Hitachi RAS-80YHA User Manual

SPLIT TYPE

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-80YHA/RAC-80YHA

INDOOR UNIT

OUTDOOR UNIT

RAS-80YHA

RAC-80YHA

Instruction manual Page 1~22

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

– 1 –

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.

●

The sign indicate the following meanings.

Make sure to connect earth line.

Indicates the instructions that must be followed.

●

Please keep this manual after reading.

PRECAUTIONS DURING INSTALLATION

●

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

WARNING

CAUTION

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.

●

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.

The sign in the figure indicates prohibition.

W

A
R
N

N
G

W

A
R
N

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.

I

●

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 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.

I

●

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

●

This unit has UV LED which emits ultra violet light.
AVOID DIRECT EYE EXPOSURE.

– 2 –

PRECAUTIONS DURING OPERATION

●

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 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.

●

Do not use any aerosol or hair sprays near the indoor unit. This chemical
can adhere on heat exchanger fin and blocked the evaporation water flow
to drain pan. The water will drop on tangential fan and cause water splashing

C

out from indoor unit.

A
U
T

●

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

I
O
N

●

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 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 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 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 is not intended for use by young children or infirm persons unless they have been
adequately supervised by a responsible person to ensure that they can use the appliance safely.

●

Young children should be supervised to ensure that they do not play with the appliance.

– 3 –

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

AIR FILTER

To prevent dust from coming into the
indoor unit.
(Refer page 21)

FRONT PANEL (AIR INLET).

INDOOR UNIT INDICATORS

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

OUTDOOR UNIT

HORIZONTAL DEFLECTOR
VERTICAL DEFLECTOR (AIR
OUTLET)

(Refer page 16)

●

REMOTE CONTROLLER

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

AIR INLET (BACK, LEFT SIDE)

AIR OUTLET

Blow out warm air.

●

MODEL NAME AND DIMENSIONS

MODEL

RAS-80YHA

RAC-80YHA

WIDTH (mm)

1150

925

– 4 –

HEIGHT (mm)

333

875

DEPTH (mm)

245

315

Press

emporary Switch

Non-conductor Stick

OPERATION INDICATOR

TEMPORARY SWITCH

Temporary Switch

Press

Non-conductor Stick

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 previously set 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.

INDOOR UNIT INDICATORS

TIMER LAMP

This lamp lights when the timer is working.

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.

FILTER LAMP

When the device is operated for a total of about 200
hours, the FILTER lamp lights to indicate that it is time
to clean the filter. The lamp goes out when the
“ (AUTO SWING)” button is pressed while the
device is on “STANDBY MODE”.

– 5 –

NAMES AND FUNCTIONS OF EACH PART

REMOTE CONTROLLER

This controls the operation of the indoor unit. The range of control is about 7 meters. If indoor lighting
is controlled electronically, the range of control may be shorter.
This unit can be fixed on a wall using the fixture provided. Before fixing it, make sure the indoor unit can
be controlled from the remote controller.

● Signal emitting window/transmission sign

Point this window toward the indoor unit when controlling it.
The transmission sign blinks when a signal is sent.

● Display

This indicates the room temperature selected, current time, timer status,
function and intensity of circulation selected.

● START/STOP button

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

● FAN SPEED selector

This determines the fan speed. Every time you press this button, the intensity
of circulation will change from (AUTO) to (HI) to (MED) to (LOW)
(during the (FAN) mode, from HI to MED to LOW).

● AUTO SWING button

Controls the angle of the horizontal air deflector.

● TEMPERATURE buttons

Use these buttons to raise or lower the temperature setting. (Keep pressed,
and the value will change more quickly.)

● SLEEP button

Use this button to set the sleep timer.

● TIME button

Use this button to set and check the time and date.

● RESET buttons

● FUNCTION selector

Use this button to select the operating mode. Every time you press it,
the mode will change from (AUTO) to (HEAT) to (DEHUMIDIFY) to

(COOL) and to (FAN) cyclically.

● PARALLEL SWING button

Controls the angle of the vertical air deflectors to parallel.

● SYMMETRY SWING button

Controls the angle of the vertical air deflectors to symmetry.

● TIMER control

Use this button to set the timer.

● OFF-TIMER button Select the turn OFF time.

● ON-TIMER button Select the turn ON time.

● RESERVE button Time setting reservation.

● CANCEL button Cancel time reservation.

Precautions for Use

● Do not put the remote controller in the following places.

● In direct sunlight.

● In the vicinity of a heater.

● Handle the remote controller carefully. Do not drop it on the floor,

and protect it from water.

● Once the outdoor unit stops, it will not restart for about 3 minutes

(unless you turn the power switch off and on or unplug the power
cord and plug it in again).

This is to protect the device and does not indicate a failure.

● If you press the FUNCTION selector button during operation, the

device may stop for about 3 minutes for protection.

– 6 –

VARIOUS FUNCTIONS

■ Auto Restart Control

● If there is a power failure, operation will be automatically restarted when the power is resumed with previous operation mode

and airflow direction.
(As the operation is not stopped by remote controller.)

● If you intend not to continue the operation when the power is resumed, switch off the power supply.

When you switch on the circuit breaker, the operation will be automatically restarted with previous operation mode and airflow
direction.
Note: 1. If you do not require Auto Restart Control, please consult your sales agent or OFF by remote control.

2. Auto Restart Control is not available when Timer or Sleep Timer mode is set.

AUTOMATIC OPERATION

The device will automatically determine the mode of operation, HEAT, COOL or DEHUMIDIFY depending on the current room
temperature. The selected mode of operation will change when the room temperature varies.

Press the FUNCTION selector so that the display indicates the (AUTO) mode of operation.

● When AUTO has been selected, the device will automatically determine the mode of
operation, HEAT, COOL or DEHUMIDIFY depending on the current room temperature.

1

● If the mode automatically selected by the unit is not satisfactory, manually change the
mode setting (heat, dehumidify, cool or fan).

RESET

START

STOP

■ As the settings are stored in memory in the remote controller, you only have to press the

Press the (START/STOP) button.
Operation starts with a beep.
Press the button again to stop operation.

(START/STOP) button next time.

You can raise or lower the temperature setting as necessary by maximum of 3°C.

°C

● The preset temperature and the actual room temperature may vary somewhat depending on
conditions.

● The display does not indicate the preset temperature in the AUTO mode. If you change the
setting, the indoor unit will produce a beep.

Press the (FAN SPEED) button, AUTO and LOW is available.

■ Condition of Automatic Operation

Press the temperature button and the temperature setting will change by
1°C each time.

Initial room temperature
(approx.)

-

Over 27°C COOL

-

23~27°C

-

Under 23°C HEAT

DEHUMIDIFY

Temperature settingFunction

27°C

Slightly lower than the
room temperature

23°C

– 7 –

FAN SPEED

HI at start, MED or LOW
after the preset temperature
is reached

LOW

HI at start, MED or LOW
after the preset temperature
is reached

HEATING OPERATION

● Use the device for heating when the outdoor temperature is under 21°C.

When it is too warm (over 21°C), the heating function may not work in order to protect the device.

Press the FUNCTION selector so that the display indicates

1

2

(HEAT).

Set the desired FAN SPEED with the (FAN SPEED) button
(the display indicates the setting).

(AUTO): The fan speed is HI at first and varies to

MED or LOW automatically when the preset
temperature has been reached.

(HI) : Economical as the room will become warm

quickly.
But you may feel a chill at the beginning.

(MED) : Quiet.

(LOW) : More quiet.

Set the desired room temperature with the TEMPERATURE
buttons (the display indicates the setting).

3

The temperature setting and the actual room temperature may
vary somewhat depending on conditions.

START

STOP

■ As the settings are stored in memory in the remote controller, you only

Press the (START/STOP) button. Heating operation starts
with a beep. Press the button again to stop operation.

have to press the (START/STOP) button next time.

The range of 18-22°C is recommended as the
room temperature for heating.
If the temperature setting is 20°C, the room
temperature will be controlled at around 20°C.

– 8 –