AIR CONDITIONER

INDOOR UNIT

Wall Mounted Type

INSTALLATION MANUAL

INSTALLATION MANUAL

For authorized service personnel only.

INSTALLATIONSANLEITUNG

Nur für autorisiertes Fachpersonal.

MANUEL D'INSTALLATION

Pour le personnel agréé uniquement.

MANUAL DE INSTALACIÓN

Sólo para personal de mantenimiento autorizado.

MANUALE DI INSTALLAZIONE

Esclusivamente destinato al personale autorizzato.

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Μόνο για εξουσιοδοτημένο προσωπικό του σέρβις.

MANUAL DE INSTALAÇÃO

Apenas para técnicos de assistência autorizados.

РУКОВОДСТВО ПО УСТАНОВКЕ

Только для авторизованного обслуживающего персонала.

MONTAJ KILAVUZU

Sadece yetkili servis personeli içindir.

PART NO. 9315342874-03

INSTALLATION MANUAL

PART NO. 9315342874-03

INDOOR UNIT (Wall Mounted Type)

Contents

2.1. Precautions for using R410A refrigerant ............................................................ 1

2.2. Special tools for R410A ...................................................................................... 1

2.3. For authorized service personnel only. .............................................................. 2

2.5. Optional parts ......................................................................................................... 2

3.1. Type of copper pipe and insulation material ....................................................... 2

3.2. Additional materials required for installation ...................................................... 2

5. SELECTING THE MOUNTING POSITION ................................................................. 3

6.2. Indoor unit piping direction ................................................................................. 3

6.3. Cutting the hole in the wall for the connecting piping ......................................... 3

6.4. Installing the wall hook bracket .......................................................................... 3

6.5. Forming the drain hose and pipe ....................................................................... 4

6.6. Flare connection (Pipe connection) .................................................................... 4

7.1. Wiring system diagram ....................................................................................... 5

7.2. Indoor unit wiring ................................................................................................ 5

7.3. How to connect wiring to the terminals .............................................................. 5

8. FINISHING................................................................................................................... 6

9. FRONT PANEL REMOVAL AND INSTALLATION ...................................................... 6

9.1. Intake grill removal ............................................................................................. 6

9.2. Intake grill installation ......................................................................................... 6

9.3. Front panel removal ........................................................................................... 6

9.4. Front panel installation ....................................................................................... 6

11. REMOTE CONTROLLER INSTALLATION .................................................................. 7

11.1.

Remote controller holder installation .................................................................. 7

12. OPTIONAL KIT INSTALLATION (OPTION) ................................................................. 7

12.1. Before install optional remote controller ............................................................. 7

12.2. Remote controller cable modifi cation ................................................................. 7

12.3.

External input / output Wire modifi cation ............................................................ 7

12.4. Front panel, control box cover and display case removal .................................. 8

12.5. Connecting cable to control board connector ..................................................... 8

12.6. Front panel, control box cover and display case installation .............................. 8

13. FUNCTION SETTING.................................................................................................. 8

1. SAFETY PRECAUTIONS

• Be sure to read this Manual thoroughly before installation.

• The warnings and precautions indicated in this Manual contain important information pertaining to your safety. Be sure to observe them.

• Hand this Manual, together with the Operating Manual, to the customer. Request the customer to keep them on hand for future use, such as for relocating or repairing the unit.

WARNING

This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of the user.

Request your dealer or a professional installer to install the indoor unit in accordance with this Installation Manual. An improperly installed unit can cause serious accidents such as water leakage, electric shock, or fi re. If the indoor unit is installed in disregard of the instructions in the Installation Manual, it will void the manufacturer’s warranty.

Do not turn ON the power until all work has been completed. Turning ON the power before the work is completed can cause serious accidents such as electric shock or fi re.

If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact with a fl ame, it produces a toxic gas.

Installation work must be performed in accordance with national wiring standards by authorized personnel only.

CAUTION

This mark indicates procedures which, if improperly performed, might possibly result in personal harm to the user, or damage to property.

Read carefully all security information before use or install the air conditioner.

Do not attempt to install the air conditioner or a part of the air conditioner by yourself.

This unit must be installed by qualifi ed personnel with a capacity certifi cate for handling refrigerant fl uids. Refer to regulation and laws in use on installation place.

The installation must be carried out in compliance with regulations in force in the place of installation and the installation instructions of the manufacturer.

This unit is part of a set constituting an air conditioner. It must not be installed alone or with non-authorized by the manufacturer.

Always use a separate power supply line protected by a circuit breaker operating on all wires with a distance between contact of 3mm for this unit.

The unit must be correctly earthed (grounded) and the supply line must be equipped with a differential breaker in order to protect the persons.

The units are not explosion proof and therefore should not be installed in explosive atmosphere.

Never touch electrical components immediately after the power supply has been turned off. Electric shock may occur. After turning off the power, always wait 5 minutes before touching electrical components.

This unit contains no user-serviceable parts. Always consult authorized service personnel to repairs.

When moving, consult authorized service personnel for disconnection and installation of the unit.

2. ABOUT THE UNIT

2.1. Precautions for using R410A refrigerant

The basic installation work procedures are the same as conventional refrigerant (R22) models.

However, pay careful attention to the following points:

Since the working pressure is 1.6 times higher than that of conventional refrigerant (R22) models, some of the piping and installation and service tools are special. (See the table below.)

Especially, when replacing a conventional refrigerant (R22) model with a new refrigerant

R410A model, always replace the conventional piping and fl are nuts with the R410A piping and fl are nuts.

Models that use refrigerant R410A have a different charging port thread diameter to prevent erroneous charging with conventional refrigerant (R22) and for safety.

Therefore, check beforehand. [The charging port thread diameter for R410A is 1/2 inch.]

Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant (R22) models. Also, when storing the piping ,securely seal the opening by pinching, taping, etc.

When charging the refrigerant, take into account the slight change in the composition of the gas and liquid phases. And always charge from the liquid phase where refrigerant composition is stable.

2.2. Special tools for R410A

Tool name

Gauge manifold

Contents of change

Pressure is high and cannot be measured with a conventional

(R22) gauge. To prevent erroneous mixing of other refrigerants, the diameter of each port has been changed.

It is recommended the gauge with seals-0.1 to 5.3 MPa (-1 to

53 bar) for high pressure.

-0.1 to 3.8 MPa (-1 to 38 bar) for low pressure.

Charge hose

Vacuum pump

To increase pressure resistance, the hose material and base size were changed.

A conventional vacuum pump can be used by installing a vacuum pump adapter.

Gas leakage detector

Special gas leakage detector for HFC refrigerant R410A.

Copper pipes

It is necessary to use seamless copper pipes and it is desirable that the amount of residual oil is less than 40 mg/10 m. Do not use copper pipes having a collapsed, deformed or discolored portion (especially on the interior surface). Otherwise, the expansion value or capillary tube may become blocked with contaminants.

As an air conditioner using R410A incurs pressure higher than when using R22, it is necessary to choose adequate materials.

CONNECTION PIPE REQUIREMENT

WARNING

Do not use the existing (for R22) piping and fl are nuts.

If the existing materials are used, the pressure inside the refrigerant cycle will rise and cause failure, injury, etc. (Use the special R410A materials.)

When installing and relocating the air conditioner, do not mix gases other than the specifi ed refrigerant (R410A) to enter the refrigerant cycle.

If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to an abnormally high value and cause failure, injury, etc.

En-1

2.3. For authorized service personnel only.

WARNING

For the air conditioner to operate satisfactorily, install it as outlined in this installation manual.

Connect the indoor unit and outdoor unit or branch box with the air conditioner piping and cables available from your local distributor. This installation manual describes the correct connections using the installation set available from your local distributor.

Installation work must be performed in accordance with national wiring standards by authorized personnel only.

Do not turn on the power until all installation work is complete.

CAUTION

This installation manual describes how to install the indoor unit only.

To install the outdoor unit, refer to the installation manual included with the outdoor unit or branch box.

• Be careful not to scratch the air conditioner when handling it.

• After installation, explain correct operation to the customer, using the operating manual.

2.4. Accessories

The following installation accessories are supplied. Use them as required.

Name and Shape

Operating Manual

Q’ty Name and Shape

Drain hose insulation

Q’ty

1 1

Installation Manual

(This manual)

Wall hook bracket

Remote controller

Battery

Remote controller holder

1

1

Tapping screw

(M4 × 25 mm)

Tapping screw

(M3 × 12 mm)

1

2

Cloth tape

Air cleaning filter

Air cleaning filter frame

1

8

2

2

2.5. Optional parts

Refer to each installation manual for the method of installing optional parts.

Parts name

Wired Remote Controller

Simple Remote Controller

External connect kit

Model No.

UTY-RNN¿M

UTY-RSN¿M

UTY-XWZX

Application

For air conditioner operation

For air conditioner operation

For control input/output port

3. GENERAL

This INSTALLATION MANUAL briefl y outlines where and how to install the air conditioning system.

Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning.

3.1. Type of copper pipe and insulation material

CAUTION

Refer to the installation manual for the outdoor unit for description of allowable pipe length and height difference.

Model type

18L

24L

30L

Liquid pipe

6.35 mm (1/4 in.)

6.35 mm (1/4 in.)

9.52 mm (3/8 in.)

Diameter

Gas pipe

12.70 mm (1/2 in.)

15.88 mm (5/8 in.)

15.88 mm (5/8 in.)

CAUTION

Install heat insulation around both the gas and liquid pipes. Failure to do so may cause water leaks.

Use heat insulation with heat resistance above 120 °C. Reverse cycle model only

In addition, if the humidity level at the installation location of the refrigerant piping is expected to exceed 70%, install heat insulation around the refrigerant piping. If the expected humidity level is 70-80%, use heat insulation that is 15 mm or thicker and if the expected humidity exceeds 80%, use heat insulation that is 20 mm or thicker.

If heat insulation is used that is not as thick as specifi ed, condensation may form on the surface of the insulation. In addition, use heat insulation with heat conductivity of

0.045 W/(m•K) or less (at 20 °C).

3.2. Additional materials required for installation

A. Refrigeration (armored) tape

B. Insulated staples or clamps for connecting wire (See your local electrical codes.)

C. Putty

D. Refrigeration lubricant

E. Clamps or saddles to secure refrigerant piping

4. ELECTRICAL REQUIREMENT

The indoor unit is powered from the outdoor unit or branch box. Do not power indoor unit from separate power source.

WARNING

Refer to local codes for acceptable cable type.

1 2

The following items are necessary to install this air conditioner. (The items are not included with the air conditioner and must be purchased separately.)

Name

Connection pipe assembly

Connection cable (4-conductor)

Wall pipe

Decorative tape

Vinyl tape

Wall cap

Q’ty

1

1

1

1

1

1

Name

Saddle

Drain hose

Tapping screws

Sealant

M10 bolt, nut

Q’ty

1 set

1

1 set

1

4 set

En-2

5. SELECTING THE MOUNTING POSITION

Decide the mounting position with the customer as follows:

(1) Install the indoor unit level on a strong wall which is not subject to vibration.

(2) The inlet and outlet ports should not be obstructed : the air should be able to blow all over the room.

(3) Install the unit a dedicated electrical branch circuit.

(4) Do not install the unit where it will be exposed to direct sunlight.

(5) Install the unit where connection to the outdoor unit or branch box is easy.

(6) Install the unit where the drain pipe can be easily installed.

(7) Take servicing, etc. into consideration and leave the spaces shown in [6.1. Installation dimensions]. Also install the unit where the fi lter can be removed.

Correct initial installation location is important because it is diffi cult to move unit after it is installed.

WARNING

Select installation locations that can properly support the weight of the indoor. Install the units securely so that they do not topple or fall.

6.2. Indoor unit piping direction

2

The piping can be connected in the 7 directions in the fi gure. When the piping is connected in direction 2, 3, 4 or 5, cut along the piping groove in the side of the front panel with a hacksaw.

Right outlet

(Rear)

5 Left outlet

7 Left rear outlet

3 Bottom outlet

1 Rear outlet

6 Center outlet

4 Left bottom outlet

CAUTION

Do not install the unit in the following areas:

• Area with high salt content, such as at the seaside. It will deteriorate metal parts, causing the parts to fail or the unit to leak water.

• Area fi lled with mineral oil or containing a large amount of splashed oil or steam, such as a kitchen.

It will deteriorate plastic parts, causing the parts to fail or the unit to leak water.

• Area that generates substances that adversely affect the equipment, such as sulfuric gas, chlorine gas, acid, or alkali.

It will cause the copper pipes and brazed joints to corrode, which can cause refrigerant leakage.

• Area that can cause combustible gas to leak, contains suspended carbon fi bers or fl ammable dust, or volatile infl ammables such as paint thinner or gasoline.

If gas leaks and settles around the unit, it can cause a fi re.

• Area where animals may urinate on the unit or ammonia may be generated.

Do not use the unit for special purposes, such as storing food, raising animals, growing plants, or preserving precision devices or art objects.

It can degrade the quality of the preserved or stored objects.

Do not install where there is the danger of combustible gas leakage.

Do not install the unit near a source of heat, steam, or fl ammable gas.

Install the unit where drainage does not cause any trouble.

Install the indoor unit, outdoor unit, branch box , power supply cable, transmission cable, and remote control cable at least 1 m away from a television or radio receivers.

The purpose of this is to prevent TV reception interference or radio noise. (Even if they are installed more than 1 m apart, you could still receive noise under some signal conditions.)

If children under 10 years old may approach the unit, take preventive measures so that they cannot reach the unit.

Install the indoor unit on the wall where the height from the fl oors more than 1800 mm.

6. INSTALLATION WORK

6.1. Installation dimensions

80 mm or over*

80 mm or over**

Wall hook bracket

120 mm or over**

6.3. Cutting the hole in the wall for the connecting piping

(1) Cut a 80 mm diameter hole in the wall at the position shown in the fi gure.

(2) When cutting the wall hole at the inside of the wall hook bracket, cut the hole to a point of intersection of center marks.

When cutting the wall hole at the outside of the wall hook bracket, cut the hole at a point of 10 mm below.

(3) Cut the hole so that the outside end is lower (5 to 10 mm) than the inside end.

(4) Always align the center of the wall hole. If misaligned, water leakage will occur.

(5) Cut the wall pipe to match the wall thickness, stick it into the wall cap, fasten the cap with vinyl tape, and stick the pipe through the hole.

(6) For left piping and right piping, cut the hole a little lower so that drain water will fl ow freely.

Wall hook bracket Centering marks

10 mm or more lower 80 mm hole 10 mm or more lower

Fasten with vinyl tape

5 to 10 mm

Wall cap*

Wall pipe*

(Inside) Wall (Outside)

*Field supplied

WARNING

If the wall pipe is not used, the cable interconnecting the indoor unit(s) and outdoor unit or branch box may touch metal and cause electric discharge.

6.4. Installing the wall hook bracket

(1) Install the wall hook bracket so that it is correctly positioned horizontally and vertically.

If the wall hook bracket is tiled, water will drip to the fl oor.

(2) Install the wall hook bracket so that it is strong enough to support the weight of the unit.

● Fasten the wall hook bracket to the wall with 6 or more screws through the holes near the outer edge of the bracket.

● Check that there is no rattle at the wall hook bracket.

1500 mm or over

Remote controller

1800 mm or over

(Wall cap)

* The distance between the wall hook bracket and the ceiling should be

80 mm or more.

** The side next to the sidewall must follow the size indicated in fi gure.

Remote controller holder

Tapping screw (small)

Wall hook bracket Tapping screw

(size: large; quantity: 8)

CAUTION

Install the wall hook bracket level, both horizontally and vertically.

En-3

6.5. Forming the drain hose and pipe

[Rear piping, Right piping, Bottom piping]

• Install the indoor unit piping in the direction of the wall hole and bind the drain hose and pipe together with vinyl tape.

• Install the piping so that the drain hose is at the bottom.

• Wrap the pipes of the indoor unit that are visible from the outside with decorative tape.

[For Left rear piping, Left piping]

Interchange the drain cap and the drain hose.

CAUTION

Insert drain hose and drain cap securely. Drain should slope down to avoid water leakage.

When inserting, be sure not to attach any material besides water. If any other material is attached, it will cause deterioration and water leakage.

After removing drain hose, be sure not to forget mounting drain cap.

Be sure to fi x the drain hose with tape to the bottom of piping.

Prevent drain water freezing under low temperature environment.

When installing indoor unit’s drain hose outdoors, necessary measure for frost protection should be taken to prevent drain water freezing.

Under low temperature environment (when outdoor temperature under 0 °C), after cooling operation is executed, water in the drain hose could be frozen. Once drain water is frozen, the drain hose will be blocked and water leakage may result at the indoor unit.

Wall hook bracket

Connection piping

Alignment marks

Small piping

Large piping

Top hooks

Wall hook bracket

Indoor unit

(Fitting) Bottom hooks

After hooking the indoor unit to the top hook, hook the fi ttings of the indoor unit to the 2 bottom hooks while lowering the unit and pushing it against the wall.

Right piping

Bottom piping

Bind with vinyl tape

Pipe (top)

Rear piping

Indoor unit drain hose

(bottom)

Indoor unit drain hose

For left outlet piping, cut off the piping outlet cutting groove with a hacksaw.

Drain cap

Remove the drain cap by pulling at the projection at the end of the cap with pliers, etc.

CAUTION

Insert the drain hose and drain cap into the drain port, making sure that it comes in contact with the back of the drain port, and then mount it. If the drain hose is not connected properly, leaking will occur.

• Attach the Drain hose insulation to the drain hose.

6.6. Flare connection (Pipe connection)

WARNING

Tighten the fl are nuts with a torque wrench using the specifi ed tightening method.

Otherwise, the fl are nuts could break after a prolonged period, causing refrigerant to leak and generate hazardous gas if the refrigerant comes into contact with a fl ame.

6.6.1. Flaring

Use special pipe cutter and fl are tool exclusive for R410A.

(1) Cut the connection pipe to the necessary length with a pipe cutter.

(2) Hold the pipe downward so that cuttings will not enter the pipe and remove any burrs.

(3) Insert the fl are nut (always use the fl are nut attached to the indoor unit(s) and outdoor unit or branch box respectively) onto the pipe and perform the fl are processing with a fl are tool. Use the special R410A fl are tool, or the conventional fl are tool. Leakage of refrigerant may result if other fl are nuts are used.

(4) Protect the pipes by pinching them or with tape to prevent dust, dirt, or water from entering the pipes.

Check if [L] is flared uniformly and is not cracked or scratched.

Die

Pipe

L

Drain hose insulation

Drain hose

• For left piping and left rear piping, align the marks on the wall hook bracket and shape the connection pipe.

• Bend the connection piping at the bend radius of 100 mm or more and install no more than 35 mm from the wall.

• After passing the indoor piping and drain hose through the wall hole, hang the indoor unit on the hooks at the top and bottom of the wall hook bracket.

[Installing the indoor unit]

• Hang the indoor unit from the hooks at the top of the wall hook bracket.

• Insert the spacer, etc. between the indoor unit and the wall hook bracket and separate the bottom of the indoor unit from the wall.

Indoor unit

(Spacer)

Wall hook bracket

Pipe outside diameter

[mm (in.)]

Dimension A [mm]

Flare tool for R410A, clutch type

Dimension B

0

0.4

[mm]

6.35 (1/4)

9.52 (3/8)

12.70 (1/2)

15.88 (5/8)

19.05 (3/4)

0 to 0.5

9.1

13.2

16.6

19.7

24.0

When using conventional fl are tools to fl are R410A pipes, the dimension A should be approximately 0.5 mm more than indicated in the table (for fl aring with R410A fl are tools) to achieve the specifi ed fl aring. Use a thickness gauge to measure the dimension A.

Pipe outside diameter [mm (in.)]

6.35 (1/4)

9.52 (3/8)

12.70 (1/2)

15.88 (5/8)

19.05 (3/4)

Width across flats of Flare nut [mm]

17

22

26

29

36

En-4

6.6.2. Bending pipes

• If pipes are shaped by hand, be careful not to collapse them.

• Do not bend the pipes in an angle more than 90°.

• When pipes are repeatedly bend or stretched, the material will harden, making it diffi cult to bend or stretch them any more.

• Do not bend or stretch the pipes more than 3 times.

CAUTION

To prevent breaking of the pipe, avoid sharp bends.

If the pipe is bent repeatedly at the same place, it will break.

6.6.3. Pipe connection

CAUTION

Be sure to Install the pipe against the port on the indoor unit correctly. If the centering is improper, the fl are nut cannot tighten smoothly. If the fl are nut is forced to turn, the threads will be damaged.

Do not remove the flare nut from the indoor unit pipe until immediately before connecting the connection pipe.

Hold the torque wrench at its grip, keeping it in the right angle with the pipe, in order to tighten the fl are nut correctly.

Tighten the fl are nuts with a torque wrench using the specifi ed tightening method.

Otherwise, the fl are nuts could break after a prolonged period, causing refrigerant to leak and generate hazardous gas if the refrigerant comes into contact with a fl ame.

Connect the piping so that the control box cover can easily be removed for servicing when necessary.

In order to prevent water from leaking into the control box, make sure that the piping is well insulated.

When the fl are nut is tightened properly by your hand, hold the body side coupling with a wrench, then tighten with a torque wrench. (See the table below for the fl are nut tightening torques.)

Tighten with two wrenches.

Wrench (fi xed)

Torque wrench

Flare nut

Indoor unit pipe

(Body side)

Connection pipe

7.2. Indoor unit wiring

(1) Remove the cable clamp.

(2) Bend the end of the connection cable as shown in the fi gure.

(3) Connect the end of the connection cable fully inserting into the terminal block.

(4) Fasten the connection cable with a cable clamp.

Earth (Ground) wire

Cable clamp

(There is a terminal block inside.)

Screw

1 2 3 4

Connection cable

Cable clamp

Tab

Connection cable

Screw

Square hole

Insert the tab into the square hole of the indoor unit and fasten with a screw.

7.3. How to connect wiring to the terminals

Caution when wiring cable

When stripping off the insulation of a lead wire, always use a special tool such as a wire stripper. If there is no special tool available, carefully strip the insulation with a knife etc.

(1) Use crimp-type terminals with insulating sleeves as shown in the fi gure below to connect to the terminal block.

(2) Securely clamp the crimp-type terminals to the wires using an appropriate tool so that the wires do not come loose.

Strip : 10 mm Crimp-type terminal

Sleeve

Flare nut [mm (in.)]

6.35 (1/4) dia.

9.52 (3/8) dia.

12.70 (1/2) dia.

15.88 (5/8) dia.

19.05 (3/4) dia.

Tightening torque [N·m (kgf·cm)]

16 to 18 (160 to 180)

32 to 42 (320 to 420)

49 to 61 (490 to 610)

63 to 75 (630 to 750)

90 to 110 (900 to 1,100)

7. ELECTRICAL WIRING

Cable

Connection cable

Cable size (mm 2 )

1.5

Type Remarks

Type 60245 IEC57 3Cable+Earth (Ground), 1φ230V

Max. Cable Length: Limit voltage drop to less than 2%. Increase cable gauge if voltage drop is 2% or more.

7.1. Wiring system diagram

INDOOR UNIT

TERMINAL

Type 60245 IEC57

Cable size 1.5 mm 2

(Inter-unit) Power lines

Power line

OUTDOOR UNIT or BRANCH BOX

Control line

Earthing (Grounding) line

Please connect it to the specifi ed terminal.

CAUTION

Every wire must be connected fi rmly.

No wire should be allowed to touch refrigerant tubing, the compressor or any moving part.

Loose wiring may cause the terminal to overheat or result in unit malfunction. A fi re hazard may also exist. Therefore, be sure all wiring is tightly connected.

Connect wires to the matching numbers of terminals.

En-5

(3) Use the specifi ed wires, connect them securely, and fasten them so that there is no stress placed on the terminals.

(4) Use an appropriate screwdriver to tighten the terminal screws. Do not use a screwdriver that is too small, otherwise, the screw heads may be damaged and prevent the screws from being properly tightened.

(5) Do not tighten the terminal screws too much, otherwise, the screws may break.

Wire

Screw with special washer

Crimp-type terminal

Terminal blocks

Wire

Screw with special washer

Crimp-type terminal

(6) See the table for the terminal screw tightening torques.

Tightening torque [N·m (kgf·cm)]

M4 screw 1.2 to 1.8 (12 to 18)

CAUTION

Match the terminal block numbers and connection cable colors with those of the outdoor unit or branch box.

Erroneous wiring may cause burning of the electric parts.

Connect the connection cables fi rmly to the terminal block. Imperfect installation may cause a fi re.

Always fasten the outside covering of the connection cable with the cable clamp.

(If the insulator is chafed, electric discharge may occur.)

Always connect the earth (ground) wire.

Do not use the earth (ground) screw of the indoor unit for the connection other than a specifi ed outdoor unit or branch box.

8. FINISHING

(1) Insulate between pipes.

● Insulate suction and discharge pipes separately.

● For rear, right, and bottom piping, overlap the connection pipe heat insulation and indoor unit pipe heat insulation and bind them with vinyl tape so that there is no gap.

● For left and left rear piping, butt the connection pipe heat insulation and indoor unit pipe heat insulation together and bind them with and vinyl tape so that there is no gap.

● For left and left rear piping, wrap the area which accommodates the rear piping housing section with cloth tape.

● For left and left rear piping, bind the connection cable to the top of the pipe with vinyl tape.

● For left and left rear piping, bundle the piping and drain hose together by wrapping them with cloth tape over the range within which they fi t into the rear piping housing section.

(2) Temporarily fasten the connection cable along the connection pipe with vinyl tape.

(Wrap to about 1/3 the width of the tape from the bottom of the pipe so that water does not enter.)

(3) Fasten the connection pipe to the outside wall with saddles, etc.

(4) Fill the gap between the outside wall pipe hole and the pipe with sealer so that rain water and wind cannot blow in.

(5) Fasten the drain hose to the outside wall, etc.

Saddle*

Outside wall cap*

Sealer putty*

Pipe

Wall

(Outdoors)

*Field supplied

Overlap the insulation

Connection pipe

(heat insulation)

Bind the pipes together so that there is no gap.

Vinyl tape

Indoor unit pipe

(heat insulation)

Left piping

Connection cable

Pipe

Pipe

Drain hose Cloth tape

Wrap with cloth tape

Drain hose

For connection from the left rear

Wall pipe Connection cable

Connection pipe

Drain hose

Check the following:

GOOD Drain hose

Saddle

NO GOOD NO GOOD NO GOOD

Lifted up Wave End in water

9. FRONT PANEL REMOVAL AND INSTALLATION

9.1. Intake grill removal

(1) Open the intake grille.

(2) Pull down the knob.

(3) Lift the intake grille upward, until the axle at the top of the intake grille is removed.

9.2. Intake grill installation

(1) The fi xing axle of the intake grille is installed on the Panel.

(2) Lay down the intake grille.

9.3. Front panel removal

(1) Remove intake grille (Reference the intake grille removal.)

(2) Remove the 6 screws.

(3) The thumb is hung on the lower part as shown in the fi gure, and it pulls to the front, pushing [▲] mark , and bottom hooks (2 positions) is removed from wall hook bracket.

(4) The front panel is pulled to the front, raising the upper surface, and a front panel is removed.

9.4. Front panel installation

(1) First, fi t the lower part of the front panel, and insert top and bottom hooks. (Three top sides)

(2) Attach the 6 screws.

(3) Attach the intake grille.

Intake grille

Mounting shaft

Bearing

Front panel

Intake grille

Knob

Screws

(6 position)

Front panel

Wall hook bracket

Push

Push

Top holes (two sides)

Top hole (center)

[▲] mark

Indoor unit

Front panel

Top hook (center)

Front panel

Top hooks (two sides)

CAUTION

Install the front panel and INTAKE GRILLE securely. If installation is imperfect, the front panel or INTAKE GRILLE may fall off and cause injury.

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10. TEST RUN

WARNING

Do not turn on the power until all installation work is complete.

CAUTION

When restarting after a long period of disuse in the winter, turn the power switch on at least

12 hours before starting the unit.

Check items

(1) Is operation of each button on the remote controller normal?

(2) Does each lamp light normally?

(3) Do air fl ow direction louvers operate normally?

(4) Is the drain normal?

(5) Do not have an error noise and vibration during operation?

● Do not operate the air conditioner in test run for a long time.

[Operation method]

● For the operation method, refer to the operating manual.

● The outdoor unit may not operate depending on the room temperature. In this case, press the test run button on the remote controller while the air conditioner is running. (Point the transmitter section of the remote controller toward the air conditioner and press the test run button with the tip of a ballpoint pen, etc.)

● To end test operation, press the remote controller

START/STOP button. (When the air conditioner is running by pressing the test run button, the

OPERATION Lamp and TIMER Lamp will simultaneously fl ash slowly.)

Transmitter section

Test run button

[Using the wired remote control] (Option)

● For the operation method, refer to the operating manual.

(1) Stop the air conditioner operation.

(2) Press the master control button and the fan control button simultaneously for 2 seconds or more to start the test run.

(3) Press the start/stop button to stop the test run.

Test run display

11. REMOTE CONTROLLER INSTALLATION

CAUTION

Check that the indoor unit correctly receives the signal from the remote controller, then install the remote controller holder.

Select the remote controller holder selection site by paying careful attention to the following:

Avoid places in direct sunlight.

Select a place that will not be affected by the heat from a stove, etc.

11.1.

Remote controller holder installation

• Install the remote controller a maximum distance of 7 m from the remote control receiver. However, when installing the remote controller, check that it operates correctly.

• Install the remote controller holder to a wall, pillar, etc. with the tapping screw.

Remote controller holder fi xing

Remote controller mounting

(1) Set

Remote controller holder

(2) Push

Tapping screw

(M3 x 12 mm) Remote controller

12. OPTIONAL KIT INSTALLATION (OPTION)

This air conditioner can be connected with the following optional kits. Refer to each installation manual for the method of installing parts.

• Wired remote controller

• Simple remote controller

• External connect kit

12.1. Before install optional remote controller

• When you use optional remote controller, some functions may not be used.

• Please use the recommended optional remote controller.

CAUTION

Before installing, be sure to disconnect all power supply.

Don’t touch the heat exchanger.

During installing or removing operation, be sure not to have wire caught by parts or draw it hard. Or it may result troubles to the air-conditioner.

Avoid place in direct sunlight.

Select place that will not be affected by the heat from a stove, etc.

Before setting up the optional kit, please confi rm whether air-conditioner can receive the signal.

Do not connect the optional remote controller to the terminal for power supply.

When connecting the optional remote controller with the indoor unit, please use the connecting cable packaged up with the optional remote controller.

Recommended cable length of optional remote controller is 10 m. Make sure to do insulate of connecting part when extended the cable.

12.2. Remote controller cable modifi cation

(1) Use a tool to cut off the terminal on the end of the remote controller cable, and then remove the insulation from the cut end of the cable.

(2) Connect the remote controller cable and connecting cable. (Supplied with wired remote controller)

Important: Be sure to solder wires to connect. Be sure to insulate the connection between the wires.

Connecting cable

Remote controller cable Red

Remote controller cable

White

White

Red

Black

Black

Insulated connection

12.3. External input / output Wire modifi cation

(1) Remove insulation from wire attached to wire kit connector. Remove insulation from fi eld supplied cable. Use crimp type insulated butt connector to join fi eld cable and wire kit wire.

(2) Connect the wire and Field supply wire.

(Supplied with external connect kit)

Important:

Be sure to solder wires to connect. Be sure to insulate the connection between the wires.

Option parts

External input/ output wire

Insulated connection

Cable

(Field supply)

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removal

(1) Refer to “FRONT PANEL REMOVAL AND INSTALLATION” to remove the front panel.

(2) Remove the screw then remove the control box cover.

(3) Remove the display case and connector.

connector control box cover screw display case

12.5. Connecting cable to control board connector

(1) Pass the cable from the hole in the back of indoor unit.

(2) Connect the cable to the control board connector.

(3) Hook the cable to the rib.

hole connect the wire

PCB

CN16

CN14

13. FUNCTION SETTING

Perform the “FUNCTION SETTING” according to the installation conditions using the remote controller.

CAUTION

Confi rm whether the wiring work for Outdoor unit or Branch box has been fi nished.

Confi rm that the cover for the electrical enclosure on the outdoor unit is in place.

the installation conditions. Incorrect settings can cause the indoor unit to malfunction.

• After the power is turned on, perform the “FUNCTION SETTING” according to the installation conditions using the remote controller.

• The settings may be selected between the following two: Function Number or Setting

Value.

• Settings will not be changed if invalid numbers or setting values are selected.

• Refer to the installation manual enclosed with the remote controller when the wired remote controller (option) is used.

Entering the Function Setting Mode

While pressing the FAN button and SET TEMP. ( ) simultaneously, press the RESET button to enter the function setting mode.

STEP 1

Selecting the Remote Controller Signal Code

Use the following steps to select the signal code of the remote controller. (Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code.)

The signal codes that are set through this process are applicable only to the signals in the FUNCTION SETTING. For details on how to set the signal codes through the normal process, refer to Remote controller signal code.

(1) Press SET TEMP. ( ) ( ) button to change the signal code between . Match the code on the display to the air conditioner signal code. (Initially set to ) (If the signal code does not need to be selected, press the MODE button and proceed to STEP 2.)

(2) Press the TIMER MODE button and check that the indoor unit can receive signals at the displayed signal code.

(3) Press the MODE button to accept the signal code, and proceed to STEP 2.

CN6

Rib

Option type

Wired remote controller

Simple remote controller

External input

External output

Connector

No.

CN6

CN14

CN16

(4) Use cable clamper and screw to fasten the cable of wired remote controller.

cable clamper screw cable of wired remote controller

(5) Fix the binder clamp with the screw and bind the wire of external kit with the binder.

screw binder clamp binder external connect wire

installation

Install front panel, control box cover and display case by the reverse procedures as stated in 12.4 Front panel, control box cover and display case removal.

The air conditioner signal code is set to A prior to shipment. Contact your retailer to change the signal code.

(

The remote controller resets to signal code A when the batteries in the remote controller are replaced. If you use a signal code other than signal code A, reset the signal code after replacing the batteries.

If you do not know the air conditioner signal code setting, try each of the signal codes

) until you fi nd the code which operates the air conditioner.

STEP 2

Selecting the Function Number and Setting Value

(1) Press the SET TEMP. ( ) ( ) buttons to select the function number. (Press the

MODE button to switch between the left and right digits.)

(2) Press the FAN button to proceed to setting the value. (Press the FAN button again to return to the function number selection.)

(3) Press the SET TEMP. ( ) ( ) buttons to select the setting value. (Press the MODE button to switch between the left and right digits.)

(4) Press the TIMER MODE button, and START/

STOP button, in the order listed to confi rm the settings.

Function number

Setting value

(5) Press the RESET button to cancel the function setting mode.

(6) After completing the FUNCTION SETTING, be sure to turn off the power and turn it on again.

CAUTION

After turning off the power, wait 10 seconds or more before turning on it again.

The Function Setting does not become active unless the power is turned off then on again.

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Filter Sign

The indoor unit has a sign to inform the user that it is time to clean the fi lter. Select the time setting for the fi lter sign display interval in the table below according to the amount of dust or debris in the room. If you do not wish the fi lter sign to be displayed, select the setting value for “No indication”.

(♦... Factory setting)

Setting Description

Standard (400 hours)

Long interval (1,000 hours)

Short interval (200 hours)

♦ No indication

Function Number Setting Value

00

11

01

02

03

Cooling Room Temperature Correction

Depending on the installed environment, the room temperature sensor may require a correction.

The settings may be selected as shown in the table below.

(♦... Factory setting)

Setting Description

♦ Standard

Slightly lower control

Lower control

Warmer control

Function Number Setting Value

00

30

01

02

03

Heating Room Temperature Correction

Depending on the installed environment, the room temperature sensor may require a correction.

The settings may be changed as shown in the table below.

(♦... Factory setting)

Setting Description

♦ Standard

Lower control

Slightly warmer control

Warmer control

Function Number Setting Value

31

00

01

02

03

Auto Restart

Enable or disable automatic system restart after a power outage.

Setting Description

♦ Yes

No

(♦... Factory setting)

Function Number Setting Value

00

40

01

* Auto restart is an emergency function such as for power failure etc. Do not start and stop the indoor unit by this function in normal operation. Be sure to operate by the control unit, or external input device.

Indoor room temperature sensor switching function

(Only for Wired remote controller)

The following settings are needed when using the Wired remote controller temperature sensor.

(♦... Factory setting)

Setting Description

♦ No

Yes

Function Number Setting Value

00

42

01

* If setting value is “00” :

Room temperature is controlled by the indoor unit temperature sensor.

* If setting value is “01” :

Room temperature is controlled by either indoor unit temperature sensor or remote controller sensor.

Remote controller signal code

Change the indoor unit Signal Code, depending on the remote controllers.

(♦... Factory setting)

Setting Description

♦ A

B

C

D

Function Number

44

Setting Value

00

01

02

03

External input control

“Operation/Stop” mode or “Forced stop” mode can be elected.

Setting Description

♦ Operation/Stop mode

(Setting forbidden)

Forced stop mode

Function Number

46

(♦... Factory setting)

Setting Value

00

01

02

Setting record

Record any changes to the settings in the following table.

Setting Description

Filter sign

Cooling room temperature correction

Heating room temperature correction

Auto restart

Indoor room temperature sensor switching function

Remote controller signal code

External input control

Setting Value

After completing the FUNCTION SETTING, be sure to turn off the power and turn it on again.

Selecting the remote controller signal code

When 2 or more air conditioners are installed in a room and the remote controller is operating an air conditioner other than the one you wish to set, change the signal code of the remote controller to operate only the air conditioner you wish to set (four selections possible).

When two or more air conditioners are installed in a room, please contact your retailer to set the individual air conditioner signal codes.

• Confi rm the setting of the remote controller signal code and the function setting. If these are not confi rmed, the remote controller cannot be used to operate for the air conditioner.

Selecting the Remote Controller Signal Code

Use the following steps to select the signal code of the remote controller. (Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code.)

(1) Press the START/STOP button until only the clock is displayed on the remote controller display.

(2) Press the MODE button for at least 5 seconds to display the current signal code (initially set to ).

(3) Press SET TEMP. ( ) ( ) button to change the signal code between . Match the code on the display to the air conditioner signal code.

(4) Press the MODE button again to return to the clock display. The signal code will be changed.

If no buttons are pressed within 30 seconds after the signal code is displayed, the system returns to the original clock display. In this case, start again from step 1.

The air conditioner signal code is set to A prior to shipment.

Contact your retailer to change the signal code.

(

The remote controller resets to signal code A when the batteries in the remote controller are replaced. If you use a signal code other than signal code A, reset the signal code after replacing the batteries.

If you do not know the air conditioner signal code setting, try each of the signal codes

) until you fi nd the code which operates the air conditioner.

14. CUSTOMER GUIDANCE

Explain the following to the customer in accordance with the operating manual:

(1) Starting and stopping method, operation switching, temperature adjustment, timer, air fl ow switching, and other remote control unit operations.

(2) Air fi lter removal and cleaning, and how to use the air louvers.

(3) Give the operating manual to the customer.

(4) If the signal code is changed, explain to the customer how it changed (the system returns to signal code A when the batteries in the remote controller are replaced).

*(4) is applicable to using wireless remote controller.

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15. ERROR CODES

If you use a wireless remote controller, the lamp on the photo detector unit will output error codes by way of blinking patterns. If you use a wired remote controller, error codes will appear on the remote controller display. See the lamp blinking patterns and error codes in the table. An error display is displayed only during operation.

Error display

OPERATION lamp

(green)

TIMER lamp

(orange)

ECONOMY lamp

(green)

Wired remote controller

Error code

Description

●

(1)

●

(1) ◊

Serial communication error

●

●

(1)

(1)

●

●

(2)

(5)

◊

◊

Wired remote controller communication error

Check run unfi nished

●

●

(2)

(2)

●

●

(1)

(2)

◊

◊

Unit number or Refrigerant circuit address setting error

[Simultaneous Multi]

Indoor unit capacity error

●

(2)

●

(3) ◊

Combination error

●

●

●

●

(2)

(2)

(3)

(3)

●

●

●

●

(4)

(7)

(2)

(5)

◊

◊

◊

◊

• Connection unit number error (indoor secondary unit)

[Simultaneous Multi]

• Connection unit number error

(indoor unit or branch unit)

[Flexible Multi]

Primary unit, secondary unit set-up error [Simultaneous Multi]

Indoor unit PCB model information error

Manual auto switch error

●

(4)

●

(1) ◊

Inlet air temp. sensor error

●

●

(4)

(5)

●

●

(2)

(1)

◊

◊

Indoor unit Heat Ex. Middle temp. sensor error

Indoor unit fan motor error

●

(5)

●

(3) ◊

Drain pump error

●

(5)

●

(7) ◊

Damper error

●

(5)

●

(15) ◊

Indoor unit error

●

●

(6)

(6)

●

●

(2)

(3)

◊

◊

Outdoor unit main PCB model information error or communication error

Inverter error

●

●

(6)

(6)

●

●

(4)

(5)

◊

◊

Active fi lter error, PFC circuit error

Trip terminal L error

●

●

(6)

(7)

●

●

(10)

(1)

◊

◊

Display PCB microcomputers communication error

Discharge temp. sensor error

●

(7)

●

(2) ◊

Compressor temp. sensor error

●

●

(7)

(7)

●

●

(3)

(4)

◊

◊

Outdoor unit Heat Ex. liquid temp. sensor error

Outdoor temp. sensor error

●

(7)

●

(5) ◊

Suction Gas temp. sensor error

●

●

(7)

(7)

●

●

(6)

(7)

◊

◊

• 2-way valve temp. sensor error

• 3-way valve temp. sensor error

Heat sink temp. sensor error

●

●

(8)

(8)

●

●

(2)

(3)

◊

◊

• Sub-cool Heat Ex. gas inlet temp. sensor error

• Sub-cool Heat Ex. gas outlet temp. sensor error

Liquid pipe temp. sensor error

●

●

(8)

(8)

●

(6) ◊

●

(9)

●

(9)

●

(9)

●

(9)

●

(10)

●

(10)

●

(10)

●

(10)

●

●

●

●

●

●

●

●

(4)

(5)

(7)

(9)

(1)

(3)

(4)

(5)

◊

◊

◊

◊

◊

◊

◊

◊

●

(13)

●

(2) ◊

Display mode ● : 0.5s ON / 0.5s OFF

◊ : 0.1s ON / 0.1s OFF

( ) : Number of fl ashing

Current sensor error

• Discharge pressure sensor error

• Suction pressure sensor error

• High pressure switch error

Trip detection

Compressor rotor position detection error (permanent stop)

Outdoor unit fan motor error

4-way valve error

Discharge temp. error

Compressor temp. error

High pressure error

Low pressure error

Branch boxes error

[Flexible Multi]

OPERATION

TIMER

ECONOMY

OPERATION lamp (green)

TIMER lamp (orange)

ECONOMY lamp (green)

[Troubleshooting with the Wired Remote Controller Display (Option)]

If an error occurs, the following display will be shown. (“Er” will appear in the set room temperature display.)

Error code

●

(4) ◊

[Troubleshooting with the indoor unit display]

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