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

2. Check indoor P.C. board.

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

2. Check indoor P.C. board.

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

2. Check indoor P.C. board.

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

2. Check indoor P.C. board.

1. Check indoor EEPROM. (including socket insertion)

2. Check indoor P.C. board.

1. Check indoor P.C. board.

1. Check remote controller wiring.

2. Check indoor power supply wiring.

3. Check indoor P.C. board.

– 36 –

Page 37

Error mode detected by outdoor unit

The check code has been ramified from 4 series and after The ramified check code is displayed only when both the indoor unit and the outdoor unit are 4 series and after.

(Ex. Combination of RAV-SM1404UT-E with RAV-SM2804AT8-E)

When the indoor unit is 3 series and before, the conventional check code is displayed.

(Ex. Combination of RAV-SM1402BT-E and RAV-SM2804AT8-E: Outdoor unit only is 4 series.)

Operation of diagnostic function

Check code

Indoor unit

before after

3 series 4 series

F04 F04

F06

F07

F06

F12

F15

F08 F08

F13

F31

L10

L29

H01 H01

H02 H02

P07

P15

P19

Cause of operation

Disconnection, short of discharge temp. sensor (TD)

Disconnection, short of outdoor temp. sensor (TE)

Disconnection, short of outdoor temp. sensor (TL)

Disconnection, short of suction temp. sensor (TS)

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

Disconnection, short of outside temp. sensor (TO)

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

Outdoor P.C. EEPROM error

Unset jumper of service P.C. board

Communication error between outdoor P.C. board MCU

Heat sink overheat error

∗ Heat sink temp. sensor detected

over specified temperature.

Detection of gas leak

∗ Discharge temp. sensor (TD),

Suction temp. sensor (TS) detected temperature over specified temp.

4-way valve inverse error

∗ After heating operation has started,

indoor heat exchanger temp. lowers under the specified temp.

∗ After heating operation has started,

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

Compressor break down

∗ Although operation has started,

operation frequency decreases and operation stops.

Compressor lock

* Over-current detection after

compressor start-up

Status of

air conditioner

Stop

Continue

Stop

Condition

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Judgment and measures

1. Check discharge temp. sensor (TD).

2. Check outdoor P.C. board (MCC-1599).

1. Check temp. sensor (TE).

2. Check outdoor P.C. board (MCC-1599).

1. Check temp. sensor (TL).

2. Check outdoor P.C. board (MCC-1599).

1. Check suction temp. sensor (TS).

2. Check outdoor P.C. board (MCC-1599).

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

2. Check outdoor P.C. board (MCC-1599).

1. Check outside temp. sensor (TO).

2. Check outdoor P.C. board (MCC-1599).

1. Check outdoor P.C. board (MCC-1599). (Q201 is incorporated in TH sensor.)

1. Check outdoor P.C. board (MCC-1599).

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

1. Check outdoor P.C. board (MCC-1596, MCC-1597, MCC-1599).

2. Connection check between CN802 of MCC-1599 and CN504 of MCC-1597, and also connection check between CN505 of MCC-1597 and CN851 of MCC-1596.

1. Check screw tightening between PC. Board and heat sink and check radiator grease (MCC-1596).

2. Check heat sink blast path.

1. Check gas leak, recharge

2. Check full open of service valve.

3. Check PMV (Pulse Motor Valve).

4. Check broken pipe.

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

1. Check operation of 4-way valve.

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

3. Check indoor heat exchanger sensor (TC).

4. Check 4-way valve coil.

5. Check PMV (Pulse Motor Valve).

1. Check power supply voltage. (AC342 to 457V)

2. Overload operation of refrigerating cycle

1. Trouble of compressor (Lock, etc.): Replace compressor.

2. Wiring error of compressor (Open phase)

– 37 –

Page 38

Check code

Indoor unit

before after

3 series 4 series

H03

P05

F23

H06

P03 P03

H04

P04

P05

P20

P22 P22

P26 P26

P29 P29

Operation of diagnostic function

Cause of operation

Current detection circuit error

Open phase of 3-phase power supply

Ps sensor error

Low pressure protective operation

Discharge temp. error

∗ Discharge temp. (TD) over

specified value was detected.

Case thermostat operation

∗ Abnormal overheat of compressor

High pressure SW system error

Power supply voltage error

High pressure protective operation

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

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

Outdoor fan system error

Short-circuit error of compressor driving element

Position detection circuit error

Status of

air conditioner

Stop

Condition

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Judgment and measures

1. Check outdoor P.C. board (MCC-1596). (AC current detection circuit)

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

2. Black lead wire to be connected to CN03 of MCC-1596 does not pass through T611.

1. Check connection of Ps sensor connector.

2. Check failure of Ps sensor.

3. Check compressing power error of compressor.

4. Check 4-way valve error.

5. Check outdoor P.C. board error.

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

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

3. Check SV2 circuit.

4. Check Ps sensor error.

5. Check clogging of indoor filter.

6. Check clogging of refrigerant pipe.

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

8. Check short of refrigerant.

1. Check refrigerating cycle (Gas leak)

2. Trouble of electronic expansion valve

3. Check discharge temp. sensor (TD).

1. Check case thermostat and connector.

2. Check gas leak, recharge

3. Check full open of service valve.

4. Check PMV (Pulse Motor Valve).

5. Check broken pipe.

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

2. Check of outdoor fan operation.

3. Check motor error of outdoor fan.

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

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

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

7. Check outdoor P.C. board error.

8. Check fan system error (Cause of air volume drop) at indoor side.

9. Check PMV opening status in indoor unit.

1. Check power supply voltage. AC342 to 457V

1. Check outdoor heat exchanger sensor (TL).

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

3. Check full open of service valve.

4. Check indoor/outdoor fan.

5. Check PMV (Pulse Motor Valve).

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

7. Overcharge of refrigerant. Recharge

1. Check lock of fan motor.

2. Check power supply voltage between L2 and N. AC198 to 264V

3. Check outdoor P.C. board.

1. When performing operation while taking-off compressor wire, P26 error occurs. Check control P.C. board (MCC-1596).

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

1. Check control P.C. board (MCC-1596).

– 38 –

Page 39

Error mode detected by remote controller or central controller (TCC-LINK)

Operation of diagnostic function

Check code

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

Cause of operation

No communication with master indoor unit

• Remote controller wiring is not correct.

• Power of indoor unit is not turned on.

• Automatic address cannot be completed.

Status of

air conditioner

Stop

Condition

—

Power supply error of remote controller, Indoor EEPROM error

1. Check remote controller inter-unit wiring.

2. Check remote controller.

3. Check indoor power wiring.

4. Check indoor P.C. board.

5. Check indoor EEPROM. (including socket insertion)

→ Automatic address repeating phenom-

enon generates.

Judgment and measures

E01

∗2

E02

E09

L20

Central controller

L20

—

∗3

Central controller

(Send)

C05

(Receive)

C06

—

Central controller

P30

No communication with master indoor unit

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

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

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

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

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

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

Stop

(Automatic reset)

∗ If center exists,

operation continues.

Stop

(Automatic reset)

∗ If center exists,

operation continues.

Stop

(Sub unit

continues operation.)

Stop

(Automatic reset)

Continues

(By remote controller)

Continuation/Stop

(According

to each case)

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Receiving error from remote controller

1. Check remote controller inter-unit wiring.

2. Check remote controller.

3. Check indoor power wiring.

4. Check indoor P.C. board.

Sending error of remote controller

1. Check sending circuit inside of remote controller.

→ Replace remote controller.

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

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

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

2. Check network adapter P.C. board.

1. Check communication wire / miswiring

2. Check communication (U3, U4 terminals)

3. Check network adapter P.C. board.

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

5. Check terminal resistance. (TCC-LINK)

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

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

(Usual operation of air conditioner becomes unavailable.)

For the wireless models, an error is notified with indication lamp.

∗3 This trouble is related to communication of remote controller (A, B), central system (TCC-LINK U3, U4),

and [E01], [E02], [E03], [E09] or [E18] is displayed or no check display on the remote controller according to the contents.

– 39 –

Page 40

7-1-2. Diagnostic Procedure for Each Check Code (Indoor Unit)

Check code

[E01 error]

Is inter-unit cable of A and B normal?

YES

Is there no disconnection or

contact error of connector on harness

from terminal block of indoor unit?

Is group control operation?

YES

Is power of all indoor units turned on?

YES

Is power supplied to remote controller?

AB terminal: Approx. DC18V

YES

Correct inter-unit cable

of remote controller

Correct connection of connector.

Check circuit wiring.

Check power connection of indoor unit.

(Turn on power again.)

Check indoor P.C. board (MCC-1403).

Defect → Replace

[E09 error]

Are 2 remote controllers set

without master unit?

Are 2 master units set in

2 remote controllers?

YES

Correct a master unit/a follower unit.

(Remote controller address connector)

Check remote controller P.C. board.

Defect → Replace

Correct as a master unit

and a follower unit.

Check remote controller P.C. board.

Defect → Replace

– 40 –

Page 41

[E04 error]

Does outdoor operate?

YES

Check indoor P.C. board.

Defect → Replace

[E10 error]

Is group address setup of remote controller correct?

YES

Are wiring in indoor unit and

1, 2, 3 inter-unit cables correct?

YES

Are wirings of terminal blocks

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

YES

Check outdoor P.C. board.

Defect → Replace

Check CODE No. [14].

Correct wiring and

inter-unit cables.

Correct wiring of connector

and terminal blocks.

Is there no disorder of power supply?

Check indoor control P.C. board

(MCC-1403).

Defect → Replace

YES

Check power supply voltage.

Correct lines.

Check and eliminate noise, etc.

– 41 –

Page 42

[E18 error]

Is inter-unit cable

of A and B normal?

YES

Is there no disconnection

or contact error of connector

on harness from terminal block

of indoor unit?

Is group control operation?

YES

Is power of all indoor units turned on?

YES

Is there no contact error

of indoor/outdoor inter-unit cable

(Signal line)?

YES

Correct inter-unit cable

of remote controller.

Correct connection of connector.

Check circuit wiring.

Check power

connection status of indoor unit

(Connect again).

Correct indoor/outdoor inter-unit cable

(Serial signal line).

Check indoor P.C. board

(MCC-1403).

Defect → Replace

[E08, L03, L07, L08 error]

E08: Duplicated indoor unit No.

L03: There are 2 or more master units in a group control.

L07: There is 1 or more group address [Individual] in a group control.

L08: The indoor group address is unset. (99)

If the above error is detected when power supply turned on, the mode enters automatically in the automatic address set mode. (Check code is not output.)

However, if the above error is detected during the automatic address set mode, a check code may be output.

[L09 error]

Is not yet capacity setting

of indoor unit set up?

YES

Set capacity data of indoor unit.

(Setup CODE No. (DN)=11)

Check indoor P.C. board (MCC-1403).

Defect → Replace

– 42 –

Page 43

[L20 error]

Are wiring connections

to communication lines

U3 and U4 normal?

YES

Is not the multiple same central

control system addresses connected?

Check central controller

(including network adapter) and

indoor P.C. board (MCC-1403).

Defect → Replace

[L30 error]

Are outside devices of

connector CN80 connected?

YES

Correct wiring connection.

Correct central control system address.

Check indoor P.C. board (MCC-1403).

Defect → Replace

YES

Do outside devices normally work?

YES

Check cause of operation.

[P30 error] (Central controller)

Is group operation carried out?

YES

Is there check code

on sub remote controller in main

and sub remote controllers?

Check outside devices.

Defect → Replace

YES

Check corresponding

indoor unit/outdoor unit.

Check indoor P.C. board (MCC-1403).

Defect → Replace

– 43 –

Page 44

[P10 error]

Is connection of

float switch connector

(Indoor control board CN34)

normal?

YES

Does float switch work?

YES

Does drain pump work?

YES

drain pump turned on? ∗

Check the drain pipe, etc.

Is power of

YES

Is circuit wiring normal?

Check and correct wiring

and wire circuit.

NO NO

Are connector pins 1 and 3

at drain pump unit side shorted

(Resistance value 0)?

Replace drain pump

and indoor P.C. board

Correct connection

of connector.

YES

(MCC-1403).

Replace drain pump.

Check wiring.

∗ Check that voltage of 1 – 3 pin of CN068 on the indoor P.C. board is 220–240V.

[P01 error]

Is there no connection error or

disconnection of CN083 connector?

Is condenser normal?

YES

Is there no mechanical lock of the fan motor?

YES

Check indoor P.C. board

(MCC-1403).

Defect → Replace

Connect connector.

Correct the wiring circuit.

Replace condenser.

Replace fan motor.

Check indoor P.C. board (MCC-1403).

Defective → Replace

– 44 –

Page 45

[P19 error]

Is operation of 4-way valve normal?

YES

4-way valve coil terminal 200V

Is refrigerant flow by PMV normal?

YES

In heating mode,

YES

Check 4-way valve.

Defective → Replace

Check and replace PMV.

Is circuit wiring normal?

YES

Check and correct circuit.

Check CDB P.C. board.

Defective → Replace

Are resistance value characteristics

of TC sensor normal?

YES

∗ Refer to temperature-Resistance value characteristic table.

Replace TC sensor.

Check CDB P.C. board.

YES

Check indoor P.C. board (MCC-1403).

Defective → Replace

• In cooling operation, the outdoor unit [P19 error] may be displayed when high pressure is abnormally up.

In this case, referring to item [P04 error], eliminate the pressure-up cause and then diagnose the error again.

– 45 –

Page 46

[F02 error]

Is connection of TC sensor connector

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

TC sensor resistance value normal?

Check indoor P.C. board (MCC-1403).

[F01 error]

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

YES

Are characteristics of

YES

∗ Refer to Charqacteristics-2.

Defect → Replace

Correct connection of connector.

Replace TC sensor.

Correct connection of connector.

YES

Are characteristics of

TCJ sensor resistance value normal?

YES

∗ Refer to Charqacteristics-2.

Check indoor P.C. board (MCC-1403).

Defect → Replace

Replace TCJ sensor.

– 46 –

Page 47

[C06 error] (1:1 model connection interface)

Are U3 and U4 communication lines normal?

YES

∗1

Is connection of connector normal?

YES

Are A and B communication lines normal?

YES

Is there no connection error of power supply cable?

Is not the source power supply turned on?

∗1

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

YES

Correct communication line.

Correct connection of connector.

Check connection of A and B terminal blocks.

Correct communication line of remote controller.

Correct power wiring.

Turn on the source power supply.

YES

Did a power failure occur?

Is the network address changed

from the wired remote controller?

Is there no noise source?

Can the other indoor units be normally controlled from the central controller? Or is the operation status of indoor unit reflected?

YES

Can the indoor unit be normally controlled

from the wired remote controller?

YES

Uncontrolled

(Same to others)

Uncontrolled

Clear the check code.

Eliminate noise, etc.

Check central controller.

Defect → Replace

Check indoor P.C. board (MCC-1403).

Defect → Replace

YES

Check the power supply transformer of

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

Defective → Replace

– 47 –

Page 48

[E03 error] (Master indoor unit)

[E03 error] is detected when the indoor unit cannot receive a signal from the wired remote controller (also central controller).

Check A and B remote controllers and communication lines of the central control system U3 and U4.

As communication is impossible, this check code [E03] is not displayed on the wired remote controller and the central controller.

[E01] is displayed on the wired remote controller and [C06 error] is displayed on the central controller.

If these check codes generate during operation, the air conditioner stops.

[F29 error]

This check code indicates a detection error of IC10 non-volatile memory (EEPROM) on the indoor unit P.C. board, which generated during operation of the air conditioner. Replace the service P.C. board.

∗ When EEPROM was not inserted when power supply turned on or when the EEPROM data read/write

operation is impossible at all, the automatic address mode is repeated. In this time, [97 error] is displayed on the central controller.

(Power ON)

(Approx.

3 minutes)

[SET] is displayed on

wired remote controller.

(Approx.

1 minute)

[SETTING]

goes off.

(Repetition)

LED (D002) on indoor unit

P.C. board flashes with

1Hz for approx. 10 seconds.

Reboot

(Reset)

[P31 error] (Follower indoor unit)

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

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

– 48 –

Page 49

Temperature – Resistance value characteristic table

Representative value

Temperature sensor TA, TC, TCJ

Temperature

(°C)

100

Resistance value (k

(Minimum value) (Standard value) (Maximum value)

32.33 33.80 35.30

19.63 20.35 21.09

12.23 12.59 12.95

9.75 10.00 10.25

7.764 7.990 8.218

5.013 5.192 5.375

3.312 3.451 3.594

2.236 2.343 2.454

1.540 1.623 1.709

1.082 1.146 1.213

0.7740 0.8237 0.8761

0.5634 0.6023 0.6434

ΩΩ

Ω)

ΩΩ

TA, TC, TCJ sensors

Resistance (kΩ)

10 20 30 40 50 60 70 80 90 100

Temperature (˚C)

– 49 –

Page 50

Inspection of Fan Motor

Part name

Fan motor STF200–370–4AR

Checking procedure

Measure the resistance value of each winding by using the tester.

an motor inside wiring diagra

Position

Black – Red

Black – White

Black – Yellow

Orange – White

Motor over heating protection switc

Blue – White

Resistance value

12.1 Ω

12.4 Ω

3.94 Ω

13.47 Ω

15.02 Ω

Under 20°C

– 50 –

Page 51

8. REPLACEMENT OF SERVICE P.C. BOARD

8-1. Indoort Unit

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

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

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

master unit / sub unit settings and perform the cooling cycle confirmation through the trial operation.

CASE 1

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

EEPROM data read out [1]

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

Writing the read out EEPROM data [3]

Power reset

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

CASE 2

Before replacement, the indoor unit cannot be turned on or the wired remote controller operation is impossible due to trouble of the power supply circuit to the remote controller. (Defective P.C. board)

Replacement of EEPROM

Remove EEPROM installed on the P.C. board before replacement

and then replace it with EEPROM of the service P.C. board.

Replacement & power ON for service P.C. board [2]

Read-out of EEPROM data [1]

If reading-out is impossible, proceed to CASE 3.

Replacement of EEPROM

Replace EEPROM again. (Set the original EEPROM to the service P.C. board.)

Replacement & power ON for service P.C. board [2]

Writing-in of the read-out EEPROM data [3]

Power reset

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

CASE 3

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

Replacement & power ON for service P.C. board [2]

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

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

Power reset

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

– 51 –

Page 52

[1] Setting data read out from EEPROM

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

Step 1 Push

SET, CL

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

At this time, the CODE No. (DN) shows “ and the swing operation also starts if it has the louvers.

Step 2 Every time when the

order. Specify the indoor unit No. to be replaced.

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

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

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

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

∗ The CODE No. (DN) are ranged from “

Step 3 After writing down all setting data, push

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

CODE No. required at least

Indoor unit capacity

System address

Indoor unit address

Group address

TEST

and

Contents

Type

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

 ”. Also, the fan of the indoor unit selected starts its operation

UNIT LOUVER

button is pushed, the indoor unit No. under the group control is displayed in

→ by pushing / buttons for the temperature

/ buttons for the temperature setting.

” to “..”. The CODE No. (DN) may skip.

TEST

button to return to the normal stop status.

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

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

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

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

On the new P.C. board, set the same setting of the jumper wire and setting of shortcut connection connector as those of the P.C. board before replacement.

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

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

Turn on the indoor unit.

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

2. Push

SET, CL

setting mode, and proceed to [3]. (The unit No. “

b) Group operation (including twin system)

Turn on the indoor unit(s) with its P.C. board replaced to the P.C. board for indoor unit servicing, according to either methods 1 or 2 shown below.

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

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

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

• Twin 1 system only

• All group connections

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

Also, the system address/Indoor unit address of the indoor unit with its P.C. board replaced may be assigned to the addresses (not used) other than those of the indoor units without its P.C. board replaced.

It is recommended to keep the information in advance, which cooling system the indoor unit belongs to or whether the indoor unit works as the header unit or the follower unit in the group control operation.

and

TEST

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

 ” is displayed.)

– 52 –

Page 53

[3] Writing the setting data to EEPROM

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

Step 1 Push

SET, CL

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

At this time, the CODE No. (DN) shows “ and the swing operation starts if it has the louvers. (The unit No. “

Step 2 Every time when

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

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

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

• Set the indoor unit type and capacity. The factory-set values shall be written to the EEPROM by changing the type and capacity.

1. Set the CODE No. (DN) to “

2. Select the type by pushing

(For example, 4-way Air Discharge Cassette Type is set to “0001”. Refer to table 2)

3. Push

SET

(The operation completes if the setting data is displayed.)

4. Change the CODE No. (DN) to “

5. Select the capacity by pushing

(For example, 80 Type is set to “0012”. Refer to table 3)

6. Push

SET

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

7. Return to the normal stop status by pushing

(Approx. 1 minute is needed to start operation of the remote controller.)

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

above again.

Step 5 Change the CODE No. (DN) to “

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

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

1. If the setting data is different, modify the setting data by pushing

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

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

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

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

Step 8 Repeat the steps 6 and 7.

Step 9 After the setting completes, push

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

∗ The CODE No. (DN) are ranged from “

The CODE No. (DN) is not limited to be serial No. Even after modifying the data wrongly and pushing

is possible to return to the data before modification by pushing

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

TEST

and

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

”. Also, the fan of the indoor unit selected starts its operation

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

UNIT LOUVER

button is pushed, the indoor unit No. in the group control operation are displayed

 ” is displayed.)

/ button for the temperature setting.

”. (without change)

/ buttons for the timer setting.

button.

” by pushing / buttons for the temperature setting.

/ buttons for the timer setting.

button.

TEST

button.

” by pushing / buttons for the temperature setting.

/ buttons for the timer setting to

/ buttons for the temperature setting.

TEST

button to return to the normal

<Fig. 1 RBC-AMT32E>

” to “..”.

SET

button, it

– 53 –

3651 42

Page 54

Table 1

Filter sign lighting time

Filter pollution leve

Central control address

Heating suction temperature shift

Cooling only

Type

Indoor unit capacity

System address

Indoor unit address

Group address

Temperature range of cooling/heating

automatic SW control point

Power failure automatic recovery

Thermo output SW (T10  )

Item

Setting data Factory-set value

Depending on Type

0000: standard

0099: Not determined

0002: +2°C (flooring installation type: 0)

0000: Heat pump

Depending on model type

Depending on capacity type

0099: Not determined

0003: 3 deg (Ts ± 1.5)

0000: None

0000: Thermo ON

Ventilation fan (standalone)

Sensor SW (Selection of static pressure)

Humidifier control (+ drain pump control)

Timer setting (wired remote controller)

Table 2. Type: CODE No. 10

Setting data

0006

Concealed Duct High Static Type

Type

Table 3. Indoor unit capacity: CODE No. 11

Setting data

0000∗

0021

0000: Not available

0000: Body sensor

0003: Humidifier ON + Pump OFF

0000: Available

Type name abb.

RAV-SM∗∗∗DT-E (TR)

Type

Disable

224

0023

280

∗ EEPROM initial value on the P.C. board for indoor unit servicing.

– 54 –

Page 55

9. SETUP AT LOCAL SITE AND OTHERS

9-1. Indoor Unit

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

1. When pushing

Then push

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

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

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

• Detection of error is performed as usual.

However, do not use this function except case of Test Run because it applies load on the unit.

2. Use either heating or cooling operation mode for [TEST].

NOTE : The outdoor unit does not operate after power has been turned on or for approx. 3 minutes after

3. After a Test Run has finished, push (To prevent a continuous test run operation, 60-minutes timer release function is provided to this remote controller.)

TEST

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

ON / OFF

button.

operation has stopped.

TEST

button again and check that [TEST] on LC display has gone off.

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

(Preparation in advance)

TEST

1 Push

SET

+ CL buttons simultaneously for 4 seconds or more on the remote controller.

(Push buttons while the air conditioner stops.)

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

2 Every pushing

UNIT

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

other.

Select a main indoor unit (outdoor unit is connected) which is to be defrosted.

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

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

SET

button. (OK if indication lights)

TEST

button returns the status to the normal stop status.

TIME

TEMP.

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

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

(Practical operation)

• Push ON/OFF

• Select the HEAT mode.

• After while, the forced defrost signal is sent to the outdoor unit and then the outdoor unit starts defrost operation.

(The forced defrost operation is performed for Max. 12 minutes.)

• After defrost operation finished, the operation returns to the heating operation.

ON / OFF

Key.

To execute the defrost operation again, start procedure from above item 1 .

(If the forced defrost operation was executed once, setting of the above forced defrost operation is cleared.)

– 55 –

Page 56

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

LOUVER

1. D002 (Red)

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

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

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

2. D203 (Red)

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

9-1-4. Function Selection Setup

<Procedure> Perform setting while the air conditioner stops.

TEST

1 Push

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

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

SET

+ 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

5 Push

SET

button. (OK if indication lights)

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

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

Pushing

TEST

button returns the status to the normal stop status.

TIME

buttons, select the set data.

N / OF

TIMER SE

MOD

1 2 3 4 5 6

TESTRESE

WING/FI

END

– 56 –

Page 57

Function selection item No. (DN) list

Filter sign lighting time

Central control address

Heating suction temp. shift

Type

Indoor unit capacity

Line address

Indoor unit address

Group address

In automatic cooling/heating, temp.

width of cool → heat, heat → cool mode selection control point

Item

Contents

0000:None 0001: 150H

0002:2500H 0003: 5000H

0004:10000H 0005: Clogging sensor used

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

0099:Undecided

0000:No shift 0001: +1°C

0002:+2°C to 0010: +10°C

(Up to +6 is recommended.)

0000:(1-way air discharge cassette)

0001:(4-way air discharge cassette) to 0038

0000:Undecided 0001 to 0034

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

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

0000:Individual 0001: Master unit in group

0002:Follower unit in group

0000:0 deg to 0020: 20 deg

(Cool/heat are reversed with ± (Data value) / 2 against the set temperature)

At shipment from factory

According to type

0099:Undecided

0002:+2°C (Floor type 0000: 0°C)

According to model type

According to capacity type

0099:Undecided

0003:3 deg (Ts±1.5)

Automatic reset of power failure

Selection of option / error input

(CN70)

Selection of thermostat output

(T10  )

Fan (Single operation)

Sensor selection

Humidifier control

(+Drain pump control) (This function is not provided.)

Timer setting

(Wired remote controller)

Current demand X% to outdoor unit

Existence of remote controller save

function

0000:None 0001: Provided

0000:Filter input

0001:Alarm input (Air cleaner, etc.)

0002:Humidifier input

0000:Indoor thermostat ON

0001:ON receiving output of outdoor compressor

0000:Impossible 0001: Possible

0000: Body TA sensor

0001: Remote controller sensor

0000:No control

0001:Humidifier + Vaporizing type (Pump ON)

0002:Humidifier + Supersonic type

(Pump ON when specified time elapsed)

0003:Humidifier + Natural drain type (Pump OFF)

0000:Operable

0001:Operation prohibited

0050:50% to 0100: 100%

0000:Invalid (Impossible) 0001: Valid (Possible)

0000:None

0002:Humidifier

0000:Thermostat ON

0000:Impossible

0000:Body sensor

0003:Humidifier ON

Pump OFF

0000:Operable

0075:75%

0001:Valid (Possible)

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

(Detail DN setup).

– 57 –

Page 58

9-1-5. Wiring and Setting of Remote Controller Control

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

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

• When connected 2 remote controllers

operate an indoor unit

Remote controller

switch (Master)

Sold

separately

BABA

Indoor unit

Remote controller

switch (Sub)

Sold

separately

Remote controller cables (Procured locally)

Terminal block for remote controller cables

(Setup method)

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

How to set wired remote controller as sub remote controller

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

Remote controller (Inside of the rear side)

Sub remote

controller

Master remote

controller

1 2

DIP switch

21 3

Outdoor unit

[Operation]

1. The operation contents can be changed by Lastpush-priority.

2. Use a timer on either Master remote controller or Sub remote controller.

– 58 –

Page 59

9-1-6. Monitor Function of Remote Controller Switch

LOUVER

n Calling of sensor temperature display

Each data of the remote controller, indoor unit and outdoor unit can be understood by calling the service monitor mode from the remote controller.

1 Push

TEST

+ CL buttons simultaneously for 4 seconds to

call the service monitor mode.

The service monitor goes on, the master indoor unit No. is displayed at first and then the temperature of CODE No.  is displayed.

TIMER SE

2 Push temperature set

the CODE No. of data to be monitored.

The item code list is shown below.

TEMP.

buttons and then change

TESTRESE

WING/FI

241 3

N / OF

MOD

CODE No.

∗ 07

Indoor unit data

∗ F2

∗ F8

Room temperature (Remote controller)

Indoor suction temperature (TA)

Indoor heat exchanger (Coil) temperature (TCJ)

Indoor heat exchanger (Coil) temperature (TC)

Indoor fan revolution frequency

Indoor fan calculated operation time

Filter sign time

Indoor discharge temperature*1

Data name

Unit

°C

rpm

×100h

×1h

°C

CODE No.

Outdoor heat exchanger (Coil) temperature (TE)

Outside temperature (TO)

Compressor discharge temperature (TD)

Compressor suction temperature (TS)

Heat sink temperature (THS)

Operation current (× 1/10)

∗ 6D

Outdoor unit data

∗ 70

∗ 72

∗ 73

Outdoor heat exchanger (Coil) temperature (TL)

Compressor operation frequency

Outdoor fan revolution frequency (Lower)

Outdoor fan revolution frequency (Upper)

Compressor calculated operation time

Item with ∗ marks are not provided to the Concealed Duct Type.

UNIT LOUVER

Push

button to select the indoor unit to be monitored.

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

1 2 3 4

Returned to usual display

Data name

Unit

°C

rps

rpm

×100h

Pushing

TEST

button returns the status to the usual display.

∗1 The indoor discharge temperature of CODE No. [F8] is the estimated value from TC or TCJ sensor.

Use this value to check discharge temperature at test run. (A discharge temperature sensor is not provided to this model.)

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

• If the combined outdoor unit is one before 2 or 3 series, the outdoor unit data [6D], [70], [72] and [73] are not displayed.

– 59 –

Page 60

n Calling of error history

LOUVER

The error contents in the past can be called.

SET

1 Push

TEST

buttons simultaneously for 4 seconds or

more to call the service check mode.

Service Check goes on, the CODE No. 01 is displayed, and then the content of the latest alarm is displayed. The number and error contents of the indoor unit in which an error occurred are displayed.

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

temperature history No. (CODE No.)

CODE No.  (Latest) → CODE No. " (Old) NOTE : 4 error histories are stored in memory.

3 Pushing

TEST

REQUIREMENT

Do not push CL button, otherwise all the error histories of the indoor unit are deleted.

/ buttons to change the error

button returns the display to usual display.

231

1 2 3

N / OF

TIMER SE

TESTRESE

Returned to usual display

WING/FI

MOD

(Group control operation)

In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.

The indoor unit connected with outdoor unit (Individual/Master of twin) controls room temperature according to setting on the remote controller.

OUT

1-1 2-1

Remote controller

OUT

Master

OUT

3-1 4-1 7-1

OUT

Max. 8 units

1. Display range on remote controller

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

1) Concealed duct (RAV-SMXXXDT) is not set up on the master unit.

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

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

2. Address setup

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

1) Connect 3 In/Out cables surely.

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

3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the unit No. is not duplicated with one of another unit.

– 60 –

Page 61

n Indoor unit power-ON sequence

Power ON

Gr construction check

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

• Reboot when power is fed on the way

Not normal NO

3 minutes elapse

Normal ∗ Gr normal

1) There is no duplicated indoor unit address.

2) There is no invalid indoor unit address.

3) Individual unit and header / follower units are not intermingled.

4) Only a unit for individual.

5) A master indoor unit and 1 or more sub indoor units for Gr.

System start

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

Remote controller operation is available.

(Approx. 50 seconds after power-ON)

YES

Automatic address starts.

(Approx. 1 minute up to finish)

• Power supply/Indoor/Outdoor serial and Gr wiring: OK

• Powers of all indoor units are turned on within 3 minutes.

• Reception time for remote controller operation (After power supply was turned on)

1) When address is OK : Approx. 50 seconds

2) In AUTO address : Approx. 4 to 5 minutes

Regular communication between indoor units (Every 30 seconds) (Header / Follower) (When the above status changes, immediately communicates.)

(Repetition)

• In a group operation, if the indoor unit which was fed power after judgment of automatic address cannot receive regular communication from the master unit and regular communication on identical pipe within 120 seconds after power was turned on, it reboots (system reset).

→ The operation starts from judgment of automatic address (Gr construction check) again.

(If the address of the master unit was determined in the previous time, the power fed to the master unit and reboot works, the master unit may change though the indoor unit line address is not changed.)

– 61 –

Page 62

9-2. Setup at Local Site / Others

Model name: TCB-PCNT30TLE2

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

1. Function

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

2. Microprocessor block diagram

Indoor unit

CN050

Indoor control

P.C. board

CN041

Terminal block (A, B)

Remote controller

1:1 model connection interface P.C. board

CN51

1:1 model

connection interface

communication circuit

CN40

Terminal

resistance

SW01

MCC-1440

Communication units : Total 64 units Communication distance : 2000 m

Central controller

1:1 model connection interface

3. 1:1 model connection interface wiring connection

CAUTION

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

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

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

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

when shipped from the factory)

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

controller after automatic addressing.

Central control device

Outdoor unit

Caution 3

Indoor unit

Central control device

Refrigerant line 1

U1 U3

123

U2 U4

Central control devices: Max. 10 units

Refrigerant line 2

Header

U4 1 2 3

unit

123

Refrigerant line 3

Follower unit

1:1 model connection interface

This product

( )

sold separately

Caution 1

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

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

Indoor units in all refrigerant lines: Max.64 units

Caution 2

Group operation (Max. 8 units)

Remote controller

Remote controller Remote controllerRemote controller

wiring

– 62 –

Page 63

4. Wiring specifications

• Use 2-core with no polar wire.

• Match the length of wire to wire length of the central control system.

If mixed in the SMMS system, the wire length is lengthened with all indoor/outdoor inter-unit wire length at side.

No. of wires

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

Size

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

• Connect the shield wire by closed-end connection and apply open process (insulating process) to the last terminal. Ground the earth wire to 1 point at indoor unit side. (In case of central controlling of digital inverter (DI, SDI) unit setup)

CAUTION

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

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

Central control device

Outdoor unit

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

Caution 2

123

Caution 1

Central control

system wiring

Indoor unit

U3 U4

123

Remote controller

Header unit

U3 U4

123

Remote controller

(Group operation)

Follower unit

U3 U4

123

Remote controller

: 1:1 model connection interface

(This option)

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

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

• Using SW01, set up the terminator.

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

Central control device

Refrigerant line 1

Outdoor unit

Indoor unit

Central control device

123

Central control system wiring

Central control devices: Max. 10 units

Refrigerant line 2

Header unit

123

Refrigerant line 3

Follower unit

123

Indoor/outdoor inter-unit wire (AC230V serial)

1:1 model

connection interface

This product

( )

sold separately

Line address

SW01 Bit 1 SW01 Bit 2

Remarks

Remote controller Remote controller Remote controller

Turn SW01 Bit 1 to ON.

OFF

(Reference) Setup contents of switch

SW01

Bit 1 OFF

OFF

Bit 1 OFF OFF

ON ON

As status shipped from factory

Terminator

None 100Ω

75Ω 43Ω

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

Group operation (Max. 8 units)

OFF

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

Remarks

– 63 –

Remote controller wiring

Page 64

LOUVER

6. External view of P.C. board assembly

Terminator (SW01)

7. Address setup

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

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

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

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

<Procedure> Perform setup while the unit stops.

VENT

1 Push

2 Using temperature setup 3 Using timer time

4 Push

5 Push

TEST

buttons for 4 seconds or more.

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

UNIT LOUVER

button.)

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

TEMP.

buttons, specify CODE No. !.

TIME

buttons, select the setup data.

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

SET

button. (OK if display goes on.)

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

TEST

button.

(Fig.1)

The status returns to usual stop status.

(Table 1)

WING/FI

N / OF

MOD

3 1

Setup data

0001 0002 0003

0064

0099

Central control address No.

1 2 3

Unset (Setup at shipment from factory)

2 1

TIMER SE

TESTRESE

– 64 –

Page 65

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

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

1 Push

UNIT LOUVER

button for 4 seconds or more.

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

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

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

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

– 65 –

Page 66

10. ADDRESS SETUP

10-1. Address Setup Procedure

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

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

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

Completion of cabling work

Do you arbitrarily set the

indoor unit address?

YES

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

Turn on power of outdoor unit.

Set to all indoor units one by one.

(MANUAL)

Is group control performed?

YES

Do you change setting after

automatic setting at the first time?

YES

Turn on power of outdoor unit.

After completion of address setup, change is to arbitral

( )

address/group manually.

(To AUTO address mode)

Setup of automatic address finishes within

( )

4 to 5 minutes.

Is refrigerant line 1 line?

Turn on power of outdoor unit.

YES

END

• When the following addresses are not stored in the neutral memory (IC503) on the indoor P.C. board, a test run operation cannot be performed. (Unfixed data at shipment from factory)

Line address

Indoor unit address

Group address

CODE No.

Data at shipment

0099

Setup data range

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

0001 (No. 1 unit) to 0064 (No. 64 unit) Max. value of indoor units in the identical refrigerant line

0000 : Individual (Indoor units which are not controlled in a group) 0001 : Header unit (1 indoor unit in group control) 0002 : Follower unit (Indoor units other than master unit in group control)

– 66 –

Page 67

10-2. Address Setup & Group Control

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

Group address : 0 = Single (Not group control)

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

Header unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals

to/from the remote controllers and follower indoor units. (∗ It has no relation with an indoor unit which communicates serially with the outdoor units.)

The operation mode and setup temperature range are displayed on the remote controller LCD. (Except air direction adjustment of louver)

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

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

10-2-1. System Configuration

1. Single

Outdoor

Indoor

Remote controller

2. Single group operation

• Each indoor unit controls the outdoor unit individually.

2-1

Header/Sub

1-1

Header/Sub

4-1

Header/Master

1-1

Individual

(Header/Master)

3-1

Header/Sub

8-1

Header/Sub

– 67 –

Page 68

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

1. Standard (One outdoor unit)

1) Single

1-1

Individual

(Header/Master)

Only turning on source power supply (Automatic completion)

2. Group operation

(Multiple outdoor units = Multiple indoor units with serial communication only, without twin)

2-1

Header/Sub

1-1

Header/Sub

3-1

Header/Master

8-1

Header/Sub

(Max. : 8 units)

Only turning on source power supply (Automatic completion)

– 68 –

Page 69

LOUVER

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

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

• Set an indoor unit per a remote controller.

• Turn on power supply.

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

Outdoor

1 23

Outdoor

1 2 3

Line address → 1

Indoor unit address → 1

Group address → 1

1 Push

SET

+ CL +

TEST

buttons simultaneously

for 4 seconds or more.

←←

2 (

← Line address)

←←

Using the temperature setup

12 to the CODE No.

set

/ buttons,

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

SET

button. (OK when display goes on.)

←←

← Indoor unit address)

←←

Using the temperature setup

/ buttons, set 13 to the CODE No.

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

SET

button. (OK when display goes on.)

←←

← Group address)

←←

Using the temperature setup

/ buttons, set 14 to the CODE No.

1 2 3

Indoor

A B

Remote controller

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

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

1 2 3

Indoor

A B

2 1 2

In case of group control

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

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

SET

button. (OK when display goes on.)

TEST

button.

2, 5, 8

END 11

TESTRESE

TIMER SE

TIM

WING/FI

N / OF

MOD

VEN

3, 6, 9

4, 7, 10

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

– 69 –

Page 70

LOUVER

n Confirmation of indoor unit No. position

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

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

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

UNIT LOUVER

ON / OFF

UNIT LOUVER

button.

button if the unit stops.

button.

TESTRESE

TIMER SE

WING/FI

N / OF

MOD

Operation

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

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

The indoor unit numbers in the group control are successively displayed, and fan, 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, the unit numbers

in the group control are successively displayed.

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

1 2

END

TESTRESE

1 2 3

TIMER SE

END

WING/FI

N / OF

MOD

– 70 –

Page 71

Concealed Duct High Static Pressure

Owner’s Manual

Concealed Duct High Static Pressure

Owner’s Manual

11. OWNER’S MANUAL

Original instruction

ADOPTION OF NEW REFRIGERANT

This Air Conditioner uses R410A an environmentally friendly refrigerant.

This appliance is not intended for use by person (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

Contents

1 PRECAUTIONS FOR SAFETY .......................................................................................... 4

2 PART NAMES.................................................................................................................... 7

3 WIRED REMOTE CONTROLLER ..................................................................................... 8

– 71 –

4 CORRECT USAGE ........................................................................................................... 11

5 TIMER OPERATION......................................................................................................... 13

6 POWER SAVING MODE .................................................................................................. 14

7 ADVANCED SETTINGS ................................................................................................... 15

8 ENERGY SAVING RECOMMENDATIONS ...................................................................... 16

9 MAINTENANCE ............................................................................................................... 17

10 AIR CONDITIONER OPERATIONS AND PERFORMANCE ........................................... 19

11 INSTALLATION ................................................................................................................ 20

12 TROUBLESHOOTING ..................................................................................................... 21

13 SPECIFICATIONS ........................................................................................................... 22

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. Some of the details provided in these instructions differ from the Installation Manual supplied with your product, and the

instructions provided here take precedence. After reading these instructions, be sure to keep them in a safe place together with the Owner’s Manual and Installation

Manual supplied with your product.

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

• 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 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 Cor poration 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 Cor poration 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.

Qualifications and knowledge which the agent must have

– 1 – – 2 –

Page 72

Concealed Duct High Static Pressure

Owner’s Manual

Concealed Duct High Static Pressure

Owner’s Manual

n Warning Indications on the Air Conditioner Unit

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.

– 72 –

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.

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.

1 PRECAUTIONS FOR SAFETY

WARNING

General

• Carefully read Owner’s Manual before starting the air conditioner. There are many important things to keep in mind for daily operation.

Transportation and storage

• 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.

• When stacking the packing cartons for storage or transportation, heed the precautions written on the packing cartons. Failure to heed the precautions may cause the stack to collapse.

Installation

• 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.

• After the installation work has been completed, have the installer explain about the circuit breaker positions. In the event that trouble has occurred in the air conditioner, set the circuit breaker to the OFF position, and contact a service person.

• 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 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.

Operation

• 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.

• Inside the air conditioner are high-voltage areas and rotating parts. Due to the danger of electric shocks or of your fingers or physical objects becoming trapped in the rotating parts, do not remove the intake grille of the indoor unit or service panel of the outdoor unit. When work involving the removal of these parts is required, contact a qualified installer or a qualified service person.

• Do not move or repair any unit by yourself. Since there is high voltage inside the unit, you may get electric shock when removing the cover and main unit.

• Use of a stand more than 50 cm high to clean the filter of the indoor unit or to carry out other such jobs constitutes working at heights. Due to the danger of falling off the stand and injuring yourself while working at heights, this kind of work should not be done by unqualified individuals. When this kind of work must be carried out, do not do it yourself but ask a qualified installer or a qualified service person to do it for you.

• Do not touch the aluminum fin of the outdoor unit. You may injure yourself if you do so. If the fin must be touched, do not touch it yourself but contact a qualified installer or a qualified service person.

• 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.

• 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.

• When the air conditioner is operated with a combustion appliance in the same place, be careful of ventilation to let fresh air enter the room. Poor ventilation causes oxygen shortage.

• When the air conditioner is used in a closed room, be careful of sufficient ventilation of the room. Poor ventilation causes oxygen shor tage.

Repairs

• 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, etc.

• If you have discovered that there is a danger of the indoor unit’s falling, do not approach the indoor unit but set the circuit breaker to the OFF position, and contact a qualified installer or a qualified service person to refit the unit. Do not set the circuit breaker to the ON position until the unit has been refitted.

• If you have discovered that there is a danger of the outdoor unit’s toppling over, do not approach the outdoor unit but set the circuit breaker to the OFF position, and contact a qualified installer or a qualified service person to have the improvements or refitting done. Do not set the circuit breaker to the ON position until the improvements or refitting is completed.

– 3 – – 4 –

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Relocation

• When the air conditioner is to be relocated, do not relocate it yourself but contact a qualified installer or a qualified service person. Failure to relocate the air conditioner properly may result in electric shocks and/or a fire.

(∗1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAINS SUPPLY

• This appliance must be connected to the mains by means of a switch with a contact separation of at least 3 mm.

• The installation fuse 25A must be used for the power supply line of this air conditioner.

CAUTIONS ABOUT INSTALLATION (Be sure to confirm the following cautions.)

• Certainly lay the drain hose for perfect draining. Bad drainage may cause flooding in the house and getting furniture wet.

• Make sure to connect the air conditioner to an exclusive power supply of the rated voltage, otherwise the unit may break down or cause a fire.

CAUTIONS ABOUT OPERATION

• Do not use this air conditioner for special purpose such as preserving food, precision instruments, art objects, breeding animals, car, vessel, etc.

• Do not touch any switches with wet finger, otherwise you may get an electric shock.

• If the air conditioner will not be used for a considerably long time, turn off the main switch or the circuit breaker, for safety.

• To make the air conditioner operate in its original performance, operate it within the range of the operating temperature specified in the instructions. Otherwise it may cause a malfunction, or water leak from the unit.

• Prevent any liquid from falling into the remote controller. Do not spill juice, water or any kind of liquid.

– 73 –

n Information on the Transportation, Handling and Storage of the Carton

Examples of indication on the carton

Symbol

11 cartons

Description

Keep dry

Fragile

Stacking height (12 cartons can be stacked in this case)

This side up

Handle with care

Symbol Description

Do not drop

Do not lay down

Do not walk on this carton

Do not step

Other cautions

CAUTION

Injury possibility.

Don’t hande with packing band, or may get injured in case of brolen band.

CAUTION

Injury possibility.

Don’t handle with packing band, or may get injured in case of broken band.

Stacking notice.

In case that cardboard boxes protrude out of pallet when stacking.

Lay a 10 mm thick plywood over the pallet.

– 5 – – 6 –

Description

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2 PART NAMES

n Indoor unit

Separate sold part

– 74 –

n Outdoor unit

Remote controller

Air discharge

Connect a discharge duct.

Air intake

Connect a suction duct.

Electrical control box

The earth screw is provided in the electrical control box.

Drain pan

3 WIRED REMOTE CONTROLLER

This remote controller can control the operation of up to 8 indoor units.

n Display section

In the display illustration below all the icons are shown. When the unit is in operation, only relevant icons will be displayed.

• When turning on the leak breaker at the first time, on the display part of the remote controller.

• While this icon is flashing, the model is being automatically confirmed. Wait till

icon has disappeared to use the remote controller.

1 2

flashes

TESTRESE

TIMER SE

WING/FI

Display section

N / OF

MOD

Operation

NIT LOUVE

section

Air intake (Side and rear)

Front panel

There is an earth screw, valves, and electric parts inside.

Air discharge

Pipe cover

Mounting leg

– 7 – – 8 –

Wire connection holes

Refrigerant pipe connection holes

1 Operation mode

The selected operation mode is displayed.

2 Error display

Displayed while the protective device works or a error occurs.

3 SETTING display

Displayed during setup of the timer or other settings.

4 TEST run display

Displayed during a test run.

5 Timer display

When an error occurs, error code is displayed.

6 Timer mode display

The selected timer mode is displayed.

7 Filter display

Reminder to clean the air filter.

8 Fan speed display

Fan speed is not adjustable. It is fixed to High.

(HIGH)

9 Set temperature display

The selected set temperature is displayed.

10 Power saving mode display

Limits compressor speed (capacity) to save energy.

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n Operation section

Push each button to select a desired operation.

• The control saves commands in memory and after the initial setting, there is no need for any additional settings unless changes are desired. The air conditioner can be operated by pushing the

button.

5 7

– 75 –

11 UNIT No. display

Displays the number of the indoor unit selected.

Also displays error code of indoor and outdoor units.

12 Central control display

Displayed when the air conditioner is used under the central control in combination with a central control remote controller.

In case the remote controller is disabled by the central control system,

The button operation is not accepted.

Even when you push ON/OFF, MODE, or TEMP. button, and the button operation is not accepted.

(Settings made by the remote controller vary with the central control mode. For details, refer to the Owner’s Manual of the central control remote controller.)

1 2 6

flashes.

13 Remote controller sensor display

Displayed while the sensor of the remote controller is used.

14 Pre-heat display

Displayed when the heating mode is energized or defrost cycle is initiated.

While this icon is displayed, the indoor fan stops.

15 No function display

Displayed when the function requested is not available on that model.

13 15

1 2

3 4

1 button (Temperature set button)

Adjusts the set point.

Select the desired set point by pushing

TEMP. or TEMP. .

2 button (Timer set button)

Use to setup the timer.

3 button (Filter reset button)

Resets “ ” icon after cleaning filter.

4 button (Test button)

Use only for service. (During normal operation, do not use this button.)

5 button

When the button is pushed, the operation starts, and it stops by pushing the button again.

When the operation has stopped, the operation lamp and all the displays disappear.

6 Operation lamp

Green light illuminates when unit is on. Although it flashes when operating the protection

device or an error occurs.

7 button (Operation mode button)

Selects desired operation mode.

8 button (Fan speed button)

Fan speed is not adjustable.

It is fixed to High.

9 button (Ventilation button)

Use when a power ventilation kit (locally procured) is connected.

” is displayed on the remote controller

• If “ when this button is pushed no vent kit connected.

10 button (Power save operation)

Use to initiate power saving mode.

11 button (Unit/Louver select button)

Selects a unit number (left) and louver number (right).

UNIT:

Selects an indoor unit when multiple indoor units are controlled with one remote controller.

LOUVER:

No Function.

12 button (Swing/Louver direction

button)

No Function.

OPTION :

Remote controller sensor

Usually the temperature sensor of the indoor unit senses the temperature.

The temperature on the surrounding of the remote controller can also be sensed.

For details, contact the dealer from which you have purchased the air conditioner.

– 9 – – 10 –

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4 CORRECT USAGE

• When you use the air conditioner for the first time or when you change the setting, follow the steps below. Settings are saved in memory and are displayed anytime the unit is tur ned on by pushing the

n Preparation

Turn on the main power switch and/or the leakage breaker.

• When the power supply is turned on, a partition line is displayed on the display part of the remote controller.

• After the power supply is turned on, the remote controller does not accept an operation for approx. 1 minute, but it is not a failure.

REQUIREMENT

• While using the air conditioner, operate it only with button without turning off the main power switch and the leakage breaker.

• When you re-power the air conditioner after it has not been used for a long period, turn on the leakage breaker at least 12 hours before starting the air conditioner. (This is required to turn on the compressor case heater for warming in order to prevent overload on the compressor when activating the outdoor unit.)

Stop

Push button.

– 76 –

RESE

Start

1 Push button.

The operation lamp illuminates, and the operation starts.

2 Select an operation mode with the

” button.

“

One push of the button, and the display changes in the order shown below.

Aut

N / OF

FanCool

The operation lamp goes off, and the operation stops.

NOTE

Auto Changeover

• When in Auto Mode, the unit selects the operating mode

(cooling, heating or fan only) based on the user selected set point temperature.

• If the Auto mode is uncomfortable, you can select the desired conditions manually.

Cooling

• If there is a demand for cooling, unit will start approximately 1 minute after mode is selected.

Heating

• If there is a demand for heating, unit will start approximately 3 to 5 minutes after the mode is selected.

• After the heating operation has stopped, fan may continue to run for approx. 30 seconds.

• When the room temperature reaches the set temperature, the outdoor unit stops and the indoor unit will carry on fan operation.

During defrost operation, the fan stops so that cool air is not discharged. (“

When restarting the operation after stop

• When attempting to restart the unit immediately after it was stopped, the unit can not start for approx. 3 minutes this is to protect the compressor.

3 Select a desired set point by pushing

the “TEMP.

” or “TEMP. ” button.

button.

” Pre-heat is displayed.)

n 8°C OPERATION (For object pre-heating)

(Available for Super Digital Inverter outdoor units)

The air conditioner can control the heating temperature to about 8°C in the heating mode. The 8°C heating operation requires settings with the wired remote controller. Ask the installer or dealer for the settings

according to the installation manual of the indoor unit.

Start

1 Set the displayed temperature to 18°C in the heating mode by pushing TEMP. button. 2 Set the displayed temperature to 8°C by pushing TEMP.

Stop

1 Set the displayed temperature to 18°C by pushing TEMP. button.

• The air conditioner returns to the normal HEAT mode. Select a desired temperature and operation mode.

NOTE

• The discharged air temperature is lower than that in the normal heating operation.

• The room temperature may not be heated evenly depending on the remote controller installation location.

• The room temperature may not reach 8°C depending on the room size or the installation conditions. The 8°C heating operation is cancelled in the following cases.

• When operation is stopped with

• When another operation mode is selected with

• When temperature setting or operation mode is changed or operation is started/stopped by the wireless remote

controller or the central control remote controller.

• If one or more models other than the 4-way air discharge cassette type (4 series), slim duct, Concealed Duct High Static Pressure are connected in the same control group, the 8°C heating operation is not available.

• When you use this operation mode, observe proper operating hours and we recommend that you ask service staff for periodic maintenance of the air conditioner.

button

button for at least four seconds.

button

– 11 – – 12 –

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5 TIMER OPERATION

• Three timer modes are available: (Setting of up to 168 hours is enabled.) Off timer : The unit stops when the set time is reached. Repeat Off timer : The unit stops daily when the set time is reached. On timer : The unit starts when the set time is reached.

Set

1 Push button.

The timer mode changes with every push of the button.

– 77 –

Off Off On

(Off timer) (On timer)(Repeat Off timer)

No display

•

and timer display flashes.

2 Push to select “set time”.

• With every push of button, the set time increases by 0.5 hr (30 minutes). When setting a time more than 24 hours for timer operation, timer can be set in increments of 1 hr. The maximum set time is 168hr (7 days). The remote control displays the set time with time (between 0.5 and 23.5 hours) (∗1) or number of days and time (24 hours or more) (∗2) as shown below.

• With every push of decreases by 0.5 hr (30 minutes) (0.5 - 23.5 hours) or 1 hr (24 - 168 hours).

Example of remote control display

• 23.5 hours (∗1)

button, the set time

2 4

3 Push button.

• icon disappears and time display goes on, and

or icon flashes.

(When On timer is activated, time and On timer

are icons and other icons disappear.)

4 Cancel timer operation

Push

button.

Timer icon disappears.

NOTE

• When the operation stops after the timer reached the preset time, the Repeat Off timer resumes the operation by pushing the time of the timer has reached the set time.

• When you push the air conditioner is active, the indication of the timer function disappears and then appears again after about 5 seconds.

This is due to normal processing of the remote controller.

button and stops the operation after

while the Off timer function of

6 POWER SAVING MODE

• The power saving mode saves energy by limiting the maximum current which will effect heating or cooling capacity that the unit can generate.

Push button during operation.

• The air conditioner enters power saving mode.

appears on the display.

•

Power saving mode will stay in effect until it is cancelled.

To cancel the power saving mode, push

• disappears.

NOTE

• When other electric appliances are used at the same time, to avoid triggering the circuit breaker, power saving mode is recommended. Of course you can use power saving mode to save energy as well.

• Power saving mode consumes less energy, but may not heat/cool the room as much as normal mode. (The maximum current is limited to approximately 75% (factory default) of the normal mode.)

• To adjust the power-save settings, see “Power saving mode” in ADVANCED SETTINGS.

• Even when operation start/stop, operation mode change, or power reset is performed during the power saving mode, the power saving mode is retained until the next operation.

button again.

• 34hours (∗2)

Number of days Time

shows 1 day (24 hours).

shows 10 hours. (Total 34 hours)

– 13 – – 14 –

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7 ADVANCED SETTINGS

n Power saving mode

1 Push button for at least four seconds when the air conditioner is not working.

– 78 –

• , symbol, and numbers flash.

2 Push (left side of the button) to select an indoor unit to be set.

• Each time you push the button, UNIT No. change as follows:

3 Push TIME / buttons, to adjust the power saving mode setting.

• Each push of the button changes the power level by 1% within the range from 100% to 50%.

• The factory default is 75%.

UNIT No.

1-1

The fan of the selected unit runs.

UNIT No.

1-2

UNIT No.

1-4

1 3

UNIT No.

1-3

8 ENERGY SAVING RECOMMENDATIONS

Select a comfortable set point and minimize adjusting it.

• Clean the filter when ever the filter display is illuminated on remote controller.

• Keep doors and windows closed and open them only when necessary.

• Use drapes, curtains, or shades to keep direct sun light from heating the room on very hot days.

• Do not obstruct the return air grille. Adjust the air flow direction for even air distribution in the room.

Checks before operating

• Check whether the earth wires are properly connected.

• Check whether the air filters are installed.

• Turn on the leakage breaker at least 12 hours before operating.

Protective device

• The protective device stops operation when the air conditioner is overloaded.

• When the protective device is activated, the current operation stops and the operation lamp and

on the remote controller flash.

When the protective device is activated

• When the protective device has been activated and stopped operation, turn off the leakage breaker immediately, and ask the installer to find the cause.

If the air conditioner is operated without fixing the problem, the air conditioner may malfunction.

• Check whether the air filters are installed. If the air filters are not installed, the air heat exchanger may be clogged with dust, which may result in water leakage.

For cooling

• When the air inlet and/or outlet of the outdoor unit are blocked

• When the air outlet of the outdoor unit is continuously exposed to strong wind

For heating

• When the air filters are clogged with too much dust or dirt

• When the suction port and/or discharge port of the indoor unit are blocked

Clean, please.

Please close

4 Push button. 5 Push button to complete the setting.

Do not turn off the leakage breaker

• Do not turn off the leakage breaker during a test run of the air conditioner. Use the ON/OFF button on the air conditioner

Setting of power level in power saving mode

– 15 – – 16 –

instead to control the power.

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9 MAINTENANCE

WARNING

Cleaning the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a qualified installer or qualified service person to do it. Do not attempt it by yourself.

Cleaning air filters

Clogged air filters will reduce the cooling and heating performance.

1 If “ ” is displayed on the remote controller, clean the air filters. 2 When the cleaning of air filters has been completed, push button.

“ ” disappears.

CAUTION

Cleaning remote controller

• Use a dry cloth to wipe the remote controller.

• Never use a damp cloth on the remote controller.

• Do not use a chemically-treated duster for wiping or leave such materials on the unit for long. It may damage or fade the surface of the unit.

• Do not use benzine, thinner, polishing powder, or similar solvents for cleaning.

– 79 –

These may cause the plastic surface to crack or deform.

Periodic check

Long-period use of the air conditioner may cause deterioration or failure of parts due to heat, humidity, dust, and operating conditions, or may cause poor drainage of dehumidified water.

Preparing for long Shut Down Period

1) Clean the filters and reposition them in unit.

2) Operate the unit in fan mode for 3 or 4 hours to dry all internal par ts.

3) Turn the unit off and disconnect the main power supply.

4) Before unit is turned on again, make sure the circuit breaker has been

turned on for at least 12 hours.

Maintenance List

Part

Heat exchanger

Fan motor

Filter

Fan

Air inlet/outlet grilles

Drain pan

Ornamental panel, louvers

Exterior

Unit

Indoor/outdoor

Indoor

Indoor/outdoor

Indoor

Outdoor

Check (visual/auditory)

• Dust/dirt clogging, scratches

• Sound

• Dust/dirt, breakage

• Vibration, balance

• Dust/dirt, appearance

• Dust/dirt, scratches

• Dust/dirt clogging, drain contamination

• Dust/dirt, scratches

• Rust, peeling of insulator

• Peeling/lift of coat

Maintenance

• Wash the heat exchanger when it is clogged.

• Take appropriate measures when abnormal sound is generated.

• Wash the filter with water when it is contaminated.

• Replace it when it is damaged.

• Replace the fan when vibration or balance is terrible.

• Brush or wash the fan when it is contaminated.

• Fix or replace them when they are deformed or damaged.

• Clean the drain pan and check the downward slope for smooth drainage.

• Wash them when they are contaminated or apply repair coating.

• Apply repair coating

Check points before operation

1) Check that the air filters are installed.

2) Check that the air outlet or inlet is not blocked.

3) Turn on the main power switch or the circuit breaker for the main power supply to the air conditioner.

NOTE

For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner in use be cleaned and maintained regularly to ensure efficient operation of the air conditioner.

When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended. Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof treatment, if

necessary. As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor unit at least

once every 3 months. Ask a professional for this cleaning/maintenance work. Such maintenance can extend the life of the product though it involves the owner’s expense. Failure to clean the indoor and outdoor units regularly will result in poor performance, freezing, water leakage, and even

compressor failure.

– 17 – – 18 –

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10 AIR CONDITIONER OPERATIONS AND

PERFORMANCE

3 minutes protection function

3-minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main power switch/ circuit breaker is turned on for re-starting the air conditioner.

Power failure

Power failure during operation will stop the unit completely.

• To restart the operation, push the ON/OFF button on the remote controller.

• Lightning or a wireless car telephone operating nearby may cause the unit to malfunction. Turn off the main power switch or circuit breaker and then turn them on again. Push the ON/OFF button on the remote controller to restart.

Heating characteristics

Preheating operation

The air conditioner will not deliver warm air immediately after it is turned on. Warm air will start to flow out after approximately 5 minutes when the indoor heat exchanger warmed up.

Warm air control (In heating operation)

When the room temperature has reached the set temperature while the outdoor unit is stopping, the indoor unit discharges

– 80 –

wind with a very small air volume.

Defrosting operation

If the outdoor unit is frosted during the heating operation, defrosting starts automatically (for approximately 2 to 10 minutes) to maintain the heating capacity.

• The fans in both indoor and outdoor units will stop during the defrosting operation.

• During the defrosting operation, the defrosted water will be drained from the bottom plate of the outdoor unit.

Heating capacity

In the heating operation, the heat is absorbed from the outside and brought into the room. This way of heating is called heat pump system. When the outside temperature is too low, it is recommended to use

another heating apparatus in combination with the air conditioner.

11 INSTALLATION

Do not install the air conditioner in the following places

• Do not install the air conditioner in any place within 1 m from a TV, stereo, or radio set. If the unit is installed in such place, noise transmitted from the air conditioner affects the operation of these appliances.

• Do not install the air conditioner near a high frequency appliance (sewing machine or massager for business use, etc.), otherwise the air conditioner may malfunction.

• Do not install the air conditioner in a humid or oily place, or in a place where steam, soot, or corrosive gas is generated.

• Do not install the air conditioner in a salty place such as seaside area.

• Do not install the air conditioner in a place where a great deal of machine oil is used.

• Do not install the air conditioner in a place where it is usually exposed to strong wind such as in seaside area.

• Do not install the air conditioner in a place where sulfureous gas generated such as in a spa.

• Do not install the air conditioner in a vessel or mobile crane.

• Do not install the air conditioner in an acidic or alkaline atmosphere (in a hot-spring area or near a chemicals factory, or in a place subject to combustion emissions).

Corrosion may be generated on the aluminum fin and copper pipe of the heat exchanger.

• Do not install the air conditioner near an obstacle (air vent, lighting equipment, etc.) that disturbs discharge air. (Turbulent airflow may reduce the performance or disable devices.)

• Do not use the air conditioner for special purposes such as preserving food, precision instruments, or art objects, or where breeding animals or growing plants are kept. (This may degrade the quality of preserved materials.)

• Do not install the air conditioner over an object that must not get wet. (Condensation may drop from the indoor unit at a humidity of 80% or more or when the drain port is clogged.)

• Do not install the air conditioner in a place where an organic solvent is used.

• Do not install the air conditioner near a door or window subject to humid outside air. Condensation may form on the air conditioner.

• Do not install the air conditioner in a place where special spray is used frequently.

Be careful with noise or vibrations

• Do not install the air conditioner in a place where noise by outdoor unit or hot air from its air outlet annoys your neighbors.

• Install the air conditioner on a solid and stable foundation so that it prevents transmission of resonating, operation noise and vibration.

• If one indoor unit is operating, some sound may be audible from other indoor units that are not operating.

Attention to snowfall and freeze on the outdoor unit

• In snowy areas, the air inlet and air outlet of the outdoor unit are often covered with snow or frozen up. If snow or freeze on the outdoor unit is left as it is, it may cause machine failure or poor warming.

• In cold areas, pay attention to the drain hose so that it perfectly drains water without water remaining inside for freeze prevention. If water freezes in the drain hose or inside the outdoor unit, it may cause machine failure or poor warming.

Air conditioner operating conditions

For proper performance, operate the air conditioner under the following temperature conditions:

Outdoor temperature : –15°C to 46°C

Cooling operation

Heating operation

If air conditioner is used outside of the above conditions, safety protection may work.

Room temperature : 21°C to 32°C (Dry bulb temp.), 15°C to 24°C (Wet bulb temp.)

[CAUTION]

Outdoor temperature : –20°C to 15°C (Wet bulb temp.)

Room temperature : 15°C to 28°C (Dry bulb temp.)

Room relative humidity – less than 80 %. If the air conditioner operates in excess of this figure, the surface of the air conditioner may cause dewing.

– 19 – – 20 –

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12 TROUBLESHOOTING

CAUTION

If any of the following conditions occur, turn off the main power supply switch and immediately contact the dealer :

• Switch operation does not work properly.

• The main power fuse often blows out, or the circuit breaker is often activated.

• A foreign matter or water fall inside the air conditioner.

• When the air conditioner does not operate even after the cause of the protective device activation has been removed. (The operation lamp and

• Any other unusual conditions are observed.

Before you ask for servicing or repairs, check the following points.

u Recheck

Inoperative

• The main power switch is turned off.

• The circuit breaker is activated to cut off power supply.

• The main power fuse has blown out.

Does not cool well or heat well

• The air inlet and/or outlet of the outdoor unit is blocked.

– 81 –

• Doors or windows are opened.

• The set temperature is too high (In cooling) or low (In heating).

u These are not failures.

Indoor unit or outdoor unit makes a strange noise.

• When the temperature suddenly changes, the indoor or outdoor unit occasionally makes a strange noise because of expansion/ contraction of parts or change of refrigerant flow.

• Air leaking noise is heard occasionally. It is generated by the solenoid valve when it is actuated.

• A clattering sound is heard when the power is turned on. It is generated by the outdoor unit during preparation for operation.

The room air is smelly or a bad odor comes from the air conditioner.

• Smells impregnated in the walls‚ carpets, furniture, clothing, or furs, come out.

Outdoor unit is frosted in heating operation. Water drains from outdoor unit.

• he outdoor unit is sometimes frosted in heating operation. In that case, the unit automatically performs defrosting (for 2 to 10 minutes) for increasing the heating efficiency.

• In defrosting operation, both the indoor and outdoor units stop air flow.

• Hiss sound is heard when flow of the refrigerant is changed for defrosting.

• Resultant water of automatic defrosting in heating operation drains from outdoor unit.

A white mist of chilled air or water is generated from the outdoor unit.

• When the indoor unit in cooling operation or the outdoor unit in defrosting operation occasionally steams. Check these items. If any of these problems still remains, stop the operation, turn off the leakage breaker, and then

notifies the dealer of the serial number and details of the error. Never repair any part by yourself as it is dangerous.

and a combination of

When the dealer of the display content.

on the remote controller are flashing.)

,,,or

and a number are displayed on the remote controller, also inform

13 SPECIFICATIONS

Model

RAV-SM2242DT-E

RAV-SM2802DT-E

Declaration of Conformity

Manufacturer: Toshiba Carrier Corporation

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

Hereby declares that the machinery described below:

Generic Denomination: Air Conditioner

Model/type: RAV-SM2242DT-E,

Commercial name: Digital Inverter Series Air Conditioner

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

Complies with the provisions of the following harmonized standard:

NOTE

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

Information according to EMC Directive 2004/108/EC

(Name of the manufacture) TOSHIBA CARRIER CORPORATION

(Address, city, country) 336 Tadehara, Fuji-shi, Shizuoka-ken

(Name of the Importer/Distributor) TOSHIBA CARRIER UK Ltd.

(Address, city, country) Porsham Close, Belliver Industrial Estate, PLYMOUTH,

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

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

RAV-SM2802DT-E, RAV-SM2242DT-TR, RAV-SM2802DT-TR

EN 378-2: 2008

Sound power level (dB)

Cooling Heating

74 74

75 75

416-8521 Japan

Devon, PL6 7DB. United Kingdom

Weight (Kg)

160

– 21 – – 22 –

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Installation Manual

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Installation Manual

12. INSTALLATION MANUAL

Original instruction

ADOPTION OF NEW REFRIGERANT

This Air Conditioner uses R410A an environmentally friendly refrigerant.

Contents

1 PRECAUTIONS FOR SAFETY .......................................................................................... 5

2 ACCESSORY PARTS ......................................................................................................... 8

3 SELECTION OF INSTALLATION PLACE.......................................................................... 9

4 INSTALLATION ................................................................................................................ 11

– 82 –

5 FAN CHARACTERISTICS................................................................................................ 15

6 DRAIN PIPING WORK ..................................................................................................... 18

7 REFRIGERANT PIPING AND EVACUATING .................................................................. 22

8 ELECTRICAL CONNECTION .......................................................................................... 25

9 APPLICABLE CONTROLS .............................................................................................. 28

10 TEST RUN ........................................................................................................................35

11 MAINTENANCE ............................................................................................................... 36

12 TROUBLESHOOTING ...................................................................................................... 38

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. Some of the details provided in these instructions differ from the Installation Manual supplied with your product, and the

instructions provided here take precedence. After reading these instructions, be sure to keep them in a safe place together with the Owner’s Manual and Installation

Manual supplied with your product.

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service Person

below.

Agent

Qualified installer

Qualified service person

• The qualified installer is a person who installs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation.

• 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 Cor poration 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 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.

Qualifications and knowledge which the agent must have

– 1 – – 2 –

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Definition of Protective Gear

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

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

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

Work undertaken

All types of work

Electrical-related work

Work done at heights (50 cm or more)

Transportation of heavy objects

Repair of outdoor unit

Protective gloves “Safety” working clothing

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

Helmets for use in industry

Shoes with additional protective toe cap

Gloves to provide protection for electricians and from heat

Protective gear worn

– 83 –

n Warning Indications on the Air Conditioner Unit

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.

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

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.

– 3 – – 4 –

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.

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1 PRECAUTIONS FOR SAFETY

WARNING

General

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

• Only a qualified installer (*1) or qualified service person (*1) is allowed to install the air conditioner. If the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result.

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

• Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker to the OFF position. Otherwise, electric shocks may result.

• Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair or removal work is being carried out. There is a danger of electric shocks if the circuit breaker is set to ON by mistake.

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

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

• Do not touch the aluminium fin of the outdoor unit. You may injure yourself if you do so. If the fin must be touched for some reason, first put on protective gloves and safety work clothing, and then proceed.

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

• When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the procedure in the

– 84 –

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

• When cleaning the filter or other parts of the outdoor 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 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.

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

• You shall ensure that the air conditioner is transported in stable condition.

• Do not move or repair any unit by yourself. There is high voltage inside the unit. You may get electric shock when removing the cover and main unit.

Selection of installation location

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

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

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

• 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.

• 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.

Installation

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

• Install the air conditioner at enough strong places to withstand the weight of the unit. If the strength is not enough, the unit may fall down resulting in injury.

• Follow the instructions in the Installation Manual to install the air conditioner. Failure to follow these instructions may cause the product to fall down or topple over or give rise to noise, vibration, water leakage, etc.

• The designated bolts (M10, M12) and nuts (M10, M12) for securing the outdoor unit must be used when installing the unit.

• Install the outdoor unit property in a location that is durable enough to support the weight of the outdoor unit. Insufficient durability may cause the outdoor unit to fall, which may result in injury.

– 5 – – 6 –

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.

• 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.

• After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may be generated.

• 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.

• Nitrogen gas must be used for the airtight test.

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

• If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked refrigerant gas comes in contact with fire, noxious gas may be generated.

Electrical wiring

• Only a qualified installer (∗1) or qualified service person (∗1) is allowed to carry out the electrical wor k 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 connecting the electrical wires, repairing the electrical parts or under taking other electrical jobs, wear gloves to provide protection for electricians and from heat, insulating shoes and clothing to provide protection from electric shocks. Failure to wear this protective gear may result in electric shocks.

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

• Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.

• Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for telephone wires.

• After completing the repair or relocation work, check that the ground 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 must the power cable be extended. Connection trouble in the places where the cable is extended may give rise to smoking and/or a fire.

• Electrical wiring work shall be conducted according to law and regulation in the community and 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.

• After the work has finished, be sure to use an insulation tester set (500V Megger) to check the resistance is 2 MΩ 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.

• Upon completion of the installation work, check for refrigerant leaks and check the insulation resistance and water drainage. Then conduct a test run to check that the air conditioner is operating properly.

Explanations given to user

• Upon completion of the installation work, tell the user where the circuit breaker is located. If the user does not know where the circuit breaker is, he or she will not be able to turn it off in the event that trouble has occurred in the air conditioner.

• If you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF position, and contact a qualified service person (∗1) to have the repairs done. Do not set the circuit breaker to the ON position until the repairs are completed.

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

Relocation

(∗1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”

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CAUTION

New Refrigerant Air Conditioner Installation

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER.

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

1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed. Therefore, during installation work, be

sure that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle.

• To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main unit and installation tools are changed from those for the conventional refrigerant.

• Accordingly the exclusive tools are required for the new refrigerant (R410A).

• For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not enter.

To Disconnect the Appliance from Main Power Supply.

• This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.

• The installation fuse must be used for the power supply line of this conditioner.

– 85 –

2 ACCESSORY PARTS

Part name

Installation Manual

Owner’s Manual

Heat insulator

Joint (Ø22.2 – Ø28.6 mm)

Q’ty

Shape

This manual

Usage

(Be sure to hand over to customers) (For other languages that do not appear in this Installation Manual, please refer to the enclosed CD-R.)

(Be sure to hand over to customers)

For heat insulation of Gas pipe connecting section

For heat insulation of Liquid pipe connecting section

For connecting the gas side pipe

– 7 – – 8 –

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3 SELECTION OF INSTALLATION PLACE

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.

Avoid installing in the following places.

• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas (hot spring). (Should the unit be used in these places, special protective measures are needed.)

• A restaurant kitchen where a lot of oil is used or place near machines in a factory (Oil adhering to the heat exchanger and resin part (fan) in the indoor unit may reduce the performance, generate mist or dew drop, or deform or damage resin parts.)

• Place where organic solvent is used nearby.

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

• Place with poor ventilation. (Before air duct installation, check whether value of air volume, static pressure and duct resistance are correct.)

• Place where any of high-frequency appliances (including inverter devices, private power generators, medical equipment, and communication equipment) and inverter-type fluorescent light is installed.

– 86 –

(A malfunction of the air conditioner, abnormal control, or problems due to noise to such appliances/equipment may occur.)

• When the wireless remote controller is used in a room equipped with an inverter-type fluorescent light or at a place exposed to direct sunlight, signals from the remote controller may not be received correctly.

• Place where organic solvent is used.

• Place where special spray is used frequently.

n Installation under high-humidity atmosphere

In some cases including the rainy season, especially inside of the ceiling may become high-humidity atmosphere (dew-point temperature: 23°C or higher).

1. Installation to inside of the ceiling with tiles on the roof

2. Installation to inside of the ceiling with slated roof

3. Installation to a place where inside of the ceiling is used for pathway to intake the fresh air

• In the above cases, additionally attach the heat insulator to all positions of the air conditioner, which come to contact with the high-humidity atmosphere. In this case, arrange the side plate (Check port) so that it is easily removed.

• Apply also a sufficient heat insulation to the duct and connecting part of the duct.

n Installation space (Unit: mm)

Reserve space required for maintenance the indoor unit and service work.

200 or more Servicing space

Concealed duct

high static

pressure

Check port with carrying in port 600 × 600

Air flow direction

Duct hose

Concealed duct high static pressure

Air outlet chamber Air inlet chamber

1000 or more

Air flow direction

Filter chamber

Duct hose

[Reference] Condensation test conditions

Indoor side: 27°C dry bulb temperature

Air volume: Low air volume, operation time 4 hours

24°C wet bulb temperature

REQUIREMENT

1. Attach the optional accessories (drain-up kit etc.) on the unit before installing the unit. Also, set the check port with carrying in port to the side surface of the unit except air inlet panel.

2. Prepare the check port with carrying in port hole with the size of 600x600mm.

n Filter cleaning sign term setting

The lighting term setup of the filter sign (Notification of filter cleaning) of the remote controller can be changed according to the condition of installation. For setup method, refer to “Filter sign setting” and “To secure better effect of heating” in the Applicable controls of this Manual.

– 9 – – 10 –

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4 INSTALLATION

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 wor k to guard against strong wind or earthquake.

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

REQUIREMENT

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

• Do not put a heavy article on the indoor unit. (Even units are packaged)

• Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, be sure to use buffering cloth, etc. to not damage the unit.

• To move the indoor unit, hold the hooking metals (4 positions) only. Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, or resin parts, etc.).

• Hanging bolt pitch of air inlet chamber side is different (centre position), make sure not to make mistake to install the setting direction.

• Carry the package by two or more persons, and do not bundle it with plastic band at positions other than specified.

n External Dimensions (Unit: mm)

– 87 –

1380

1260 (Hanging bolt pitch)

4-M10 hanging bolt (Local procure)

Refrigerant pipe connecting port (Gas side Ø22.2 Brazed)

1288 (Hanging bolt pitch)

Drain pipe

connecting port

1328

Electrical control box

Refrigerant pipe connecting port (Liquid side Ø12.7 Flared)

1250

200 150

624

698

100

470

n Installation of hanging bolt

• Consider the piping/wiring after the unit is hung when determining the location of the indoor unit installation and orientation.

• After the location of the indoor unit installation has been determined, install hanging bolts.

• For the dimensions of the hanging bolt pitches, refer to the external view.

• When a ceiling already exists, lay the drain pipe, refrigerant pipe, system interconnection wires, and remote controller wires to their connection locations before hanging the indoor unit.

Procure hanging bolts washer and nuts for installing the indoor unit (these are not supplied).

Hanging bolt

Nut

Washer

M10 or W3/8

M10

Installation of hanging bolt

Use M10 hanging bolts (4 pcs, to be local procure). Matching to the existing structure, set pitch according to

size in the unit external view as shown below.

New concrete slab

Install the bolts with insert brackets or anchor bolts.

bracket)

Hanging bolt

(Pipe hanging

anchor bolt)

(Blade type

bracket)

Use existing angles or install new support angles.

Use a hole-in anchors, hole-in plugs, or a hole-in bolts.

(Slide type

Steel flame structure

Hanging bolt Support angle

Existing concrete slab

4 pieces

12 pieces

8 pieces

Rubber

Anchor bolt

n Installation of indoor unit

Treatment of ceiling

The ceiling differs according to structure of building. For details, consult your constructor or interior finish

contractor. In the process after the ceiling board has been removed, it

is important to reinforce ceiling foundation (frame) and to keep horizontal level of installed ceiling correctly in order to prevent vibration of ceiling board.

• Attach the nuts and the M10 flat washers to the hanging bolt.

• Put washers at up and down of the hanging bracket of the indoor unit to hang down the indoor unit.

• Using a level vial, check that four sides are horizontal. (Horizontal degree: Within 5mm)

Hanging bolt (W3/8 or M10)

Nut (W3/8 or M10)

• Check that four sides are horizontal using a level vial. (Horizontal degree: Within 5mm)

REQUIREMENT

• Hang the unit in a horizontal position. When unit is hanged to slant, it may cause overflow of

drainage.

• Install the unit within the dimension according to the figure below.

• Using level vial or vinyl hose to confirm whether the unit is hang horizontally.

Front view

0 to 5mm

Set the drain pipe connecting port side within 5mm lower than opposite side.

M10 flat washer

Side view

Water pouring

±5mm

Set the air inlet and air outlet sides are within 5mm with each other.

Vinyl hose

– 11 – – 12 –

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n Diagrams for making connecting flanges (Unit: mm)

The connecting flange (Incl. the fixing screw) is not supplied to the indoor unit. When the connecting flange is necessary, produce them in locally. Drawing figure is as follows. (Material: Galvanized steel plate, thickness of 1.6 mm)

1130

250 250 65250250

– 88 –

394

430

370

12 12

406

2525

344

250 250 65250250

380

2525

1080

10-Ø8 hole

1130

1080

n Duct design

1. In order to prevent short circuits, design the duct installation, so that the intake and discharge openings are not adjacent to each other.

2. The indoor unit does not have a built-in air filter. Make sure to set up the filter chamber etc. and install the air filter (Locally procured).

If no air filter is installed, the heat exchanger will be blocked by dust, which may cause the malfunction of air conditioner or the water leakage.

Air outlet chamber (with heat insulation)

Air outlet port

Flexible duct hanging band

Duct hose (with heat insulation)

Air outlet port Air outlet port

To ground floor From ground floor

connecting flange

Electrical control box

Ceiling

Check port cap

High efficiency filter inserting port

Pre filter inserting port

Indoor unit

Filter chamber

Duct hose

Check port or carrying in port (600 × 600)

Air inlet port connecting flange

Air inlet chamber

12 12

10-Ø8 hole

NOTE

All duct connection between units except outdoor unit must be procured and enforced locally.

– 13 – – 14 –

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Concealed Duct High Static Pressure

5 FAN CHARACTERISTICS

Current value as a criterion, adjust the air volume value to become within the range of the chart below.

<RAV-SM2242 Type>

Installation Manual

Concealed Duct High Static Pressure

<RAV-SM2802 Type>

Installation Manual

– 89 –

7.5

6.5

5.5

Current of fan motor (A)

4.5

300

250

200

150

100

External static pressure (Pa)

Lower limit of air volume

2880 3200 3600 4000

Standard air volume: 3600m³/h

30002800 3400 3800 4200 4400

Air volume (m³/h)

4320

Upper limit of air volume

High static pressure tap (50Hz)

Medium static pressure tap (50Hz)

Low static pressure tap (50Hz)

High static pressure tap (50Hz)

Medium static pressure tap (50Hz)

Low static pressure tap (50Hz)

8.5

7.5

6.5

5.5

Current of fan motor (A)

4.5

350

300

250

200

150

100

External static pressure (Pa)

Lower limit of air volume Upper limit of air volume

Standard air volume: 4200m³/h

34003200 3800 4200 4600 5000 5200

3360 3600 4000 4400 4800

Air volume (m³/h)

High static pressure tap (50Hz)

Medium static pressure tap (50Hz)

Low static pressure tap (50Hz)

High static pressure tap (50Hz)

Medium static pressure tap (50Hz)

Low static pressure tap (50Hz)

5040

REQUIREMENT

Add a air volume damper to the air supply duct, and adjust the air volume in the range from 80% to 120% of the standard air volume.

– 15 – – 16 –

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n Wire connection change of fan motor

This duct is composed of 3 fan motors. To change external static pressure by duct resistance, connect the 3 connectors of the orange lead wires that are

connected to the underside of the fan tap changing terminal block to the same number (F1, F2 or F3) terminal. The wires of the fan motor has been connected to (F2) [External static pressure 137Pa (14mmAq)] as factory default.

Low static pressure (F1)

FM FM FM

Fan motor Fan motor Fan motor

YEL

BLU

ORG

F1F2F3F

4 F1 F2 F3 F4 F1 F2 F3 F4

FAN3

ORG

Standard (Middle) static pressure (F2)

FM FM FM

Fan motor Fan motor Fan motor

– 90 –

YEL

BLU

ORG

F1 F2 F3 F4 F1 F2 F3 F4 F1 F2 F3 F4

FAN3

ORG

High static pressure (F3)

FM FM FM

Fan motor Fan motor Fan motor

YEL

BLU

ORG

YEL

ORG

YEL

BLU

FAN2

BLU

FAN2

BLU

ORG

YEL

BLU

ORG

FAN1

ORG

Fan tap changing terminal block

YEL

BLU

ORG

FAN1

ORG

YEL

BLU

ORG

YEL : Yellow BLU : Blue ORG : Orange

Electrical control box

Control

P.C. board

2P terminal block

4P terminal block

3P terminal block

6 DRAIN PIPING WORK

CAUTION

Following the Installation Manual, perform the drain piping work that water is properly drained, and apply a heat insulation not to cause a dew condensation.

Inappropriate piping work may cause the water leakage in the room and wet of furniture.

REQUIREMENT

• The drain piping flows the natural drainage. Make sure to set the drain piping from the unit with descending slope of 1/50

to 1/100 and do not make up-down or trap in the midway.

• Set the horizontal pulling of the drain pipe to 20m or less. When drain piping is too long, attach the support bracket at

intervals of 1.5m to 2m to avoid the pipe becomes undulant as shown in figure below.

1.5 to 2 m

Descending slop of 1/50 to 1/100

• Be sure to connect the drain pipe to the air conditioner with adhesive to avoid water leakage from the joint portion.

• Condensation may occur on the drain pipes including collective pipes.

All drain pipes must be wrapped with heat insulator to prevent dew condensation. Especially a part where drain pipe is connected to the indoor unit must be firmly insulated with the provided heat insulator.

As long as possible

VP-30

Up-down bend

Trap

F1 F2 F3 F4 F1 F2 F3 F4 F1 F2 F3 F4

ORG

Terminal block No.

FAN3

FAN2

ORG

Fan motor wiring

Yellow

Low static pressure

Blue

Middle static pressure

Orange

High static pressure

FAN1

ORG

External static pressure Pa (mmAq)

69 (7)

137 (14)

196 (20)

Remarks

Factory default

∗ Do not use F4.

NOTE

When the external static pressure is changed, write down the static pressure once change in the wiring diagram of the indoor unit is made.

– 17 – – 18 –

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n Pipe material, size and insulator

The following materials for piping work and insulating process are procured locally.

Pipe material

Insulator

Hard vinyl chloride pipe socket for VP25

Hard vinyl chloride pipe VP25 (Nominal outer diameter Ø32mm)

Foamed polyethylene foam, thickness: 10mm or more

n Connecting drain pipe

REQUIREMENT

• Using adhesive agent for vinyl chloride, connect the hard vinyl chloride pipes certainly so that water does not leak.

• It takes some time to dry and indurate the adhesive agent. (Refer to the manual of adhesive agent.) Do not apply any extra force on the connecting section until the adhesive agent dried.

n Drain up

– 91 –

• When install the drain up kit of optional accessory, read the Installation Manual supplied to a drain up kit.

n Check the draining

Check if the water can flow out properly during the test run. Also, check if no water leakage from the piping connection port.

REQUIREMENT

• Do drain test even if installation of heating season.

• Pour water into the drain pan port of the air inlet port gently using the kettle or hose when duct is not connected to the drain pipe. When duct is connected to the drain pipe, remove the Access plate and perform it.

Access plate

Pour into the drain pan with a hose or other materials.

– 19 – – 20 –

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n Heat insulating process

• After drain check, covering the heat insulator for drain connecting section, wrap the drain pipe with heat insulator (Locally procured) without clearance from the end of the drain pipe connecting port of the indoor unit.

Heat insulation (Locally procured) Thickness 10mm or more

Indoor unit

Drain pipe connecting port

– 92 –

7 REFRIGERANT PIPING AND EVACUATING

n Refrigerant Piping

1. If the outdoor units are to be mounted on a wall, make sure that the supporting platform is sufficiently strong.

The platform should be designed and manufactured to maintain its strength over a long period of time, and sufficient consideration should be given to ensuring that the outdoor unit will not fall.

2. Use general copper pipes with a wall thickness of

0.8 mm for Ø12.7 mm, and with a wall thickness of

1.0 mm for Ø28.6 mm (half hard). Do not use any copper pipes with a wall thickness

less than these thicknesses.

3. Flare nut and flare works are also different 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 be generated.

CAUTION

IMPORTANT 4 POINTS FOR PIPING WORK

1. Remove dust and moisture from the inside of the connecting pipes.

2. Tight connection (between pipes and unit)

3. Evacuate the air in the connecting pipes using VACUUM PUMP.

4. Check the gas leakage. (Connected points)

n Pipe size

Pipe size

Gas side

28.6 mm

Liquid side

12.7 mm

n Liquid side refrigerant pipe

connection

Permissible Piping Length and Height Difference

They vary according to the outdoor unit. For details, refer to the Installation Manual attached to

the outdoor unit.

Flaring

• Cut the pipe with a pipe cutter. Remove burrs completely. Remaining burrs may cause gas leakage.

• Insert a flare nut into the pipe, and flare the pipe. As the flaring sizes of R410A differ from those of

refrigerant R22, the flare tools newly manufactured for R410A are recommended.

However, the conventional tools can be used by adjusting projection margin of the copper pipe.

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

Rigid (Clutch type)

12.7

R410A tool used

R410A

0 to 0.5

Outer dia. of copper pipe

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

Outer dia. of copper pipe

12.7

∗ In case of flaring for R410A with the

conventional flare tool, pull it out approx.

0.5 mm more than that for R22 to adjust to the specified flare size.

The copper pipe gauge is useful for adjusting projection margin size.

Conventional tool used

R410A

1.5 to 2.0

–0.02” (–0.4)

R410A

16.6

– 21 – – 22 –

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Tightening connection

CAUTION

Do not apply excessive torque. Otherwise, the nut may crack depending on the conditions.

Outer dia. of copper pipe

12.7 mm (dia.)

u 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.

– 93 –

Half union Flare nut

Externally threaded side

Use a wrench to secure. Use a torque wrench to tighten.

REQUIREMENT

Tightening with an excessive torque may crack the nut depending on installation conditions.

Tighten the nut within the specified tightening torque.

Tightening torque

50 to 62 (5.0 to 6.2 kgf•m)

(Unit: N•m)

Internally threaded side

n Gas side refrigerant pipe

connection

• Turn up the pipe heat insulator to the unit side.

• Wrap the pipe with wet cloth.

• Remove the cup on the gas side piping by using a brazing machine.

Do not burn the pipe heat insulator.

• Braze the attached joint part to the gas side piping and braze the connection piping to the joint part.

• Turn back the pipe heat insulator and tie up with a banding band.

Turn up pipe heat insulator

Wet cloth

Remove the all brazed part.

CAUTION

Braze all around

Tie up with a banding band.

Remove the cap.

Attached joint part

Connection pipe Locally procured Ø28.6 mm

Brazing

Refrigerant amount to be added

For addition of the refrigerant, add refrigerant “R410A” referring to the attached Installation Manual of outdoor unit.

Be sure to use a scale to charge the refrigerant of specified amount.

REQUIREMENT

• Charging an excessive or too little amount of refrigerant causes a trouble of the compressor.

Be sure to charge the refrigerant of specified amount.

• A personnel who charged the refrigerant should write down the pipe length and the added refrigerant amount in the nameplate attached to the service panel of the outdoor unit.

It is necessary to fix the compressor and refrigeration cycle malfunction.

Open the valve fully

Open the valve of the outdoor unit fully. A 4mm-hexagonal wrench is required for opening the valve. For details, refer to the Installation Manual attached to the

outdoor unit.

Gas leak check

Check with a leak detector or soap water whether gas leaks or not, from the pipe connecting section or cap of the valve.

REQUIREMENT

Use a leak detector manufactured exclusively for HFC refrigerant (R410A, R134a, etc.).

Heat insulation process

Apply heat insulation for the pipes separately at liquid side and gas side.

For the heat insulation to the pipes at gas side, be sure to use the material with heat-resisting temperature 120°C or higher.

Using the attached heat insulation material, apply the heat insulation to the pipe connecting section of the indoor unit securely without gap.

REQUIREMENT

• Apply the heat insulation to the pipe connecting section of the indoor unit securely up to the root without exposure of the pipe. (The pipe exposed to the outside causes water leak.)

• Wrap heat insulator with its slits facing up (ceiling side).

Indoor unit

Union

Heat insulation (Accessory)

Flare nut

Heat insulator of the pipe

Piping with outdoor unit

• For details of installation, refer to the Installation Manual of the outdoor unit.

n Evacuation

Using a vacuum pump, perform vacuuming from the charge port of valve of the outdoor unit.

For details, follow to the Installation Manual attached to the outdoor unit.

• Never use the refrigerant sealed in the outdoor unit for evacuation.

REQUIREMENT

For the tools such as charge hose, etc., use those manufactured exclusively for R410A.

– 23 – – 24 –

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8 ELECTRICAL CONNECTION

WARNING

1. Using the specified wires, ensure to connect the wires, and fix wires securely so that the external tension to the wires do not affect the connecting part of the terminals.

Incomplete connection or fixation may cause a fire, etc.

2. Be sure to connect earth wire. (grounding work)

Incomplete grounding cause an electric shock. Do not connect ground wires to gas pipes, water pipes,

lightning rods or ground wires for telephone wires.

3. Appliance 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.

CAUTION

• If incorrect/incomplete wiring is carried out, it will cause

an electrical fire or smoke.

– 94 –

• Be sure to install an earth leakage breaker that is not

tripped by shock waves. If an earth leakage breaker is not installed, an electric

shock may be caused.

• Be sure to use the cord clamps attached to the product.

• Do not damage or scratch the conductive core and inner

insulator of power and inter-connecting wires when peeling them.

• Use the power cord and Inter-connecting wire of

specified thickness, type, and protective devices required.

REQUIREMENT

• For power supply wiring, strictly conform to the Local

Regulation in each country.

• Power supply for indoor unit must be exclusive and

separated from the one for outdoor unit.

• For wiring of power supply of the outdoor units, follow

the Installation Manual of each outdoor unit.

• Never connect 220–240V power to the terminal blocks

( A , B , etc.) for control wiring. (Otherwise, the system will fail.)

• Perform the electric wiring so that it does not come to

contact with the high-temperature part of the pipe. The coating may melt resulting in an accident.

• After connecting wires to the terminal blocks, provide a

trap and fix wires with the cord clamp.

• Run the refrigerant piping line and control wiring line in

the same line.

• Do not turn on the power of the indoor unit until

vacuuming of the refrigerant pipes completes.

– 25 – – 26 –

Remote controller wiring

2-core non polarity wire is used for the remote controller wiring.

Wiring

1. Figure below shows the wiring connections indoor power line and between the indoor and outdoor units and between the indoor units and remote controller.

The wires indicated by the dash lines are provided at the installation place.

2. Insulate the unsheathed redundant cords (conductors) with electrical insulation tape.

Process them so that they do not touch any electrical or metal parts.

n Wiring diagram

Outdoor Input power 380-415V 3N~, 50 Hz

Indoor Fan Input power 220-240V~, 50 Hz

Circuit breaker

(Leakage breaker)

Circuit breaker

(Leakage breaker)

1 2 3

A B

Outdoor

unit

Indoor

unit

Wired remote controlle

n Power and Wiring Specification

Indoor fan Power supply

Maximum running current

Fuse rating

Indoor fan power supply wire∗

System interconnecting wires∗

∗ Number of wire × wire size

220-240V~, 50 Hz

15A

25A

3 × 2.5mm² or more

(H07 RN-F or 60245 IEC 66)

4 × 1.5mm² or more

(H07 RN-F or 60245 IEC 66)

n Wire connection

REQUIREMENT

• Be sure to connect the wires matching the terminal numbers. Incorrect connection causes a trouble.

• Be sure to pass the wires through the bushing of wire connection holes of the indoor unit.

• Keep a margin (Approx. 100mm) on a wire to hang down the electrical control box at servicing, etc.

• The low-voltage circuit is provided for the remote controller. (Do not connect the high-voltage circuit)

1. Remove the cover of the electrical control box by taking off the mounting screws (2 positions)

2. Tighten the screws of the terminal block, and fix the wires with cord attached to the electrical control box. (Do not apply tension to the connecting section of the terminal block.)

3. Mount the cover of the electrical control box without pinching wires.

Electrical control

Indoor fan power supply Terminal block

Bushing

Indoor fan power supply wire

System interconnecting wire

System interconnecting Terminal block

Cord clamp

Wired remote controller connecting Terminal block

Wired remote controller wire

Fixing screw

box cover

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Group control

S (N)

R (L)

Indoor fan power supply wire

1030

321

(Unit: mm)

A B A B

Indoor Unit Indoor Unit

Outdoor Unit Outdoor Unit

– 95 –

System interconnecting wire

n Remote Controller Wiring

• Strip off approx. 9mm the wire to be connected.

• Non polarity, 2 core wire is used for wiring of the remote controller. (0.5mm² to 2.0mm² wires)

Wiring diagram

Terminal block for remote controller wiring of indoor unit

A B

Remote controller wire (Locally procured)

Terminal block

Wired remote controller

Remote controller unit

9 APPLICABLE CONTROLS

REQUIREMENT

• When you use this air conditioner for the first time, it takes

approx. 5 minutes until the remote controller becomes available after power-on. This is normal.

It takes approx. 5 minutes until the remote controller becomes available.

Power on

“SETTING”

flashes

Approx. 5 minutes

“SETTING”

goes out

Remote

controller

is available

It takes approx. 1 minute until the remote controller becomes available.

Power on

• Normal settings were made when the indoor unit was

shipped from factory. Change the indoor unit settings as required.

• Use the wired remote controller to change the settings.

* The settings cannot be changed using the wireless

remote controller, sub remote controller, or remote controller-less system (for central remote controller only).

Therefore, install the wired remote controller to change the settings.

“SETTING”

flashes

Approx. 1 minute

“SETTING”

goes out

Remote

controller

is available

n Changing of setting applicable

control

Basic procedure for changing settings

Change the settings while the air conditioner is not working. (Be sure to stop the air conditioner before making settings.)

Procedure 1

Push button and TEMP. button simultaneously for at least 4 seconds.

After a while, the display flashes as shown in the figure. Confirm that the CODE No. is [01].

• If the CODE No. is not [01], push display content, and repeat the procedure from the beginning. (No operation of the remote controller is accepted for a while after

Procedure 2

Each time you push button, indoor unit numbers in the control group change cyclically.

Select the indoor unit you want to change settings for. The fan of the selected unit runs. You can confirm the indoor unit for which you want to

change settings.

Procedure 3

Using TEMP. / buttons, specify CODE No.

[

✻✻

Procedure 4

Using TIME / buttons, select SET DATA [

✻✻✻✻

Procedure 5

Push button. When the display changes from flashing to lit, the setup is completed.

• To change settings of another indoor unit, repeat from

Procedure

• To change other settings of the selected indoor unit, repeat from Procedure

Use To make settings after

from Procedure

button is pushed.)

(∗ Display content varies with the indoor unit model.)

button to clear the settings.

button was pushed, repeat

button to erase the

– 27 – – 28 –

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Procedure 6

When settings have been completed, push button to determine the settings.

button is pushed, “SETTING” flashes and then

When the display content disappears and the air conditioner enters the normal stop mode. (While “SETTING” is flashing, no operation of the remote controller is accepted.)

n Filter sign setting

According to the installation condition, the filter sign term (Notification of filter cleaning) can be changed.

Follow to the basic operation procedure

→

2 → 3 → 4 → 5 → 6 ).

(

• For the CODE No. in Procedure

• For the [SET DATA] in Procedure

DATA of filter sign term from the following table.

SET DATA

– 96 –

0000

0001

0002

0003

0004

3, specify [01].

4, select the SET

Filter sign term

None

150H

2500H (Factory default)

5000H

10000H

n 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 heat air near the ceiling.

Follow to the basic operation procedure

→

2 → 3 → 4 → 5 → 6 ).

(

• For the CODE No. in Procedure

• For the set data in Procedure

shift value of detection temperature to be set up from the table below.

SET DATA

0000

0001

0002

0003

0004

0005

0006

Detection temperature shift value

3, specify [06].

4, select the SET DATA of

No shift

+1°C

+2°C (Factory default)

+3°C

+4°C

+5°C

+6°C

n Power saving mode

1. Push button for at least four seconds when the air conditioner is not working.

flashes.

Indicates CODE No. “C2.”

2. Select an indoor unit to be set by pushing (left side of the button).

Each time you push the button, unit numbers change as follows:

UNIT No.

1-1

The fan of the selected unit runs.

3. Adjust the power save setting by pushing

4. Determine the setting by pushing button.

5. Push

/ buttons.

TIME Each push of the button changes the power level by 1%

within the range from 100% to 50%. ∗ The factory default is 75%.

button to complete the setting.

UNIT No.

1-2

UNIT No.

1-4

Setting of power level in power saving mode

UNIT No.

1-3

n Remote controller switch monitoring function

This function is available to call the service monitor mode from the remote controller during a test run to acquire temperatures of sensors of the remote controller, indoor unit, and outdoor unit.

1. Push and buttons simultaneously for at least 4 seconds to call the service monitor mode. The service monitor indicator lights up and the header indoor unit number is displayed first. CODE No.

2. Pushing TEMP. (See the following table.)

3. Pushing The sensor temperatures of indoor units and their outdoor unit in the control group are displayed.

4. Push

CODE No. Data name

 is also displayed.

/ buttons, select the number of sensor, etc. (CODE No.) to be monitored.

(left side of the button), select an indoor unit to be monitored.

button to return to the normal display.

Indoor unit data

01 Room temperature (remote controller)

02 Indoor unit intake air temperature (TA)

Indoor unit heat exchanger (coil)

temperature (TCJ)

Indoor unit heat exchanger (coil)

temperature (TC)

Indoor unit fan cumulative operating hours

(× 1 h)

Outdoor unit data

CODE No. Data name

61 Outside air temperature (TO)

62 Compressor discharge temperature (TD)

63 Compressor suction temperature (TS)

64 —

65 Heatsink temperature (THS)

6A Operating current (× 1/10)

Outdoor unit heat exchanger (coil)

temperature (TE)

Compressor cumulative operating hours

(× 100)

– 29 – – 30 –

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n Group control

Group control for system of multiple units

One remote controller can control up to 8 indoor units as a group.

t Group control in single system

Outdoor unit Outdoor unit Outdoor unit Outdoor unit Outdoor unit

Indoor unit

Remote controller

• For wiring procedure and wiring method of the individual line (Identical refrigerant line) system, refer to “ELECTRICAL CONNECTION”.

• Wiring between lines is performed in the following procedure. Connect the terminal block (A/B) of the indoor unit connected with a remote controller to the terminal blocks (A/B) of

the indoor units of other indoor units by wiring the inter-unit wire of the remote controller.

– 97 –

• When the power supply has been turned on, the automatic address setup starts and which indicates that address is being set up flashes on the display part.

During setup of automatic address, the remote controller operation is not accepted.

Required time up to the finish of automatic addressing is approx. 5 minutes.

NOTE

In some cases, it is necessary to change the address manually after setup of the automatic address according to the system configuration of the group control.

Indoor unit Indoor unit

Finish of address setup by power-ON

Indoor unit Indoor unit

(Max. 8 units)

Procedure example 1

Manual address setup procedure

While the operation stops, change the setup. (Be sure to stop the operation of the unit.)

-2,

-2

2,61

Procedure 1

Push simultaneously + + buttons for 4 seconds or more.

After a while, the display part flashes as shown below. Check the displayed CODE No. is [10].

• When the CODE No. is other than [10], push

to erase the display and repeat procedure from the first step. (After pushing controller is not accepted for approx. 1 minute.) (For a group control, No. of the firstly displayed indoor unit becomes the header unit.)

(∗ Display changes according to the model No. of indoor unit.)

button, operation of the remote

3 4 5 6

4 5

-1,

-3,

button

Procedure 3

1. Using TEMP. / buttons, specify CODE No.

[12]. (CODE No. [12]: Line address)

2. Using TIME

from [3] to [2].

3. Push In this time, the setup finishes when the display

changes from flashing to lighting.

Indoor unit No. before setup change is displayed.

/ buttons, change the line address

button.

Procedure 4

1. Using TEMP. / buttons, specify CODE No. [13]. (CODE No. [13]: Indoor address)

2. Using TIME address from [3] to [2].

3. Push In this time, the setup finishes when the display

changes from flashing to lighting.

Indoor unit No. before setup change is displayed.

/ buttons, change the indoor

button.

Procedure 2

Every pushing button, the indoor UNIT No. in the group control is displayed in order. Select the indoor unit of which setup is changed.

In this time, the position of the indoor unit of which setup is changed can be confirmed because fan of the selected indoor unit operate.

– 31 – – 32 –

Procedure 5

1. Using TEMP. / buttons, specify CODE No. [14]. (CODE No. [14]: Group address)

2. Using TIME from [0001] to [0002]. (SET DATA [Header unit: 0001] [Follower unit: 0002])

3. Push In this time, the setup finishes when the display

changes from flashing to lighting.

Indoor unit No. before setup change is displayed.

/ buttons, change the SET DATA

button.

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Procedure 6

If there is other indoor unit to be changed, repeat procedure

When the above setup has finished, push the indoor UNIT No. before change of setup, specify CODE No. [12], [13], [14] in order with TEMP. and then check the changed contents.

Address change check Before change: [3-3-1] → After change: [2-2-2]

Pushing changed. (In this case, procedure from

2 to 5 to change the setup.

button clears the contents of which setup was

Indoor unit No. before setup change is displayed.

– 98 –

Procedure 7

After check of the changed contents, push button. (Setup is determined.)

When pushing status becomes the usual stop status. (When pushing controller is not accepted for approx. 1 minute.)

∗ If the operation from the remote controller is not

accepted even 1 minute or more passed after pushing

button, it is considered that the address setup is

incorrect. In this case, the automatic address must be again set

up. Therefore repeat procedure of the setup change from

the Procedure

button, the display disappears and the

button the operation from the remote

to select

/ buttons,

2 is repeated.)

To recognize the position of the corresponding indoor unit though the indoor UNIT No. is known

Check the position during operation stop. (Be sure to stop operation of the set.)

1,3

Procedure 1

Push simultaneously + buttons for 4 seconds or more. After a while, the display part flashes and the display appears as shown below.

In this time, the position can be checked because fan of the indoor unit operate.

• For the group control, the indoor UNIT No. is displayed ] and fans of all the indoor units in the group

as [ control operate.

Check the displayed CODE No. is [01].

• When the CODE No. is other than [01], push

to erase the display and repeat procedure from the first step. (After pushing controller is not accepted for approx. 1 minute.)

(∗ Display changes according to the model No. of indoor unit.)

Procedure 2

In the group control, every pushing button, the indoor UNIT No. in the group control is displayed in order.

In this time, the position of the indoor unit can be confirmed because only fan of the selected indoor unit operate. (For a group control, No. of the firstly displayed indoor unit becomes the header unit.)

Procedure 3

After confirmation, push button to return the mode to the usual mode.

When pushing status becomes the usual stop status. (When pushing controller is not accepted for approx. 1 minute.)

button, operation of the remote

button, the display disappears and the

button the operation from the remote

button

n 8°C Operation

Pre-heating operation can be set for cold regions where room temperature drops to below zero.

Procedure 1

Push simultaneously + + buttons for 4 seconds or more when the air conditioner is not working.

After a while, the display part flashes as shown below. Check the Displayed CODE No. is [10].

• When the CODE No. is other than [10], push

to erase the display and repeat procedure from the first step. (After pushing controller is not accepted for approx. 1 minute.)

(∗ Display changes according to the model No. of indoor unit.)

button, operation of the remote

Procedure 2

Every pushing button, the indoor unit No. in the group control is displayed in order.

Select the indoor unit of which setup is changed. In this time, the position of the indoor unit of which setup is

changed can be confirmed because fan of the selected indoor unit operate.

Procedure 3

Using TEMP. / buttons, specify CODE No. [d1].

Procedure 4

Using TIME / buttons, select SET DATA [0001].

SET DATA

0000

0001

8°C Operation setting

None (Factory default)

8°C Operation setting

Procedure 5

Push button. In this time, the setup finishes when the display changes

from flashing to lighting.

Procedure 6

Push button. (Setup is determined.) When pushing

status Becomes the usual stop status.

(When pushing controller is not accepted for approx. 1 minute.)

button, the display disappears and the

button the operation from the remote

button

– 33 – – 34 –

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10 TEST RUN

n Before test run

• Before turning on the power supply, carry out the following procedure.

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

more exists between the terminal block 1 to 3 and the earth (grounding).

If resistance of less than 1MΩ is detected, do not run the unit.

2) Check the valve of the outdoor unit being opened

fully.

• To protect the compressor at activation time, leave power-ON for 12 hours or more before operating.

n 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 thermostat-OFF.

In order to prevent a serial operation, the forced test run is

– 99 –

released after 60 minutes have passed and returns to the usual operation.

CAUTION

• Do not use the forced test run for cases other than the test run because it applies an excessive load to the devices.

1,5

2, 4 3

Procedure 1

Keep button pushed for 4 seconds or more. [TEST] is displayed on the display part and the selection of

mode in the test mode is permitted.

Procedure 2

Push button.

Procedure 3

Using button, select the operation mode, [Cool] or [Heat].

• Do not run the air conditioner in a mode other than [Cool] or [Heat].

• The temperature controlling function does not work during test run.

• The detection of error is performed as usual.

Procedure 4

After the test run, push button to stop a test run. (Display part is same as procedure 1.)

Procedure 5

Push check button to cancel (release from) the test run mode. ([TEST] disappears on the display and the status returns to a normal.)

11 MAINTENANCE

CAUTION

When connecting a return air duct to the unit, the cleaning method of the air filter differs according to the construction of duct end. Ask a qualified installer or qualified service person.

Cleaning of air filter

1. If is displayed on the remote controller, contact to qualified installer or qualified service person.

2. Take out the air filter.

• Push the extrusion of the air filter to inside and pull out it to

take out the air filter.

3. Cleaning with water or vacuum cleaner

• If dirt is heavy, clean the air filter by tepid water with neutral

detergent or water.

• After cleaning with water, dry the air filter sufficiently in a

shade place.

4. Mount the air filter.

5. After cleaning, push

display disappears.

CAUTION

• Do not start the air conditioner while leaving air filter removed.

• Push the filter reset button. ( indication will be turn off.)

PERIODIC MAINTENANCE

• For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner in use

be cleaned and maintained regularly to ensure efficient operation of the air conditioner. When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended. Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof treatment, if

necessary. As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor unit at least

compressor failure.

• When a drain pump kit (sold separately) is installed.

If it is used in a place full of dust or oil mist, the pump will be clogged and proper drainage is disabled. Clean the drain pump periodically. For how to clean the drain pump, contact the dealer.

1,2

– 35 – – 36 –

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Maintenance List

Heat exchanger

Fan motor

Filter

Fan

Air inlet/outlet grilles

Drain pan

Ornamental panel, louvres

Exterior

– 100 –

Part

Unit

Indoor/outdoor

Indoor

Indoor/outdoor

Indoor

Outdoor

Check (visual/auditory)

• Dust/dir t clogging, scratches

• Sound

• Dust/dir t, breakage

• Vibration, balance

• Dust/dir t, appearance

• Dust/dir t, scratches

• Dust/dir t clogging, drain contamination

• Dust/dir t, scratches

• Rust, peeling of insulator

• Peeling/lift of coat

Maintenance

• Wash the heat exchanger when it is clogged.

•

Take appropriate measures when abnormal sound is generated.

• Wash the filter with water when it is contaminated.

• Replace it when it is damaged.

• Replace the fan when vibration or balance is terrible.

• Br ush or wash the fan when it is contaminated.

• Fix or replace them when they are deformed or damaged.

• Clean the drain pan and check the downward slope for smooth drainage.

• Wash them when they are contaminated or apply repair coating.

• Apply repair coating.

12 TROUBLESHOOTING

n Confirmation and check

When an error occurred in the air conditioner, an error code and indoor UNIT No. appear on the display part of the remote controller.

The error 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.

Error code Indoor UNIT No. in

which an error occurred

n Confirmation of error log

When an error occurred on the air conditioner, the error log can be confirmed with the following procedure. (The error history is stored in memory up to 4 errors.)

The log can be confirmed from both operating status and stop status.

Procedure 1

When pushing and buttons at the same time for 4 seconds or more, the following display appears.

•[01: Order of error log] is displayed in CODE No..

• [Error code] is displayed in CHECK.

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

is displayed, the mode enters in the error log mode.

displayed in Unit No..

– 37 – – 38 –

Procedure 2

Every pushing of button used to set temperature, the error log stored in memory is displayed in order.

The numbers in CODE No. indicate CODE No. [01] (latest)

→ [04] (oldest).

REQUIREMENT

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

Procedure 3

After confirmation, push button to return to the usual display.

Toshiba RAV-SM2242DT-TR, RAV-SM2802DT-TR, RAV-SM2802DT-E User Manual

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User Manual