HITACHI RAK-SJ24HNV Mini Split Air Conditioner Instruction Manual

RAK-SJ24HNV Mini Split Air Conditioner
Instruction Manual

To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely.
This document is subject to change without notification.

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 following 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 warns of injury or damage to property.
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 R410A. 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.

• 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 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.

• 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(1m) 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

• 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.

PRECAUTIONS DURING OPERATION

CAUTION

• 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.
• When operating the unit with burning equipments, regularly ventilate the room to avoid 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 always above 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

OPERATION INDICATOR

TEMPORARY SWITCH
Use this switch to start and stop when the remote controller does not work. [Use non-conductor stick (example toothpick)]

• By pressing the temporary switch, the operation is done in automatic 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.

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.

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 fitter every 2 weeks.

Install curtain or blinds
It is possible to reduce heat entering the room through windows.

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.

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.

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 main unit. If the power from main unit 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.

Interference From Electrical Products
Caution
To avoid noise interference, please place the indoor unit and its remote controller at least lm away from electrical products.

ATTACHING THE AIR PURIFYING FILTERS

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

2. Remove the Pre-filter
   • Push upward to release the clasps and pull out the Pre-filter.

3. Attaching the air purifying filters
   • Attach the air purifying filters to the frame by gently compress its both sides and release after insertion into Pre-filter frame. CAUTION
   Do not bend the air purifying filter as it may cause damage to the structure.
   Please do not smell direct from source of filter.

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

NOTE

• In case of removing the air purifying filters, please follow the above procedures.
• The cooling capacity is slightly weakened and the cooling speed becomes slower when the air purifying filters are used. So, set the fan speed to “HIGH” when using it in this condition.
• The air purifying filters are not washable. It is recommended to use vacuum to clean. It can be used for 1 year. Type number for this air purifying filter 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
Cleaning and maintenance must be carried out only by qualified service personnel. Before cleaning, stop operation and switch off the power supply.

1. PRE-FILTER
Please clean the Pre-filter once about every two weeks. By doing so, the power rates are saved. 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.
PROCEDURE

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 clotch 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.
• Do not wash with hot water at more than 104°F(40°C). The Pre-filters 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-filters may shrink.
• Do not use detergent on the Pre-filter as some detergent may deteriorate the Pre-filter electrostatic performance.

2. 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.

• When the front panel is fully opened with both hands, push the right arm to the outside 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 104°F(40°C)), benzine, gasoline, acid, thinner or a brush, because they will damage the plastic surface and the coating. ****

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 symbol **or 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 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.

tilted or unstable?

AFTER SALE SERVICE AND WARRANTY

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-filter blocked with dust?
• Does sunlight fall directly on the outdoor unit?
• Is the airflow 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 operation or stopping the 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 pre-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 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 specified capacity.

NOTE:

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

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

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