HITACHI RAK-SJ07HNK Room Air Conditioner Instruction Manual

HITACHI RAK-SJ07HNK Room Air Conditioner

MODELS

RAK-SJ07HN K
RAK-SJ 10 H N K
RAK-SJ 13 H N K
RAK-SJ18HNK

SAFETY PRECAUTION

• Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit.
• To prevent personal injury or property damage, read this section carefully before you use this product, and be sure to comply with the followihg safety precautions. Incorrect operation due to failure to follow the instructions may cause harm or damage, the seriousness of which is classified as follows:

WARNING

This mark warns of death or serious injury.

CAUTION

This mark denotes an action that is PROHIBITED.

This mark denotes an action that is COMPULSORY.

• Please keep this manual after reading.

WARNING|

• Please use ground wiring.
  Connect the power supply and the ground wiring to the terminals in the electrical box.
  Ground wiring must be securely connected.
  Use a GFCI (Ground Fault Circuit Interrupter).
  Failure to use a GFCI can result in electric shock or fire.

• Be sure to use the specified piping set for R41 0A. Otherwise, this may result in broken copper pipes or faults.

• 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.

• 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.

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

• Oo 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 the operation and turn the breaker OFF.

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

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

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• 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.

• Spray cans and other combustibles should not be located within a meter 3 28ft(1 m) of the air outlets of both indoor and outdoor units.
  As a spray can’s internal pressure can be increased by hot air, a rupture may result.

CAUTION

CAUTION|

• 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 flammable gas. The outdoor unit may catch fire if flammable gas leaks around it.
• Please ensure a smooth flow of condensate when installing the condensate hose.
• Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its mist flows 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, break the plastic parts of the indoor unit.

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PRECAUTIONS DURING OPERATION

CAUTION|

• The product shall be operated under the manufacturer specification and not for any other intended use.

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• 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 EJ.VOid insufficient oxygen.

• 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 block the flow of condensate to the condensate pan .. Condensate might drip on the fan and cause droplets to occasionally drip from the 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 cause a 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 alwaysabove 80%) and with the louver facing down or moving automatically for a long period of time, condensate will condense on the louver 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.

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

MODEL NAME AND DIMENSIONS

INDOOR UNIT INDICATORS

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.

THE IDEAL WAYS OF OPERATION

Suitable Room Temperature

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

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 yourwake up time in the morning. This will enable you to enjoy a comfortable room temperature. Please use the timer effectively.
Install curtain or blinds

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

Do Not Forget To Clean The Pre-Filter

Dusty air 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.

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.

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.

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.

AIRFLOW LOUVERS ADJUSTMENTS

Adjustment of the conditioned air to the left and right.

Hold the second vertical louver of each set of vertical louver from right as shown in the fi gure and adjust the conditioned air to the left or 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 louvers, be sure to switch OFF the operation.

ATTACHING THE AIR PURIFYING FILTERS

CAUTION

Before cleaning, stop operation and switch off the power supply.

1. Open the front panel

   • Pull up the front panel by holding it at both sides with both hands.
     

2. Remove the Pre-fi lter

   • Push upward to release the clasps and pull out the Pre-fi lter.
     

3. Attaching the air purifying fi lters

   • Attach the air purifying fi lters to the C-case by gently compress its both sides and release after insertion into fi lter frame.
   • Bring the C-case to the back side of the pre-fi lter.
   • 
   • Insert it claws on left and right to the C-case fi xing slot securely. Honeycomb surface shall be on the front side and fl at surface shall be on the back side when insert (only for the purifying fi lter with a fl at surface).
     
     CAUTION
     Do not bend the air purifying fi lter as it may cause damage to the structure.
     Please do not smell direct from source of fi lter.
     

4. Attach the Pre-fi lters

   • Attach the Pre-fi lters by ensuring that the surface written “FRONT” is facing front.
   • After attaching the Pre-fi lters, push the front panel at three arrow portions as shown in fi gure and close it.
     

NOTE

• In case of removing the air purifying fi lters, please follow the above procedures.
• The cooling capacity is slightly weakened and the cooling speed becomes slower when the air purifying fi lters are used. So, set the fan speed to “HIGH” when using it in this condition.
• Air purifying fi lters are not washable. It is recommended to use vacuum to clean it. It can be use for 1 year time. Type number for this air purifying fi lter is . Please use this number for ordering when you want to renew it. Part can be purchased from an authorized service parts centers.

MAINTENANCE

CAUTION

Before cleaning, stop operation and switch off the power supply.

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.

1. Open the front panel and remove the Pre-fi lter

   • Gently lift and remove the air purifying fi lters from the air purifying fi lter frame.
     

2. Vacuum dust from the Pre-fi lter and air purifying fi lter using vacuum cleaner. If there is too much dust, rinse under running tap water and gently  brush it with soft bristle brush. Allow fi lters to dryin shade.
   

   • Re-insert the air purifying fi lter to the fi lter frame.
     Set the Pre-fi lter with “FRONT” mark facing 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

• Do not operate the air conditioner without Pre-fi lter. Dust may enter the air conditioner and fault may occur.
• Do not wash with hot water at more than 104°F(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 Pre-fi lter electrostatic performance.

CLEANING OF FRONT PANEL

• Remove the front panel and wash with clean water.
  Wash it with a soft sponge.
  After using mild 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 LEDs 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 reattach it.

Removing the Front Panel

1. Push the end of the right-side arm outward to release the right tab.
2. Move the left-side arm outward to release the left tab and then pull the panel towards you.
   

Attaching the Front Panel

1. Insert the shaft of the left arm along the step on the unit into the hole.
2. Securely insert the shaft of the right arm along the step on the unit into the hole.
3. Make sure that the front panel is securely attached an then close the front panel.
   

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 ground wiring.
  Do not place the ground wiring near water or gas pipes, lightning-conductor, or the ground wiring of telephone. Improper installation of ground wiring 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/Ground
White : Neutral
Black : Line

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 symbor coloured green or green-and-yellow.
The wire which is coloured white must be connected to the terminal which is marked with the letter N or coloured black.
The wire which is coloured black 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 with the new 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

REGULAR INSPECTION

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

outdoor unit tilted or unstable?

WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS

If the remote controller is not transmitting a signal.
Remote controller display is dim or blank.)|

• Do the batteries need replacement?
• Is the polarity of the inserted batteries correct?

When it does not operate|

• Is the fuse blown?
• Is the power supply in normal condition?
• Is the circuit breaker “ON”?
• Is the setting of operation mode different from other indoor units?

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

• Is the pre-fi lter blocked with dust?
• Does sunlight fall directly on the outdoor unit?
• Is the airfl 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?
• Are the air inlets or air outlets of indoor and outdoor units blocked?
• Is the fan speed “LOW” or “SILENT”?

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 fi lter and the evaporator regularlymust 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 specifi ed capacity

NOTE:

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

Note

• Avoid using the room air conditioner for cooling operation when the outside temperature is below the minimum recommended temperature.
  The recommended maximum and minimum operating temperatures of the hot and cold sides should be as below:

| Cooling
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Minimum| Maximum
Indoor| Dry bulb °C| 70°F (21°C)| 90°F (32°C)
Wet bulb °C| 59°F (15°C)| 73°F (23°C)
Outdoor| Dry bulb °C| 14°F (-10°C)| 114.8°F (46°C)
Wet bulb °C| –| –
| Heating
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Minimum| Maximum
Indoor| Dry bulb °C| 68°F (20°C)| 81°F (27°C)
Wet bulb °C| –| –
Outdoor| Dry bulb °C| -4°F (-20°C)| 75.2°F (24°C)
Wet bulb °C| –| –

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