Hitachi RAC-32CNH2, RAS-32CNH2 Instruction Manual

HITACHI

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SPLIT TYPE

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-32CNH2/RAC-32CNH2

OUTDOOR UNIT INDOOR UNIT

RAS-32CNH2

RAC-32CNH2

Instruction manual Page 1~18

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

32CNH2 EN1 3/25/05, 2:301

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.

●

“ ” sign in attached figure indicates prohibition.

●

Please keep this manual after reading.

PRECAUTIONS DURING INSTALLATION

●

!

WARNING

!

CAUTION

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 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 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.

!

!

!

WARNING

●

!

W

A
R
N

●

I
N
G

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

●

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.

PRECAUTIONS DURING OPERATION

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

●

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

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

●

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

32CNH2 EN1 3/25/05, 2:302

– 2 –

PRECAUTIONS DURING OPERATION

●

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

●

ENGLISH

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 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, 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.

!

●

C
A
U
T

I
O
N

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

●

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.

●

When operating the unit with the door and windows opened, (the room humidity is always above
80%) and with the air deflector 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 capability of the unit (for example: more
people entering the room, using heating equipments and etc.), the preset room temperature
cannot be achieved.

– 3 –

32CNH2 EN1 3/25/05, 2:303

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

AIR FILTER

To prevent dust from coming into the indoor unit.
(Refer page 16)

POWER PLUG (NOT PROVIDED)

INDOOR UNIT INDICATORS

Light indicator showing the operating condition.
(Refer page 5)

SUCTION GRILL (AIR INLET)

OUTDOOR UNIT

HORIZONTAL DEFLECTOR
DEFLECTOR (AIR OUTLET)

(Refer page 12)

REMOTE CONTROL

Send out operation signal to the indoor unit. So as
to operate the whole unit.
(Refer page 6)

DRAIN PIPE

Condensed water drain to outside.

CONNECTING CORD

AIR INLET (BACK, LEFT SIDE)

AIR OUTLET

●

VERTICAL

MODEL NAME AND DIMENSIONS

MODEL
RAS-32CNH2
RAC-32CNH2

32CNH2 EN1 3/25/05, 2:304

WIDTH (mm)

798
820

– 4 –

HEIGHT (mm)

265
520

DEPTH (mm)

168
280

OPERATION INDICATOR

SELECTOR SWITCH

ENGLISH

TEMPORARY SWITCH

AUTO START

Use this switch in order to set
the unit to automatically switch
ON after the power supply
resuming from the power failure.

NORMAL

Use this switch in order to
prevent the unit from switch ON
after the power supply resuming
from the power failure.

SELECTOR SWITCH IS
PRESET AT NORMAL
POSITION.

INDOOR UNIT INDICATORS

AUTO

TEMPORARY

NORMAL

START

SWITCH

OFF

ON

POWER SWITCH

OPERATION LAMP

This lamp lights during operation.
The OPERATION LAMP flashes in the following cases
during heating.

(1) During preheating

For about 2–3 minutes after starting up.

(2) During defrosting

Defrosting will be performed about once an hour
when frost forms on the heat exchanger of the
outdoor unit, for 5–10 minutes each time.

Use this switch to start and
stop when the remote
controller does not work.
Normally do not use this
button.

32CNH2 EN1 3/25/05, 2:305

FILTER LAMP

When the device is operated for a total of about 100
hours, the FILTER lamp lights to indicate that it is time
to clean the filter. The lamp goes out when the POWER
SWITCH set to OFF and ON again.

SIGNAL RECEIVER

There will be a beep sound when this receiver receives
signal from remote controller.

TIMER LAMP

This lamp lights when the timer is working.

– 5 –

NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT

■ This controls the operation function and timer setting of the room air conditioner. The range of
control is about 4 meters. If indoor lighting is controlled electronically, the range of control may be
shorter.

Signal Transmission

START/STOP Button

Press this button to start operation.
Press it again to stop operation.

FUNCTION Button

Select the operation mode.
( Page 8)

SLEEP Button

Use this button to set the sleep timer.
( Page 10)

Reserve Button

Timer setting reservation.

OFF TIMER Button

Select the turn OFF time.

ON TIMER Button

Select the turn ON time.

HIT ACHI

˚

C

Hr.

°C

Transmission Sign

The transmission sign blinks
when a signal has been send.

TEMPERATURE Button

Room temperuture setting.
Value will change more quickly
when keep pressing.
( Page 7)

FAN SPEED Button

Select the fan speed for
cooling and heating mode.
( Page 8)

AUTO SWING Button

Control the angle of the
horizontal air deflector.
( Page 12)

CANCEL Button

Cancel timer reservation.

Precautions for Use

● Do not put the remote controller in direct

sunlight and high temperature.

● Do not drop it on the floor, and protect

it from water.

● If you press the FUNCTION button

during operation, the air conditioner may
stop for about 3 minutes for protection
before you can start it again.

You can use the remote controller by fixing it on the
wall with the accessory parts.

● Before fixing it,

HOLDER

make sure the
unit can be
controlled by the
remote control
unit at the fixing

REMOTE
CONTROLLER

position.

– 6 –

32CNH2 EN1 3/25/05, 2:306