Hitachi RAS-F18CF, RAC-F18CF User Manual

SPLIT TYPE AIR CONDITIONER

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-F18CF/RAC-F18CF

ENGLISH

OUTDOOR UNIT

RAC-F18CF

Instruction manual Page 1~20

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

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Untuk mendapatkan prestasi yang tinggi dan mengelakkan masalah untuk jangka masa yang lama, sila baca arahan
ini sepenuhnya.

INDOOR UNIT

RAS-F18CF

Hướng dẫn sử dụng T

Để máy hoạt động tốt nhất, và để đảm bảo máy sử dụng được lâu bền mà không gặp sự cố, vui lòng đọc kỹ
hướng dẫn trước khi sử dụng.

rang 41~60

– 1 –

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.

!

!

Make sure to connect earth line.

Indicates the instructions that must be followed.

●

Please keep this manual after reading.

PRECAUTIONS DURING INSTALLATION

● Do not reconstruct the unit.

Water leakage, fault, short circuit or fi re may occur if you reconstruct
the unit by yourself.

!

WARNING

!

CAUTION

● Please ask your sales agent or qualifi ed technician for the installation

of your unit. Water leakage, short circuit or fi re may occur if you install
the unit by yourself.

● 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.

● 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 fl ammable gas. The outdoor

unit may catch fi re if fl ammable gas leaks around it.

● Please ensure smooth fl ow of water when installing the drain hose.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

● Should abnormal situation arises (like burning smell), please stop operating the unit

!

W

A
R
N

I
N
G

and turn off the circuit breaker. Contact your agent. Fault, short circuit or fi re 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 fi re.

● Please contact your agent if you need to remove and reinstall the unit. Electric

shock or fi re may occur if you remove and reinstall the unit yourself improperly.

● If the supply cord is damaged, it must be replaced by the special cord

obtainable at authorized service/parts centers.

The sign in the fi gure indicates prohibition.

,

PRECAUTIONS DURING OPERATION

● Avoid an extended period of direct air fl ow for your health.

!

W

A
R
N

I

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

N
G

● Do not insert a fi nger, 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.

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

– 2 –

PRECAUTIONS DURING OPERATION

●

The product shall be operated under the manufacturer specifi cation 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

ENGLISH

avoid oxygen insuffi ciency.

●

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, fi rm 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 fi n and blocked the evaporation water fl ow

!

to drain pan. The water will drop on tangential fan and cause water splashing out

from indoor unit.

C
A
U

●

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

T

I
O
N

●

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 short­circuit.

●

Do not place plants directly under the air fl ow 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 defl ector facing down or moving automatically for a long period of time, water will condense on
the air defl ector 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 can be used by children aged from 8 years and above and persons with reduced physical,

sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way and understand the hazards involved.

Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children

without supervision.

– 3 –

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

Air fi lter

To prevent dust from coming into the indoor unit.
(Refer page 16)

Front panel

Indoor unit indicators

Light indicator showing the operating condition.
(Refer page 5)

OUTDOOR UNIT

Horizontal defl ector
(Air Outlet)

(Refer page 12)

Remote controller

Send out operation signal to the indoor unit. So as
to operate the whole unit.
(Refer page 6)

Drain pipe

Condensed water drain to outside.

Connecting cord and insulation pipe for piping

Air inlet (Back and Left side)

Air outlet

●

Vertical defl ector

MODEL NAME AND DIMENSIONS

MODEL

RAS-

F18CF

RAC-F18CF

WIDTH (mm)

900

750

– 4 –

HEIGHT (mm)

300

570

DEPTH (mm)

230

280

INDOOR UNIT INDICATORS

OPERATION INDICATOR

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 fi lter. The lamp goes

out when the “

pressed while the device is on “STANDBY MODE”.

OPERATION LAMP

This lamp lights during operation.

TIMER LAMP

This lamp lights when the timer is working.

(AUTO SWING)” button is

ENGLISH

TEMPORARY SWITCH

Use this switch to start and stop when the remote controller does not work.

Normal operation:

● 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.

– 5 –

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 fi xed on a wall using the holder provided. Before fi xing it, make sure the indoor unit
can be controlled from the remote controller.

● Transmission sign

The transmission sign blinks when a signal is sent.

● Display

This indicates the room temperature selected, timer status, function

and intensity of circulation selected.

● CIRCULATION button

Use this button to set air circulation in the room or start operation.

● DEHUMIDIFYING button

Use this button to dehumidify the room or start operation.

● COOLING button

Use this button to set cooling mode in the room or start operation.

● RESET button

● STOP button

Press this button to stop operation only.

● SLEEP button

Use this button to set the sleep timer.

● 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).

● AUTO SWING button

Controls the angle of the horizontal air defl ector.

● TEMPERATURE button

Use this button to raise or lower the temperature setting. (Keep

pressed, and the value will change more quickly.)

● OFF-TIMER button Select to turn OFF time.

● ON-TIMER button Select to turn ON time.

Precautions for Use

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

● In direct sunlight.

● In the vicinity of a heater.

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

fl oor, 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.

– 6 –

COOLING OPERATION

Use the device for cooling when the outdoor temperature is 21-43°C.
If indoor humidity is very high (over 80%), some dew may form on the air outlet grille of the indoor unit.

Press the button so that the display indicates (COOL).

Cooling operation starts with a beep.
The cooling function does not start if the temperature setting

1

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.

ENGLISH

2

3

STOP

Set the desired FAN SPEED with the
button (the display indicates the setting).

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

MED or LOW automatically when the preset
temperature has been reached.

(HI) : Hi fan speed mode.

(MED) : Medium fan speed mode.

(LOW) : Low fan speed mode.

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 somehow depending on conditions.

Press the

(STOP) button to stop operation.

(FAN SPEED)

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

only have to press the

– 7 –

(COOLING) button next time.

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 button so that the display indicates

1

2

(DEHUMIDIFY). Dehumidifying operation starts with a beep.
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.

STOP

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

Press the (STOP) button to stop operation.

only have to press the

(DEHUMIDIFY) button next time.

■ 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. You might feel a bit colder in dehumidifying operation.

– 8 –

CIRCULATION OPERATION

1

Press the button so that the display indicates

(CIRCULATION). Circulating operation starts with a beep.

Press the FAN SPEED button and select the desired FAN

2

STOP

SPEED (the display indicates your choice).

Press the temperature control button to set to the desired
temperature.

3

Press the (STOP) button to stop operation.

■ As the settings are stored in memory in the remote controller,

you only have to press the

time.

(CIRCULATION) button next

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■ Circulation Function

● During circulation operation, compressor will not be running and there is no cooling operation with only

indoor fan running.

● When the setting temperature is higher than room temperature, indoor fan will stop running.

– 9 –

HOW TO SET THE SLEEP TIMER

Press the button, and the display changes as shown below.

SLEEP

Mode

44 44

Sleep timer

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.

1 hour 2 hours 3 hours 7 hours

Indication

Sleep timer off

1

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.

Function Operation

Cooling

“ ”

and

dehumidifying

“ ”

The room temperature will
be controlled 2°C above the
setting temperature and the FAN
SPEED will be set to lowest
setting 1 hour after the setting
of the sleep timer.

– 10 –

HOW TO SET THE TIMER

■ ON Timer and OFF Timer are available.

OFF Timer Reservation

OFF TIME setting

● Select the OFF TIME by pressing the (OFF) Button.

● Setting time will change according to the below sequence

when you press the button.

■

Operation stop at setting time

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ON Timer Reservation

ON TIME setting

● Select the ON TIMER by pressing the (ON)

Button.

● Setting time will change according to the below

sequence.

■ Operation will start for setting
temperature at setting time (The
starting time may different depend
on the room temperature and set
temperature).

– 11 –

AIR FLOW LOUVERS ADJUSTMENTS

Adjustment of the conditioned air in the upward and downward

1

directions.

The horizontal air defl ector is automatically set to the proper
angle suitable for each operation. The defl ector can be swung
up and down continuously and also set to the desired angle

using the “

● If the “ (AUTO SWING)” button is pressed once,

the horizontal air defl
button is pressed again, the defl ector stops in its current
position. Several seconds (about 6 seconds) may be
required before the defl

● Use the horizontal air defl ector within the adjusting range

shown on the right.

● When the operation is stopped, the horizontal air defl ector

moves and stops at the position where the air outlet
closes.

CAUTION

!

● In “Cooling” operation, do not keep the horizontal air

defl ector swinging for a long time. Some dew may form
on the horizontal air defl ector and dew may drop.

(AUTO SWING)” button.

ector swings up and down. If the

ector starts to move.

Adjustment of the conditioned air to the left and right.

2

Hold the second vertical air defl ector of each set of vertical
air defl ectors from right as shown in the fi gure and adjust the
conditioned air to the left and right.

WARNING

Do not insert a fi nger, 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 any cleaning or adjusting the defl ectors, be sure to switch OFF the operation.

– 12 –

HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER

When using the remote control, if there is no response from the air conditioner unit and or the remote
control has fading and dim displays, the batteries in the remote control device need to be removed and
replaced with new ones

Remove the cover as shown in the fi gure and

1

take out the old batteries.

=

Install the new batteries.

2

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.

3. Use high quality and high performance AAA batteries
to avoid short operating life and electrolyte leakages

ENGLISH

– 13 –

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.

Ventilation Effective Usage Of Timer

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

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 Pre-Filter

Dusty pre-fi lter will reduce the air volume and
the cooling effi ciency. To prevent from wasting
electric energy, please clean the fi lter every
2 weeks.

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.

Please Adjust Suitable Temperature

For Baby And Children

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

– 14 –

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 3W in the operation
control circuit even if it is in “OFF” mode.

ENGLISH

When Lightning Occurs

Warning

!

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

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.

– 15 –

MAINTENANCE

!

CAUTION

Cleaning and maintenance must be carried out when fi lter lamp lights. Before cleaning, stop
operation and switch off the power supply.

1. PRE-FILTER

Clean the pre-fi lter, as it removes dust inside the room. In case the pre-fi lter is full of dust, the air
fl ow will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to

clean the pre-fi lter following the procedure below.

Open the front panel and remove the pre-fi lter.

1

Vacuum dust from the pre-fi lter using vacuum

2

cleaner. If there is too much dust, rinse under
running tap water and gently brush it with soft
bristle brush. Allow fi lters to dry in shade.

● Set the pre-fi lter with “FRONT” mark facing

3

!

● Do not wash with hot water at more than 40°C. The pre-fi lters may shrink.

● When washing it, shake off moisture completely and dry it in the shade; do not expose it directly

to the sun. The pre-fi lters may shrink.

● Do not use detergent on the pre-fi lter as some detergent may deteriorate the fi lter electrostatic

performance.

front, and slot them into the original state.

● After attaching the pre-fi lters, push the front

panel at three arrow portions as shown in
fi gure and close it.

CAUTION

– 16 –

2. CLEANING OF FRONT PANEL

● Remove the front panel and wash with clean water.

Wash it with a soft sponge.
After using neutral detergent, wash thoroughly with

clean water.

● When front panel is not removed, wipe it with a soft

dry cloth. Wipe the remote controller thoroughly with
a soft dry cloth.

● 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.

ENGLISH

Removing the Front Panel

● 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

● Move the projections of the left and right

arms into the Flanges in the unit and securely
insert them into the holes.

Attaching the Front Panel

slightly, put it out forward.

!

CAUTION

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

it as this may cause short circuit.

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

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

– 17 –

!

!

CAUTION

● Please use earth line.

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

● A circuit breaker should be installed depending on the mounting site of the unit. Without a circuit

breaker, the danger of electric shock exists.

, or the earth

IMPORTANT

As the colours of the wires in the mains lead of this appliance may not correspond with the coloured
markings identifying the terminals in your plug, proceed as follows:
The wire which is coloured green-and-yellow must be connected to the terminal in the plug which is
marked with the letter E or by the earth symbol
The wire which is coloured blue must be connected to the terminal which is marked with the letter
N or coloured black.
The wire which is coloured brown must be connected to the terminal which is marked with the letter
L or coloured red.

or coloured green or green-and-yellow.

NOTE

If the supply cord is damaged, it must be replaced by the special cord obtainable at authorized
service/parts centers.

CAUTION

Cleaning and maintenance must be carried out only by qualifi ed service personnel. Before
cleaning, stop operation and switch off the power supply.

REGULAR INSPECTION

PLEASE CHECK THE FOLLOWING POINTS BY QUALIFIED SERVICE PERSONNEL EITHER
EVERY HALF YEARLY OR YEARLY. CONTACT YOUR SALES AGENT OR SERVICE SHOP.

1

2

3

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 fi rmly plugged into the socket?
(Please ensure no loose contact between them).

– 18 –

AFTER SALE SERVICE AND WARRANTY

WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS

CONDITION CHECK THE FOLLOWING POINTS

When it does not operate

When it does not cool well

Notes

● In quiet or stop operation, the following phenomena may occassionally

(1) Slight fl owing noise of refrigerant in the refrigerating cycle.
(2) Slight rubbing noise from the fan casing which is cooled and then

● The odor will possibly be emitted from the room air conditioner because

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● Is the fuse all right?

● Is the voltage extremely high or low?

● Is the circuit breaker “ON”?

● Was the pre-fi lter cleaned?

● Does sunlight fall directly on the outdoor unit?

● Is the air fl ow of the outdoor unit obstructed?

● Are the doors or windows opened, or is there any source

of heat in the room?

● Is the set temperature suitable?

occur, but they are not abnormal for the operation.

gradually warmed as operation stops.

the various odor, emitted by smoke, foodstuffs, cosmetics and so on,
sticks to it. So the pre-fi lter 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 specifi ed capacity.

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

– 19 –