Hitachi RAC-09CH4, RAC-07CH4 Service Manual

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Page 1

RAS-07CH4 RAS-09CH4

RAC-07CH4 RAC-09CH4

SERVICE MANUAL

TECHNICAL INFORMATION

REFER TO THE FOUNDATION MANUAL

FOR SERVICE PERSONNEL ONLY

CONTENTS

SPECIFICATIONS ............................................................... 5

HOW TO USE ..................................................................... 6

CONSTRUCTION AND DIMENSIONAL DIAGRAM ........ 32

MAIN PARTS COMPONENTS ......................................... 33

WIRING DIAGRAM ........................................................... 35

BASIC MODE .................................................................... 41

REFRIGERATING CYCLE ................................................ 46

AUTO SWING FUNCTION ............................................... 47

SERVICE CALL Q & A ..................................................... 48

PARTS LIST AND DIAGRAM ........................................... 53

NO. 0205E

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

ROOM AIR CONDITIONER

INDOOR UNIT + OUTDOOR UNIT

MARCH 2004

H.A.P.M.

SPECIFICATIONS

TYPE

WALL TYPE

INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT

MODEL RAS-07CH4 RAC-07CH4 RAS-09CH4 RAC-09CH4

POWER SOURCE 1Ø, 220 V, 50 Hz

TOTAL INPUT (W) 680 870

COOLING

TOTAL AMPERES (A) 3.15 4.1

CAPACITY

(kW) 2.05 2.50

(B.T.U./h) 7,000 8,500

TOTAL INPUT (W) 630 860

HEATING

TOTAL AMPERES (A) 3.0 4.1

CAPACITY

(kW) 2.15 2.65

(B.T.U./h) 7,850 10,000

W 785 700 785 700

DIMENSIONS (mm) H 265 570 265 570

D 168 210 168 210

NET WEIGHT (kg) 7 26 7 26

RAS-07CH4/RAC-07CH4 RAS-09CH4/RAC-09CH4

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SAFETY DURING REPAIR WORK

1. In order to disassemble and repair the unit in question, be sure to disconnect the power cord plug from the power outlet before starting the work.

2. If it is necessary to replace any parts, they should be replaced with respective genuine parts for the unit, and the replacement must be effected in correct manner according to the instructions in the Service Manual of the unit.

3. After completion of repairs, the initial state should be restored.

4. Lead wires should be connected and laid as in the initial state.

5. Modification of the unit by the user himself should absolutely be prohibited.

6. Tools and measuring instruments for use in repairs or inspection should be accurately calibrated in advance.

7. In installing the unit having been repaired, be careful to prevent the occurrence of any accident such as electrical shock, leak of current, or bodily injury due to the drop of any part.

8. To check the insulation of the unit, measure the insulation resistance between the power cord plug and grounding terminal of the unit. The insulation resistance should be 1MΩ or more as measured by a 500V DC megger.

9. The initial location of installation such as window, floor or the other should be checked for being safe enough to support the repaired unit again. If it is found not so strong and safe, the unit should be installed at the initial location after reinforced or at a new location.

10. Any inflammable object must not be placed about the location of installation.

11. Check the grounding to see whether it is proper or not, and if it is found improper, connect the grounding terminal to the earth.

If the contacts of electrical parts are defective, replace the electrical parts without trying to repair them.

Spray

gasoline

gasbombe

thinner

DANGER

First, I must disconnect the power cord plug

from the power outlet.

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HITACHI IC401TH1 ,188UV

WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS

1. Scope The standards provide for items to be generally observed in carrying and handling semiconductors in relative manufacturers during maintenance and handling thereof. (They apply the same to handling of abnormal goods such as rejected goods being returned).

2. Object parts (1) Micro computer (2) Integrated circuits (IC) (3) Field-effect transistors (FET) (4) P.C. boards or the like on which the parts mentioned in (1) and (2) of this paragraph are equipped.

3. Items to be observed in handling (1) Use a conductive container for carrying and storing of parts. (Even rejected goods should be handled in the

same way).

(2) When any part is handled uncovered (in counting, packing and the like), the handling person must always

use himself as a body earth. (Make yourself a body earth by passing one M ohm earth resistance through a ring or bracelet).

(3) Be careful not to touch the parts with your clothing when you hold a part even if a body earth is being taken.

(4) Be sure to place a part on a metal plate with grounding.

(5) Be careful not to fail to turn off power when you repair the printed circuit board. At the same time, try to repair

the printed circuit board on a grounded metal plate.

A conductive polyvinyl bag

Conductive sponge

Fig. 1 Conductive Container

Fig. 2 Body Earth

Body earth (Elimik conductive band)

Clip for connection with a grounding wire

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(6) Use a three wire type soldering iron including a grounding wire.

Bare copper wire (for body earth)

Working table

Resistor of 1 MΩ (1/2W)

Earth wire

Fig. 3. Grounding of the working table

Screw stop at the screwed part using a rag plate

Soldering iron

Grounding wire

Fig. 4. Grounding a soldering iron

Use a high insulation mode (100V, 10MΩ or higher) when ordinary iron is to be used.

(7) In checking circuits for maintenance, inspection or some others, be careful not to have the test probes of the

measuring instrument shortcircuit a load circuit or the like.

Metal plate (of aluminium, stainless steel, etc.)

Staple

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CAUTION

1. In quiet or stop operation, slight flowing noise of refrigerant in the refrigerating cycle is heard occasionally, but this noise is not abnormal for the operation.

2. When it thunders near by, it is recommend to stop the operation and to disconnect the power cord plug from the power outlet for safety.

3. If the room air conditioner is stopped by setting the temperature or mis-operation, and then re-started in a moment, cooling operation does not start for 3 minutes, it is not abnormal and this is the result of the operation of IC delay circuit. This IC delay circuit ensures that there is no danger of blowing fuse or damaging parts even if operation is restarted accidentally.

4. This room air conditioner should not be used at the cooling operation when the outside temperature is below 20°C.

5. When the operation knob is set to “COOL” from another position, IC delay circuit functions and stops the compressor for the first 3 minutes, which is not an abnormal phenomenon.

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There are 3 directions allowed, namely, horizontally perpendicular to the unit, vertically down from right, horizontally out from right. Don’t form the piping downward at the left of the unit.

Horizontally perpendicular to the unit

Connection

Dimension of Mounting Stand

of the outdoor unit

(unit : mm)

225

500

100

above 100mm

above 50mm

above 100mm

2,300mm or more

above 300mm

must not bend

about 0.45m

Maximum pipe length 10m

Minimum pipe length 5m

* above 50mm

* give clearance

as wide as possible

above 200mm

* above 200mm

above 100mm

above 50mm when installed on the ceiling of balcony

above 200mm

The indoor piping should be insulated with the enclosed insulation pipe. (If the insulator is insufficient, please use commercial products).

The difference in height between the indoor and outdoor unit should be kept below 5m. The connecting pipe, no matter big or small, should all be insulated with insulation pipe and then wrapped with vinyl tape. (The insulator will deteriorate if it is not wrapped with tape).

The connection of insulated drain hose.

inner diameter ø 16mm

Please use insulated drain hose for the indoor piping (commercial product.)

•

mounting stand

Plug

Be sure to completely seal any gap with putty.

The Length of Indoor Unit

Connecting Cord

about

0.9m

about 1.6m

Do not alter the power cord.

Cut away shaded portion, and finish the edge of the opening so that there is no burr.

Figure showing the Installation of Indoor and Outdoor unit.

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SPECIFICATIONS

MODEL RAS-07CH4 RAC-07CH4 RAS-09CH4 RAC-09CH4

FAN MOTOR 10 W 20 W 10 W 20 W

FAN MOTOR CAPACITOR 1 µF, 400 V 1.5 µF, 400 V 1 µF, 400 V 1.5 µF, 400 V

FAN MOTOR PROTECTOR

YES (INTERNAL) YES (INTERNAL) YES (INTERNAL) YES (INTERNAL)

COMPRESSOR NO G333DB2Z NO G533QB9Z

COMPRESSOR MOTOR CAPACITOR NO 30 µF, 400 V NO 30 µF, 400 V

OVERLOAD PROTECTOR NO YES NO YES

OVERHEAT PROTECTOR NO NO NO NO

FUSE (for MICRO COMPUTER) 3.0 A NO

POWER RELAY G4A NO G4A NO

POWER SWITCH YES NO YES NO

TEMPORARY SWITCH YES NO YES NO

SERVICE SWITCH YES NO YES NO

TRANSFORMER YES NO YES NO

VARISTOR 450NR NO 450NR NO

NOISE SUPPRESSOR NO NO NO NO

REMOTE CONTROL SWITCH (LIQUID CRYSTAL)

YES NO YES NO

THERMOSTAT YES (IC) NO YES (IC) NO

FUSE CAPACITY 10 A TIME DELAY FUSE

UNIT -------- ❇ 630 g -------- ❇ 700 g

REFRIGERANT CHARGING VOLUME WITHOUT REFRIGERANT BECAUSE COUPLING IS FLARE (Refrigerant 22) PIPES TYPE.

P - 105 VK1 (5m), P - 108 VK1 (8m)

❇ 630g for piping set of 5 ~ 8m. ❇ 700g for piping set of 5 ~ 8m.

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SAFETY PRECAUTION

●

Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit.

●

Pay special attention to signs of “ Warning” and “ Caution”. The “Warning” section contains matters which, if not observed strictly, may cause death or serious injury. The “Caution” section contains matters which may result in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.

●

The sign indicate the following meanings.

●

Please keep this manual after reading.

WARNING

PRECAUTIONS DURING INSTALLATION

●

Please ensure smooth flow of water when installing the drain hose.

CAUTION

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

PRECAUTIONS DURING OPERATION

●

Avoid an extended period of direct air flow for your health.

A R N

●

During thunder storm, disconnect and turn off the circuit breaker.

●

Do not use any conductor as fuse wire, this could cause fatal accident.

Make sure to connect earth line.

Indicates the instructions that must be followed.

The sign in the figure indicates prohibition.

A R N

Do not reconstruct the unit. Water leakage, fault, short circuit or fire may occur if you reconstruct the unit by yourself.

Please ask your sales agent or qualified technician for the installation of your unit. Water leakage, short circuit or fire may occur if you install the unit by yourself.

A circuit breaker should be installed depending on the mounting site of the unit. Without a circuit breaker, the danger of electric shock exists.

Do not install near location where there is flammable gas. The outdoor unit may catch fire if flammable gas leaks around it.

Please use earth line. Do not place the earth line near water or gas pipes, lightning-conductor, or the earth line of telephone. Improper installation of earth line may cause electric shock.

Should abnormal situation arises (like burning smell), please stop operating the unit and turn off the circuit breaker. Contact your agent. Fault, short circuit or fire may occur if you continue to operate the unit under abnormal situation.

Please contact your agent for maintenance. Improper self maintenance may cause electric shock and fire.

Please contact your agent if you need to remove and reinstall the unit. Electric shock or fire may occur if you remove and reinstall the unit yourself improperly.

Do not insert a finger, a rod or other objects into the air outlet or inlet. As the fan is rotating at a high speed, it will cause injury. Before cleaning, be sure to stop the operation and turn the breaker OFF.

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PRECAUTIONS DURING OPERATION

●

A U

I O N

●

The product shall be operated under the manufacturer specification and not for any other intended use.

When operating the unit with burning equipments, regularly ventilate the room to avoid oxygen insufficiency.

Please ensure that outdoor mounting frame is always stable, firm and without defect. If not, the outdoor unit may collapse and cause danger.

Turn off the circuit breaker if the unit is not to be operated for a long period.

Do not use any aerosol or hair sprays near the indoor unit. This chemical can adhere on heat exchanger fin and blocked the evaporation water flow to drain pan. The water will drop on tangential fan and cause water splashing out from indoor unit.

Do not put water container (like vase) on the indoor unit to avoid water dripping into the unit. Dripping water will damage the insulator inside the unit and causes short-circuit.

When operating the unit with the door and windows opened, (the room humidity is always above 80%) and with the air deflector facing down or moving automatically for a long period of time, water will condense on the air deflector and drips down occasionally. This will wet your furniture. Therefore, do not operate under such condition for a long time. If the amount of heat in the room is above the cooling or heating capability of the unit (for example: more people entering the room, using heating equipments and etc.), the preset room temperature cannot be achieved.

Do not direct the cool air coming out from the air-conditioner panel to face household heating apparatus as this may affect the working of apparatus such as the electric kettle, oven etc.

Do not attempt to operate the unit with wet hands, this could cause fatal accident.

Do not splash or direct water to the body of the unit when cleaning it as this may cause short circuit.

Please switch off the unit and turn off the circuit breaker during cleaning, the high-speed fan inside the unit may cause danger.

Do not climb on the outdoor unit or put objects on it.

Do not place plants directly under the air flow as it is bad for the plants.

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NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

OUTDOOR UNIT

Air Filter

To prevent dust from coming into the indoor unit. (Refer page 24)

Suction Grille (Air Inlet)

Indoor unit Indicators

Light indicator showing the operation condition. (Refer page 9)

Horizontal Deflector • Vertical Deflector (Air outlet)

(Refer page 20)

Remote Control

Send out operation signal to the indoor unit. So as to operate the whole unit. (Refer page 10)

Drain pipe

Condensed water drain to outside.

Connecting cord

Air inlet (Back and left side)

Air outlet

Blow out warm air.

MODEL NAME AND DIMENSIONS

MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm)

RAS-07CH4, RAS-09CH4 785 265 168

RAC-07CH4, RAC-09CH4 700 570 210

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OPERATION LAMP

This lamp lights during operation.

TIMER LAMP

This lamp lights when the timer is working.

SIGNAL RECEIVER

There will be a beep sound when this receiver receives signal from remote control.

INDOOR UNIT INDICATORS

OPERATION INDICATOR

TEMPORARY SWITCH

Use this switch to start and stop when the remote controller does not work. [Use non-conductor stick (example toothpick)]

● By pressing the temporary switch, the operation is done

in previously set operation mode.

● When the operation is done using the temporary switch

after the power source is turned off and turn on again, the operation is done in automatic mode.

POWER SWITCH

RAS-

Temporary Switch

Press

about 7mm

Non-conductor Stick

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AUTO

HEAT

DEHUMIDIFY

COOL

FAN

FAN SPEED LOW MED HI

SLEEPING

STOP (CANCEL)

START (RESERVE)

START/STOP

TIME

TIMER SET

TIMER SELECTOR ON TIMER OFF TIMER

AUTO SWING

RESET

NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT

REMOTE CONTROLLER

This controls the operation of the indoor unit. The range of control is about 7 meters. If indoor lighting is controlled electronically, the range of control may be shorter. This unit can be fixed on a wall using the fixture provided. Before fixing it, make sure the indoor unit can be controlled from the remote controller.

Precautions for Use

● Do not put the remote controller in the following places.

● Under direct sunlight.

● In the vicinity of a heater.

● Handle the remote controller carefully. Do not drop it on the floor, and

protect it from water.

● Once the outdoor unit stops, it will not restart for about 3 minutes (unless

you turn the power switch off and on or unplug the power cord and plug it in again). This is to protect the device and does not indicate a failure.

● If you press the FUNCTION selector button during operation, the device

may stop for about 3 minutes for protection.

● Signal emitting window/transmission sign

Point this window toward the indoor unit when controlling it. The transmission sign blinks when a signal is sent.

● Display

This indicates the room temperature selected, current time, timer status, function and intensity of circulation selected.

● START/STOP button

Press this button to start operation. Press it again to stop operation.

● SLEEP button

Use this button to set the sleep timer.

● TEMPERATURE button

Use this button to raise or lower the temperature setting. (Keep pressed, and the value will change more quickly.)

● TIME button

Use this button to set and check the time and date.

● RESET button

● FUNCTION selector

Use this button to select the operating mode. Every time you press it, the mode will change from

(AUTO) to (HEAT) to (DEHUMIDIFY) to

(COOL) and to (FAN) cyclically.

● FAN SPEED selector

This determines the fan speed. Every time you press this button, the intensity of circulation will change from

(AUTO) to (HI) to (MED) to (LOW)

(during the

(FAN) mode, from (HI) to (MED) to (LOW)).

● AUTO SWING button

Controls the angle of the horizontal air deflector.

● TIMER control

Use this button to set the timer.

● OFF-TIMER button Select the turn OFF time.

● ON-TIMER button Select the turn ON time.

● RESERVE button Time setting reservation.

● CANCEL button Cancel time reservation.

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RESET

AUTOMATIC OPERATION

The device will automatically determine the mode of operation, HEAT, COOL or DEHUMIDIFY depending on the initial room temperature. The selected mode of operation will not change when the room temperature varies.

Press the FUNCTION selector so that the display indicates the

(AUTO) mode of operation.

● When AUTO has been selected, the device will automatically

determine the mode of operation, HEAT, COOL or DEHUMIDIFY depending on the current room temperature.

Press the (START/STOP) button. Operation starts with a beep. Press the button again to stop operation.

■ As the settings are stored in memory in the remote controller, you only have to press the

(START/STOP) button next time.

You can raise or lower the temperature setting as necessary by maximum of 3°C.

Press the temperature button and the temperature setting will change by 1°C each time.

● The preset temperature and the actual room temperature may

vary somewhat depending on conditions.

● The display does not indicate the preset temperature in the AUTO

mode. If you change the setting, the indoor unit will produce a beep.

START

STOP

Initial room temperature

Function Temperature setting FAN SPEED

(approx.)

Over 27°C COOL 27°C

Under 23°C HEAT 23°C

HI at start, MED or LOW after the preset temperature is reached

Slightly lower than the room temperature

HI at start, MED or LOW after the preset temperature is reached

■ CONDITION OF AUTOMATIC OPERATION

● The selected mode of operation will not change during the operation even though the room temperature

change.

23~27°C DEHUMIDIFY LOW

➡

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Press the FUNCTION selector so that the display indicates the

(HEAT).

Press the (START/STOP) button. Heating operation starts with a beep. Press the button again to stop operation.

Set the desired fan speed with the

(FAN SPEED) button (the

display indicates the setting).

(AUTO) : The FAN SPEED is HI at first and varies to MED

automatically when the preset temperature has been reached.

(HI) : Economical as the room will become warm

quickly.

But you may feel a chill at the beginning. (MED) : Quiet. (LOW) : More quiet.

Set the desired room temperature with the TEMPERATURE button (the display indicates the setting).

The range of 18-22°C is recommended as the room temperature for heating. If the temperature setting is 20°C, the room temperature will be controlled at around 20°C.

The temperature setting and the actual room temperature may vary somewhat depending on conditions.

■ As the settings are stored in memory in the remote controller, you only have to press the

(START/STOP) button next time.

HEATING OPERATION

Use the device for heating when the outdoor temperature is under 21°C. When it is too warm (over 21°C), the heating function may not work in order to protect the device.

RESET

START

STOP

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DEHUMIDIFYING OPERATION

Use the device for dehumidifying when the room temperature is over 16°C. When it is under 15°C, the dehumidifying function will not work.

When the room temperature is higher than the temperature setting: The device will dehumidify the room, reducing the room temperature to the preset level. When the room temperature is lower than the temperature setting: Dehumidifying will be performed at the temperature setting slightly lower than the current room temperature, regardless of the temperature setting. The function will stop (the indoor unit will stop emitting air) as soon as the room temperature becomes lower than the setting temperature.

■ Dehumidifying Function

Press the FUNCTION selector so that the display indicates

(DEHUMIDIFY). The FAN SPEED is set at LOW automatically. The FAN SPEED button does not work.

Set the desired room temperature with the TEMPERATURE button (the display indicates the setting).

The range of 20-26°C is recommended as the room temperature for dehumidifying.

■ As the settings are stored in memory in the remote controller, you only have to press the

(START/STOP) button next time.

Press the (START/STOP) button. Dehumidifying operation starts with a beep. Press the button again to stop operation.

RESET

START

STOP

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COOLING OPERATION

Use the device for cooling when the outdoor temperature is 22-42°C. If humidity is very high (over 80%) indoors, some dew may form on the air outlet grille of the indoor unit.

Press the FUNCTION selector so that the display indicates the

(COOL).

Set the desired fan speed with the

(FAN SPEED) button (the

display indicates the setting).

(AUTO) : The FAN SPEED is HI at first and varies to MED

automatically when the preset temperature has been reached.

(HI) : Economical as the room will become warm

quickly.

But you may feel a chill at the beginning. (MED) : Quiet. (LOW) : More quiet.

Set the desired room temperature with the TEMPERATURE button (the display indicates the setting).

The range of 25-28°C is recommended as the room temperature for cooling. If the temperature setting is 27°C, the room temperature will be controlled at around 27°C.

The temperature setting and the actual room temperature may vary somewhat depending on conditions.

Press the (START/STOP) button. Cooling operation starts with a beep. Press the button again to stop operation. The cooling function does not start if the temperature setting is higher than the current room temperature (even though the

(OPERATION) lamp lights). The cooling function will start as soon as you set the temperature below the current room temperature.

■ As the settings are stored in memory in the remote controller, you only have to press the

(START/STOP) button next time.

RESET

START

STOP

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RESET

FAN OPERATION

You can use the device simply as an air circulator. Use this function to dry the interior of the indoor unit at the end of summer.

FAN SPEED (AUTO) …

When the AUTO fan speed mode is set in the cooling/heating operation:

For the heating operation

● The fan speed will automatically change according to the temperature of

discharged air.

● When the difference of room temperature and setting temperature is

large, fan starts to run at HI speed.

● When the room temperature reaches setting temperature, fan speed

changes to LOW automatically.

For the cooling operation

● When the difference of room temperature and setting temperature is

large, fan starts to run at HI speed.

● After room temperature reaches the preset temperature, the cooling

operation, which changes the fan speed and room temperature to obtain optimum conditions for natural healthful cooling will be performed.

Press the FUNCTION selector so that the display indicates the

(FAN).

Press the (FAN SPEED) button.

START

STOP

Press the (START/STOP) button. Fan operation starts with a beep. Press the button again to stop operation.

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Start

Stop

Start Stop

●

OFF-Timer

After you change the batteries;

ON-Timer

Time, Day, Month

●

The device will turn on at the designated times.

M D

STOP

Start

ON/OFF-Timer

Set the current month and day with the TIMER control button.

The device will turn on (off) and off (on) at the designated times.

The switching occurs first at the preset time that comes earlier.

The arrow mark appearing on the display indicates the sequence of switching operations.

Press the (ON-OFF) button so that the (OFF) mark blinks.

Set the turn-off time with the TIMER control button. Press the (RESERVE) button.

Press the (ONTIMER) button so that the (OFF) mark lights and the (ON) mark blinks.

Press the (ON-TIMER) button the (ON) mark blinks on the display.

Press the (OFF-TIMER) button. The (OFF) mark blinks on the display.

You can set the device to turn off at the present time.

RESET

HOW TO SET THE TIMER

How to Cancel Reservation

Point the signal window of the remote controller toward the indoor unit, and press the (CANCEL) button. The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor unit.

NOTE

You can set only one of the OFF-timer, ON-timer and ON/OFF-timer.

TIME, DAY, MONTH (current time, day, month)

OFF TIMER

ON TIMER

RESERVE

CANCEL

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Point the signal window of the remote controller toward the indoor unit, and press the (RESERVE) button. The (OFF) mark starts lighting instead of flashing and the sign (RESERVED) lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.

●

Example: The current time is 1:30 p.m.

The setting of turn-off time is now complete.

Example: The device will turn off at 11:00p.m.

PM PM

Point the signal window of the remote controller toward the indoor unit, and press the (RESERVE) button. The (ON) mark starts lighting instead of flashing and the sign (RESERVED) lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.

Press the (TIME) button.

Set the current time with the TIMER control button.

Set the turn-off time with the TIMER control button.

Set the turn-on time with the TIMER control button.

Press the (TIME) button again. The time indication starts lighting instead of flashing.

The time indication will disappear automatically in 10 second.

To check the current time setting, press the (TIME) button twice.

The setting of the current time is now complete.

Example: The device will automatically turn on earlier so that the preset temperature can be reached at 7:00 a.m. The setting of the turn-on time is now complete.

Example: The device will turn off at 10:30 p.m. and then automatically turn on earlier so that the preset temperature can be reached at 7:00 a.m. The settings of the turn-on/off times are now complete.

● The timer may be used in three ways: off-timer, on-timer and ON/OFF (OFF/ON)-timer. Set the current time

at first because it serves as a reference.

● As the time settings are stored in memory in the remote controller, you only have to press the (RESERVE)

button in order to use the same settings next time.

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1 hour 2 hours 3 hours 7 hours

Sleep timer off

Sleep

timer

Start

HOW TO SET THE SLEEP TIMER

Set the current time at first if it is not set before (see the pages for setting the current time). Press the

(SLEEP) button, and the display changes as shown below.

How to Cancel Reservation

Point the signal window of the remote controller toward the indoor unit, and press the (CANCEL) button. The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor unit.

Mode Indication

Sleep timer

SLEEP

Sleep Timer: The device will continue working for the designated number of hours and then turn off. Point the signal window of the remote controller toward the indoor unit, and press the SLEEP button. The timer information will be displayed on the remote controller. The TIMER lamp lights with a beep from the indoor unit. When the sleep timer has been set, the display indicates the turn-off time.

Example: If you set 3 hours sleep time at 11:38 p.m., the turn-off time is 2:38 a.m.

The device will be turned off by the sleep timer and turned on by on-timer.

Set the On-timer.

Press the

(SLEEP) button and set the sleep timer.

Example: In this case, the device will turn off in 2 hours (at 1:38 a.m.) and turn on early so that the preset temperature will be almost reached at 6:00 next morning.

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Explanation of the sleep timer

The device will control the FAN SPEED and room temperature automatically so as to be quiet and good for people’s health. You can set the sleep timer to turn off after 1, 2, 3 or 7 hours. The FAN SPEED and room temperature will be controlled as shown below.

Operation with the sleep timer

“ ”

Function Operation

Heating

Cooling

and

dehumidifying

Fan

The room temperature will be controlled 5°C below the temperature and the FAN SPEED will be set to LOW setting 30 minutes after the setting of the sleep timer.

The room temperature will be controlled 2°C above the temperature and the FAN SPEED will be set to LOW setting 30 minutes after the setting of the sleep timer.

The settings of room temperature and circulation are varied.

2°C

5°C

Sleep timer set

2 hours later

30 minutes later

3 hours later

7 hours later

3 hours later1 hour later

Sleep timer set

2 hours later

6 hours later

7 hours later

NOTE

●

If date or current time is not set, sleep timer can not be set.

●

If you set the sleep timer after the off-, on/off- or off/on-timer has been set, the sleep timer becomes effective instead of the off-, on/off- or off/on-timer set earlier.

●

You can not set other timer during sleep timer operation.

●

After sleep timer time is up and when press sleep button again, the sleep timer will be set as last setting.

●

Sleep timer effective only once.

Page 22

– 20 –

When cooling dehumidifying

about 25°

about 20°

When heating

about 35°

CAUTION

●

When operating the unit in cooling operation with the air deflector facing down and moving automatically for a long period of time, water will condensed on the air deflector and drips down occasionally. This will wet your furniture.

ADJUSTING THE AIR DEFLECTORS

Adjustment of the conditioned air in the upward and downward directions.

According to “Dehumidifying” and “Cooling” operation, the horizontal air deflector is automatically set to the proper angle suitable for each operation.

The deflector can be swung up and down and also set to the desired angle using the “

(AUTO SWING)” button. (If the angle of the deflector is changed, it will not return to the auto-set position after operations start unless the operation mode is switched.)

●

If the “

(AUTO SWING)” button is pressed once, the horizontal air deflector swings up and down. If the button is pressed again, the deflector stops in its current position. Several seconds (about 12 seconds) may be required before the deflector starts to move.

●

In “Cooling” operation, do not keep the horizontal air deflector swinging for a long time. Some dew may form on the horizontal air deflector and some dew may drop.

Adjustment of the conditioned air to the left and right.

Hold the vertical air deflector as shown in the figure and adjust the conditioned air to the left and right.

Page 23

– 21 –

Remove the cover as shown in the figure and take out the old batteries.

Install the new batteries. The direction of the batteries should match the marks in the case.

Push and pull to the direction of arrow

CAUTION

1. Do not use new and old batteries, or different kinds of batteries together.

2. Take out the batteries when you do not use the remote controller for 2 or 3 months.

HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER

Page 24

– 22 –

THE IDEAL WAYS OF OPERATION

Suitable Room Temperature

Warning

Freezing temperature is bad for health and a waste of electric power.

Install curtain or blinds

It is possible to reduce heat entering the room through windows.

Ventilation Effective Usage Of Timer

Do Not Forget To Clean The Air Filter

Please Adjust Suitable Temperature For

Baby and Children

Caution

Do not close the room for a long period of time. Occasionally open the door and windows to allow the entrance of fresh air.

At night, please use the “OFF or ON timer operation mode”, together with your wake up time in the morning. This will enable you to enjoy a comfortable room temperature. Please use the timer effectively.

Dusty air filter will reduce the air volume and the cooling efficiency. To prevent from wasting electric energy, please clean the filter every 2 weeks.

Please pay attention to the room temperature and air flow direction when operating the unit for baby, children and old folks who have difficulty in movement.

Page 25

– 23 –

FOR USER’S INFORMATION

The Air Conditioner And The Heat Source In The Room

Caution

If the amount of heat in the room is above the cooling capability of the air conditioner (for example: more people entering the room, using heating equipments and etc.), the preset room temperature cannot be achieved.

Not Operating For A Long Time

When the indoor unit is not to be used for a long period of time, please switch off the power from the mains. If the power from mains remains “ON”, the indoor unit still consumes about 8W in the operation control circuit even if it is in “OFF” mode.

OFF

Interference From Electrical Products

Caution

To avoid noise interference, please place the indoor unit and its remote controller at least 1m away from electrical products.

When Lightning Occurs

Warning

To protect the whole unit during lightning, please stop operating the unit and remove the plug from the socket.

To prevent interference, place at least 1m away.

Inverter-type fluorescent lamp.

Page 26

– 24 –

Before the cleaning, stop operation and disconnect the power supply.

1. AIR FILTER

2. CLEANING OF FRONT COVER, ETC.

●

CAUTION

●

NOTE:

●

CAUTION

PROCEDURE

REMOVING METHOD

INSTALLATION METHOD

CAUTION

A C I D

Clean the air filter, as it removes dust inside the room. In case the air filter is full of dust, the air flow will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to clean the filter following the procedure below.

Do not wash with hot water at more than 40°C. The filter may shrink.

When washing it, shake off moisture completely and dry it in the shade; do not expose it directly to the sun. The filter may shrink.

Do not operate the air conditioner with the filter removed. Dust may enter the air conditioner and cause trouble.

This model has an air cleaning filter. The cooling capacity is slightly weakened and the cooling speed becomes slower when the air cleaning filter is used.So, set the fan speed to “HIGH” when using it in this condition. Recommended to replace the air cleaning filter after every 3 months for normal usage. Type number for this air cleaning filter is <SPX-CFH3>. Please use this number for ordering when you want to renew it.

Remove dust from the filter using a vacuum cleaner. If there is too much dust, use neutral detergent. After using neutral detergent, wash with clean water and dry in the shade.

Set the filter with “FRONT” mark facing front, and slot in them to the original state.

Never use hot water (above 40°C), benzine, gasoline, acid, thinner or a brush, because they will damage the plastic surface and the coating.

Wipe it with a soft dry cloth. When it is excessively dirty, wipe with a soft cloth soaked in luke warm water or neutral detergent. Then wipe thoroughly with a soft dry cloth. Wipe the remote controller thoroughly with a soft dry cloth.

Press the “ (AUTO SWING)” button, let the deflector facing downward.

Remove the filter from the lower side as the arrow shown.

Install the filters. (Set them with “FRONT” mark facing front.) Slot in the filter to the original state.

MAINTENANCE

Page 27

– 25 –

3. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD

REGULAR INSPECTION

Is the plug of power line firmly plugged into the socket? (Please ensure no loose contact between them).

Is the earth line disconnected or broken?

Is the mounting frame seriously affected by rust and is the outdoor unit tilted or unstable?

Air

Blow

Confirm

PLEASE CHECK THE FOLLOWING POINTS EVERY EITHER HALF YEARLY OR YEARLY. CONTACT YOUR SALES AGENT SHOULD YOU NEED ANY HELP.

Running the unit setting the operation mode to (FAN) and the fan speed to HI for about half a day on a fine day, and dry the whole of the unit.

Disconnect the power plug.

Page 28

– 26 –

When it does not operate

●

Is the fuse all right?

●

Is the voltage extremely high or low?

●

Is the circuit breaker “ON”?

●

Was the air filter cleaned?

●

Does sunlight fall directly on the outdoor unit?

●

Is the air flow of the outdoor unit obstructed?

●

Are the doors or windows opened, or is there any source ofheat in the room?

●

Is the set temperature suitable?

CONDITION CHECK THE FOLLOWING POINTS

Notes

●

In quiet operation or stopping the operation, the following phenomena may occassionally occur, but they are not abnormal for the operation. (1) Slight flowing noise of refrigerant in the refrigerating cycle. (2) Slight rubbing noise from the fan casing which is cooled and then

gradually warmed as operation stops.

●

The odor will possibly be emitted from the room air conditioner because the various odor, emitted by smoke, foodstuffs, cosmetics and so on, sticks to it. So please clean the air filter and the evaporator regularly to reduce the odor.

●

When it does not cool well

WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS.

Please contact your sales agent immediately if the air conditioner still fails to operate normally after the above inspections. Inform your agent of the model of your unit, production number, date of installation. Please also inform him regarding the fault.

Power supply shall be connected at the rated voltage, otherwise the unit will be broken or could not reach the specified capacity.

Please note: On switching on the equipment, particularly when the room light is dimmed, a slight brightness fluctuation may occur. This is of no consequence. The conditions of the local Power Supply Companies are to be observed.

AFTER SALES SERVICE AND WARRANTY

Page 29

– 27 –

HOW TO REPLACE NEW UV-LED AND FILTER

Open the front cover.

Cut the binder.

Lift up the left side of the evaporator.

Page 30

– 28 –

Rear view

Remove tape at the cabinet.

Remove aluminium tape at the cabinet.

Remove tape at the electrical box.

Disconnect the connector between UV-LED and electrical box.

Remove the K-spring.

Pull up the ACL-holder.

Page 31

– 29 –

Remove the UV-LED.

If necessary, change the ACL filter (SPX-CFH9).

After replace new UV-LED and filter, make sure to reattach the aluminium tape.

Put back the K-spring.

Connect the connector between UVLED and electrical box.

Page 32

– 30 –

Rear view

Reattach tape at the cabinet.

Reattach tape at the electrical box.

Reattach the evaporator to its place.

Reattach the binder.

Page 33

– 31 –

Put back the front cover.

Page 34

– 32 –

88.5

Hole on the wall for ø65mm pipe

Connecting cable Line cord

Mounting plate

Air suction grill

6.5

Discharge grill

785

Vertical air deflector

785

Top Air suction grill

Horizontal air deflector

6.5

Front cover

168 10

CabinetCabinet

Wireless remote controllerWireless remote controller

265

About 340

About 430

About

400

VIEWED FROM BACKVIEWED FROM BACK (PIPE LEAD-OUT)(PIPE LEAD-OUT)

167.5 450

(167.5)

58 58

Drain outlet

Drain hose

Drain pan

Narrow pipe (ø6.35)

Wide pipe (ø9.52)

55.5

Drain cap connection part

When piping is drawnWhen piping is drawn horizontally, exchange the drain hose for the drain cap.

147

56 17.5

Air outlet

Handle

Air inlet

(18)

490

Handle

Viewed from P

157

245

225

500

570

428

700

243

236 210 10

482

517

135

CONSTRUCTION AND DIMENSIONAL DIAGRAM

MODEL RAS-07CH4, RAS-09CH4

MODEL RAC-07CH4, RAC-09CH4

Page 35

– 33 –

= 355

= 290.2

MODEL

THERMOSTAT MODEL IC

OFF

17.6 (63.7)

16.6 (61.8)

25.6 (78.1)

24.6 (76.3)

33.6 (92.5)

32.6 (90.7)

Thermostat Specifications

Fan Motor Specifications

CONNECTION

20°C

(68°F)

25°C

(77°F)

GRAY

TEMPERATURE

°C (°F)

INDICATION

RESISTANCE VALUE

(Ω)

RED

INTERNAL THERMAL FUSE

BLACK

CAPACITOR

MODEL

T.F

RAS-07CH4, RAS-09CH4

RAS-07CH4, RAS-09CH4 RAC-07CH4, RAC-09CH4

M= 541.0 A2 = 87.6 A1 = 148.3 A3 = 147.4

PHASE

SINGLE

RATED VOLTAGE

220 – 240V

RATED FREQUENCY

50 Hz

OUTPUT

10 W 20 W

POLE NUMBER

M= 551.6 A2 = 89.3 A1 = 151.2 A3 = 150.3

= 348.2

= 284.6

MAIN PARTS COMPONENTS

THERMOSTAT

FAN MOTOR

Page 36

– 34 –

MODEL RAC-07CH4

COMPRESSOR MODEL G333DB2Z

PHASE SINGLE

RATED VOLTAGE 220 – 240 V

RATED FREQUENCY 50 Hz

LOCKED ROTOR CURRENT 22 A

POLE NUMBER 2

Compressor Motor Specifications

CONNECTION

20°C

(68°F)

75°C

(167°F)

(Ω)

RESISTANCE VALUE

ORANGE

RED

WHITE

CAUTION

RED

ORANGE

WHITE

CAPACITOR

RA = 4.072 RM = 3.938

RA = 4,896 RM = 3.787

RAC-09CH4

G533QB9Z

SINGLE

220 – 240 V

50 Hz

22 A

RA = 4.372 RM = 3.154

RA = 5.315 RM = 3.834

When the refrigerating cycle has been operated for a long time with the capillary tubes clogged or crushed or with too little refrigerant, check the color of the refrigerating machine oil inside the compressor. If the color has been changed conspicuously, replace the compressor.

COMPRESSOR MOTOR

When the Air conditioner has been operated for a long time with the capillary tubes clogged or crushed or with too little refrigerant, check the color of the refrigerating oil inside the compressor. If the color has been changed conspicuously, replace the compressor.

Page 37

– 35 –

(102°C)

(96°C)

(167°C)

(165°C)

2 3

(3.0A)

PRINTED WIRING BOARD ASSEMBLY

INDOOR UNIT OUTDOOR UNIT

HSL

COMPRESSOR

: FAN MOTOR

: POWER SWITCH

: 1,000 PF CAPACITOR

: FAN MOTOR PROTECTOR (INTERNAL)

:1 µF CAPACITOR

:35µF CAPACITOR

: 2.5 µF CAPACITOR

: FAN MOTOR PROTECTOR

: LINE CORD

: TERMINAL BOARD

: OUTDOOR FAN RELAY

: THERMAL FUSE FOR PCB

: REVERSING VALVE

: POWER RELAY

: THERMAL FUSE FOR TERMINAL BOARD

: SURGE ASSORBER

: THERMISTOR

: TRANSFORMER

: OVERLOAD PROTECTOR

: VARISTOR

: SOLID STATE RELAY FOR FAN (FAN SSR)

: FUSE

: REVERSING VALVE RELAY

: AUTO SWEEP MOTOR

BLU : BLUE

GRY : GRAY

BLK : BLACK

YEL : YELLOW

ORN : ORANGE

PNK : PINK

BRN : BROWN

GRN : GREEN

VIO : VIOLET

WHT : WHITE

RED : RED

WIRING DIAGRAM

MODEL RAS-07CH4, RAC-07CH4

Page 38

– 36 –

2 3

BRN

GRN +

YEL

GRN

(96°C)

(102°C)

BLU

BLK

BRN

RED

BRN

ORG

GRY

GRY + YEL

WHT

BLK

GRY

BLK

GRY

RED

(RED)

BRN

WHT

WHT(WHT)

BLU

ORN

(ORN)

BLU

RED

WHT

BLU

YEL

GRY

WHT

BLK

GRY

BLU

CN4

CN12 (3.0A)

CN1

CN8

CN7

CN3

CN10

CN11

CN2

WHT

INDOOR UNIT

OUTDOOR UNIT

R901

UV LED

BOARD

Page 39

– 37 –

RESISTOR

POWER

TOLERANCE

RESISTANCE

FORMSYMBOL

R201

R202

R203

R204

R205

R206

R207

R210

R302

R303

R304

R307

R308

R309

R310

R311

R312

R313

R314

10K

2.7K

5.1K

10K

2.4K

18K

12.7K

10K

±5%

±2%

±5%

±1%

±5%

±1%

±5%

1/10W

1/16W

1/10W

1/16W

1/10W

1/16W

POWER

TOLERANCERESISTANCE

FORMSYMBOL

R401

R402

R403

R404

R405

R406

R411

R412

R413

R414

R501

R502

R503

R504

R505

R506

390

5.1K

10K

560

±5%

±2%

±5%

1/16W

1/10W

POWER

TOLERANCE

RESISTANCE

FORMSYMBOL

R601

R603

R606

R607

R608

R609

R610

R613

R614

R703

R702

R705

R707

R708

R801

R901

10K

5.1K

240

3.3K

750

±5%

±1%

±5%

±1%

±5%

1/16W

1/10W

1/16W

1/10W

1/4W

R410

10K

±5% 1/16W C

R611

R612

10K

±5%

1/16W

TYPERATING

FORMSYMBOL

C101

C102

C103

C104

C105

C106

C201

C202

C205

C206

C401

C501

C502

C503

C504

C601

C701

D (VX)

D (WX)

CAPACITOR

C301

C302

C303

C801

1000µ, 35V

100µ, 16V

100µ, 10V

33µ, 6.3V

0.1µ, 25V

1000P,AC250V

1µ, 400VAC

0.1µ, 25V

33µ, 10V

0.1µ, 25V

1000P, 50V

MODEL NO.

FORMSYMBOL

Q301

TRANSISTOR

2SC2462LC

GA1A4M

Q201

Q202

Q302

Q502

Q503

Q501

2SA1121SCT

GA1A4M

DTC114EUA

MODEL NO.

FORMSYMBOL

D403

DIODE

S1WB20

DB101

D401

DAN202K

DAP202K

MODEL NO.

FORMSYMBOL

SURGE PROTECTORS

450NR12D

VARISTOR 1

VARISTOR 2

450NR12D

SURGE ABSORBER

DSA-362MA-05

MODEL NO.

FORMSYMBOL

IC401

MC7&12CT

TLP3507

RPM6938-V4

TLP3507

REG1

REG2

IC501

SSR-S

IR701

SSR-L

MC7&05CT

BR24C02F

ULN2003ANS

IC1

HD6433712

SSR-H

TLP3507

MODEL NO.

FORMSYMBOL

BUZZER

PKM13EPYBZ1

MODEL NO.

FORMSYMBOL

ZENER DIODE

RLZB.8AZD201

MODEL NO.

FORMSYMBOL

OSCILLATOR

EFOEC8004A4OSC1

MODEL NO.

FORMSYMBOL

SWITCHES

EVQP05R-SWSW701

SSSS9AE

SERVICE

MODEL NO.

FORMSYMBOL

RELAYS

DFT-RELAY

POWER RELAY

G5N-RELAY

OUTDOOR

FAN RELAY

G5N-RELAY

REVERSING

VALVE RELAY

MODEL NO.

FORM

SYMBOL

LD703

LED

LD702

SLR-332DC3F

SLR-332YC3F

COLOUR

YELLOW

ORANGE

NOTES:

TYPE OF CAPACITOR

FILM

CERAMIC

ELECTROLYTIC

FORM

HAND INSERT

SMT

RADIAL

AXIAL

MODEL RAS-07CH4, RAS-09CH4

Page 40

RESISTANCE: 10K ohms 2% (25 C) B-CONSTANT: 3950K 2% (B25/50)

(MED)

(LOW)

(HIGH)

HEAT EXCHANGER THERMISTOR

ROOM TEMPERATURE THERMISTOR

STEPPING MOTOR

REMOCON ID (A/B SELECTION)

TEMPORARY SW

EXTENTED MEMORY

INDICATING P.C.B

ROOM TH.

HEX. TH.

FAST FEED

TEST INDICATION MODE

NO USE

INDOOR FAN OVER-CURRENT

PWM VOLTAGE FEEDBACK

SINGLE/MULTI

REMOCON I/P

AUTO-SWING

BUZZER

CURRENT TRANS

HA O/P

DEHUMIDIFY

OPERATION

TIMER

FILTER/ POWERFUL

DASH

COMP. OPER.

COOL/DEHUM.

HA I/P

REMOCON SELECTION

FORCED COOL

REMOCON ID

TEST INDICAT.

SELECTION

NICE TEMP.

CANCEL

ABNORMAL FAN CURRENT

STICK RELAY

POWER RELAY

OUTDOOR FAN RELAY

REVERSING VALVE R.

FAN S

FAN LO

FAN HI

HEATER

LOUVER

CCW

NO USE

PWM O/P

SCL

SDA

EEPROM

NO USE

EEPROM

SELECTION

ONE TOUCH SUPER COOL

HEX. TEMP

RANGE SELECTION

LED OUTPUT

LIGHT RECEIVING UNIT

LD702 (TIMER)

LD703 (OPERATION)

R707

OSC1

NORMAL

COOL

SERVICE SW

IR701

RESET

TEST

RESISTANCE: 10K ohms 3% (25 C) B-CONSTANT: 3950K 2% (B25/50)

R708

ID2

(EP-3P)

0V0V

(10,D)

C504

(14,H)

Q501

R501

R503

Q502

Q503

R505

R208

1P1

(12,E)

(12,K)

MAIN BOARD

315

CN4

WHITE

R414

R313

R314

(14,H)

12V

(12,K)

(12,E)

Q302

IVORY

(ZR-8P)

CN3

(SZN-8P)

WHITE

REVERSING VALVE

OUTDOOR FAN RELAY

POWER RELAY

FAN SSR-S

FAN SSR-L

FAN SSR-H

12345678

87654321

R207

ID1

SW701

(ZR-6P) IVORY

CN2

OSC

6 5 4 3 2

10111213141516

9 8 7

OSC2VSSX1X2AV

TEST

7AN6AN5AN4AN3AN2AN1AN0

RES

IRQ

TM0E

P46

P45

P44

P43

P42

P41

P40

P16

P50

P51

P5 4

333435363738394041424344454647

P5 2

P5 3

P5 5

P5 6

P5 7

P1 7

P6 0

P6 1

P6 2

P6 3

P6 4

P6 5

P6 6

P6 7

P7 0

IC1

1 2 3 4 5 6

C702

BZ1

12V

B.Z

R801

HP BOARD

R611

R613

IC501

CN5

(ZR-4P) IVORY

R404

R403

D403

2 1

D401

IC401

PROM)

C401

1 2 3 4

R410

R411

R412

R413

R405

R406

R206

R312

R311

C205

C302C301

R210

R705

R703

R702

12V

R608

R606

R607

R603

R601

10 11 12 13 14 15 16

7 6 5 4 3 2 1

C206

R402

R401

12V

(SZN-6P) WHITE

CN2

(ZR-5P) IVORY

CN10

C601

1 2 3 4

(XH-4P) BLACK

CN9

R610

R609

R612

R614

R204

R203

R201

R202

C201

Q201

Q202

12V

R205

ZD201

C202

(10,D)

R304

Q301

CN6

(ZR-3P) IVORY

CN7

(PH-4P) WHITE

R302

R307

R309

R310

BLACK

GRAY

R308

0V0V

R303

INDOOR FAN MOTOR

WHITE

(XH-6P)

CN11

FAN SSR-H

C501

C503

C502

FAN SSR-S

FAN SSR-L

REVERSING VALVE RELAY

OUTDOOR FAN RELAY

BLACK

BROWN

C106

C104

C102

(YELLOW/ GREEN)

(BLUE)

(BROWN)

LINE CORD

THERM FUSE (96°C) FOR P.C.B.

THERM FUSE (102°C) FOR TERMINAL A,B

(EH-2P) WHITE

TRANSFORMER

POWER RELAY

VARISTOR2

VARISTOR1

POWER SWITCH

DB101

C101

12V

OGI

C103

REG1

C105

3A FUSE

CN12

CN8

REG2

AC240V 50Hz

EARTH WIRE (GREEN)

SURGE ABSORBER

TERMINAL BOARD

(EP-4P)

WHITE

R502

R504

R506

C303

BLUE

WHITE

RED

BLACK BLUE WHITE

CN1

(EH-2P) WHITE

C701

R901

UV LED BOARD

– 39 –

MODEL RAS-07CH4, RAS-09CH4

Page 41

AIR BLOW CHANGE TO "H" FORCILY BY INPUTING "PD CUT 2" AIR BLOW MAKE A POSSIBLE TO CHANGE AIR BLOW AT TEMP. T

AIR BLOW RETURN TO THE ORIGINAL SETTED TEMP. AT TEMP T

TEMPERATURE OF INDOOR HEAT EXCHANGER THERMISTOR

PD CUT 1 PD CUT 2 PD CUT 3 FAN RELAY H FAN RELAY L POWER RELAY STICK RELAY EXTERNAL FAN RELAY 4-WAY VALVE RELAY

(0.5)

(0.5) (0.5)

(0.5)

1 sec

(1 sec)

Fan relay H

Power relay

Stick relay

External fan relay

Reversing valve relay

Timer lamp

Indoor heat exchanger thermistor temperature

Low-temperature input

Air-blow mode (A) (B)

HL H LL L SS S

Automatic L ❈L

Room temperature

← at the start of →

operation

Cooling The set temper-

ature shall be 27˚C. Sensor dehumidification

The set temper-

ature shall be 2

degrees below the

room temeerature

at the start of

operation.

Heating The temperature

shall be 23˚C +

temperature shift

amount.

27˚C

23˚C

Start/stop button Fan relay H

Stick relay

2" 2"2"2"

+3 +2 +1

-1

-2

-3

Set temperature

Start/stop button Fan relay H Fan relay L Fan relay S Power relay Stick relay External fan relay

Operation lamp

H S L S L H S

S L L

+3 +2 +1

-1

-2

-3

Set temperature

Start/stop button Fan relay S

Power relay Stick relay

Operation lamp

S S S

30" 30"

External fan relay

-1

-2

-3

-4

0.66 deg

0.33 deg

Set temperature

Start/stop button Fan relay S

Power relay Stick relay

Operation lamp

30"

External fan relay

T"T"

30"

+3 +2 +1

-1

-2

-3

-4

(Set temperature)+ (Temperature shift amount)

Start/stop switch

Fan relay H

Fan relay L

Fan relay S

Power relay

Stick relay

External fan relay

4 way valve relay

Heater relay 10"

Pilot lamp

Hot keep lamp

LHS

HSL

30"

10"

Start/stop button operation lamp

Operation and stop are repeated independent of timer reservations

Start/stop button Reservation Cancel Operation lamp Timer lamp Timer memory

(OFF timer during stop) (Cancel)

(Change of the reservation time)

Start/stop button Reservation Cancel Operation lamp Timer lamp Timer memory

(ON timer during operation)

(Cancel)

(Change of the reservation time)

– 41 –

BASIC MODE

Note:

• The min. ON time of the power relay is 3 minutes, and the min. OFF time also is 3 minutes.

(2) In other modes than “Automatic” Same

as above (but operation is made with the velocity set at the time of operation start).

• Operation in the previous circulation mode

• Operation in “HI” mode

• Operation in “MED” mode

• Operation in “LO” mode

• Only circulation with cut

velocity is executed, independent of the thermostat signal.

(1) Strong

•

“LO” and “Stop” are repeated according to the thermostat

signal, independent of the setting.

Automatic

MED

Thermostat operation H → HI L → MED S → LO

• The power relay is delayed by 2 seconds from the start of thermostat operation.

(1) In case of “Automatic” mode

•“HI”, “MED”, or “LO” operation is executed according to the thermostat signal. (Refer to “Thermostat operation”.)

• Same as on the left.

(1) When the set temperature is lower than the room temperature

• The min. ON time of the power relay is 3 minutes, and the min. OFF time also is 3 minutes.

• The indoor fan is not delayed with operation start by start/ stop button ON.

• The indoor fan is delayed by 5 sec with operation start by thermostat operation.

(2) Set temperature higher than room temperature

Notes:

• Forced operation by start/ stop button ON is executed even with thermostat OFF.

• The room temperature 30 sec after operation start, minus 0.66 deg, becomes the set temperature.

• When the room temperature is 16°C or lower, 16°C becomes the set temperature.

• The other operations are the same as for (1).

•“HI”, “MED”, “LO”, and “Stop” are repeated according to the thermostat signal and time.

•“MED”, “LO”, and “Stop” are repeated according to the thermostat signal and time.

•

“LO” and “Stop” are repeated according to the thermostat signal and

time.

• The “Automatic” speed mode for each operation mode is used independent of the setting. “Week” at the time of “Sensor dehumidification”.)

• The operation mode at the start of operation differs as shown below according to the room temperature.

• A shift is not accepted at the time of operation start.

• There is no switching between modes after start of operation.

• When the operation is started again within 20 min. after stop with the start/stop button, operation will be executed in the previous mode.

• The operation details are the same as for each operation mode.

• The set temperature is set with the room temperature adjustment button. Correction by V, ±3˚C is possible with. At this time, the operation mode judgement temperature also is shifted at the same time. However, correction is possible only in cooling operation mode, but not in “Sensor dehumidification” mode.

Example for “HI” circulation mode

Notes:

• The min. ON time of the power relay is 3 minutes, and the min. OFF time also is 3 minutes.

• In automatic circulation mode, “HI” in section (B) occurs only the first time.

OFF timer

ON timer

Start/stop button, basic mode

Timer operation

Circulation mode

Operation mode

Control function

Fan Cooling Sensor dehumidification Heating Automatic

Heating load reduction and Pd cut

Reversing valve lock protection

• All relays are stopped by lowtemperature input.

• Not accepted dur ing hot keep, during compressor stop, during defrosting and during forced 3 minutes.

• Accepted only dur ing heating operation.

• Receovery at the time of stop by low-temperature input is reset recovery.

• The timer lamp flashes at the time of stop.

Page 42

(Reverse cycle defrosting)

10 min.

min.

(Silencing period)

30 sec

(Cycle balancing time)

30 sec

(Defrosting prohibition

time)

60 min.

min.

-5

-1

Sensor dehumidification

Cooling strong

Automatic Heating Fan Sensor dehumidification

Cooling

Heating Cooling

Yes Yes Yes

Yes

Yes (automatic)

Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No

Yes No

Heating wireless

Item Operation switching

Temporary switch Service switch

Nice temperature reservation Automatic fresh defrosting Defrosting Pd cut 1 Pd cut 2 Pd cut 3 Heating load reduction External fan relay Reversing valve relay Reversing valve lock protection Sleep circuit

Heater operation at the time of sensor dehumidification

Automatic blowing direction Filter sign

Wireless mode

Item

Cooling, Sensor dehumidification

16 17.6 ON temperature (Thermostat relay) power relay (°C)

24 25.6

Thermostat operation

32 33.6

Heating 16 19.6

24 27.6

32 35.6 Differential (°C) 0.33

– –

Low-temperature (T1) ON (°C) 5.0 defrosting Reset (°C) 9.0 Preheating (T2) Reset (°C) 17.0

ON (°C) 15.0

– –

Pd cut 1 (T3) ON (°C) 48.66

(T4) Reset (°C) 45.66

Pd cut 2 (T6) ON (°C) 55.0

(T7) Reset (°C) 49.0 (T5) Fan Relay H → Original (°C) 35.0

Pd cut 3 (T8) ON (°C) 63.0

(T9) Reset (°C) 55.0

Table 1 Specifications

Table 2 Sensor operation values

Indoor heat exchanger thermistor temperature

Fan relay H

Power relay

Stick relay

Outside fan relay

Operation lamp

Fan relay S

Power relay

Stick relay

Outside fan relay

Operation lamp

Min. 3 minutes

15 sec

15 minutes-T

30 sec

Completion

Defrosting start

30 sec

2 sec

10 sec

Start/stop switch

Defrosting signal

Preheating signal

Fan relay H

Fan relay L

Fan relay S

Power relay

Stick relay

Outside fan relay

Reversing valve relay

Heater relay

Operation lamp

Hot keep lamp

2 sec

10 sec

30 sec 60 sec

3 minutes

A TATB TC

30 sec

60 sec

15 sec

Start/stop switch Thermostat signal Preheating signal Fan relay H Fan relay L Fan relay S Power relay Hot keep lamp

2 sec

3 minutes

30 sec 30 sec

15sec

30 sec 30 sec

"Strong" circulation

2 sec

Dry Button

Set temperature

Fan relay L

Power relay

Stick relay

Operation lamp

LLL

–1

–2

–3

1deg up

32 sec

0.2 sec

0.2 sec 0.2 sec

0.2 sec

32 sec

60 minutes

6 min

1 min

6 min

1 min

LLL

Dry Button

Set temperature

Fan relay L

Power relay

Stick relay

Operation lamp

1 deg up

-1

-2

-3

-4

0.66deg

0.33deg

32 sec

60 minutes

32 sec

0.2 sec 0.2 sec 0.2 sec

0.2 sec

– 43 –

Operation mode

Control function

Fan Cooling Sensor dehumidification Heating Automatic

7 Preheating

operation

Defrosting (including automatic fresh defrosting).

Notes:

• Even when the preheating signal is not given as input, heating operation is started when 3 minutes have passed for T.

• Preheating operation is executed at the time of operation start and after completion of defrosting, and at all other times, there is no operation, independent of the preheating signal.

• For the time TE after start of heating operation, defrosting will not be executed even when the defrosting signal is given as input.

• When the reserve cycle defrosting T

has continued for the time shown in the table on

the left, the operation advances to T

and TC independent of the defrosting signal.

• When the power relay becomes ON after expiration of the time T

, defrosting will be

started immediately with input of the defrosting signal.

• Once defrosting has been completed, the defrosting signal is not accepted for the time T

• When a defrosting signal has been given as input at the time of stop by means of the start/stop switch or at the time of OFF timer count-up, defrosting is executed before operation stop.

• The defrosting signal is not accepted at the time of overload input.

Other detailed specifications

1. When the room temperature rises within 3 minutes after thermostat OFF during cooling operation with automatic velocity, the blowing velocity changes in the order of S ← L → H in the same way as at the time of thermostat ON.

2. In case of Tele. control input during stopped ON timer, operation will be started at that time and the timer will be cleared.

3. In case of Tele. control input during operation of the OFF timer, the operation will be stopped at that time and the timer will be cleared.

4. Even when operation stop is executed at the time of outside fan OFF by overload, automatic fresh defrosting will not be executed.

5. In case of switching to “Heating” during “Automatic” heating operation, the operation will be continued as it is when the thermostat is ON. 3 min delay will not be entered. However, the set room temperature and the blowing velocity will be according to the remote control signal. The same applies for switching from “Heating” to “Automatic” heating.

6. In case of switching from “Sensor dehumidification” operation to “Cooling”, as it is when the thermostat is ON. 3 min delay will not be entered. However, the set room temperature and the blowing velocity will be according to the remote control signal. The same applies for switching from “Cooling” to “Sensor dehumidification”. The same also applies for “Automatic” sensor dehumidification, cooling “Sensor dehumidification”, “Cooling”.

7. The filter sign lights after operation of the indoor fan for 100 hours. The time is cleared by the filter switch.

8. After entry into trouble mode (when the indication lamp is flashing), the rapid feed mode can not be changed.

9. When operation by nice temperature reservation is executed during sleep operation, normal operation will be continued, and the advance time becomes the temperature difference between the set temperature without sleep shift and the room temperature.

10.

The 60 minutes of defrosting prohibition are counted from thermostat ON after start/stop switch ON. When the thermostat is OFF at the time of start/stop switch ON, the 60 minutes will be counted from the time of thermostat ON. The initial OFF time is not counted. Counting starts when the thermostat becomes ON, and the count then continues even if the thermostat becomes OFF.

11. In case of switching from “Heating” the reversing valve is held for 3 minutes.

12.The defrosting signal is not accepted with overload input, and the operation becomes as shown below when the overload input disappears.

(1) When previously the defrosting

signal existed without overload input, defrosting will start immediately.

(2) In cases other than the above,

defrosting will be executed with a defrosting signal in the condition without overload input.

• At the time of heating operation mode, the same operation as for heating is executed.

• Defrosting of each operation mode is executed.

Notes:

• Focused operation by Dry button ON is executed even with thermostat OFF.

• The room temperature 30 sec after operation star t minus 0.33 deg., becomes the set temperature.

• When the room temperature is 16°C or lower, 16°C becomes the set temperature.

• The other operation are the same as for (I).

• The indoor fan is not delayed in operation when the Dry button is pressed ON.

Low Power Dehumidification

(2) Set temperature higher than room temperature.(2) When the set temperature is lower than the room temperature.

• The min. ON time of the power relay is 3 minutes, and the min. OFF time is also 3 minutes.

• The indoor fan is not delayed in operation when the Dry button is pressed ON.

Page 43

– 45 –

sec.

––

––––––

sec.

––

Timer-Lamp, break-down checking in blinking sign.

Check the break-down factor from the frequency of timer-lamp blinking.

Forced cool operation

Running force-cool operation by service switch. Service switch at indoor P.W.B. has been activated.

IC 401 Data read wrongly

In case that data read from IC401 is wrong.

Heat exchanger thermistor error

Heat exchanger thermistor open or short-circuit detected.

Room thermistor error

Room thermistor error open or short-circuit detected.

(1) Service switch at Indoor has

been set to “COOL” position.

(2) Control P.W.B. damaged.

IC401 is not in order.

(1) Thermistor

(2) Indoor - control circuit board.

(1) Thermistor

(2) Indoor - control circuit board.

No. Mode of Timer-Lamp blinking Indication Factor Estimated Break-Down Part

1 2 times

2 13 times

3 14 times

4 15 times

( – – 0.5 second on, 0.5 second off.)

Page 44

– 46 –

ø6.35

11.0

9.0

9.52

Reversing Valve

Suction Tank

Service Valve

(3/8)

Service Valve

(1/4)

Strainer

Capillary

Charging Pipe

Strainer

Union

(1/4)

Outdoor Unit

Union

(3/8)

Cooling Defrost

Comp

9.52

6.35

4.76

6.35

8.0

Indoor Unit

6.35

11.0

9.0

9.52

Reversing Valve

Suction Tank

Service Valve

(3/8)

Service Valve

(1/4)

Strainer

Capillary

Charging Pipe

Strainer

Union

(1/4)

Outdoor Unit

Union

(3/8)

Comp

COOLING DEFROST

9.52

6.35

4.76

6.35

8.0

Indoor Unit

HEATING

REFRIGERATION CYCLE

Page 45

– 47 –

INPUT SIGNAL OPERATING SPECIFICATION REFERENCE

OPERATION OPERATION MODE AIR DEFLECTOR

PRESENT CONDITION

KEY INPUT

INTERNAL FAN

(THERMO. ON)

INTERNAL FAN

OFF

(THERMO. OFF)

MAIN SWITCH

OFF

CHANGE OF

OPERATION

STOP

DURING

OPERATION

DURING

OPERATION

STOP

DURING

OPERATION

DURING

OPERATION

EACH MODE

AUTO COOL

COOL

FAN

AUTO DRY

DRY

AUTO DRY

DRY

COOL

FAN

DRY

CIRCULATOR

EACH MODE

STOP SWINGING AND MODE BECOMES INITIALIZING

CONDITION.

INITIALIZING CONDITION OF EACH MODE.

ONE SWING (CLOSING AIR DEFLECTOR)

1 DOWNWARD

2 UPWARD

INITIALIZE

1 DOWNWARD

INITIALIZE

1 DOWNWARD

2 UPWARD

STOP AT THE MOMENT.

START SWINGING

1 DOWNWARD

2 UPWARD

3 DOWNWARD

STOP AT THE MOMENT.

ONE SWING (CLOSING AIR DEFLECTOR)

1 DOWNWARD

2 UPWARD

INITIALIZE AT NEXT

OPERATION.

INITIALIZE AT NEXT

OPERATION.

STOP

DURING ONE SWING

STOP

DURING SWINGING

TEMPORARY STOP

DURING SWINGING

STOP

DURING ONE SWING

STOP

DURING ONE SWING

STOP

DURING SWINGING

DURING

INITIALIZING

STOP

DURING SWINGING

AUTO SWING FUNCTION

STOP SWINGING TEMPORARILY.

(SWING MODE IS CLEARED IF SWING COMMAND IS

TRANSMITTED DURING TEMPORARY STOP.)

START SWING AGAIN.

Page 46

– 48 –

SERVICE CALL Q & A

Cooling operation

While cooling, the compressor sometimes stops abruptly.

If cooling is performance when the room temperature is low, frost may stick on the heat exchanger of unit.

Dehumidifying operation

The fan speed does not change during a dehumidifying operation.

The fan speed is always QUIET at a dehumidifying operation.

To improve the dehumidification efficiency, QUIET fan speed operation is performed. Therefore the air is cold. This is not a trouble.

At a dehumidifying operation, the actual room temperature is compared with the room temperature setting when starting the operation and the operation is as follows.

1) When actual room temperature > room temperature setting The operation is according to the room temperature setting on the remote controller.

2) *When actual room < room temperature setting Regardless of the room temperature setting, the temperature is automatically set slightly lower than the room temperature.

In this case, the status in 2) is the case and, therefore, the operation by the room temperature control is impossible. Turn off the ON/OFF button, set the room temperature to a new value and turn on the operation by the ON/OFF button.

The operation does not stop even by raising the room temperature setting of remote control at a dehumidifying operation.

Cold air comes out during a dehumidifying operation.

This is the status in 2) of (A4). The temperature is set a little lower than the room temperature to carry out a dehumidifying operation as far as possible.

In the dehumidifying mode, the remote controller is set slightly higher than the room temperature but the operation starts.

Check whether frost sticks on the heat exchanger of unit or not. Wait for 3 - 4 minutes until the frost melts.

Page 47

– 49 –

Heating operation

Air does not come out when starting a heating operation.

When starting the operation, the heat exchanger is cold and, therefore, the fan is stopped. Wait 2–3 minutes.

It is not a trouble. The fan is stopped to avoid cold wind.

Air does not come out sometimes while in a heating operation.

Defrosting is on. Wait for 5–10 minutes until the outdoor unit is defrosted.

The fan speed is set to “HI” or “MED” but the heating operation starts with a LO fan speed.

The heating operation starts with a LO fan speed for 30 seconds. If the fan speed is set to HI, the operation starts with LO fan speed, followed by MED fan speed for 30 seconds and then by HI fan speed.

The operation stops during a heating operation while the room temperature is set at “30”.

If a heating operation is performed when the exterior temperature is high, the operation may stop to protect the equipment.

The outdoor fan does not move at a heating operation by the service switch.

Q10

A10

It is not a trouble. When heating, the outdoor fan is stopped to avoid excessive pressure rise.

Auto fresh defrosting

Heating has been turned off by the main operation but the “Hot keep lamp” lights and the outdoor unit operations.

Q11

A11

“Auto fresh defrosting” operates. When stopping the operation, whether the outdoor unit is frosted or not is checked and, if in the affirmative, defrosting is performed before stopping the operation.

Page 48

– 50 –

How is the automatic operation mode determined?

Q12

Automatic operation

A12

According to the room temperature, cooling, heating or dehumidifying operation automatically selected.

Cooling:

When room temperature is approx. 27°C or higher.

Dehumidifying:

When room temperature is between approx. 23°C and 27°C.

Heating:

When room temperature is approx. 23°C or lower.

At an automatic operation, changing the fan speed change switch does not vary the fan speed.

Q13

A13

The fan speed is automatically determined.

The room temperature cannot be controlled at an automatic operation.

Q14

When changing the room temperature setting in an automatic operation, the next automatic operation mode is determined by new room temperature setting. If, for example, the room temperature setting is 2°C lowered for example, the operation mode is as follows.

Cooling: When room

temperature is approx. 27°C or higher.

Dehumidifying:

When room temperature is between approx. 23°C and 27°C.

Heating: When room

temperature is approx. 23°C or lower.

A14

It is automatically set as follows.

At cooling: Set at 27°C

At dehumidifying:

Set slightly lower than room temperature

The room temperature setting can be raised 3°C by “” or lowered 3°C by “ V ”.

Page 49

– 51 –

Common, etc.

There is a difference between the room temperature setting and actual room temperature.

Q15

A15

There may be a difference between the room temperature setting and actual room temperature on account of the room structure, air flow, etc. If there is a difference, adjust the set temperature to keep living space at a comfortable temperature.

What will happen if the time setting is changed while in a timer operation?

Q16

A16

A timer operation is performed until the time after changing the time setting.

Wireless remote controller

A17

1) When the operation mode is “Automatic”, the fan speed is automatically fixed to “Automatic”.

2) At an “Automatic” operation, the room temperature setting is not displayed. The room temperature is automatically set as follows.

At cooling Set at 27°C.

At dehumidifying Set to a temperature slightly lower than the room temperature.

At heating Set at 23°C.

3) At an “Automatic” operation, the room temperature setting is not displayed. However, every pressing “ ” or “ V ” button changes 1°C within the range of: 27±3°C when cooling 23±3°C when heating

The room temperature sensing thermistor in the indoor unit detects the room temperature and, according to the particular temperature, automatically performs “Cooling” or “Dehumidifying” operation. The value indicated not at an “Automatic” but manual operation is not the actual room temperature but the room temperature setting.

1) When the “Automatic” operatoin mode is selected, “Automatic” does not change by pressing the fan speed select button.

2) The room temperature setting is not displayed.

3) Pressing the room temperature control button develope transmit mark “” and sounds a receive sound but does not display the room temperature setting.

Q17

Page 50

– 52 –

Wireless remote controller

A18

The

room temperature os settable within the range of 16 - 32 and not beyond.

When the room temperature setting is “16”, pressing the room temperature control button “ V ” causes no transmission. At “ 32”, pressing “” causes no transmission either.

Q18

A19

Isn’t the time over the preprogrammed time? As soon as the preprogrammed time is reached, the time setting disappears.

In spite of timer “Preprogram” , setting is extinguished.

Q19

A20

At a

“Dehumidifying” operation, the “LO” fan speed is forcibly selected.

After selecting a “Dehumidifying” operation mode, the fan speed mode remains “LO” fan speed.

Q20

When setting the current time, its indication blinks for approxinately 3 minutes.

Page 51

– 53 –

PARTS LIST AND DIAGRAM

MODEL RAS-07CH4, RAS-09CH4

Page 52

– 54 –

NO.

PART NO.

Q’TY / UNIT PARTS NAME

RAS-07CH4

1 PMRAS-07CH4 001 1 CABINET

2 PMRAS-07CH4 004 1 LOW-COVER

3 PMRAS-07CH2 018 1 10W MOTOR

4 PMRAS-09C1 003 1 TANGENTIAL FLOW FAN

5 PMRAS-05C 013 1 P-BEARING ASSEMBLY

6 PMRAS-05C 004 1 BEARING COVER

7 PMRAS-26CHAI 001 1 FAN MOTOR SUPPORT

9 PMRAS-07CH4 002 1 DRAIN PAN ASSEMBLY

11 PMRAS-07CH4 003 1 FRONT COVER ASSEMBLY

12 PMRAS-05C 009 1 MOUNTING PLATE

13 PMRAS-07CH4 006 1 REMOTE CONTROL

14 PMRAS-07CH2 014 1 CYCLE ASSEMBLY

17 PMRAS-05C 041 1 STEP MOTOR

20 PMRAS-07CH2 003 1 PWB (MAIN AND INDICATION)

21 PMRAS-07CH4 005 1 PWB (POWER)

22 PMRAS-07CH4 007 1 TRANSFORMER

23 PMRAS-07CH2 006 1 TERMINAL (2P)

24 PMRAS-07CH2 007 1 TERMINAL (2P WITH THERMAL FUSE)

25 PMRAS-18CP2R 002 1 POWER SWITCH

26 PMRAS-07CH2 008 1 THERMAL FUSE FOR PWB

27 PMRAS-07CH2 012 1 THERMISTOR

29 PMRAS-10C3M 003 1 REMOTE CONTROL HOLDER

30 PMRAS-07CH4 008 1 UV LED UNIT

MODEL RAS-07CH4

Page 53

– 55 –

NO.

PART NO.

Q’TY / UNIT PARTS NAME

RAS-09CH4

1 PMRAS-07CH4 001 1 CABINET

2 PMRAS-07CH4 004 1 LOW-COVER

3 PMRAS-07CH2 018 1 10W MOTOR

4 PMRAS-09C1 003 1 TANGENTIAL FLOW FAN

5 PMRAS-05C 013 1 P-BEARING ASSEMBLY

6 PMRAS-05C 004 1 BEARING COVER

7 PMRAS-26CHAI 001 1 FAN MOTOR SUPPORT

9 PMRAS-07CH4 002 1 DRAIN PAN ASSEMBLY

11 PMRAS-07CH4 003 1 FRONT COVER ASSEMBLY

12 PMRAS-05C 009 1 MOUNTING PLATE

13 PMRAS-07CH4 006 1 REMOTE CONTROL

14 PMRAS-07CH2 014 1 CYCLE ASSEMBLY

17 PMRAS-05C 041 1 STEP MOTOR

20 PMRAS-09CH2 001 1 PWB (MAIN AND INDICATION)

21 PMRAS-07CH4 005 1 PWB (POWER)

22 PMRAS-07CH4 007 1 TRANSFORMER

23 PMRAS-07CH2 006 1 TERMINAL (2P)

24 PMRAS-07CH2 007 1 TERMINAL (2P WITH THERMAL FUSE)

25 PMRAS-18CP2R 002 1 POWER SWITCH

26 PMRAS-07CH2 008 1 THERMAL FUSE FOR PWB

27 PMRAS-07CH2 012 1 THERMISTOR

29 PMRAS-10C3M 003 1 REMOTE CONTROL HOLDER

30 PMRAS-07CH4 008 1 UV LED UNIT

MODEL RAS-09CH4

Page 54

– 56 –

MODEL RAC-07CH4, RAC-09CH4

Page 55

– 57 –

NO.

PART NO.

Q’TY / UNIT PARTS NAME

RAC-07CH4

1 PMRAC-07CH2 906 1 OVERLOAD PROTECTOR

2 RA-226 015 1 O.L.R. COVER

3 RA-226 016 1 COVER SUPPORT

4 PMRAC-05CV 901 1 FAN MOTOR SUPPORT

5 PMRAC-07G1 902 1 FAN MOTOR 20W

6 PMRAC-05CV 903 1 PROPELLER FAN

7 PMRAC-07CH2 901 1 CABINET

8 PMRAC-07CH2 902 1 ELECTRICAL COVER ASSEMBLY

9 PMRAC-05CV 906 1 SIDE PLATE (R)

10 PMRAC-05CV 907 1 SIDE PLATE (L)

11 PMRAC-05CV 908 1 HANDLE

12 PMRAC-09CHA1 903 1 D-GRILL

13 PMRAC-07CH4 901 1 COMPRESSOR 600W 10KG

14 RAC-2226HV 805 3 COMPRESSOR RUBBER

15 KPNT1 001 3 PUSH NUT

16 PMRAC-26CHA1 901 1 CONDENSER

17 PMRAC-26CHA1 902 1 2S-VALVE

18 PMRAC-10C7 906 1 3S-VALVE

30 PMRAC-10C8 905 1 FAN MOTOR CAPACITOR (1.5µF, 440V)

31 PMRAC-07CV1 006 2 TERMINAL BOARD (2P)

50 PMRAC-10C8 904 1 COMPRESSOR CAPACITOR (30µF, 440V)

51 PMRAC-07CH2 904 1 REVERSING VALVE

52 PMRAC-07CH2 905 1 COIL (REVERSING VALVE)

MODEL RAC-07CH4

Page 56

– 58 –

NO.

PART NO.

Q’TY / UNIT PARTS NAME

RAC-09CH4

1 PMRAC-09CH2 901 1 OVERLOAD PROTECTOR

2 RA-226 015 1 O.L.R. COVER

3 RA-226 016 1 COVER SUPPORT

4 PMRAC-05CV 901 1 FAN MOTOR SUPPORT

5 PMRAC-07G1 902 1 FAN MOTOR 20W

6 PMRAC-05CV 903 1 PROPELLER FAN

7 PMRAC-07CH2 901 1 CABINET

8 PMRAC-07CH2 902 1 ELECTRICAL COVER ASSEMBLY

9 PMRAC-05CV 906 1 SIDE PLATE (R)

10 PMRAC-05CV 907 1 SIDE PLATE (L)

11 PMRAC-05CV 908 1 HANDLE

12 PMRAC-09CHA1 903 1 D-GRILL

13 PMRAC-09CHV1 901 1 COMPRESSOR 750W 10KG

14 RAC-2226HV 805 3 COMPRESSOR RUBBER

15 KPNT1 001 3 PUSH NUT

16 PMRAC-26CHA1 901 1 CONDENSER

17 PMRAC-26CHA1 902 1 2S-VALVE

18 PMRAC-10C7 906 1 3S-VALVE

30 PMRAC-10C8 905 1 FAN MOTOR CAPACITOR (1.5µF, 440V)

31 PMRAC-07CV1 006 2 TERMINAL BOARD (2P)

50 PMRAC-10C8 904 1 COMPRESSOR CAPACITOR (30µF, 440V)

51 PMRAC-07CH2 904 1 REVERSING VALVE

52 PMRAC-07CH2 905 1 COIL (REVERSING VALVE)

MODEL RAC-09CH4

Page 57

– 59 –

PM NO. 0205E

Printed in Malaysia

RAS-07CH4 / RAC-07CH4 RAS-09CH4 / RAC-09CH4

Hitachi RAC-09CH4, RAC-07CH4 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual