TOSHIBA RAV-SM 404MUT-E, 454MUT-E, 564MUT-E air conditioner Installation Manual

+00EH99878199_01EN.book Page 1 Saturday, April 2, 2011 3:53 PM

AIR CONDITIONER (SPLIT TYPE)

Installation Manual

Indoor Unit

Model name:

Compact 4-way Cassette type

RAV-SM404MUT-E

RAV-SM454MUT-E

RAV-SM564MUT-E

Installation Manual

English


Compact 4-way Cassette Type

Original instruction

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

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

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

ADOPTION OF NEW REFRIGERANT

This Air Conditioner uses R410A an environmentally friendly refrigerant.

Contents


– 1 –


1 Precautions for Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Accessory Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Selection of Installation Place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Drain Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6 Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8 Applicable Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

9 Test Run. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21


Thank you for purchasing this Toshiba air conditioner.

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

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

After completing the installation work, hand over this Installation Manual as well as the Owner’s Manual provided to the user, and ask the user to keep them in a safe place for future reference.

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 following table.

Agent

Qualified installer

Qualified service person

Qualifications and knowledge which the agent must have

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

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

• The qualified installer who is allowed to do the refrigerant handling and piping work involved in installation, relocation and removal has the qualifications pertaining to this refrigerant handling and piping work as stipulated by the local laws and regulations, and he or she is a person who has been trained in matters relating to refrigerant handling and piping work on the air conditioners made by

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

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

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

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

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

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

1-EN 2-EN




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 following table.

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 Protective gear worn

All types of work

Electrical-related work

Protective gloves

‘Safety’ working clothing

Gloves to provide protection for electricians and from heat

Insulating shoes

Clothing to provide protection from electric shock

Work done at heights

(50 cm or more)

Helmets for use in industry

Transportation of heavy objects

Shoes with additional protective toe cap

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



Warning indications on the air conditioner unit

Warning indication Description

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect all remote electric power supplies before servicing.

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.

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

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

Do not touch the aluminium fins of the unit.

Doing so may result in injury.

CAUTION

BURST HAZARD

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

CAUTION

BURST HAZARD

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

3-EN

– 2 –

EN

4-EN


5-EN




– 3 –


1

Precautions for Safety

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

WARNING

General

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

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

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

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

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

• Before carrying out the installation, maintenance, repair or removal work, 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 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 work is performed at heights, use a ladder which complies with the ISO 14122 standard, and follow the procedure in the ladder’s instructions. Also wear a helmet for use in industry as protective gear to undertake the work.

• Before 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.

• Before working at heights, put a sign in place so that no-one will approach the work location, before proceeding with the work. Parts and other objects may fall from above, possibly injuring a person below. While carrying out the work, wear a helmet for protection from falling objects.

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

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

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

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

Selection of installation location

• When the air conditioner is installed in a small room, provide appropriate measures to ensure that the concentration of refrigerant leakage occur in the room does not exceed the critical level.

• Do not install in a location where flammable gas leaks are possible. If the gas leak and accumulate around the unit, it may ignite and cause a fire.

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

• To transport the air conditioner, do not take hold of the bands around the packing carton. You may injure 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 securely in a location where the base can sustain the weight adequately. 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 or other trouble.

• Carry out the specified installation work to guard against the possibility of high winds and earthquake. If the air conditioner is not installed appropriately, a unit may topple over or fall down, causing an accident.

• If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.

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

Refrigerant piping

• Install the refrigerant pipe securely during the installation work before operating the air conditioner. If the compressor is operated with the valve open and without refrigerant pipe, the compressor sucks air and the refrigeration cycles is over pressurized, which may cause a injury.

• 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.

Electrical wiring

• Only a qualified installer(*1) or qualified service person(*1) is allowed to carry out the electrical work of the air conditioner. Under no circumstances must this work be done by an unqualified individual since failure to carry out the work properly may result in electric shocks and / or electrical leaks.

• To connect the electrical wires, repair the electrical parts or undertake 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.

• Connect earth wire. (Grounding work)

Incomplete grounding causes an electric shock.

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

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

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

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

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

• Under no circumstances the power wire must not be extended. Connection trouble in the places where the wire is extended may give rise to smoking and / or a fire.

• Electrical wiring work shall be conducted according to law and regulation in the community and installation manual.

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

Test run

• Before operating the air conditioner after having completed the work, check that the electrical parts box cover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON position. You may receive an electric shock if the power is turned on without first conducting these checks.

• If there is any kind of trouble (such as an error display has appeared, smell of burning, abnormal sounds, the air conditioner fails to cool or heat or water is leaking) has occurred in the air conditioner, do not touch the air conditioner yourself but set the circuit breaker to the OFF position, and contact a qualified service person. Take steps to ensure that the power will not be turned on (by marking “out of service” near the circuit breaker, for instance) until qualified service person arrives. Continuing to use the air conditioner in the trouble status may cause mechanical problems to escalate or result in electric shocks or other trouble.

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

Ω 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 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.

6-EN




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 or other gas to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in rupture, injury or other trouble.

CAUTION

New Refrigerant Air Conditioner Installation

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

OZONE LAYER.

• The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed. Therefore, do not let water, dust, former refrigerant, or refrigerating oil enter the refrigerating cycle during installation work.

• 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 (all types can be used) must be used for the power supply line of this conditioner.

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



2

Accessory Parts

Part name Q’ty Shape

Installation Manual 1 This manual

Owner’s Manual

CD-ROM

Heat insulating pipe

Installation pattern

Installation gauge

Pattern fixing screw

Heat insulator

1

2

4

1

2

1

1

—

—

M5 × 16L

Usage

(Hand over to customers)

(For other languages that do not appear in this Installation Manual, please refer to the enclosed CD-R.)

(Hand over to customers)

(For other languages that do not appear in this Installation Manual, please refer to the enclosed CD-R.)

Owner’s Manual and Installation Manual

For heat insulation of the pipe connecting section

For checking of ceiling opening and the main unit position

For positioning of the ceiling position

(To be used with the installation pattern)

For attach the installation pattern

For heat insulation of drain connecting section

Washer

Hose band

Flexible hose

Heat insulator A

8

1

1

1

For hanging unit

For connecting drain pipe

For adjusting core-out of drain pipe

For sealing of wire connecting port

Heat insulator B 1 For sealing of wire connecting port

Separate sold parts

The Ceiling panel and remote controller are sold separately. For the installation of these products, follow the

Installation Manuals supplied with them.

EN

8-EN 7-EN

– 4 –


1000 or more 1000 or more




– 5 –


3

Selection of Installation Place

WARNING

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

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

• Install the air conditioner at a height 2.5 m or more from the floor.

If you insert your hands or others directly into the unit while the air conditioner operates, it is dangerous because you may contact with revolving fan or active electricity.

Installation space

Ensure there is sufficient space to install the unit and to perform maintenance work as and when required. Keep

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

unit: mm

CAUTION

• Do not install in a location where flammable gas may leaks are possible.

If the gas leak and accumulate around the unit, it may ignite and cause a fire.

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).

(The unit should 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 (turbo 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 the outdoor unit is installed on the boundary with the neighbour, pay due attention to the level of noise.)

• Place with poor ventilation. (Before air duct work, check whether value of fan speed, static pressure and duct resistance are correct.)

• 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.)

• 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.

(A malfunction of the air conditioner, abnormal control, or problems due to noise to such appliances / equipment may occur.)

• When the wireless remote control is used in a room equipped with an inverter-type fluorescent light or at a place exposed to direct sunlight, signals from the remote control may not be received correctly.

• Place where organic solvent is used.

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

• Place where special spray is used frequently.

Obstacle

Selection of installation place

Continual operation of the indoor unit under high-humidity conditions as described below, dew may condense and water may drop.

Especially, high-humidity atmosphere (dew point temperature: 23 °C or more) may generate dew inside the ceiling.

1. Unit is installed inside the ceiling with slated roof.

2. Unit is installed at a location using inside of the ceiling as fresh air take-in path.

3. Kitchen

Advice

• Set a service check opening panel at right side of the unit (size: 450 × 450 mm or more) for piping, maintenance, and servicing.

• If installing a unit at such place, put insulating material (such as glass wool) additionally on all the positions of the indoor unit which come to contact with high-humidity atmosphere.

REQUIREMENT

When the humidity inside the ceiling seems to be higher than 80 %, attach a heat insulator to the side (top) surface of the indoor unit. (Use a heat insulator that is 10 mm or more thick.)

9-EN 10-EN




Ceiling height

Unit : m

Installable ceiling height

Up to 3.5 m

When the height of the ceiling exceeds the distance of the item Standard / 4-way in below table, the warm air is difficult to reach the floor.

It is necessary to change the setup value of the high ceiling setting or discharge direction.

▼ Height list of ceiling possible to be installed

Indoor unit Capacity type

Discharge direction

Standard (At shipment)

High ceiling (2)

High ceiling (3)

SM40, 45 type

4-way

2.9 m

3.2 m

3.5 m

SM56 type

4-way

3.2 m

3.4 m

3.5 m

Unit : m

Setup of high ceiling

Setup data

0000

0002

0003

REQUIREMENT

When high ceiling (2) or (3) is used with 4-way blowing, a draft is easily recognized due to drop of discharge temperature.

The lighting time of the filter sign (notification of filter cleaning) on the remote control can be changed according to installation conditions.

When it is difficult to obtain satisfactory heating due to location place of the indoor unit or the structure of the room, the detection temperature of heating can be raised.

Refer to “8. Applicable Controls” in this manual for the setting procedure.



4

Installation

WARNING

The installation of the air conditioning unit must be positioned in a location that can sufficiently support its weight and give protection against adverse environmental conditions.

Failure to do so may result in unit damage and possible human injury.

Any incomplete installation may also cause possible risk of human injury.

• Unpack the package, take out the product and then place it on the floor so that the same surface directs underneath as it is placed in the package.

OK NO GOOD

If the both sides are turned over, a deformation of mounting metal of the ceiling panel which is sold separately may be caused.

Accordingly the product may be damaged and the installation becomes impossible in some cases.

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, use buffering cloth or other soft cloth 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).

• Carry the package by two or more persons, and do not bundle it with plastic band at positions other than specified.

11-EN

– 6 –

CAUTION

Do not tear off the tape adhered to the cabinet; otherwise vibration is caused from the cabinet.

EN

12-EN


13-EN


External view

1000 or more

595 to 660 Ceiling open dimension

Obstacle

1000 or more

Space required for installation and servicing

142 64 368.5

145.5

93

Knockout for fresh air intake Ø100

Bottom face of ceiling

700 Panel external dimension

595 to 660 Ceiling open dimension

525 Hanging bolt pitch

105 70

Drain discharge port

Hanging bolt

M10 or W3/8 local arrange

Check port

(Ø450)

200

Check port

(Ø450)

Check port

(Ø450)

Ø162


– 7 –


Unit: mm

268

220.5

145.5

134

63

27


Ceiling panel


Opening a ceiling and

installation of hanging bolts

• Consider the piping / wiring after the unit is hung to determine the location of the indoor unit installation and orientation.

• After the location of the indoor unit installation has been determined, open the ceiling and install hanging bolts.

• The dimensions of the ceiling opening and hanging bolt pitches are given in the outline drawing and the attached installation pattern.

• When a ceiling already exists, lay the drain pipe, refrigerant pipe, control wires, and remote control wires to their connection locations before hanging the indoor unit.

Procure hanging bolts and nuts for installing the indoor unit (these are not supplied).

Hanging bolt

Nut

M10

M10

4 pieces

12 pieces

Using the installation pattern (accessory)

The installation pattern is provided inside the packaging cap.

<For existing ceiling>

Use the installation pattern positioning a ceiling opening and hanging bolts.

<For new ceiling>

Use the installation pattern to position the ceiling opening when a ceiling is hanged.

• After the hanging bolts have been installed, install the indoor unit.

• To use the supplied pattern attach it to the indoor unit using the supplied fixing screws 5 mm × 16 mm (4 pcs.). (Screw pattern to the ceiling panel hanging brackets of the indoor unit)

• Before hanging a ceiling, open the ceiling along the outside dimensions of the installation pattern.

Indoor unit

Treatment of ceiling

The ceiling differs according to structure of building.

For details, consult your constructor or interior finish contractor.

In the process after the ceiling board has been removed, it is important to reinforce ceiling foundation

(frame) and to keep horizontal level of installed ceiling correctly in order to prevent vibration of ceiling board.

1. Cut and remove the ceiling foundation.

2. Reinforce the cut surface of ceiling foundation, and add ceiling foundation for fixing the end of ceiling board.

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.

(Blade type bracket)

(Slide type bracket)

Rubber

Anchor bolt

(Pipe hanging anchor bolt)

Steel flame structure

Use existing angles or install new support angles.

Hanging bolt

Hanging bolt Support angle

Existing concrete slab

Use a hole-in anchors, hole-in plugs, or a hole-in bolts.

Ø162

For branch duct knockout square hole Ø150

Electrical control box

320.5

575 Unit external dimension


Refrigerant pipe

(Liquid) Ø6.4

For branch duct knockout square hole Ø150

Refrigerant pipe

(Gas) Ø12.7

70 105

55

93

139.5

190.5

Wiring connection port

Installation pattern

(Attached)

Cut off the installation pattern along slit of the main unit.

5 mm × 16 mm screws (Attached)

These screws are exclusive to the installation pattern. When installing the ceiling panel, the other exclusive screws attached to the ceiling panel (sold separately) are used.

14-EN




Installation of ceiling opening and hanging bolt

Hanging bolt

Level

Level guage(levelness: 5 mm or less)

Indoor unit

Hanging bolt

Hanging bracket

(1) 10 - 42 mm

Installation gauge

Ceiling board

Hanging bracket

• Attach a nut (M10: not supplied) and the Ø34 mm washer (supplied) to each hanging bolt.

• Insert a washer on both sides of the T groove of the hanging bracket of the indoor unit, and hang the indoor unit.

• Check that the four sides of the indoor unit are level using a level guage (levelness: 5 mm or less).

• Detach the installation gauge (accessory) from the installation pattern.

• Using the installation gauge, check and adjust the positional relation between the indoor unit and the ceiling opening (1) (10 - 42 mm: 4 sides) and the hanging-up height (2) (23 - 28 mm: 4 corners).

(How to use the installation gauge is printed on the gauge.)

* Procure hanging bolts and nuts locally.

Hanging bolt

M10

Nut

M10

Eccentric washer

(Accessory)

* Install with the marking

“UP” facing up.

Washer (Accessory)

To prevent the bolt from falling off (for safety), set it just under the hanging bracket as shown in the figure.

Nut

M10

Indoor unit

Ceiling board

(1) 10 - 42 mm

(2) 23 - 28 mm

Installation gauge

CAUTION

Before installation of the indoor unit, remove the tape that holds the fan and bell mouth. Running the unit without removing the tape may damage the fan motor.

Installation of ceiling panel

(Sold separately)

Install the ceiling panel according to Installation

Manual attached with it after piping / wiring work has completed.

Check that installation of indoor unit and ceiling opening part is correct, and then install it.

REQUIREMENT

• Joint the connecting sections of ceiling panel, ceiling surface, ceiling panel and indoor unit closely.

Any gap between them will cause air leakage and the generate condensation or water leakage.

• Remove the adjust corner caps at the four corners of the ceiling panel, and then install the ceiling panel onto the indoor unit.


Installation of remote

controller (Sold separately)

For installation of the wired remote controller, follow the

Installation Manual attached with the remote controller.

• Pull out the remote controller cord together with the refrigerant pipe or drain pipe.

Pass the remote controller cord through upper side of the refrigerant pipe and drain pipe.

• Do not leave the remote controller at a place exposed to the direct sunlight and near a stove.

Wireless remote controller

The sensor of indoor unit with wireless remote controller can receive a signal by distance within approx. 8 m. Based upon it, determine a place where the remote controller is operated and the installation place.

• Operate the remote controller, confirm that the indoor unit receives a signal surely, and then install it.

• Keep 1 m or more from the devices such as television, stereo.

(Disturbance of image or noise may generate.)

• To prevent a malfunction, select a place where is not influenced by a fluorescent light or direct sunlight.

• Two or more (Up to 6 units) indoor units with wireless type remote controller can be installed in the same room.

8 m

or le ss

15-EN

– 8 –


EN

16-EN


Drain up

When a down-gradient cannot be secured for the drainpipe, drain-up piping is possible.

• The height of the drain pipe must be 850 mm or less from the bottom of the ceiling.

• Take the drain pipe out of the drain pipe joint with the indoor unit in 300 mm or less, and bend up the pipe vertically.

• Immediately after the pipe is bent up vertically, lay the pipe making a down-gradient.

• Set downward grading immediately after raising up vertically.

300 mm or less




– 9 –


5

Drain Piping

CAUTION

Following the Installation Manual, perform the drain piping work so that water is properly drained, and apply a heat insulation so as not to cause a dew drop.

Inappropriate piping work may result in water leakage in the room and wet of furniture.

Piping / Heat insulating

material

Require the following materials for piping and heat insulating at site.

Piping

Heat insulator

Hard vinyl chloride pipe VP25

(Outer dia.: Ø32 mm)

Foam polyethylene:

Thickness 10 mm or more

Flexible hose

Use the attached flexible hose to adjust centre discrepancy of the hard vinyl chloride pipe or to adjust the angle.

• Do not use the flexible hose as stretched, or do not deform it more extent than that in the following figure.

• Fix the soft end of the flexible hose with the attached hose band.

• Use the flexible hose on a horizontal level.

OK NO GOOD

Max

45°

Max

45°

Riser (Trap)

90° Bend

REQUIREMENT

• Perform heat insulation of the drain pipes of the indoor unit.

• Perform heat insulation of the connecting part with the indoor unit.

An incomplete heat insulation causes dew drop.

• Set the drain pipe with downward slope (1/100 or more), and do not make swelling or trap on the piping.

It may cause an abnormal sound.

• For length of the traversing drain pipe, restrict to 20 m or less.

In case of a long pipe, provide support brackets with interval of 1.5 - 2 m in order to prevent waving.

1.5 - 2 m

Support bracket

Heat insulator

1/100 or more downward

Arched shape

NO

GOOD

Trap

• Set the collective piping as shown in the below figure.

As long as possible (100 mm)

VP25 VP25 VP25

VP30 or more

Downward slope

1/100 or more

• Do not apply force to the connecting part of the drain pipe.

• The hard vinyl-chloride pipe cannot be directly connected to the drain pipe connecting port of the indoor unit.

For connection with the drain pipe connecting port, fix the attached flexible hose with the hose band, otherwise a damage or water leak is caused on the drain pipe connecting port.

Drain pipe connecting port

(Hard socket)

Attached hose band

VP25 vinyl chloride pipe

(To be local procure)

Attached flexible hose

Soft socket

Socket for VP25


Hard socket

Adhesive inhibited:

Use the attached flexible hose and hose band for connecting the drain hose to the clear drain socket.

If applying the adhesive, socket will be damaged and cause water leakage.

Drain pipe connecting port

(Transparent)

Align the attached hose band to the end of hose, set the tightening position upward, and then tighten it.

Flexible hose

(Accessory)

VP25 vinyl chloride pipe (To be local procure)

Socket for VP25 vinyl chloride pipe


Connecting drain pipe

• Connect a hard socket (procured locally) to the hard socket of the attached supplied flexible hose.

• Connect a drain pipe (procured locally) to the connected hard socket.

REQUIREMENT

• Connect hard vinyl chloride pipes securely using an adhesive for vinyl chloride to avoid water leakage.

• It takes some time until the adhesive is dried and hardened (refer to the manual of the adhesive). Do not apply stress to the joint with the drain pipe during this time period.

Indoor unit

Underside of ceiling

Check the draining

In the test run, check that water drain is properly performed and water does not leak from the connecting part of the pipes.

Check draining also when the unit is installed in heating period.

By using a pitcher or hose, pour water (1500 - 2000 cc) into the discharge port before installation of the ceiling panel.

Pour water gradually so that water does not spread on the motor of the drain pump.

CAUTION

Pour water gently so that it does not spread around inside the indoor unit, which may cause a malfunction.

17-EN 18-EN




• Use the tightening torque levels as listed in the following table.

Outer dia. of connecting pipe (mm)

6.4

9.5

12.7

15.9

Tightening torque (N•m)

14 to 18 (1.4 to 1.8 kgf•m)

33 to 42 (3.3 to 4.2 kgf•m)

50 to 62 (5.0 to 6.2 kgf•m)

63 to 77 (6.3 to 7.7 kgf•m)

• 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.

CAUTION

Tightening with an excessive torque may crack the nut depending on installation conditions.

Evacuation

Perform vacuuming from the charge port of valve of the outdoor unit by using a vacuum pump.

For details, follow to the Installation Manual attached to the outdoor unit.

• Do not use the refrigerant sealed in the outdoor unit for evacuation.

REQUIREMENT

For the tools such as charge hose, use those manufactured exclusively for R410A.

Open the valve fully

Open the valve of the outdoor unit fully. A 4 mmhexagonal 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).

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, use the material with heat-resisting temperature 120 °C or higher.

• To use the attached heat insulation pipe, 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

Wrap the pipe with the attached heat insulator without any gap between the indoor unit.

The seam must be faced upward

(ceiling side).

Flare nut

Refrigerant amount to be added

For addition of the refrigerant, add refrigerant “R410A” referring to the attached Installation Manual of outdoor unit.

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.

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 F-GAS label of the outdoor unit. It is necessary to fix the compressor and refrigeration cycle malfunction.

Heat insulation pipe

Union

(Accessory)

Banding band

(locally procured)

Heat insulator of the pipe


– 11 –


7

Electrical Connection

WARNING

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

to the terminals from affecting the terminals.

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

• Connect earth wire. (grounding work)

Incomplete grounding cause an electric shock.

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

• 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

• For power supply specifications, follow the Installation Manual of outdoor unit.

• Do not connect 220 – 240 V power to the terminal blocks ( A , B ) for control wiring.

Otherwise, the system will fail.

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

• 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.

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

Indoor / Outdoor connecting wires specifications

Indoor / Outdoor connecting wires*

*Number of wire x wire size

4 x 1.5 mm

2

or more

(H07 RN-F or 60245 IEC 66)

Remote controller wiring

Up to

70 m

Remote controller wiring, remote controller inter-unit wiring

Wire size: 2 × 0.5 to 2.0 mm

2

Total wire length of remote controller wiring and remote controller inter-unit wiring = L + L1 + L2 + … Ln

In case of wired type only

In case of wireless type included

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

Up to 500 m

Up to 400 m

Up to 200 m

CAUTION

The remote controller wire and Indoor / Outdoor connecting wires cannot be parallel to contact each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise or other factor.

Remote controller wiring

Indoor unit

L

Remote controller

Indoor unit Indoor unit

L1 L2

Remote controller inter-unit wiring

Ln

(Max. 8 units)

Indoor unit

21-EN 22-EN




• Use the tightening torque levels as listed in the following table.

Outer dia. of connecting pipe (mm)

6.4

9.5

12.7

15.9

Tightening torque (N•m)

14 to 18 (1.4 to 1.8 kgf•m)

33 to 42 (3.3 to 4.2 kgf•m)

50 to 62 (5.0 to 6.2 kgf•m)

63 to 77 (6.3 to 7.7 kgf•m)

• 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.

CAUTION

Tightening with an excessive torque may crack the nut depending on installation conditions.

Evacuation

Perform vacuuming from the charge port of valve of the outdoor unit by using a vacuum pump.

For details, follow to the Installation Manual attached to the outdoor unit.

• Do not use the refrigerant sealed in the outdoor unit for evacuation.

REQUIREMENT

For the tools such as charge hose, use those manufactured exclusively for R410A.

Open the valve fully

Open the valve of the outdoor unit fully. A 4 mmhexagonal 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).

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, use the material with heat-resisting temperature 120 °C or higher.

• To use the attached heat insulation pipe, 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

Wrap the pipe with the attached heat insulator without any gap between the indoor unit.

The seam must be faced upward

(ceiling side).

Flare nut

Refrigerant amount to be added

For addition of the refrigerant, add refrigerant “R410A” referring to the attached Installation Manual of outdoor unit.

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.

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 F-GAS label of the outdoor unit. It is necessary to fix the compressor and refrigeration cycle malfunction.

Heat insulation pipe

Union

(Accessory)

Banding band

(locally procured)

Heat insulator of the pipe


– 11 –


7

Electrical Connection

WARNING

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

to the terminals from affecting the terminals.

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

• Connect earth wire. (grounding work)

Incomplete grounding cause an electric shock.

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

• 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

• For power supply specifications, follow the Installation Manual of outdoor unit.

• Do not connect 220 – 240 V power to the terminal blocks ( A , B ) for control wiring.

Otherwise, the system will fail.

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

• 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.

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

Indoor / Outdoor connecting wires specifications

Indoor / Outdoor connecting wires*

*Number of wire x wire size

4 x 1.5 mm

2

or more

(H07 RN-F or 60245 IEC 66)


Up to

70 m

Remote controller wiring, remote controller inter-unit wiring

Wire size: 2 × 0.5 to 2.0 mm

2

Total wire length of remote controller wiring and remote controller inter-unit wiring = L + L1 + L2 + … Ln

In case of wired type only

In case of wireless type included

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

Up to 500 m

Up to 400 m

Up to 200 m

CAUTION

The remote controller wire and Indoor / Outdoor connecting wires cannot be parallel to contact each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise or other factor.


Indoor unit

L

Remote controller


L1 L2


Ln

(Max. 8 units)

Indoor unit

21-EN 22-EN




Wiring between indoor unit and outdoor unit

1. Figure below shows the wiring connections between the indoor and outdoor units and between the indoor units and remote controller. The wires indicated by the broken lines or dot-and-dash lines are provided at the locally.

2. Refer to the both indoor and outdoor unit wiring diagrams.

3. The power of the indoor unit is supplied from the outdoor unit.

Wiring diagram

Single system Simultaneous twin system

Remote controller


Remote controller



A B

Indoor side

Indoor side

A B A B

1 2 3

1 2 3

Power supply

1 2 3

Indoor side

Indoor / Outdoor connecting wires

Outdoor side


Outdoor side 1 2 3

Power supply

Simultaneous triple and double twin system

Remote controller



Indoor side

A B

1 2 3

Indoor side


Outdoor side 1 2 3

Power supply

A B

1 2 3

Indoor power inter-unit wiring

Triple


Indoor side


A B

1 2 3

1 2 3



Indoor side

A B

1 2 3


Double twin

* Use 2-core shield wire (MVVS 0.5 to 2.0 mm

2

or more) for the remote controller wiring in the simultaneous twin, simultaneous triple and simultaneous double twin systems to prevent noise problems. Connect both ends of the shield wire to earth leads.

* Connect earth wires for each indoor unit in the simultaneous twin, simultaneous triple and simultaneous double twin systems.



Wire connection

REQUIREMENT

• Connect the wires matching the terminal numbers. Incorrect connection causes a trouble.

• Pass the wires through the bushing of wire connection holes of the indoor unit.

• Keep a margin (Approx. 100 mm) on a wire to hang down the electrical control box at servicing or other purpose.

• The low-voltage circuit is provided for the remote controller. (Do not connect the high-voltage circuit)

• Remove the cover of the electrical control box by taking off the mounting screws (3 positions) and pushing the hooking section. (The cover of the electrical control box remains hanged to the hinge.)

• Connect the indoor / outdoor connecting wires and remote controller wire to the terminal block of the electrical control box. (Do not apply tension to the connecting section of the terminal block.)

• Tighten the screws of the terminal block, and fix the wires with cord clamp attached to the electrical control box.

(Do not apply tension to the connecting section of the terminal block.)

• Using the attached heat insulator material, seal the pipe connecting port. Otherwise, dewing may be caused.

• Mount the cover of the electrical control box without pinching wires. (Mount the cover after wiring on the ceiling panel.)

Screws

P.C. board

Electrical control box

Screw

Hooking section

Cover of electrical control box

Remote controller terminal block

A B

Heat insulation to wiring connecting port

A B 1 2 3

Indoor / Outdoor connecting terminal block

1 2 3

Adhered surface

Heat insulator A

Notched section

Cord clamp

Heat insulator B

23-EN

– 12 –

EN

24-EN



10 1 2 3

10

70

50

Earth line

Connecting wire

See the figure on the left for connecting wires to the terminal block.

Indoor / Outdoor connecting wire


Strip off approx. 9 mm the wire to be connected.

Wiring diagram

Terminal block for remote controller wiring of indoor unit

Terminal block

A

B

A

B

Remote controller unit

Remote controller wire

(Locally procured)

Wiring on the ceiling panel

As per the Installation Manual of the ceiling panel, connect the connector (2P: Red) of the ceiling panel to the connector (5P: White) onto the P.C. board within the electrical control box.

Cord clamp

5P connector (White)

Wire from ceiling panel

25-EN

Installation Manual Installation Manual

– 13 –


8

Applicable Controls

REQUIREMENT

When the air conditioner is used for the first time, it will take some moments after the power has been turned on before the remote controller becomes available for operations: This is normal and is not indicative of trouble.

• Concerning the automatic addresses (The automatic addresses are set up by performing operations on the outdoor interface circuit board.)

While the automatic addresses are being set up, no remote controller operations can be performed. Setup takes up to 10 minutes (usually about 5 minutes).

• When the power is turned on after automatic address setup

It takes up to 10 minutes (usually about 3 minutes) for the outdoor unit to start operating after the power has been turned on.

Before the air conditioner was shipped from the factory, all units are set to [STANDARD] (factory default). If necessary, change the indoor unit settings.

The settings are changed by operating the wired remote controller.

* The settings cannot be changed using only a wireless remote controller, simple remote controller or group control remote controller by itself so install a wired remote controller separately as well.

Basic procedure for changing

settings

Change the settings while the air conditioner is not working. (Stop the air conditioner before making

settings.)

CAUTION

Set only the CODE No. shown in the following table: Do

NOT set any other CODE No.

If a CODE No. not listed is set, it may not be possible to operate the air conditioner or other trouble with the product may result.

* The displays appearing during the setting process differ from the ones for previous remote controllers

(AMT21E, AMT31E). (There are more CODE No.)

1

3

4

6

1 5

2

1

Push and hold 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 button to clear the display content, and repeat the procedure from the beginning. (No operation of the remote controller is accepted for a while after button is pushed.)

(While air conditioners are operated under the group control, “ALL” is displayed first. When

is pushed, the indoor unit number displayed following “ALL” is the header unit.)

(* Display content varies with the indoor unit model.)

26-EN




Group control for system of multiple units

One remote controller can control maximum 8 indoor units as a group.

▼ Group control in single system

Outdoor unit

Outdoor unit Outdoor unit Outdoor unit Outdoor unit

Indoor unit

Remote controller


Indoor unit

(Max. 8 units)

Finish of address setup by power-ON

Indoor unit

• For wiring procedure and wiring method of the individual line (Identical refrigerant line) system, follow 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.

• 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 in about 3 minutes. 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.

• The follow mentioned system configuration is a case when complex systems in which systems of the simultaneous twin and simultaneous triple unit is controlled as a group by a remote controller.

(Example) Group control for complex system

Line system

<Single system> <Twin system>

Procedure example 1

<Triple system>

Outdoor unit

Indoor unit

Indoor No.

(Example of random setup)

After setup of automatic address

Address: 1-1-2

Outdoor unit

Indoor unit

Address: 2-1-2

Line address

Group address

Indoor address

(Example of address setup change)

After setup change of manual address

Address: 1-1-1 Address: 2-1-2

Indoor unit

Address: 3-3-1

Address: 2-2-2

Outdoor unit

Indoor unit

Address: 3-1-2

Address: 3-1-2

Indoor unit

Remote controller

Address: 2-2-2

Address: 3-2-2

Indoor unit

Address: 1-2-2

Address: 3-3-2

The above address is set by the automatic addressing when the power is turned on. However, line addresses and indoor addresses are set randomly. For this reason, change the setting to match line addresses with indoor addresses.



[Procedure example]

Manual address setup procedure

While the operation stops, change the setup.

(Stop the operation of the unit.)

3

-2,

4

-2,

5

-2

7

3

-1,

4

-1,

5

6

-1,

7

3

-3,

4

-3,

5

-3,

1 2,6

1

Push + + buttons simultaneously 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 button to erase the display and repeat procedure from the first step.

(After pushing button, operation of the remote controller is not accepted for approx. 1 minute.)

(For a group control, No. of the firstly displayed indoor unit becomes the header unit.)

3

1. Specify CODE No. [12] with TEMP. buttons.

(CODE No. [12]: Line address)

/

2. Change the line address from [3] to [2] with TIME

3. Push

In this time, the setup finishes when the display changes from flashing to lighting.

Indoor UNIT No. before setup change is displayed.

4


(CODE No. [13]: Indoor address)

/

2. Change the indoor address from [3] to [2] TIME

3. Push



(* Display changes according to the model No. of indoor unit.)

2

Every time button is pushed, 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-EN

– 16 –

EN

32-EN




– 15 –


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.

2

4

1 3

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. is also displayed.

2

Pushing number of sensor (CODE No.) to be monitored. (See the following table.)

3

Pushing (left side of the button), select an indoor unit to be monitored. The sensor temperatures of indoor units and their outdoor unit in the control group are displayed.

4

Push button to return to the normal display.

CODE No.

01

02

03

04

F3

Indoor unit data

Data name

Room temperature (remote controller)

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)

CODE No.

60

61

62

63

64

65

6A

F1

Outdoor unit data

Data name

Outdoor unit heat exchanger (coil) temperature (TE)

Outside air temperature (TO)

Compressor discharge temperature (TD)

Compressor suction temperature (TS)

—

Heatsink temperature (THS)

Operating current (x1/10)

Compressor cumulative operating hours

(x100 h)


Group control

Simultaneous twin, triple or double twin system

A combination with an outdoor unit allows simultaneous ON / OFF operation of the indoor units. The following system patterns are available.

- Two indoor units for the twin system

- Three indoor units for the triple system

- Four indoor units for the double-twin system

▼ Twin system

Outdoor unit


Remote controller


▼ Triple system

Outdoor unit

Indoor unit Indoor unit Indoor unit

Remote controller


▼ Double twin

Outdoor unit

Indoor unit Indoor unit Indoor unit Indoor unit

Remote controller


• For wiring procedure and wiring method, follow to the “Electrical connection” in this manual.

• 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.


29-EN 30-EN




Group control for system of multiple units

One remote controller can control maximum 8 indoor units as a group.

▼ Group control in single system

Outdoor unit

Outdoor unit Outdoor unit Outdoor unit Outdoor unit

Indoor unit

Remote controller


Indoor unit

(Max. 8 units)


Indoor unit

• For wiring procedure and wiring method of the individual line (Identical refrigerant line) system, follow 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.

• 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 in about 3 minutes. During setup of automatic address, the remote controller operation is not accepted.


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.

• The follow mentioned system configuration is a case when complex systems in which systems of the simultaneous twin and simultaneous triple unit is controlled as a group by a remote controller.

(Example) Group control for complex system

Line system

<Single system> <Twin system>

Procedure example 1

<Triple system>

Outdoor unit

Indoor unit

Indoor No.

(Example of random setup)

After setup of automatic address

Address: 1-1-2

Outdoor unit

Indoor unit

Address: 2-1-2

Line address

Group address

Indoor address

(Example of address setup change)

After setup change of manual address

Address: 1-1-1 Address: 2-1-2

Indoor unit

Address: 3-3-1

Address: 2-2-2

Outdoor unit

Indoor unit

Address: 3-1-2

Address: 3-1-2

Indoor unit

Remote controller

Address: 2-2-2

Address: 3-2-2

Indoor unit

Address: 1-2-2

Address: 3-3-2

The above address is set by the automatic addressing when the power is turned on. However, line addresses and indoor addresses are set randomly. For this reason, change the setting to match line addresses with indoor addresses.



[Procedure example]

Manual address setup procedure

While the operation stops, change the setup.

(Stop the operation of the unit.)

3

-2,

4

-2,

5

-2

7

3

-1,

4

-1,

5

6

-1,

7

3

-3,

4

-3,

5

-3,

1 2,6

1

Push + + buttons simultaneously for 4 seconds or more. After a while, the display part flashes as shown below. Check the displayed CODE No. is [10].




3


(CODE No. [12]: Line address)

/

2. Change the line address from [3] to [2] with TIME

3. Push



4


(CODE No. [13]: Indoor address)

/

2. Change the indoor address from [3] to [2] TIME

3. Push




2

Every time button is pushed, 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-EN

– 16 –

EN

32-EN




– 17 –


5

1. Specify CODE No. [14] TEMP.

(CODE No. [14]: Group address)

/ buttons.

2. Change the SET DATA from [0001] to [0002] TIME

/ buttons.

(SET DATA [Header unit: 0001] [Follower unit:

0002]) button.



7

After check of the changed contents, push

button. (Setup is determined.) When button is pushed, the display disappears and the status becomes the usual stop status. (When button is pushed the operation from the remote 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

1

.

To recognize the position of the corresponding indoor unit though the indoor UNIT No. is known

Check the position during operation stop.

(Stop operation of the set.)

6

If there is other indoor unit to be changed, repeat procedure

2

to

5

to change the setup.

When the above setup has finished, push to select the indoor UNIT No. before change of setup, specify CODE No. [12], [13], [14] in order with TEMP. / buttons, and then check the changed contents.

Address change check Before change:

[3-3-1]

→ After change: [2-2-2]

Pushing button clears the contents of which setup was changed.

(In this case, procedure from

2

is repeated.)


1

1,3

2

1

Push + buttons simultaneously 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 as [ ] and fans of all the indoor units in the group control operate.

Check the displayed CODE No. is [01].




3

After confirmation, push button to return the mode to the usual mode.

When button is pushed, the display disappears and the status becomes the usual stop status.

(When button is pushed the operation from the remote controller is not accepted for approx. 1 minute.)


2

In the group control, every time button is pushed, 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.


33-EN 34-EN



8 °C Operation (SDI series4

and DI series4 only)

Pre-heating operation can be set for cold regions where room temperature drops to below zero.

1

Push + + buttons simultaneously 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].




2

Every time button is pushed, 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.

3

Specify CODE No. [d1] TEMP. / buttons.

4

Select SET DATA [0001] TIME / buttons.

SET DATA 8 °C Operation setting

0000

0001

None

(Factory default)

8 °C Operation setting

5

Push

In this time, the setup finishes when the display changes from flashing to lighting.

6

Push button.(Setup is determined.)

When button is pushed, the display disappears and the status becomes the usual stop status. (When button is pushed the operation from the remote controller is not accepted for approx. 1 minute.)

35-EN

Installation Manual Installation Manual


9

Test Run

Before test run

• Before turning on the power supply, carry out the following procedure.

1) By using 500 V-megger, check that resistance of 1 M

Ω or more exists between the terminal block 1 to 3 and the earth (grounding).

If resistance of less than 1 M

Ω 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.

Execute a test run

Operate the unit with the wired remote controller 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 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.

Wired remote controller

2, 4

3

1,5

1

Push button for 4 seconds or more.

[TEST] is displayed on the display part and the selection of mode in the test mode is permitted.

2

Push

3

Select the operation mode with button, [ Cool] or [ Heat].

• Do not run the air conditioner in a mode other than [ Cool] or [ Heat].

• The temperature controlling function does not work during test run.

• The detection of error is performed as usual.

4

After the test run, push stop a test run.

button to

(Display part is same as procedure 1.)

5

Push button to cancel (release from) the test run mode.

([TEST] disappears on the display and the status returns to a normal.)

EN

36-EN

– 18 –


Small screw




Wireless remote controller

1

Remove a small screw which fixes the nameplate of the receiver unit.

Remove the nameplate of the sensor section by inserting a flat-blade screwdriver into the notch at the bottom of the plate, and set the Dip switch to

[TEST RUN ON].

2

Execute a test operation with ON / OFF button on the wireless remote controller.

• , , and LED flash during test operation.

• Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is invalid.

Do not use this method in the operation other than test operation because the equipment is damaged.

3

Use either COOL or HEAT operation mode for a test operation.

*The outdoor unit does not operate approx. 3 minutes after power-ON and operation stop.

4

After the test operation finished, stop the air conditioner from the wireless remote controller, and return Dip switch of the receiver section as before.

(A 60-minutes timer clearing function is attached to the receiver section in order to prevent a continuous test operation.)

M4 × 25 screw

(2 pieces)

Receiver unit

Spacer

When a test run is not

performed properly

When a test run is not performed properly, refer to the error code and the part to be checked on

“Troubleshooting”.

– 19 –


10

Maintenance

<Daily maintenance>

▼ Cleaning of air filter

If is displayed on the remote controller, maintain the air filter.

1

Push the button to stop the operation, then turn off the circuit breaker.

After the cooling or dry operation, the fan keeps running for self-cleaning. Push the button twice to stop the operation.

8

2

Open the air intake grille.

1) Loosen the fixing screw.

1,7

Air intake grille knob

3

Take out the air filter.

• Push the extrusion of the air filter away from the grille and remove.

Strap to prevent falling

Push

Air filter

4

Cleaning with water or vacuum cleaner.

• If dirt is heavy, clean the air filter using tepid water with a neutral detergent or just water.

• After cleaning with water, dry the air filter sufficiently in a shaded place.

Nameplate

2) Slide the fixing bracket toward the outside.

3) Slide the air intake grille buttons to detach the air intake grille from the ceiling panel. Lower the grille slowly whilst holding.

Notch

37-EN 38-EN



5

Mount the air filter.

6

Close the air intake grille.

• In inverse process of 1, firmly attach the knob, fixing bracket and fixing screw.

Air intake grille knob

7

Turn on the circuit breaker, then push the

button on the remote controller to start the operation.

8

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.)

39-EN




▼ 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 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.

Inspection before maintenance

Following inspection must be carried out by a qualified installer or qualified service person.

Parts

Heat exchanger

Fan motor

Fan

Filter

Drain pan

Inspection method

Access from inspection opening and remove the access panel. Examine the heat exchanger if there is any clogging or damages.

Access from inspection opening and check if any abnormal noise can be heard.

Access from inspection opening and remove the access panel. Examine the fan if there are any waggles, damages or adhesive dust.

Go to installed location and check if there are any stains or breaks on the filter.

Access from inspection opening and remove the access panel. Check if there is any clogging or drain water is polluted.

▼ Maintenance List

Part

Heat exchanger

Unit Check (visual / auditory)

Indoor / outdoor Dust / dirt clogging, scratches

Fan motor Indoor / outdoor Sound

Filter Indoor Dust / dirt, breakage

• Vibration, balance

• Dust / dirt, appearance

Fan

Air intake / discharge grilles

Drain pan

Ornamental panel, louvres

Exterior

Indoor

Indoor / outdoor Dust / dirt, scratches

Indoor

Indoor

Outdoor

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.

– 20 –

EN

40-EN


41-EN

Error code Indoor UNIT No. in which an error occurred

3

1

1

When and buttons are pushed simultaneously 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..

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.

3

After confirmation, push button to return to the usual display.




– 21 –


11

Troubleshooting

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.

Confirmation of error log

When an error occurred on the air conditioner, the error log can be confirmed with the following procedure.

(The error log is stored in memory up to 4 errors.)

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

2

Error codes and parts to be checked

Wired remote controller display

Wireless remote controller

Sensor block display of receiving unit

Indication

Operation Timer

Ready

GR GR OR

Flashing

Main defective parts

E01

E02

E03

E04

E08

E09

E10

E18

E31

F01

F02

F04

F06

F07

F08

F10

F12

F13

F15

F29

ALT

ALT

ALT

ALT

ALT

ALT

ALT

ALT

ALT

ALT

SIM

Judging device

Parts to be checked / error description

Air conditioner status

No header remote controller

Remote controller

Incorrect remote controller setting --- The header remote controller has not been set (including two remote controllers).

No signal can be received from the indoor unit.

*

Remote controller communication error

Remote controller transmission error

Indoor unit-remote controller regular communication error

Indoor unit-outdoor unit serial communication error

IPDU-CDB communication error

Duplicated indoor addresses

Remote controller

Indoor

Indoor

Indoor / outdoor connecting wires, indoor P.C. board, remote controller

--- No signal can be sent to the indoor unit.

*

Remote controller, network adapter, indoor P.C. board --- No data is received from the remote controller or network adapter.

Indoor / outdoor connecting wires, indoor P.C. board, outdoor P.C. board --- Serial communication error between indoor unit and outdoor unit

Autoreset

Autoreset

Indoor

Indoor address setting error --- The same address as the self-address was detected.

Autoreset

Duplicated header remote controllers

CPU-CPU communication error

Header unit follower unit regular communication error

Remote controller

Indoor

Remote controller address setting error --- Two remote controllers are set as header in the doubleremote controller control.

(* The header indoor unit stops raising alarm and follower indoor units continue to operate.)

Indoor P.C. board --- Communication error between main MCU and motor microcomputer MCU

*

Indoor

IPDU communication error

Outdoor Communication error between IPDU and CDB

Autoreset

Indoor P.C. board --- Regular communication is not possible between header and follower indoor units or between twin header (main) and follower (sub) units.

Autoreset

Entire stop

Indoor unit heat exchanger sensor

(TCJ) error

Indoor unit heat exchanger sensor

(TC) error

Outdoor unit discharge temp. sensor (TD) error

Outdoor unit temp. sensor (TE/TS) error

TL sensor error

Indoor

Indoor

Outdoor

Outdoor

Outdoor

Heat exchanger sensor (TCJ), indoor P.C. board ---

Open-circuit or short-circuit of the heat exchanger sensor (TCJ) was detected.

Heat exchanger sensor (TC), indoor P.C. board ---

Open-circuit or short-circuit of the heat exchanger sensor (TC) was detected.

Autoreset

Autoreset

Outdoor temp. sensor (TD), outdoor P.C. board ---

Open-circuit or short-circuit of the discharge temp. sensor was detected.

Outdoor temp. sensors (TE/TS), outdoor P.C. board -

-- Open-circuit or short-circuit of the heat exchanger temp. sensor was detected.

TL sensor may be displaced, disconnected or shortcircuited.

Entire stop

Entire stop

Entire stop

Outdoor unit outside air temp. sensor error

Indoor unit room temp. sensor (TA) error

Outdoor

Indoor

Outdoor temp. sensor (TO), outdoor P.C. board ---

Open-circuit or short-circuit of the outdoor air temp. sensor was detected.

Operation continued

Room temp. sensor (TA), indoor P.C. board --- Opencircuit or short-circuit of the room temp. sensor (TA) was detected.

Autoreset

TS sensor error

Heat sink sensor error

Temp. sensor connection error

Outdoor

Outdoor

TS sensor may be displaced, disconnected or shortcircuited.

Abnormal temperature was detected by the temp. sensor of the IGBT heat sink.

Entire stop

Entire stop

Outdoor Temp. sensor (TE/TS) may be connected incorrectly.

Entire stop

Indoor unit, other P.C. board error

Indoor Indoor P.C. board --- EEPROM error

Autoreset

42-EN






43-EN




Indication

Operation Timer

Ready

GR GR OR

Flashing


F31

H01

H02

H03

H04

H06

L03

L07

L08

L09

L10

L20

L29

L30

L31

P01

P03

P04

P05

P07

P10

P12

SIM

SIM

SIM

SIM

SIM

SIM

SIM

SIM

SIM

SIM

ALT

ALT

ALT

ALT

ALT

ALT

ALT

Judging device



Outdoor unit P.C. board

Outdoor unit compressor breakdown

Outdoor unit compressor lock

Outdoor unit current detect circuit error

Case thermostat operation

Outdoor unit lowpressure system error

Duplicated header indoor units

Indoor group address not set

Indoor unit capacity not set

Outdoor unit P.C. board

LAN communication error

Outdoor Outdoor P.C. board ---- In the case of EEPROM error.

Entire stop

Outdoor

Current detect circuit, power voltage --- Minimum frequency was reached in the current releasing control or short-circuit current (Idc) after direct excitation was detected

Entire stop

Outdoor Compressor circuit --- Compressor lock was detected.

Entire stop

Outdoor

Outdoor

Current detect circuit, outdoor unit P.C. board ---

Abnormal current was detected in AC-CT or a phase loss was detected.

Entire stop

Malfunction of the case thermostat

Entire stop

Outdoor

Indoor

Group line in individual indoor unit Indoor

Indoor

Indoor

Outdoor

Network adapter central control

Current, high-pressure switch circuit, outdoor P.C. board --- Pressure sensor error was detected or lowpressure protective operation was activated.

Entire stop

Indoor address setting error --- There are two or more header units in the group.

Entire stop

Indoor address setting error --- There is at least one group-connected indoor unit among individual indoor units.

Entire stop

Indoor address setting error --- Indoor address group has not been set.

Entire stop

Indoor unit capacity has not been set.

In the case of outdoor P.C. board jumper wire (for service) setting error

Entire stop

Entire stop

Address setting, central control remote controller, network adapter --- Duplication of address in central control communication

Autoreset

Other outdoor unit error

Abnormal external input into indoor unit

(interlock)

Phase sequence error, etc.

Indoor unit fan error

Outdoor unit discharge temp. error

Outdoor unit highpressure system error

Heat sink overheat

Indoor unit water overflow detected

The fan error of the indoor unit

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Outdoor

Open phase detected Outdoor

Outdoor

Indoor

Indoor

Other outdoor unit error

Entire stop

1) Communication error between IPDU MCU and

CDB MCU

2) Abnormal temperature was detected by the heat sink temp. sensor in IGBT.

External devices, outdoor unit P.C. board ---

Abnormal stop due to incorrect external input into

CN80

Entire stop

Entire stop

Power supply phase sequence, outdoor unit P.C. board --- Abnormal phase sequence of the 3-phase power supply

Operation continued

(thermost at OFF)

Indoor fan motor, indoor P.C. board --- Indoor AC fan error (fan motor thermal relay activated) was detected.

Entire stop

An error was detected in the discharge temp. releasing control.

Entire stop

High-pressure switch --- The IOL was activated or an error was detected in the high-pressure releasing control using the TE.

Entire stop

The power wire may be connected incorrectly. Check open phase and voltages of the power supply.

Entire stop

Abnormal temperature was detected by the temp. sensor of the IGBT heat sink.

Entire stop

Drain pipe, clogging of drainage, float switch circuit, indoor P.C. board --- Drainage is out of order or the float switch was activated.

Abnormal operation of the indoor fan motor, indoor

P.C. board, or indoor DC fan (over current or lock, etc.) is detected.

Entire stop

Entire stop

– 22 –




Indication

Operation Timer

Ready

GR GR OR

Flashing


P15

P19

P20

P22

P26

P29

P31

ALT

ALT

ALT

ALT

ALT

ALT

ALT

Judging device



Gas leakage detected

4-way valve error

Outdoor

Outdoor

(Indoor)

There may be gas leakage from the pipe or connecting part. Check for gas leakage.

4-way valve, indoor temp. sensors (TC/TCJ) --- An error was detected due to temperature drop of the indoor unit heat exchanger sensor when heating.

Entire stop

Autoreset

High-pressure protective operation

Outdoor unit inverter

Idc activated

Outdoor

Outdoor unit fan error Outdoor

Outdoor

High-pressure protection

Entire stop

Outdoor unit fan motor, outdoor unit P.C. board --- An error (overcurrent, locking, etc.) was detected in the outdoor unit fan drive circuit.

Entire stop

IGBT, outdoor unit P.C. board, inverter wiring, compressor --- Short-circuit protection for compressor drive circuit devices (G-Tr/IGBT) was activated.

Entire stop

Outdoor unit position error

Outdoor

Outdoor unit P.C. board, high-pressure switch ---

Compressor motor position error was detected.

Entire stop

Entire stop

Other indoor unit error

Indoor

Another indoor unit in the group is raising an alarm.

E03/L07/L03/L08 alarm check locations and error description

Autoreset

: Lighting : Flashing : OFF : The air conditioner automatically enters the auto-address setting mode.

ALT: When two LEDs are flashing, they flash alternately. SIM: When two LEDs are flashing, they flash in synchronization.

Receiving unit display OR: Orange GR: Green

EN

44-EN


TOSHIBA RAV-SM 404MUT-E, 454MUT-E, 564MUT-E air conditioner Installation Manual

Assistant Bot

Installation Manual

Indoor Unit

Model name:

Compact 4-way Cassette type

Installation Manual

English

ADOPTION OF NEW REFRIGERANT

Contents

 Warning indications on the air conditioner unit

ELECTRICAL SHOCK HAZARD

BURST HAZARD

Precautions for Safety

Accessory Parts

 Separate sold parts

Selection of Installation Place

 Installation space

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

Avoid installing in the following places.

 Selection of installation place

 Ceiling height

▼ Height list of ceiling possible to be installed

Installation

 External view

 Opening a ceiling and

installation of hanging bolts

<For existing ceiling>

<For new ceiling>

 Installation of ceiling panel

(Sold separately)

 Installation of remote

controller (Sold separately)

 Wireless remote controller

 Drain up

Drain Piping

 Piping / Heat insulating

material

 Flexible hose

 Connecting drain pipe

 Check the draining

 Evacuation

Electrical Connection

 Indoor / Outdoor connecting wires specifications

 Evacuation

Electrical Connection

 Indoor / Outdoor connecting wires specifications

 Wiring between indoor unit and outdoor unit

 Wire connection

 Remote controller wiring

 Wiring on the ceiling panel

Applicable Controls

 Basic procedure for changing

settings

Push and hold 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].

▼ Group control in single system

Push + + buttons simultaneously for 4 seconds or more. After a while, the display part flashes as shown below. Check the displayed CODE No. is [10].

Every time button is pushed, the indoor UNIT No. in the group control is displayed in order. Select the indoor unit of which setup is changed.

 Remote controller switch

monitoring function

Push and buttons simultaneously for at least 4 seconds to call the service monitor mode.

Pushing number of sensor (CODE No.) to be monitored. (See the following table.)

Pushing (left side of the button), select an indoor unit to be monitored. The sensor temperatures of indoor units and their outdoor unit in the control group are displayed.

Push button to return to the normal display.

 Group control

▼ Twin system

▼ Triple system

▼ Double twin

▼ Group control in single system

Push + + buttons simultaneously for 4 seconds or more. After a while, the display part flashes as shown below. Check the displayed CODE No. is [10].

Every time button is pushed, the indoor UNIT No. in the group control is displayed in order. Select the indoor unit of which setup is changed.

After check of the changed contents, push

button. (Setup is determined.) When button is pushed, the display disappears and the status becomes the usual stop status. (When button is pushed the operation from the remote controller is not accepted for approx. 1 minute.)

If there is other indoor unit to be changed, repeat procedure

to

to change the setup.

Push + buttons simultaneously for

4 seconds or more.

After confirmation, push button to return the mode to the usual mode.

Warning indications on the air conditioner unit

Separate sold parts

Installation space

Selection of installation place

Ceiling height

External view

Opening a ceiling and

Installation of ceiling panel

Installation of remote

Wireless remote controller

Drain up

Piping / Heat insulating

Flexible hose

Connecting drain pipe

Check the draining

Evacuation

Indoor / Outdoor connecting wires specifications

Evacuation

Indoor / Outdoor connecting wires specifications

Wiring between indoor unit and outdoor unit

Wire connection

Remote controller wiring

Wiring on the ceiling panel

Basic procedure for changing

Remote controller switch

Group control

8 °C Operation (SDI series4

Before test run

Execute a test run

When a test run is not

Confirmation and check

Confirmation of error log

Error codes and parts to be checked