Hitachi RA-08JF2, RA-10JF2 Operation And Installtion Manual

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SAFETY PRECAUTION

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

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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.

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“ ” sign in attached figure indicates prohibition.

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Please keep this manual after reading.

PRECAUTIONS DURING INSTALLATION

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Please ask your sales agent or qualified technician for the installation of your unit. Water

WARNING

CAUTION

WARNING

leakage, short circuit or fire may occur if you install the unit yourself.

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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.

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A circuit breaker should be installed depending on the mounting site of the unit. Without
a circuit breaker, the danger of electric shock exists.

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Do not install near location where there is flammable gas. The unit may catch fire if
flammable gas leaks around it.

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Please ensure smooth flow of water when installing the drain hose. (For drain model)

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

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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.

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Please contact your agent for maintenance. Improper self maintenance may cause electric shock
and fire.

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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.

PRECAUTIONS DURING OPERATION

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

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Do not put objects like thin rods into the panel of blower and suction side because the high-speed fan inside may cause
danger.

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

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

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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.

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When operating the unit with burning equipments, regularly ventilate the room to avoid oxygen insufficiency.

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W

A

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Please ensure that unit mounting frame is always stable, firm and without defect. If not, the unit may collapse and

R

cause danger.

N

I

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Do not place plants directly under the air flow as it is bad for the plants.

N
G

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Turn off the circuit breaker if the unit is not be operated for a long period.

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Do not put water container (like vase) on the unit to avoid water dripping into the unit. Dripping water will damage
the insulator inside the unit and causes short circuit.

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When operating the unit with the door and windows opened, and with the air deflector facing down for a long period of time, water
will condensed on the air deflector and drips down occasionally. This will wet your furniture. Therefore, do not operate under such
condition for a long time.

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If the amount of heat in the room is above the cooling capability of the unit (for example: more people entering the room, using heating
equipments and etc.), the preset room temperature cannot be achieved.

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.

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Do not splash or direct water to the body of the unit when cleaning it as this may cause short circuit.

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Please switch off the unit and turn off the circuit breaker during cleaning, the high-speed fan inside the unit may cause
danger.

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

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PARTS IDENTIFICATION AND OPERATIONS

CONTROL PANEL

OPERATION MODE SELECTOR DIAL

AUTO SWING

1

2

1 Cabinet
2 Suction Grille

3

3 Horizontal Deflectors

4
5

4 Vertical Deflector
5 Air Exhaust Lever
6 Front Cover

76

Model Width Height Depth

RA-08JF2

QUIET COOL

181/2", 470mm 139/16", 345mm 237/20", 610mm

OFF

HI FAN

HI COOL

TEMPERATUREMAIN SWITCH

9

8

10

COOLER

7

6

5

TEST

4

1

2

3

RA-10JF2

CAUTION

BEFORE

RESTARTING

ON

OFF

WAIT 3 MINUTES

AUTO SWING

QUIET FAN

7 Switch Panel Cover

1 Auto Swing Switch
2 Operation Mode Selector Dial
3 Thermostat Dial

123

● When the AUTO SWING switch is turned to “ON” position, the vertical deflectors automatically

oscillate right and left sweeping the cold air alternately to obtain comfortable cooling.

● The vertical deflectors may be stopped at any position when the AUTO SWING switch is

turned “OFF”.

OFF Stop the fan and cooling operation.

QUIET FAN The air conditioner will perform fan operation only at low speed.

HI FAN The air conditioner will perform fan operation only at high speed.

QUIET COOL Cooling operation with low fan speed. This is recommended for sleeping comfort.

HI COOL Cooling operation with high fan speed for maximum cooling power.

● The starting operation will occur an abnormal sound (turbo sound) which doesn’t affect the

operation.

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Setting the desired room temperature. Turn the dial further clockwise for cooler indoor temperature.

AIR DEFLECTORS

VERTICAL DEFLECTORS

HORIZONTAL DEFLECTORS

THERMOSTAT DIAL

●

CAUTIONS

The compressor operates continuously by setting the temperature dial to
“TEST”. This setting is used for technician. If the unit is operated at this position,
the heat exchanger may freeze and causing water leakage or other malfunction.
Do not set to “TEST” for normal usage.

●

When the compressor stops by turning the temperature dial counterclockwise
in cooling operation, wait 3 minutes before turning it clockwise to restart it.

Vertical deflectors at both sides of outlets can
be set to either auto-swing or static position to
direct discharge air rightward, leftward or forward
direction.

Vertical

Vertical
Deflector

CAUTION

To avoid dew forming on the deflectors which eventually may drip to the floor, please do not adjust
horizontal deflectors extremely downward position or vertical deflectors extremely leftward or rightward
position during cool operation for a long time.
Also, do not adjust the vertical deflectors position by hand or any other object.

Deflector

Horizontal deflectors at both sides of the outlets
can be set to direct discharge air upward,
downward or forward direction.

Horizontal

Horizontal
Deflectors

Deflectors

AIR EXHAUST LEVER

Set the air exhaust lever to the OPEN (pull)
position for air ventilation in the room. The air
exhaust lever should normally be kept in CLOSE
(push inward) position during cooling operation
and in the case of typhoon.

Air Exhaust Lever

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AIR CLEANING FILTER

ALWAYS STOP THE OPERATION BEFORE INSTALLING THE AIR CLEANING FILTER.

1. Open the suction grille

2. Remove the normal
filter

Air Cleaning
Filter

3. Install the air cleaning filter
in the frame

4. Install back the normal filter
and close the suction grille

Hook

AIR CLEANING FILTER IS WASHABLE AND REUSABLE UP TO 20 TIMES BY USING VACUUM
CLEANER OR RINSE WITH RUNNING TAP WATER.

AIR CLEANING FILTER SHOULD BE CLEANED EVERY MONTH OR SOONER IF NOTICEABLE
LOADING OCCURS. WHEN USE OVERTIME, IT MAY LOSE ITS DEODORIZING FUNCTION.

FOR MAXIMUM PERFORMANCE, IT IS RECOMMENDED TO REPLACE IT EVERY 3-6 MONTHS
DEPENDING ON APPLICATION REQUIREMENT.

TYPE NUMBER FOR THIS AIR CLEANING FILTER IS <SPX-CFH8W>, PLEASE USE THIS NUMBER
FOR ORDERING WHEN YOU WANT TO RENEW IT.

NOTES ON OPERATION

TEMPERATURE AND HUMIDITY

Avoid to use the room air conditioner for cooling operation when the outside temperature is below
21°C (70°F). Recommended operation humidity should be below 80%. Continuous long operation at
over 80% humidity (indoor) will cause some dews form on the outlet grille of the unit.

NOISE

In a quiet environment or stopping and starting operation, phenomena like flowing noise of refrigerant
in the refrigerating cycle and rubbing noise from the fan casing may occasionally occur, but this is
normal for the operation.
Water will condense on the evaporator coil and collected in the bottom tray, it is picked up by the
condenser fan and blown onto the condenser coil, this creates a “splashing” noise which is normal.

ODOR

The odor will possibly be emitted from the room air conditioner especially at the starting of operation
and in a high humidity condition. This is not abnormal phenomena because of the various kind of
odors emitted by smoke, food stuffs, cosmetics and others which may stick to the room air conditioner.
So, please clean the air filter and evaporator at the beginning of long no operation period to reduce
the odor.

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THE IDEAL WAYS OF OPERATION

Suitable Room Temperature

FOR USER’S INFORMATION

Install Curtain or Blinds

Ventilation

Warning

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

Do Not Forget To Clean The Air Filter

Please Adjust Suitable Temperature

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

For Baby And Children

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 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.

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.

Warning

To protect the whole unit during lightning, please stop operating the unit
and remove the plug from the socket.

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When Lightning Occurs

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MAINTENANCE

CAUTION

ALWAYS TURN OFF AND UNPLUG BEFORE ANY CLEANING
OR MAINTENANCE TO ENSURE SAFETY.

AIR FILTER

If the air filter is clogged with dust, the air flow volume will decrease and resulting in poor
cooling performance, and increased operating noise. Be sure to clean the filter about every
20 days.

1 Remove the suction grille by pulling at both

bottom corner and then lift it up slightly before
pull downward to unhook the suction grille.

2 Lift and unhook the bottom of the air filter and

remove it.

SUCTION
GRILLE

3 Remove dust from the filter by using a vacuum

cleaner. If the filter is very dirty, wash it with
detergent and rinse properly with water. Dry it
with soft cloth and do not expose it to heat or
under direct sunlight.

4 Install the filter by fitting the top hooks and then

hook the bottom of the filter.

5 Attach the suction grille back to its place by

hooking at the top side to the front cover, then
gently push at both bottom corner.

CAUTION

● Do not use hot water above 40°C for cleaning the filter.

● Do not operate the air conditioner with the filter removed.

HOOK

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FRONT COVER AND SUCTION GRILLE

Clean the front cover and suction grille with a soft dry cloth. When it is excessively dirty, wipe
it with a soft cloth dampened with mild soap, then wipe it again thoroughly with a soft dry
cloth.

The suction grille can also be removed and be washed with water and mild soap. Remove
the suction grille in the following manner.

1 Pull the suction grille at both bottom

corner and released it.

2 Lift up the suction grille slightly.

3 Remove the suction grille by pulling

downward to release it from the hook
hole located at the top side.

CAUTION

Never use hot water above 50°C, erosive chemicals or brush to clean the front cover and
suction grille because they will damage the plastic surface.

BEFORE ASKING FOR SERVICE

Check the following items before asking for service. If the malfunction persists,
please contact service centre.

Symptom Cause

Does not operate 1 Is the power cord loosened or unplugged?
at all 2 Is the fuse blown out or the circuit breaker tripped?

3 Is the voltage normal?
4 Is the main switch set to “OFF” position?

Poor cooling 1 Is the air filter covered with heavy dust?
performance Clean the filter and replace it.

2 Is the temperature setting correctly?
3 Is the sunlight fall directly in the air conditioner?
4 Is the air flow on the rear side (outdoor) blocked?

Leave a space of 900 mm (3 feet) behind the rear side of air
conditioner.

5 The doors or windows may be opened widely or there are

other sources of heat in the room.

6 Is the ventilation damper opened?

CAUTIONS

IF THE POWER SUPPLY CORD IS DAMAGED, IT MUST BE REPLACED BY THE ONE
SPECIALLY PREPARED AND ONLY AVAILABLE FROM THE MANUFACTURER OR ITS
SERVICE AGENT.

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