Hitachi RAS-S18CAK, RAC-S18CAK User Manual

SPLIT TYPE AIR CONDITIONER

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-S18CAK / RAC-S18CAK

OUTDOOR UNIT INDOOR UNIT

RAS-S18CAK

RAC-S18CAK

ENGLISH

Instruction manual

To obtain the best performance, please read this instruction manual completely.

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– 1 –

Page 1~22

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  re may occur if you reconstruct the unit by yourself.

●

Please ask your sales agent or quali ed technician for the installation of your unit. Water

WARNING

CAUTION

leakage, short circuit or  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  ammable gas. The outdoor unit may catch

 re if  ammable gas leaks around it.

●

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

●

Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its

mist  ows to the indoor unit. The oil will deposit on the heat exchanger, thereby reducing the indoor unit performance and may deform and in the worst case, breake the plastic parts of the indoor unit.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

●

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  re may occur if you continue to operate

!

the unit under abnormal situation.

W

●

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

A

shock and  re.

R N

●

Please contact your agent if you need to remove and reinstall the unit. Electric shock or  re

I

may occur if you remove and reinstall the unit yourself improperly.

N

●

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

G

authorized service/parts centers.

!

The sign in the  gure indicates prohibition.

PRECAUTIONS DURING OPERATION

●

Avoid an extended period of direct air  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  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 speci 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 avoid oxygen insuf 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,  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  n and blocked the evaporation water  ow to drain pan. The water will drop on tangential fan and cause water splashing

!

out from indoor unit.

C A U T

●

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

the high-speed fan inside the unit may cause danger.

I

O

●

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

N

●

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

ENGLISH

●

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  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 de ector facing down or moving automatically for a long period of time, water will condense on the air de 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 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 in rm person 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

Pre- lter

To prevent dust from coming into the indoor unit. (Refer page 17)

Front panel

Indoor unit indicators

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

OUTDOOR UNIT

MODEL NAME AND DIMENSIONS

Horizontal de 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 de ector

MODEL

RAS-S18CAK

RAC-S18CAK

WIDTH (mm)

1030

850

– 4 –

HEIGHT (mm)

295

650

DEPTH (mm)

207

298

INDOOR UNIT INDICATORS

OPERATION INDICATOR

OPERATION LAMP

This lamp lights during operation.

TIMER LAMP

This lamp lights when the timer is working.

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  lter. The lamp goes out when the “ (AUTO SWING)” button is pressed while the device is on “STANDBY MODE”.

● This  gure shows the opening condition of

front panel. Refer to page 16 in relation to how to open or close the front panel.

ENGLISH

TEMPORARY SWITCH

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

● 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. Signal range to reach indoor unit is about 7 meters. If inverter lamp is used, the range of control may be shorter. This unit can be  xed on a wall using the  xture provided. Before  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 reduce humidity in 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. Each 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 de 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 the turn OFF time.

● ON-TIMER button Select the 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

 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 is higher than the current room temperature (even though

1

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

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

ENGLISH

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

2

(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).

3

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

STOP

Press the

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

only have to press the (COOLING) button to repeat the same setting next time.

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

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.

(STOP) button to stop operation.

– 7 –

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 (DEHUMIDIFY). Dehumidifying operation starts with a beep.

1

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).

2

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 only

Press the (STOP) button to stop operation.

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 and 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.

– 8 –

CIRCULATION OPERATION

1

2

3

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

Circulating operation starts with a beep.

ENGLISH

Press the FAN SPEED button and select the desired FAN SPEED (the display indicates your choice).

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

STOP

■ Circulation Function

● During circulation operation, compressor does not run 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.

Press the (STOP) button to stop operation.

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

you only have to press the

(CIRCULATION) button next time.

– 9 –

HOW TO SET THE SLEEP TIMER

Press the (SLEEP) 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 temperature and the FAN SPEED will be set to LOW 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

ENGLISH

ON Timer Reservation

ON TIME setting

● Select the ON TIMER by pressing the (ON)

Button.

● Setting time will change according to the below

sequence.

– 11 –

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

ADJUSTING THE AIR DEFLECTORS

Adjustment of the conditioned air in the upward and

1

downward directions. The horizontal air de ector is automatically set to the proper angle suitable for each operation. The de ector can be swung up and down continuously and also set to the desired angle using the “ (AUTO SWING)” button.

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

the horizontal air de ector swings up and down. If the button is pressed again, the de ector stops in its current position. Several seconds (about 6 seconds) may be required before the de ector starts to move.

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

de ector swinging for a long time. Some dew may form

on the horizontal air de ector and dew may drop.

Adjustment of the conditioned air to the left and right.

2

Hold the vertical air de ector as shown in the  gure and adjust the conditioned air to the left or right.

– 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  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

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.

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

Do Not Forget To Clean The Air Filter

Dusty air  lter will reduce the air volume and the cooling ef ciency. To prevent from wasting electric energy, please clean the  lter every 2 weeks.

Please Adjust Suitable Temperature

For Baby And Children

Please pay attention to the room temperature and air  ow direction when operating the unit for baby, children and old folks who have dif 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 8W in the operation control circuit even if it is in “OFF” mode.

When Lightning Occurs

Warning

!

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

ENGLISH

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 –

ATTACHING THE AIR PURIFYING FILTERS

CAUTION

!

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

Open the front panel

1

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

with both hands.

Remove the pre- lter

2

● Push upward to release the claws and pull out the

 lter.

Attaching the air purifying  lters

3

● Attach the air purifying  lters to the frame by gently

compress its both sides and release after insertion into pre- lter frame.

Claws

(4 places)

!

CAUTION

Do not bend the air purifying  lter as it may cause damage to the structure.

Attach the pre- lters

4

● Attach the pre- lters by ensuring that the surface

written “FRONT” is facing front.

● After attaching the pre- lters, push the front panel at

three arrow portion as shown in  gure and close it.

NOTE

● In case of removing the air purifying  lters, please follow the above procedures.

● The cooling capacity is slightly weakened and the cooling speed becomes slower when the air

purifying  lters are used. So, set the fan speed to "HIGH" when using it in this condition.

● Air purifying  lters are washable and can be use in 1 year time. Type number for this air purifying

 lter is <SPX-CFH18>. Please use this number for ordering when you want to renew it.

● Do not operate the air conditioner without pre- lter. Dust may enter the air conditioner and fault may

occur.

– 16 –

MAINTENANCE

!

CAUTION

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

1. PRE-FILTER

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

Open the front panel and remove the  lter

1

● Gently lift and remove the air purifying  lter

from the  lter frame.

Vacuum dust from the pre- lter and air purifying

2

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

ENGLISH

● Re-insert the air purifying  lter to the  lter

3

frame. Set the pre- lter with “FRONT” mark facing front, and slot them into the original state.

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

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

NOTE:

● Air purifying  lter 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 1 year depending on application requirements.

!

CAUTION

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

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

to the sun. The  lter may shrink.

● Do not use detergent on the air purifying  lter as some detergent may deteriorate the air purifying

 lter electrostatic performance.

– 17 –

2. Washable 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.

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

Attaching the Front Panel

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

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.

3. MAINTENANCE BEFORE LONG OFF PERIOD

● Run the unit by setting the operation mode to

(CIRCULATION), the temperature to 16°C and the fan speed to HI for about half a day on a  ne day, and dry the whole of the unit.

● Switch off the power plug.

– 18 –

!

CAUTION

● 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.

IMPORTANT

The wires in this mains lead are coloured in accordance with the following code: Green-and-yellow : Earth Blue : Neutral Brown : Live 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 or coloured green or green-and-yellow. 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.

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 quali ed service personnel. Before cleaning, stop operation and switch off the power supply.

REGULAR INSPECTION

ENGLISH

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

– 19 –

AFTER SALE SERVICE AND WARRANTY

WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS

CONDITION CHECK THE FOLLOWING POINTS

● Is the fuse all right?

When it does not operate

When it does not cool well

Notes

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

occur, but they are not abnormal for the operation. (1) Slight  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

the various odor, emitted by smoke, foodstuffs, cosmetics and so on,

sticks to it. So the air  lter and the evaporator regularly must be cleaned

to reduce the odor.

● Is the voltage extremely high or low?

● Is the circuit breaker “ON”?

● Was the air  lter cleaned?

● Does sunlight fall directly on the outdoor unit?

● Is the air  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?

gradually warmed as operation stops.

● 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 speci ed capacity.

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

NOTE:

If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly quali ed person in order to avoid a hazard.

– 20 –

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:

Minimum Maximum Indoor Dry bulb °C 21 32 Wet bulb °C 15 23 Outdoor Dry bulb °C 21 43 Wet bulb °C 15 26

MEMO

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ENGLISH

– 21 –

MEMO

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– 22 –

Hitachi RAS-S18CAK, RAC-S18CAK User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual