HITACHI RAD-DJ18QHAE Air Home Ducted Instruction Manual

HITACHI RAD-DJ18QHAE Air Home Ducted

Product Information

Specifications

• Model: H1219: A
• Pages: 1-26, 27-54

Safety Precautions

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.

Meanings of Signs

• Make sure to connect earth line: This sign indicates
  that the earth line must be connected.

• Prohibition: This sign indicates prohibition.

• Instructions: This sign indicates the instructions that
  must be followed.

WARNING
This symbol shows that this equipment uses a flammable refrigerant. If the refrigerant is leaked, together with an external ignition source, there is a possibility of ignition.

CAUTION
This symbol shows that the Operation Instructions should be read carefully.

CAUTION
This symbol shows that a service personnel should be handling this equipment with reference to the Installation Manual.

CAUTION
This symbol shows that there is information included in the Operation Manual and/or Installation Manual. Please keep this manual after reading.

Installation Precautions

WARNING

• 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.
• Do not use refrigerant other than the one indicated on the outdoor unit (R32) when installing, moving, or repairing. Using other refrigerants may cause trouble or damage to the unit and personal injury.
• 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 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.
• 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 Shifting or Maintenance
Should an abnormal situation arise (like a 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 an abnormal situation. Please contact your agent for maintenance. Improper self-maintenance may cause electric shock and fire.

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 that, 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 indicates the following meanings.

Make sure to connect earth line.

 Indicates the instructions that must be followed.
 The sign in the figure indicates prohibition.

  WARNING| This symbol shows that this equipment uses a flammable refrigerant.

If the refrigerant is leaked, together with an external ignition source, there is a possibility of ignition.

---|---
  CAUTION| This symbol shows that the Operation Instructions should be read carefully.
CAUTION| This symbol shows that a service personnel should be handling this equipment with reference to the Installation Manual.
  CAUTION| This symbol shows that there is information included in the Operation Manual and/or Installation Manual

Please keep this manual after reading it.

PRECAUTIONS DURING INSTALLATION

WARNING

• Do not reconstruct the unit. Water leakage, fault, short circuit or fi re may occur if you reconstruct the unit by yourself.
• Please ask your sales agent or qualifi ed 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 specifi ed piping set for R32. Otherwise, this may result in broken copper pipes or faults.
• Do not use refrigerant other than the one indicated on the outdoor unit (R32) when installing, moving or repairing. Using other refrigerants may cause trouble or damage to the unit, and personal injury.

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 fl ammable gas. The outdoor unit may catch fi re if fl ammable gas leaks around it.
• Please ensure smooth fl 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 fl 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, break the plastic parts of the indoor unit.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

WARNING

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

WARNING

• Avoid an extended period of direct air fl ow 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 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.
• Spray cans and other combustibles should not be located within a meter 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.
• The product shall be operated under the manufacturer specifi 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 equipment, regularly ventilate the room to avoid oxygen insufficiency.
• 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, fi 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 fi n and blocked the evaporation water fl ow to drain pan. The water will drop on tangential fan and cause water splashing out from 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 causes short-circuit.Do not place plants directly under the air fl 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 defl ector 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 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.

MULTI-AIR CONDITIONER
Several indoor units can be connected to one outdoor unit. You can operate only one unit or several units according to your needs.

Combination of Operations

When the operation mode is selected:
You cannot operate the indoor units in the following combinations.

Heating

| Cooling
Dehumidifying
Fan

• The indoor unit which is turned on fi rst continues to operate. Other indoor units which are turned on later go into stanby mode and the operation lamp lights.
• To operate the indoor units turned on later, set the operation mode as same as the indoor unit turned on first.

During automatic operation:
When heating operation is automatically selected for the first indoor unit, the next indoor unit will then start to heat. Also, if cooling or dehumidifying is automatically selected for the fi rst indoor unit, the next indoor unit will also start to cool or dehumidify.

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 fl 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.

OPERATING RANGE

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

MODEL NAME AND DIMENSIONS

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

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 fl 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.
   CAUTION : 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 fi 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 that could degrade air conditioner performance and cause unit failure.

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 your wake-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 efficiency. To prevent from wasting electric energy, please clean the fi lter every 2 weeks.

Please Adjust Suitable Temperature For the 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 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 mains. If the power from mains remains “ON”, the indoor unit still consumes about 10W (depends on outdoor unit connected) 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.

MAINTENANCE

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

CAUTION

• 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 fi ns.

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.

PROCEDURE

1. Pull the fi lter toward the center until it detached from the holders. Then take it out from holders (refer to diagram).
2. Remove dust from the fi 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 fi lters. Gently insert back the fi lter into the holders.

CAUTION

• Do not wash with hot water at more than 40°C. The fi 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 fi lter may shrink.
• Do not operate the air conditioner with the fi lter removed. Dust may enter the air conditioner and cause trouble.

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

1. Is the earth line disconnected or broken?
2. Is the mounting frame seriously affected by rust and is the outdoor unit tilted or unstable?
3. Is the plug of power line fi 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.

●   Is the voltage extremely high or low?

●   Is the circuit breaker “ON”?

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

Notes

• In quiet or stop operation, the following phenomena may occassionally occur, but they are not abnormal for the operation.
  1. Slight fl 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 fi 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 specifi ed 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.

Following Regulation EU No. 517/2014 on Certain Fluorinated Greenhouse gases, it is mandatory to fill in the label attached to the unit with the total amount of refrigerant charged on the installation. Do not vent R32 into the atmosphere: R32 are fluorinated greenhouse gases covered by the Kyoto protocol global warming potential (GWP) R32 = 675. Tn of CO2 equivalent of fluorinated greenhouse gases contained is calculated by indicated GWP * Total Charge (in kg) indicated in the product label and divided by 1000.

REFRIGERANT INFORMATION

C02 = (1) x (2) / 1000

1. GWP. PCA. PRP GWP GWP. PAG. GWP GWP. GWP. GWP 675
2. Factory Charge (Refer to Specification Label)

This equipment contains fluorinated greenhouse cases covered by the Kyoto protocol. Do not vent R32 into the atmosphere.

REFRIGERANT INFORMATION

Refrigerant + CO2 = (1) x (2) / 1000 (1) GWP, PCA, PRP, GWP, GWP, PAG, GWP, GWP, GWP, GWP

• Factory Charge  (Refer to Specification Label)
• Additional Charge
• Total Charge
• Tonnes COz equivalent

Figure 1. F-Gas Label with Protection Plastic Film

Figure 2. Protection Plastic Film

Instructions to fill in the “F-Gas Label”:

1. Fill in the Label with indelible ink the refrigerant amounts: – Factory Charge, 3 – Additional Charge & 3 – Total Charge.
2. Stick the Protection Plastic Film on the F-Gas Label (delivered in a plastic bag with the Manual). To see Figure 2.

ATTENTION:
This product shall not be mixed with general household waste at the end of its life and it shall be retired according to the appropriate local or national regulations in a environmentally correct way. Due to the refrigerant, oil, and other components contained in the Air Conditioner, its dismantling must be done by a professional installer according to the applicable regulations. Contact the relevant authorities for more information.

ATTENTION:
This product shall not be mixed with general household waste at the end of its life and it shall be retired according to the appropriate local or national regulations in a environmentally correct way.Due to the refrigerant, oil and other components contained in the Air Conditioner, its dismantling must be done by a professional installer according to the applicable regulations. Contact the relevant authorities for more information.

Importer (EU/UK) : Johnson Controls Hitachi Air Conditioning Europe SAS.
EU Address : Parc Aktiland II-2, Rue de Lombardie, 69800 Saint-Priest, France
UK Address : Bldg 7, Foundation Park, Roxborough Way – SL6 3UD Maidenhead, United Kingdom

FAQ’S

Where can I find the model number of my unit?

Can I install the unit by myself?

It is recommended to ask your sales agent or a qualified technician for the installation to ensure proper installation and avoid potential issues such as water leakage, short circuit, or fire.

Can I use a different refrigerant than the one indicated on the outdoor unit?

No, using a refrigerant other than the one indicated may cause trouble or damage to the unit and personal injury. Please use the specified refrigerant.

What should I do if I smell a burning odor?

In case of an abnormal situation like a burning smell, immediately stop operating the unit, turn off the circuit breaker, and contact your agent for assistance. Continuing to operate the unit under such circumstances may result in faults, short circuits, or fire.

Can I perform maintenance on the unit myself?

It is recommended to contact your agent for maintenance. Improper self- maintenance may cause electric shock and fire.

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