Hitachi RAD-18RPA, RAD-25RPA, RAD-35RPA, RAD-50RPA, RAD-18NH7A User Manual

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SPLIT TYPE AIR CONDITIONER

INDOOR UNIT

MODEL

RAD-18RPA RAD-25RPA RAD-35RPA RAD-50RPA

Instruction manual Page 1~12

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

Bedlenungsanleitung Suite 13~24

Bitte lesen Sie diese Bedienungsanleitung aufmerksam durch, um durch richtige Bedienung jahrelangen und störungsfreien Betrieb zu gewährleisten.

Mode d’emploi Page 25~36

Des performances optimales et un fonctionnement à long terme seront assurés en appliquant les présentes instructions après avoir entièrement lu ce mode d’emploi.

Manuale di istruzioni Pag. 37~48

Per garantire la migliore prestazione e la più lunga durataleggere attentamente e al completo le seguanti istruzioni.

Manual de instrucciones Página 49~60

Para obtener el mejor funcionamiento y asegurar años de uso libre de problemas, lea cuidadosamente este manual de instrucciones.

Manual de instruções Página 61~72

A  m de obter um bom funcionamento e de garantir uma utilização sem falhas durante muitos anos, é favor ler este manual de instruções completamente.

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Инструкция по эксплуатации

стр. 85~96 Для обеспечения наилучших эксплуатационных характеристик и многолетней безотказной работы оборудования необходимо ознакомиться с данной Инструкцией по эксплуатации.

RAD-18RPA RAD-25RPA RAD-35RPA RAD-50RPA

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!

SAFETY PRECAUTION

●

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

●

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

●

The sign indicate the following meanings.

●

Please keep this manual after reading.

WARNING

PRECAUTIONS DURING INSTALLATION

● 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 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.

CAUTION

!

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

PRECAUTIONS DURING OPERATION

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

W

A R N

I N G

!

● 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.

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

electric shock and  re.

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

shock or  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.

● 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.

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

!

Make sure to connect earth line.

Indicates the instructions that must be followed.

The sign in the  gure indicates prohibition.

W

A R N

I N G

!

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ENGLISH

PRECAUTIONS DURING OPERATION

● 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.

● Do not place plants directly under the air  ow as it is bad for the plants.

● 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.

● 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 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 in rm 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.

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

● 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.

C A U T

I O N

!

● The product shall be operated under the manufacturer speci cation and

not for any other intended use.

● 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 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.

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MULTI-AIR CONDITIONER

With this multi-air conditioner, several indoor units can be connected to one outdoor unit to be driven. You can operate the required number of indoor units.

Combination of Operations:

● You cannot operate the indoor units in the following combinations.

● The indoor unit which is switched on  rst continues

to operate, but other indoor units which is switched on later does not operate while the lamp lights.

● To re-start an indoor unit which was operated later,

stop the indoor unit which was operated  rst or later and reset the type of operation, then perform operation again.

One unit

Heating

Other unit

Cooling

Dehumidifying

Circulating (fan)

Adjusting the Number of Indoor Units:

Decrease the number of indoor units to be operated especially when it is very hot or cold or when you want to reach the present temperature quickly.

Stopped Indoor Units:

When an indoor unit is operated in the cooling, heating or dehumidifying mode in the room, the sound of refrigerant  ow may be heard from a stopped indoor unit or a stopped indoor unit may become warm. This is because the indoor unit returns refrigerant to the outdoor unit to be ready for operation.

When operation mode is selected:

● When heating operation is automatically selected for the  rst indoor unit, the next indoor unit will then

start to heat. Also, if cooling or dehumidifying is automatically selected for the  rst indoor unit, the next indoor unit will also start to cool or dehumidify.

During automatic operation:

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ENGLISH

INDOOR UNIT

NAMES AND FUNCTIONS OF EACH PART

WIDTH (mm)

750

MODEL

RAD-18RPA/RAD-25RPA/RAD-35RPA/RAD-50RPA

HEIGHT (mm)

235

DEPTH (mm)

400

MODEL NAME AND DIMENSIONS

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CIRCUIT BREAKER

When you do not use the room air conditioner, set the circuit breaker to “OFF”.

HOW TO USE THE AIR CONDITIONER EFFECTIVELY

1. An average room temperature setting is probably the best for you as well as being economical.

 Excessive cooling or heating is not recommended for health reasons. High electricity

bills may also result.

 Close the curtains or blinds to prevent heat from  owing into or escaping the

room as well as to make more effective use of electricity.

2. At intervals, the doors and windows should be opened to let fresh air in.

Make sure the room is ventilated when operating the air

conditioner at the same time as other heating appliances.

3. Using the timer is recommended before going to sleep or going out.

4. The following must never be used for cleaning the indoor and outdoor units.

 Benzine, thinner and scrub can damage plastic surfaces or coating.  Hot water above 40°C can shrink the  lter and deform plastic parts.

5. Do not block the air intake and air outlet.

 Do not block the air outlets and intakes of the indoor and outdoor units with

curtains or other obstacles which could degrade air conditioner performance and cause unit failure.

CAUTION

!

Note

● The recommended temperature range for safety testing should be as below:

Cooling Heating

Minimum Maximum Minimum Maximum

Indoor

Dry bulb °C 21 32 20 27

Wet bulb °C 15 23 12 19

Outdoor

Dry bulb °C 21 43 2 21

Wet bulb °C 15 26 1 15

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ENGLISH

Suitable Room Temperature Install curtain or blinds

Ventilation Effective Usage Of Timer

Do Not Forget To Clean The Air Filter

Please Adjust Suitable Temperature

For Baby And Children

Warning

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

!

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

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

Dusty air  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 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.

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.

!

THE IDEAL WAYS OF OPERATION

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FOR USER’S INFORMATION

The Air Conditioner And The Heat Source In The Room

Not Operating For A Long Time

When Lightning Occurs

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.

!

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 10W in the operation control circuit even if it is in “OFF” mode.

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.

!

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ENGLISH

MAINTENANCE

● Before cleaning, stop unit operation with the remote controller and turn off the circuit breaker.

!

WARNING

1

Pull the  lter toward the center until it detached from the holders. Then take it out from holders (refer to diagram).

● Do not expose the unit to water as it may cause an electric shock.

● For cleaning inside the air conditioner, consult your sales agent.

● Avoid using detergent when cleaning the heat exchanger of the indoor unit. Unit failure may result.

● When cleaning the heat exchanger with a vacuum cleaner, make sure to wear gloves so as not to injure

your hands on the heat exchanger  ns.

!

CAUTION

1. AIR FILTER

Clean the air  lter, as it removes dust inside the room. Be sure to clean the  lter once every two weeks so as not to consume electricity unnecessarily.

2

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

3

Install the  lters. Gently insert back the  lter into the holders.

!

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 operate the air conditioner with the  lter removed. Dust may enter the air conditioner and

cause trouble.

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1

2

3

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

AFTER SALE SERVICE AND WARRANTY

WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS.

When it does not operate

● Is the fuse all right?

● Is the voltage extremely high or low?

● Is the circuit breaker “ON”?

● Was the air  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?

CONDITION 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  owing 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  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 speci ed capacity.

When it does not cool well When it does not hot well

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ENGLISH

MEMO

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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.

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MEMO

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Hitachi RAD-18RPA, RAD-25RPA, RAD-35RPA, RAD-50RPA, RAD-18NH7A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual