HITACHI airHome 300 Room Air Conditioner Instruction Manual

Instruction Manual for HITACHI models including: RAK-CJ18CAK, RAK-CJ24CAK, RAR-M0A7, RAC-CJ18CAK, RAC-CJ24CAK, airHome 300 Room Air Conditioner, airHome 300, Room Air Conditioner, Air Conditioner, Conditioner

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Manuals and Technical Catalogs - airHome 300 - RAK-CJ-CAK/RAC-CJ-CAK | Hitachi

File Info : application/pdf, 20 Pages, 4.45MB

OM RAK-RAC-CJ18-24CAK (EN & CH)-A 2024012604402740

ENGLISH

OPERATION MANUAL

INDOOR UNIT RAK-CJ18CAK RAK-CJ24CAK
RAR-M0A7 OUTDOOR UNIT

RAC-CJ18CAK

RAC-CJ24CAK

Scan code for e-warranty registration
Instruction manual
To obtain the best performance, please read this instruction manual completely.

Page 1~26 27~54

<A >

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.

The sign in the figure indicates prohibition.

Indicates the instructions that must be followed.

Please keep this manual after reading.

EXPLANATION OF SYMBOLS DISPLAYED ON UNIT

W This symbol shows that this equipment uses

A R

a flammable refrigerant.

N If the refrigerant is leaked, together with an

I external ignition source, there is a possibility

N G

of ignition.

C
A U This symbol shows that the Operation T Instructions should be read carefully. I
O
N

A U T

This symbol shows that a service personnel should be handling this equipment with

I reference to the Installation Manual.

A U

This symbol shows that there is information

T included in the Operation Manual and/or

I Installation Manual O

PRECAUTIONS DURING INSTALLATION

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.

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.

Be sure to use the specified piping set for R32. Otherwise, this may result in broken copper pipes or faults.

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 the unit near a location where there is flammable gas. The outdoor unit may catch fire if flammable gas leaks around it.

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

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 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.

W A R

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.

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

If the air conditioner is not cool, one possible cause could be due to refrigerant leakage, so consult your dealer.

The refrigerant gas used in the air conditioner is harmless. But if refrigerant gas leaks into the room, harmful products

are generated when in contact with fire from appliances such as a stove heater.

When there is refrigerant gas accumulation in the room, immediately stop the air conditioner. Open the windows for

ventilation and contact your agent.

PRECAUTIONS DURING OPERATION

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

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

N I

the operation and turn the breaker OFF.

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

ENGLISH

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

C A U

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.

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 persons (including children) who are physically handicapped sensory or mental or lack of experience and knowledge. Unless supervised or instructed on the use of electrical appliances by persons responsible for their safety.

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

Pre-filter To prevent dust from coming into the indoor unit. (Refer page 8)
Front panel
Indoor unit indicators Light indicator showing the operating condition. (Refer page 5)
Horizontal deflector Vertical deflector (Air Outlet)

Remote controller Send out operation signal to the indoor unit. So as to operate the whole unit.

OUTDOOR UNIT
RAC-CJ18CAK
RAC-CJ24CAK
MODEL NAME AND DIMENSIONS
MODEL RAK-CJ18CAK, RAK-CJ24CAK
RAC-CJ18CAK RAC-CJ24CAK

Drain pipe Condensed water drain to outside. Connecting cord and insulation pipe for piping Air inlet (Back, Left side)
Air outlet
Drain pipe Condensed water drain to outside. Connecting cord and insulation pipe for piping Air inlet (Back, Left side)
Air outlet

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

900

300

230

658

530

275

750

570

288

ENGLISH

INDOOR UNIT INDICATORS
FROST WASH LAMP This lamp lights when the Frost Wash function is in operation. This lamp blinks to suggest operating manual FROST WASH operation after 200 hours of air conditioner cumulative usage. Please refer to remote controller manual for the details of Frost Wash operation. OPERATION LAMP This lamp lights during operation. TIMER LAMP This lamp lights when the timer is working.
TEMPORARY SWITCH button
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 automatic 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 fixed on a wall using the fixture provided. Before fixing 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.

AIR SLEEP TIMER button Use this button to set the air sleep timer mode.

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

START/STOP button Press this button to start or to stop operation.

FAN SPEED selector button

This determines the fan speed. Each time you press this button, the

intensity of circulation will change from

(AUTO)

(HI)

(MED)

(LOW)

(SILENT).

AUTO SWING (HORIZONTAL) button Controls the angle of the horizontal air deflector.

AUTO SWING (VERTICAL) button Use this button to select desired vertical wind direction.

ONE TOUCH POWERFUL buttonA Use this button to deliver faster and more comfortable air-conditioning or start operation.
RESET button T

FROST WASH button

During OFF mode, press this button to set the Frost Wash operation.

REFRESH button Use this button to refresh the room condition.

OFF-TIMER button Select to turn OFF time.

ON-TIMER button

Select to turn ON time.

MODE selector button

Use this button to select MODE. Each time you press this button the

MODE selection will change from

(COOLING)

(SILENT)

(DEHUMIDIFY) (FAN).

However, during OFF mode SILENT will be skipped.

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 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.

THE IDEAL WAYS OF OPERATION
Suitable Room Temperature

Install curtain or blinds

ENGLISH

! 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
! 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.
Effective Usage Of Timer
At night, please use the "OFF or ON timer or 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.
FOR USER'S INFORMATION

Do Not Forget To Clean The Pre-Filter
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 Adjust Suitable Temperature For Baby And Children
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.

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 2.5W 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.

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.
7

Inverter-type fluorescent lamp.
TV To prevent interference, place at least 1m away.

MAINTENANCE
! CAUTION Before cleaning, stop operation and switch off the power supply.
1. PRE-FILTER
Clean the Pre-filter, as it removes dust inside the room. In case the Pre-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 Pre-filter following the procedure below.
1 Open the front panel and remove the Pre-filter Gently lift and remove the air purifying filters from the air purifying filter frame.
2 Vacuum dust from the Pre-filter and air purifying filter using vacuum cleaner. If there is too much dust, wipe the filter with wet cloth or sponge. Allow filters to dry in shade.
3 Re-insert the air purifying filter to the filter frame. Set the Pre-filter with "FRONT" mark facing front, and slot them into the original state. After attaching the Pre-filters, push the front panel at three arrow portions as shown in figure and close it.
NOTE: Air purifying filter should be cleaned every month or sooner if noticeable loading occurs. When
used overtime, it may lose its deodorizing function. For maximum performance, it is recommended to replace it every 1 year depending on application requirements.
! CAUTION
Do not operate the air conditioner without Pre-filter. Dust may enter the air conditioner and fault may occur.
8

ENGLISH

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.
Removing the Front Panel

Attaching 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 slightly, pull it out forward.

Move the projections of the left and right arms into the Flanges in the unit and securely insert them into the holes.

! CAUTION

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

WIRING ARRANGEMENT

! 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 qualified 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.

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).

AFTER SALE SERVICE AND WARRANTY
WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS

Notes
In quiet or stop 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 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 for the model of your unit, serial 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.

CONDITION
When it does not operate
When it does not cool well

CHECK THE FOLLOWING POINTS
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 of heat in the room? Is the set temperature suitable?

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:

Indoor Outdoor

Dry bulb °C Wet bulb °C Dry bulb °C Wet bulb °C

Minimum 21 15 21 15

Maximum 32 23 46 26

RAK-CJ18CAK RAK-CJ24CAK

RAR-M0A7

RAC-CJ18CAK

RAC-CJ24CAK

1~26 27~54

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R32

( )

( 80%)
( )

( 18 )

( 15 )
( )

RAC-CJ18CAK
RAC-CJ24CAK

( )
( )

RAK-CJ18CAKRAK-CJ24CAK
RAC-CJ18CAK RAC-CJ24CAK

( ) 900 658 750
14

( ) 300 530 570

( ) 230 275 288

200

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2.5W

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17

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2
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21 15 21 15

32 23 46 26

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