Hitachi RAS 80YHA User Manual

SPLIT TYPE

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-80YHA/RAC-80YHA

INDOOR UNIT

OUTDOOR UNIT

RAS-80YHA

RAC-80YHA

Instruction manual

Page 1~22

To obtain the best performance and ensure years of trouble free use, please read this instruction

manual completely.

– 1 –

PRECAUTIONS DURING OPERATION

The product shall be operated under the manufacturer specification and

not for any other intended use.

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

accident.

When operating the unit with burning equipments, regularly ventilate the

room to avoid oxygen insufficiency.

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.

Please ensure that outdoor mounting frame is always stable, firm and

without defect. If not, the outdoor unit may collapse and cause danger.

Do not splash or direct water to the body of the unit when cleaning it as this

may cause short circuit.

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.

Please switch off the unit and turn off the circuit breaker during cleaning, the

high-speed fan inside the unit may cause danger.

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

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

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.

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

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.

This appliance is not intended for use by young children or infirm persons unless they have been

adequately supervised by a responsible person to ensure that they can use the appliance safely.

Young children should be supervised to ensure that they do not play with the appliance.

– 3 –

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

AIR FILTER

To prevent dust from coming into the

indoor unit.

(Refer page 21)

FRONT PANEL (AIR INLET).

INDOOR UNIT INDICATORS

Light indicator showing the operating

condition.

(Refer page 5)

HORIZONTAL DEFLECTOR

VERTICAL DEFLECTOR (AIR

OUTLET)

(Refer page 16)

REMOTE CONTROLLER

Send out operation signal to the indoor

unit. So as to operate the whole unit.

(Refer page 6)

OUTDOOR UNIT

AIR INLET (BACK, LEFT SIDE)

AIR OUTLET

Blow out warm air.

MODEL NAME AND DIMENSIONS

DEPTH (mm)

MODEL

WIDTH (mm)

1150

HEIGHT (mm)

245

315

RAS-80YHA

RAC-80YHA

333

875

925

– 4 –

OPERATION INDICATOR

TEMPORARY SWITCH

Temporary Switch

Press

Non-conductor Stick

Use this switch to start and stop when the remote

controller does not work. [Use non-conductor stick

(example toothpick)]

G By pressing the temporary switch, the operation is

done in previously set operation mode.

G 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.

INDOOR UNIT INDICATORS

TIMER LAMP

This lamp lights when the timer is working.

OPERATION LAMP

This lamp lights during operation.

The OPERATION LAMP flashes in the following cases

during heating.

(1) During preheating

For about 2–3 minutes after starting up.

(2) During defrosting

Defrosting will be performed about once an hour

when frost forms on the heat exchanger of the

outdoor unit, for 5–10 minutes each time.

FILTER LAMP

When the device is operated for a total of about 200

hours, the FILTER lamp lights to indicate that it is time

to clean the filter. The lamp goes out when the

“

(AUTO SWING)” button is pressed while the

device is on “STANDBY MODE”.

– 5 –

NAMES AND FUNCTIONS OF EACH PART

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.

G Signal emitting window/transmission sign

Point this window toward the indoor unit when controlling it.

The transmission sign blinks when a signal is sent.

G Display

This indicates the room temperature selected, current time, timer status,

function and intensity of circulation selected.

G START/STOP button

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

G 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).

G AUTO SWING button

Controls the angle of the horizontal air deflector.

G TEMPERATURE buttons

Use these buttons to raise or lower the temperature setting. (Keep pressed,

and the value will change more quickly.)

G SLEEP button

Use this button to set the sleep timer.

G TIME button

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

G RESET buttons

G 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.

G PARALLEL SWING button

Controls the angle of the vertical air deflectors to parallel.

G SYMMETRY SWING button

Controls the angle of the vertical air deflectors to symmetry.

G TIMER control

Use this button to set the timer.

G OFF-TIMER button Select the turn OFF time.

G ON-TIMER button Select the turn ON time.

G RESERVE button Time setting reservation.

G CANCEL button Cancel time reservation.

Precautions for Use

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

G In direct sunlight.

G In the vicinity of a heater.

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

and protect it from water.

G 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.

G If you press the FUNCTION selector button during operation, the

device may stop for about 3 minutes for protection.

– 6 –

VARIOUS FUNCTIONS

I Auto Restart Control

If there is a power failure, operation will be automatically restarted when the power is resumed with previous operation mode

and airflow direction.

(As the operation is not stopped by remote controller.)

If you intend not to continue the operation when the power is resumed, switch off the power supply.

When you switch on the circuit breaker, the operation will be automatically restarted with previous operation mode and airflow

direction.

Note: 1. If you do not require Auto Restart Control, please consult your sales agent or OFF by remote control.

2. Auto Restart Control is not available when Timer or Sleep Timer mode is set.

AUTOMATIC OPERATION

The device will automatically determine the mode of operation, HEAT, COOL or DEHUMIDIFY depending on the current room

temperature. The selected mode of operation will 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.

If the mode automatically selected by the unit is not satisfactory, manually change the

mode setting (heat, dehumidify, cool or fan).

START

STOP

Press the

Operation starts with a beep.

Press the button again to stop operation.

(START/STOP) button.

RESET

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

°C

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.

Press the

(FAN SPEED) button, AUTO and LOW is available.

I Condition of Automatic Operation

Initial room temperature

Function

Temperature setting

27°C

FAN SPEED

(approx.)

HI at start, MED or LOW

after the preset temperature

is reached

Over 27°C

23~27°C

COOL

DEHUMIDIFY

HEAT

Slightly lower than the

room temperature

LOW

HI at start, MED or LOW

after the preset temperature

is reached

Under 23°C

23°C

– 7 –

HEATING OPERATION

G 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.

Press the FUNCTION selector so that the display indicates

(HEAT).

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 or LOW 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

buttons (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.

Press the

(START/STOP) button. Heating operation starts

START

STOP

with a beep. Press the button again to stop operation.

I As the settings are stored in memory in the remote controller, you only

have to press the (START/STOP) button next time.

– 8 –

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.

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).

°C

The range of 20-26˚C is recommended as

the room temperature for dehumidifying.

START

STOP

Press the

(START/STOP) button. Dehumidifying operation

starts with a beep. Press the button again to stop operation.

I As the settings are stored in memory in the remote controller, you

only have to press the (START/STOP) button next time.

I Dehumidifying Function

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.

– 9 –

COOLING OPERATION

Use the device for cooling when the outdoor temperature is 21-43°C.

If humidity is very high (over 80°C) indoors, some dew may form on the air outlet grille of the indoor unit.

Press the FUNCTION selector so that the display indicates

(COOL).

Set the desired FAN SPEED with the

(the display indicates the setting).

(FAN SPEED) button

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

MED or LOW automatically when the preset

temperature has been reached.

(HI)

: Economical as the room will become cool

quickly.

(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

START

STOP

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.

I As the settings are stored in memory in the remote controller, you

only have to press the (START/STOP) button next time.

– 10 –

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.

Press the FUNCTION selector so that the display indicates

(FAN).

Press the

(FAN SPEED) button.*

Press the

(START/STOP) button. Fan operation starts with

START

STOP

RESET

a beep. Press the button again to stop operation.

.....

FAN SPEED (AUTO)

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

G The fan speed will automatically change according to the temperature

of discharged air.

G When the difference of room temperature and setting temperature is

large, fan starts to run at HI speed.

For the heating operation

G When the room temperature reaches setting temperature, fan speed

changes to LOW automatically.

G When the difference of room temperature and setting temperature is

large, fan starts to run at HI speed.

G 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.

For the cooling operation

– 11 –

HOW TO SET THE TIMER

Time, Day, Month

Set the current month and

day with the TIMER control

button.

TIME, DAY,

MONTH

(current time,

day, month)

After you change the

batteries;

OFF TIMER

RESET

ON TIMER

RESERVE

CANCEL

OFF-Timer

Press the

button. The

on the display.

(OFF-TIMER)

(OFF) mark blinks

Start

STOP

You can set the device to turn off

at the present time.

ON-Timer

Press the

button the

on the display.

(ON-TIMER)

(ON) mark blinks

Stop

Start

G The device will turn on

at the designated times.

Press the

button so that the

mark blinks.

(ON-OFF)

(OFF)

Set the turn-off time

with the TIMER control

button.

Press the

(ON-

ON/OFF-Timer

TIMER) button so that the

(OFF) mark lights and

the (ON) mark blinks.

Start

Stop

Press the

button.

(RESERVE)

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.

How to Cancel Reservation

Point the signal window of the remote controller toward the indoor unit, and press the

button.

(CANCEL)

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.

– 12 –

Set the current time with the

TIMER control button.

Press the

The time indication starts lighting

instead of flashing.

(TIME) button again.

Press the

(TIME) button.

G The time indication will disappear

automatically in 10 second.

G To check the current time setting,

press the

(TIME) button twice.

The setting of the current time is

now complete.

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

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

Set the turn-off time with the

TIMER control button.

(RESERVED)

(TIMER) lamp lights on the indoor unit.

lights. A beep occurs and the

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

The setting of turn-off time is now complete.

Set the turn-on time with the

TIMER control button.

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

(RESERVED) sign

(TIMER) lamp lights on the indoor unit.

lights. A beep occurs and the

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.

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

Set the turn-on time with the

TIMER control button.

(RESERVED) sign

(TIMER) lamp lights on the indoor unit.

lights. A beep occurs and the

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.

G 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.

G 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.

– 13 –

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

shown below.

(SLEEP) button, and the display changes as

Mode

Sleep timer

Indication

1 hour

2 hours

3 hours

7 hours

Sleep timer off

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.

SLEEP

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.

Sleep

timer

Start

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.

How to Cancel Reservation

Point the signal window of the remote controller toward the indoor unit, and press the

button.

(CANCEL)

The (RESERVED) sign goes out with a beep and the

(TIMER) lamp turns off on the indoor unit.

– 14 –

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.

NOTE

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

G 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.

G You can not set other timer during sleep timer operation.

G After sleep timer time is up and when press sleep button

again, the sleep timer will be set as last setting.

G Sleep timer effective only once.

– 15 –

ADJUSTING THE AIR DEFLECTOR

Adjustment of the conditioned air in the upward and downward

directions.

The horizontal air deflector is automatically set to the proper

angle suitable for each operation. The deflector can be swung

up and down continuously and also set to the desired angle

using the “

(AUTO SWING)” button.

G 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 6 seconds) may be

required before the deflector starts to move.

G Use the horizontal air deflector within the adjusting range

shown on the right.

G When the operation is stopped, the horizontal air deflector

moves and stops at the position where the air outlet

closes.

Horizontal air deflector

CAUTION

G In “Cooling” operation, do not keep the horizontal and

vertical air deflector swinging for a long time. Some dew

may form on the horizontal and vertical air deflector and

dew may drop.

Adjustment of the conditioned air in the left and right directions.

G If the “

(PARALLEL SWING)” button is pressed

once, the vertical air deflectors swing left and right to

parallel. If the button is pressed again, the deflectors

stop in their current position. Several second (about 6

seconds) may be required before the deflectors start to

move.

G If the “

(SYMMETRY SWING) button is pressed

once, the vertical air deflectors swing left and right to

symmetry. If the button is pressed again, the deflectors

stop in their current position. Several seconds (about 6

seconds) may be required before the deflectors start to

move.

G PARALLEL SWING

PARALLEL

SWING

G SYMMETRY SWING

SYMMETRY

SWING

– 16 –

HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER

Remove the cover as shown in the figure and take out the

old batteries.

Push and pull to the

direction of arrow

Install the new batteries.

The direction of the batteries should match the marks in the

case.

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.

– 17 –

THE IDEAL WAYS OF OPERATION

Suitable Room Temperature

Install curtain or blinds

Warning

Freezing temperature

is bad for health and a

waste of electric power.

It is possible to

reduce heat

entering the

room through

windows.

Ventilation

Effective Usage Of Timer

At night, please use the “sleep 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.

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.

Do Not Forget To Clean The Air Filter

Please Adjust Suitable Temperature

For Baby And Children

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.

– 18 –

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

When Lightning Occurs

Warning

To protect the whole unit during lightning, please

stop operating the unit and remove the plug from the

socket.

UV-LED

UV-LED will be “ON” when the START/STOP button is pressed. Light UV glare is visible when the UV-

LED is “ON” and this is normal (not malfunction).

Interference From Electrical Products

Inverter-type

fluorescent

lamp.

Caution

To avoid noise interference, please place the indoor

unit and its remote controller at least 1m away from

electrical products.

To prevent

interference,

place at least

1m away.

– 19 –

ATTACHING THE AIR CLEANSING AND DEODORIZING FILTERS

CAUTION

Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning,

stop operation and switch off the power supply.

Open the front panel.

G Pull up the front panel by holding it at both sides

with both hands.

Remove the filter.

G Push upward to release the claws and pull out the

filter.

Attaching the air cleansing and deodorizing filters

to the filter.

G Attach the air cleansing and deodorizing filters to

the frame by gently compress its both sides and

release after insertion into filter frame.

Claws

(4 places)

CAUTION

Do not bend the air cleansing

and deodorizing filter as it may

cause damage to the structure.

Attach the filters.

G Attach the filters by ensuring that the surface written

“FRONT” is facing front.

G After attaching the filters, push the front panel at

three arrow portion as shown in figure and close it.

NOTE

G In case of removing the air-cleansing & deodorizing filters, please follow the above procedures.

G The cooling capacity is slightly weakened and the cooling speed becomes slower when the air-cleansing

& deodorizing filters are used. So, set the fan speed to "HIGH" when using it in this condition.

G Air-cleansing & deodorizing filters are not washable and can be use in 1 year time. Type number for

this air cleansing filter is <SPX-CFH13>. Please use this number for ordering when you want it.

G Do not operate the air conditioner without filter. Dust may enter the air conditioner and fault may occur.

– 20 –

MAINTENANCE

CAUTION

Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning,

stop operation and switch off the power supply.

1. AIR FILTER

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.

PROCEDURE

Open the front panel and remove the filter

G Gently lift and remove the air cleansing and

deodorizing filter from the air filter frame.

Vacuum dust from the air filter and air cleansing

and deodorizing filter using vacuum cleaner. If

there is too much dust, rinse under running tap

water and gently brush it with soft bristle brush.

Allow filters to dry in shade.

G Re-insert the air cleansing and deodorizing

filter to the filter frame. Set the filter with

“FRONT” mark facing front, and slot them into

the original state.

G After attaching the filters, push the front panel

at three arrow portions as shown in figure

and close it.

NOTE:

G Air cleansing and deodorizing filter should be cleaned every month or sooner if noticeable loading

occurs. When used overtime, it may loose its deodorizing function. For maximum performance, it is

recommended to replace it every 3-6 months depending on application requirements.

CAUTION

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

G 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.

G Do not use detergent on the air cleansing and deodorizing filter as some detergent may deteriorate

the filter electrostatic performance.

– 21 –

Attaching the minus ion stick to the

filter frame.

G Put the minus ion stick to the lower

hooks and install it so as to push up the

upper hooks at the left side of front

cover.

Upper hook

Minus ion stick

Lower hook

2. Washable Front Panel

G Remove the front panel and wash with clean

water.

Wash it with a soft sponge.

After using neutral detergent, wash thoroughly

with clean water.

G When front panel is not removed, wipe it with

a soft dry cloth. Wipe the remote controller

thoroughly with a soft dry cloth.

G Wipe the water thoroughly.

If water remains at indicators or signal

receiver of indoor unit, it causes trouble.

Method of removing the front panel.

Be sure to hold the front panel with both hands

to detach and attach it.

Removing the Front Panel

Attaching the Front Panel

Flange

Projection

Hole

G When the front panel is fully opened with

both hands, push the right arm to the inside

to release it, and while closing the front panel

slightly, put it out forward.

G Move the projections of the left and right

arms into the Flanges in the unit and

securely insert them into the holes.

CAUTION

G Do not splash or direct water to the body of the unit when cleaning

it as this may cause short circuit.

G Never use hot water (above 40°C), benzine, gasoline, acid, thinner or

a brush, because they will damage the plastic surface and the coating.

– 22 –

CAUTION

Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning,

stop operation and switch off the power supply.

3. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD

G Run the unit by setting the operation mode to

(COOL), the temperature to 32°C and the fan speed

to HI for about half a day on a fine day, and dry the

whole of the unit.

Air

Blow

G Switch off the power plug.

Note :

If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly

qualified persons in order to avoid a hazard.

REGULAR INSPECTION

PLEASE CHECK THE FOLLOWING POINTS BY QUALIFIED SERVICE PERSONAL EITHER

EVERY HALF YEARLY OR YEARLY. CONTACT YOUR SALES AGENT OR SERVICE SHOP.

Is the earth line disconnected or broken?

Is the mounting frame seriously affected by rust and is the

outdoor unit tilted or unstable?

Is the plug of power line firmly plugged into the socket?

(Please ensure no loose contact between them).

Confirm

– 23 –

AFTER SALE SERVICE AND WARRANTY

WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS.

CONDITION

CHECK THE FOLLOWING POINTS

G Is the fuse all right?

G Is the voltage extremely high or low?

G Is the circuit breaker “ON”?

When it does not operate

G Was the air filter cleaned?

G Does sunlight fall directly on the outdoor unit?

G Is the air flow of the outdoor unit obstructed?

G Are the doors or windows opened, or is there any source of

heat in the room?

When it does not cool well

When it does not hot well

G Is the set temperature suitable?

Notes

G 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.

G 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 the air filter and the evaporator regularly must be cleaned

to reduce the odor.

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.

– 24 –

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.

Note

Avoid to use the room air conditioner for cooling operation when the outside temperature is below

21°C (70°F).

The recommended maximum and minimum operating temperatures of the hot and cold sides

should be as below:

Cooling

Heating

Minimum

Maximum

Minimum

Maximum

Dry bulb °C

Wet bulb °C

Dry bulb °C

Wet bulb °C

Indoor

Outdoor

MEMO

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– 25 –

MEMO

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– 26 –

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