CEILING CASSETTE TYPE AIR CONDITIONERS

INSTALLATION INSTRUCTIONS

• Please read this instruction sheet completely before installing the product.

• When the power cord is damaged, replacement work should be performed by authorized personnel only.

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

Indoor Unit

Anti-bacteria filter

Air

Intake

Outdoor Unit

Air Intake

(side, rear)

Air Outlet

Air Outlet

Air Intake

(side, rear)

Control cover

Connecting wire

Connection Piping

Drain hose

Air Outlet

48K/54K

Air Intake

(side, rear)

Air Outlet

Vents

48K

Connecting Wire

Power Wire

Connection Tube

Drain Hose

36K

Control cover

Connecting wire

Connection Piping

Drain hose

Cooling & Heating Model has included Drain Elbow

18K/24K

P/No. : 3828A20110C

OUT-LINE OF INSTALLATION

1.The following should be always observed for safety ...............................3

2.Installation of Indoor, Outdoor Unit............................................................4

Installation Works

Installation Parts

Required Tools

1) Selection of the best location ......................4

2) Ceiling opening dimensions and hanging bolt location(unit: mm).................................5

3) The Indoor Unit Installation .........................6

4) Remote Controller Installation ....................6

5) Wiring Connection.......................................8

ELECTRICAL WIRING................................9

CONNECTING THE CABLE TO OUTDOOR UNIT ......9

6) Connecting Pipes to the Indoor Unit .........10

PIPING CONNECTION.............................11

7) Installation of Decorative Panel.................12

8) Indoor Unit Drain Piping ............................13

HEAT INSULATION...................................14

FORM THE PIPINGS................................14

• Connecting cable

• Pipes: Gas side

Liquid side

• Hanging Bolt

(W 3/8 or M10 length

650mm)

• Insulated drain hose

• Additional Drain hose

(Inner Dia.............32mm)

• Level

• Screw driver

• Electric drill

• Hole core drill (ø70mm)

• Flaring Tools set

• Torque Wrenches

• Hexagonal Wrench

(4mm, 5mm)

• Gas-leak detector

3. Test running ..............................................................................................15

1) PRECAUTIONS IN TEST RUN.................15

CHECK THE FOLLOWING ITEMS WHEN

INSTALLATION IS COMPLETE ................15

2) Connection of power supply......................16

3) Evaluation of the performance ..................16

• Owner’s Manual

• Thermometer

4. Auxiliary operation ...................................................................................17

1) Two thermistor system ..............................17

2) Ajusting to the height of ceiling .................18

3) Group control (optional wiring)..................19

4) Central control (optional)...........................20

2

1. The following should be always observed for safety

• Be sure to read "THE FOLLOWING SHOULD BE ALWAYS OBSERVED FOR SAFETY" before installing the air conditioner.

• Be sure to observe the cautions specified here as they include important items related to safety.

• The indications and meanings are as follows.

WARNING

CAUTION

Could lead to death, serious injury, etc.

Could lead to serious injury in particular environments when operated incorrectly.

• After reading this manual, be sure to keep it together with the instruction manual in a handy place .

WARNING

Do not install it yourself (customer).

• Incomplete installation could cause injury due to fire, electric shock, the unit falling or a leakage of water. Consult the dealer from whom you purchased the unit or special installer.

Install the unit securely in a place which can bear the weight of the unit.

• When installed in an insufficient strong place, the unit may fall and result in serious problem.

Use the specified wires to connect the indoor and the outdoor units securely and attach the wires firmly to the terminal board connecting sections so the stress of the wires is not applied to the sections.

• Incomplete connecting and fixing could cause fire.

Check that the refrigerant gas do not leak after installation is completed.

Perform the installation securely referring to the installation manual.

• Incomplete installation could cause a personal injury due to fire, electric shock, the unit falling or a leakage of water.

Perform electrical work according to the installation manual and be sure to use an exclusive circuit.

• If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock.

Attach the electrical part cover to the indoor unit and the service panel to the outdoor unit securely.

• Not being attached securely, it may cause electric problem or electric shock due to dust or water etc.

Be sure to use the part provided or specified parts for the installation work.

• The use of defective parts could cause an injury or leakage of water due to a fire, electric shock, the unit falling, etc.

Perform grounding

• Do not connect the ground wire to a gas pipe, water pipe arrester or telephone ground wire. Defective grounding could cause an electric shock.

CAUTION

Perform the drainage/piping work securely according to the installation manual.

• If there is a defect in the drainage/piping work, water could drop from the unit and household goods could be wet and damaged.

Do not install the unit in a place where an inflammable gas leaks.

• If gas leaks and accumulates in the area surrounding the unit, it could cause an explosion.

3

2. Installation of Indoor, Outdoor Unit

1. Selection of the best location

1) Indoor unit

• There should not be any heat source or steam near the unit.

• There should not be any obstacles to prevent the air circulation.

• A place where air circulation in the room will be good.

• A place where drainage can be easily obtained.

• A place where noise prevention is taken into consideration.

• Do not install the unit near the door way.

• Ensure the spaces indicated by arrows from the wall, ceiling, or other obstacles.

• The indoor unit must keep the maintenance space.

Ceiling

Ceiling Board

50 or more

Floor

Ceiling Board

50 or more

Unit:cm

2) Outdoor unit

• If an awning is built over the unit to prevent direct sunlight or rain exposure, be careful that heat radiation from the condenser is not restricted.

• There should not be any animals or plants which could be affected by hot air discharged.

• Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles.

More than

30cm

Fence or obstacles

Sunr oof

More than 50cm

More than 70cm

3) Piping length and the elevation

CAPACITY

Pipe Size

GAS LIQUID

Length

Rated

(m)

Max.

Elevation (m)

Rated Max.

* Additional refrigerant

(g/m)

18K Btu/h

24K Btu/h

5/8" 1/4"

5/8" 1/4"

36K Btu/h 5/8" 3/8"

48K Btu/h 3/4" 3/8"

54K Btu/h 3/4" 1/2"

7.5

7.5

7.5

7.5

7.5

50

50

50

50

50

5

5

5

5

5

30

30

30

30

30

25

30

60

60

70

• Rated performance for refrigerant line length of: 7.5m

• If 18K Model is installed at a distance of 15m, 187.5g of refrigerant should be added ..................................................................(15-7.5)x25g

Indoor unit

B

A

Outdoor unit

4

2. Ceiling opening dimensions and hanging bolt location

• The dimensions of the paper model for installing are the same as those of the ceiling opening dimensions.

39.5

600 (Ceiling opening)

521(Hanging bolt)

39.5

570 Unit size

Ceiling

Level gauge

(18K/24K) Unit:mm

CAUTION

• This air-conditioner uses a drain pump.

• Horizontly install the unit using a level gauge.

• During the installation, care should be taken not to damage electric wires.

Ceiling board

• Select and mark the position for fixing bolts and piping hole.

• Decide the position for fixing bolts slightly tilted to the drain direction after considering the direction of drain hose.

• Drill the hole for anchor bolt on the wall.

NOTE:

• Avoid the following installatation location.

1. Such places as restaurants and kitchen where considerable amount of oil steam and flour is generated.

These may cause heat exchange efficiency reduction, or water drops, drain pump mal-function.

In these cases, take the following actions;

• Make sure that ventilation fan is enough to cover all noxious gases from this place.

• Ensure the enough distance from cooking room to install the air conditioner in such a place where it may not suck oily steam.

Air conditioner

Take enough distance

Use the ventilation fan for smoke-collecting hood with sufficient capacity.

Cooking table

2. Avoid installng air conditioner in such circumstances where cooking oil or iron powder is generated.

3. Avoid places where inflammable gas is generated.

4. Avoid place where noxious gas is generated.

5. Avoid places near high frequency generators.

5

3. The Indoor Unit Installation

Ceiling

Hanging bolt

(W3/8 or M10)

Nut

(W3/8 or M10)

Spring washer

(M10)

Keep the length of the bolt from the bracket to 40mm

Flat washer for M10

(accessory)

Ceiling board

Air Conditioner body

Ceiling board

• The following parts is option.

Hanging Bolt - W 3/8 or M10

Nut - W 3/8 or M10

Spring Washer - M10

Plate Washer - M10

Flat washer for M10

(accessory)

Nut

(W3/8 or M10)

Paper model for installation

Adjust the same height

Set screw of paper model (4 pieces)

Open the ceiling board along the outer edge of the paper model

• Drill the piping hole on the wall slightly tilted to the outdoor side using a Ø 70 hole-core drill.

Wall

Indoor Outdoor

CAUTION

• Tighten the nut and bolt to prevent unit falling.

4. Remote Controller Installation

• Although the room temperature sensor is in the indoor unit, the remote controller should be installed in such places away from direct sunlight and high humidity.

Installation of the remote controller

• Select places that are not splashed with water.

• Select control position after receiving customer approval.

• The room temperature sensor is built in the indoor unit.

• This remote controller equipped with liquid crystal display. If this position is higher or lower, display is difficult to see.(The standard height is 1.2 ~ 1.5m high)

Routing of the remote controller cord

• Keep the remote controller cord away from the refrigerant piping and the drain piping.

• To protect the remote controller cord from electrical noise, place the cord at least 5cm away from other power cables (audio equipment, television set, etc.)

• If the remote controller cord is secured to the wall, provide a trap at the top of the cord to prevent water droplets from running.

6

WIRED REMOTE CONTROL INSTALLATION

DISASSEMBLING

Front case

• Separate the under plate from Remote control box.

The lo wer par t

Lever carefully the box open using a screw driver, etc.

Remote control box body

• Fix the under plate on the wall

Face of wall

Under plate

• Fix the cord clamps on the wall by

ø 3 tapping screws (accessory).

• Fix the remote control cord.

Cord clamp

(accessory)

Screw (accessory)

ELECTRICAL WIRING

(Main board)

CN REMO

Wire and make sure that teminal numbers are matched on unit side and remote controller side.

The maximum length of the cord is 100m.

If the length of the cord exceeds 50m, use a wire size greater than 0.5mm

2

.

Remote controller

REMOTE CONTROL PREPARATION

HOW TO MOUNT ONTO A WALL

Remove the battery cover from the remote controller.

• Slide the cover according to the arrow direction.

Insert the two batteries.

• Be sure that the (+) and (-) directions are correct.

• Be sure that both batteries are new.

Re-attach the cover.

• Slide it back into position.

7

• Do not use rechargeable batteries, such batteries differ from standard dry cells in shape, dimensions, and performance.

• Romove the batteries from the remote controller if the air conditioner is not going to be used for some long time.

5. Wiring Connection

• Open the control box cover and connect the Remote controller cord and Indoor power wires.

Indoor power cord

Remote controller cord

Control box cover

[Air inlet side view]

3Phase

36K/48K/54K

Heat Pump Model.

R S T N

Control box cover fitting screw(2 units)

Terminal Block of Outdoor Unit

1(L) 2(N) 3 4 5

Terminal Block of Indoor Unit

1(L) 2(N) 3 4 5

POWER INPUT

3Phase

36K/48K/54K

Cooling Model Only.

R S T N

POWER INPUT

L N

1Phase

28K/36K

Heat Pump Model.

POWER INPUT

L N

1Phase

28K/36K

Cooling Model Only.

1Phase

18K/24K

Heat Pump Model.

POWER INPUT

Terminal Block of Indoor Unit

3(L) 4(N) 5 6 7

Terminal Block of Outdoor Unit

1(L) 2(N) 3 4 5

Terminal Block of Outdoor Unit

1(L) 2(N) 3 4 5

Terminal Block of Outdoor Unit

1(L) 2(N) 3 4 5

Terminal Block of Indoor Unit

1(L) 2(N) 3 4 5

Terminal Block of Indoor Unit

1(L) 2(N) 3 4 5

Terminal Block of Indoor Unit

1(L) 2(N) 3 4 5

1(L) 2(N)

Terminal Block of Outdoor Unit

3(L) 4(N) 5 6 7 8

Power Cord

1Phase

18K/24K

Cooling Model.

Terminal Block of Indoor Unit

3(L) 4(N) 5 6 7 1(L) 2(N)

Terminal Block of Outdoor Unit

3(L) 4(N) 5 6 7 8

Power Cord

(LT-E24

**

CL Only)

CAUTION

The power cord connected to the outdoor unit should be complied with the following specifications

(Rubber insulation, type H05RN-F approved by HAR

or SAA).

Capacity 1 Phase 3 Phase

The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications (Rubber insulation, type H05RN-F approved by HAR or SAA).

GN/YL

20mm

18, 24, 28, 30K

BTU/h

36K BTU/h

48, 54K BTU/h

2.5mm

2

5.5mm

2

-

-

2.5mm

2

3.5mm

2

GN/YL

20mm

NORMAL

CROSS-SECTIONAL

AREA 0.75mm

2

(18K/24K/36K)

1.25mm

2

(48K/54K)

If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer or its service agent.

WARNING

Make sure that the screws of the terminal are free from looseness.

8

ELECTRICAL WIRING

1. All wiring must comply with LOCAL REGULATIONS.

2. Select a power source that is capable of supplying the current required by the air conditioner.

3. Feed the power source to the unit via a distribution switch board designed for this purpose.

4. The terminal screws inside the control box may be loose due to vibration during transport.

Check the screws for loose connection.

(Running the air conditioner with loose connection can overload and damage electrical components.)

5. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION.

Main power source

Circuit Breaker

Use circuit breaker or time delay fuse.

Switch box

Refrigerant pipe

CONNECTING THE CABLE TO OUTDOOR UNIT

1. Remove the Cover control from the unit by loosening a screw.

Connect the wires to the terminals on the control board individually as following.

2. Secure the cable onto the control board with the holder

(clamper).

3. Refix the cover control to the original position with the screw.

4. Use a recongnized circuit breaker 20A between the power source and the unit. A disconnection device to adequately disconnect all supply lines must be fitted.

Outdoor unit

Terminal block

Over 5mm

Holder for power supply cord

Cover control Holder for connecting cable

9

Power supply cord

Connecting cable

6. Connecting Pipes to the Indoor Unit

• Preparation of Piping

Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.

1) Cut the pipes and the cable.

■

Use the accessory piping kit or the pipes purchased locally.

■

Measure the distance between the indoor and the outdoor unit.

■

Cut the pipes a little longer than measured distance.

■

Cut the cable 1.5m longer than the pipe length.

Copper tube

Point down

90

°

2) Burrs removal

■

Completely remove all burrs from the cut cross section of pipe/tube.

■

Put the end of the copper tube/pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the tubing.

3) Putting nut on

■

Remove flare nuts attached to indoor and outdoor units, than put them on pipe/tube having completed burr removal.

(Not possible to put them on after flaring work)

4) Flaring work

■

Carry out flaring work using flaring tool as shown below.

Outside diameter mm inch

Ø6.35

1/4

Ø9.52

Ø15.88

Ø19.05

3/8

5/8

3/4

A mm

0.5~0.8

0.5~0.8

0.8~1.0

0.8~1.0

Firmly hold copper tube in a bar(or die) as indicated dimension in the table above.

Bar

Copper tube

Flare nut

"A"

Bar

Slanted Uneven Rough

Pipe

Reamer

Copper pipe

Clamp handle

Handle

Yoke

Cone

Red arrow mark

Smooth all round

Inside is shining without scratches

= Improper flaring =

5) Check

■

Compare the flared work with figure below.

■

If flare is noted to be defective, cut off the flared section and do flaring work again.

Inclined Surface damaged

Cracked Uneven thickness

Even length all round

10

Piping Connection

1. Form the piping according to its routing. Avoid bending and bending back the same piping point more than three times.

(This will result in hardening the pipe.)

2. After deforming the piping, align centers of the union fitting of the indoor unit and the piping, and tighten them firmly with wrenches.

3. Connect pipe to the service valve or ball valve which is located below the outdoor unit.

4. After completing the piping connection, be sure to check if there is gas leakage in indoor and outdoor connection.

Vacuum drying

After completing the piping connection, execute vacuum drying for the connecting piping and the indoor unit.

The vacuum drying must be carried out using the service ports of both the liquid and gas side valves.

Model

18K, 24K Btu/h

36K Btu/h

48K Btu/h

54K Btu/h

Liquid side piping Gas side piping

Ø 6.35mm

Ø15.88mm

Ø 9.52mm

Ø 9.52mm

Ø 12.7mm

Ø15.88mm

Ø19.05mm

Ø19.05mm

Liquid side

Outdoor unit

Gas side

Flare connection

Indoor unit

Flare connection

CAUTION

Use two wrenches and tighten with regular torque.

Ø6.35mm

Ø9.52mm

Ø12.7mm

Ø15.88mm

Ø19.05mm

Flare nut fastening torque

1.8 kg.m

4.0 kg.m

5.5 kg.m

6.6 kg.m

6.6 kg.m

Union

11

7. Installation of Decorative Panel

The decorative panel has its installation direction.

Before installing the decorative panel, always remove the paper template.

1. Temporarily fix two decorative panel fixing screws (hexagon M5 screw) on the unit body. (Tighten by amount

10mm in length.)

The fixing screws (hexagon M5 screw) are included the indoor unit box.

2. Remove the air inlet grille from the decorative panel. (Remove the hook for the air inlet grille cord.)

3. Hook the decorative panel key hole ( ) on the screws fixed in step above, and slide the panel so that the screws reach the key hole edge.

4. Retighten completely two temporarily fixed screws and other two screws. (Total 4 screws)

5. Connect the louver motor connector and display connector.

6. After tightening these screws, install the air inlet grille (including the air filter).

Air conditioner unit

Piping side

Decorative panel fixing screws

(hexagon M5 screws)

Temporally fitting at 2 places

(Tightening about 10mm)

Decorative panel

Key holes

Decorative panel fixing screws

(Hexagon M5 screw)

Control box cover

Display

Lead wire for louver motor and display

12

CAUTION

Install certainly the decorative panel.

Cool air leakage causes sweating. Water drops fall.

Good example Bad example

Air conditioner unit

Ceiling board

Decorative panel

Fit the insulator (this part) and be careful for cool air leakage

Air

Air conditioner unit

Cool air leakage

(no good)

Ceiling board

Decorative panel

8. Indoor Unit Drain Piping

Pipe clamp

• Drain piping must have down-slope (1/50 to 1/100): be sure not to provide up-and-down slope to prevent reversal flow.

• During drain piping connection, be careful not to exert extra force on the drain port on the indoor unit.

• The outside diameter of the drain connection on the indoor unit is 32mm.

Indoor unit

Maintenance drain port

Piping material: Polyvinyl chloride pipe VP-25 and pipe fittings

• Be sure to execute heat insulation on the drain piping.

Heat insulation material: Polyethylene foam with thickness more than 8 mm.

Drain test

The air conditioner uses a drain pump to drain water.

Use the following procedure to test the drain pump operation:

Feed water

Drain Pump

Upward routing not allowed

1/50~1/100

MAX 700mm

Flexible drain hose

(accessory)

Main drain pipe

Drain port

Glue the joint

Drain hose connection

Use the clip (accessory)

• Connect the main drain pipe to the exterior and leave it provisionally until the test comes to an end.

• Feed water to the flexible drain hose and check the piping for leakage.

• Be sure to check the drain pump for normal operating and noise when electrical wiring is complete.

• When the test is complete, connect the flexible drain hose to the drain port on the indoor unit.

Drain pan

13

HEAT INSULATION

1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C).

2. Precautions in high humidity circumstance:

This air conditioner has been tested according to the "KS Standard Conditions with Mist" and confirmed that there is not any default. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 23°C), water drops are liable to fall. In this case, add heat

Indoor unit

Fastening band

(accessory)

Refrigerant piping insulation material according to the following procedure:

• Heat insulation material to be prepared... Adiabatic glass wool with thickness 10 to 20mm.

• Stick glass wool on all air conditioners that are located in ceiling atmosphere.

Thermal insulator

(accessory)

• In addition to the normal heat insulation (thickness: more than 8mm) for refrigerant piping (gas piping: thick piping) and drain piping, add further 10mm to 30mm thickness material.

FORM THE PIPINGS

1. Wrap the connecting portion of indoor unit with the Insulation material and secure it with two Plastic Bands. (for the right pipings)

• If you want to connect an additional drain hose, the end of the drain-outlet should keep distance from the ground. (Do not dip it into water, and fix it on the wall to avoid swinging in the wind.)

In case of the Outdoor unit being installed below position of the Indoor unit.

2. Tape the Pipings, drain hose and

Connecting Cable from bottom to top.

3. Form the pipings gathered by taping along the exterior wall and fix it onto the wall by saddle or equivalent.

Seal a small opening around the pipings with gum type sealer.

Drain hose

Taping

Plastic Band

Pipings

Connecting cable

Power supply cord

Trap is required to prevent water from entering into electrical parts.

14

In case of the Outdoor Unit being installed above position of the Indoor Unit.

2. Tape the Pipings and Connecting cable from bottom to top.

3. Form the pipings gathered by taping along the exterior wall, and make the trap prevent water from entering into the room.

4. Fix the pipings onto the wall by saddle or equivalent.

Seal a small opening around the pipings with gum type sealer.

Trap

3. Test running

1) PRECAUTIONS IN TEST RUN

• The initial power supply must provide at least 90% of the rated voltage.

Otherwise, the air conditioner should not be operated.

For test run, carry out the cooling operation firstly even during heating season. If heating operation

Caution

is carried out firstly, it leads to the trouble of compressor. Then attention must be paid.

Carry out the test run more than 5 minutes without fail.

(Test run will be cancelled 18 minutes later automatically)

• The test run is started by pressing the room temperature checking button and down timer button for 3 seconds at the same time.

• To cancel the test run, press any button.

CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE

• After completing work, be sure to measure and record trial run properties, and store measured data, etc.

• Measuring items are room temperature, outside temperature, suction temperature, blow out temperature, wind velocity, wind volume, voltage, current, presence of abnormal vibration and noise, operating pressure, piping temperature, compressive pressure.

• As to the structure and appearance, check following items.

Is the circulation of air adequate?

Is the draining smooth?

Is the heat insulation complete

(refrigerant and drain piping)?

Is there any leakage of refrigerant?

Is the remote controller switch operated?

Is there any faulty wiring?

Are not terminal screws loosened?

M4......118N.cm{12kgf.cm} M5......196N.cm{20kgf.cm}

M6......245N.cm{25kgf.cm} M8......588N.cm{60kgf.cm}

15

2) Connection of power supply

1. Connect the power supply cord to the independent power supply.

• Circuit breaker is required.

2. Operate the unit for fifteen minutes or more.

3) Evaluation of the performance

1. Measure the temperature of the intake and discharge air.

2. Ensure the difference between the intake temperature and the discharge one is more than 8°C (Cooling) or reversely

(Heating).

Thermometer

CAUTION

After the confirmation of the above conditions, prepare the wiring as follows:

1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram pasted on the inside of control box cover.

2) Provide a circuit breaker switch between power source and the unit.

3) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation. Check them and make sure that they are all tightly fastened. (If they are loose, it could give rise to burn-out of the wires.)

4) Specification of power source

5) Confirm that electrical capacity is sufficient.

6) Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate.

7) Confirm that the cable thickness is as specified in the power sources specification.

(Particularly note the relation between cable length and thickness.)

8) Never fail to equip a leakage breaker where it is wet or moist.

9) The following troubles would be caused by voltage drop-down.

• Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the normal function of a overload protection device.

• Proper starting power is not given to the compressor.

HAND OVER

Teach the customer the operation and maintenance procedures, using the operation manual (air filter cleaning, temperature control, etc.).

16

4. Optional Operation

1) Two Thermistor System

(1) Open the rear cover of the wired remote-controller to set the mode.

(2) Select one of three selectable modes as follows.

• Position 1:

The room temperature is controlled by the thermistor of the main body.

• Position 2:

The room themperature is controlled by the thermistor of the wired remote-controller, control the temperature according to the position of wired remote-controller.

• Position 3:

The room temperature is controlled by lower temperature between the temperature of main body and of remotecontroller sensor.

(3) Move the slide switch to set position.

Room Temp. sensor

Slide switch for 2 Thermistor

Position 2

Position 1

Position 3

REMO

MAIN

2TH

TH R13H R12H

CO1H

OP5R16H OP4

R15H

R14H

OP3

SW TH

OP2 OP1

R19H

R11H

REMO

MAIN

2TH

R17H

OP7

R18H

OP6

STAND

LO

HI R03S

R01S

SW HIGH

Slide switch for ceiling height

(4) Close the rear cover and check if it works normally.

CAUTION

• Select the position after counselling with a customer.

• In case of cooling mode, room temperature is controlled by the main body sensor.

• To control the room temperature by a wired remote controller, install controller(room temp. sensor) to sense the temperature more accurately.

• Maunfactured in the position 3.

17

2) Adjusting air volume to the height of ceiling

You can choose the RPM(or air volume) of indoor motor according to the height of ceiling to supply the comfortable atmosphere to consumers.

Procedure

1. Choose the selectable position in the table after measuring the height of ceiling.

Remark Ceiling height more than 4.0m

3.2~4.0m

less than 3.2m

Mode of slide switch

High Ceiling

Standard

Low Ceiling

Change of air volume

Increasing

-

Decreasing

Maunfactured in standard mode

2. In the case of changing the height as "high" or "low", open the rear cover of the wired remote-controller.

3. Move the slide switch to the set position.

Slide switch for 2 Thermistor

Low ceiling

Standard

(Default)

High Ceiling

STAND

Lo

Hi

Slide switch for ceiling height

TH R13H R12H

CO1H

OP5R16H OP4

R15H

R14H

OP3

SW TH

OP2 OP1

R19H

R11H

REMO

MAIN

2TH

R17H

OP7

R18H

OP6

STAND

LO

HI R03S

R01S

SW HIGH

4. Close the rear cover and check if it works nomally.

18

3) Group Control(Optional Wiring)

• You can use a group control operation after connecting the brown and yellow wire of each air-conditioner.

• Remove the resistor "OP 7" in remote controller.

• It operates maximum 16 Units by only one Wired Remote Controller, and each Unit starts sequentially to prevent overcurrent.

Wiring design

Main PCB

RED(12V)

YL(SIGNAL)

BR(GND)

Indoor Unit 1

Terminal(Local Supply)

Block

Connector

RED(12V)

YL(SIGNAL)

BR(GND)

Main PCB

#1

YL(SIGNAL)

BR(GND)

Indoor Unit 2

Terminal(Local Supply)

Block

Connector

YL(SIGNAL)

BR(GND)

Main PCB

#2

....

YL(SIGNAL)

BR(GND)

Indoor Unit 16

Terminal(Local Supply)

Block

Connector

YL(SIGNAL)

BR(GND)

Main PCB

#16

Connecting Cable(Local Supply)

....

AUTO SWING OPERATION SET TEMP

Room Temp

FAN SPEED

HI

MED

LO

AUTO

JET

ZONE

Timer

On Off

Set no. Time

Operation unit

01 03 05 07 09

Time

Program set

11 13 15 17

SUB FUNCTION

Heater

Defrost Humidify

Filter

Preheat

Out door

1 2 3 4

19 21 23

Wired Remote Controller

Slide Switch

OP7

Remote

Controller

PCB

Features

• Use Only One Wired Remote Controller with several air conditioners(max. 16 Units)

• Random starting to prevent overcurrent.

CAUTION

• Be careful not to exchange the color of wires.

• The maximum length of connecting wire should be below 200m(25

Ω

) on connecting each units.

• Use a wire more than 0.5mm

2

19

MEMO

20