Hitachi RAS-35YHA, RAC-35YHA User Manual [nl]

SPLIT TYPE AIR CONDITIONER

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-25YHA / RAC-25YHA
RAS-35YHA / RAC-35YHA

INDOOR UNIT

OUTDOOR UNIT

RAC-25YHA
RAC-35YHA

Instruction manual

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

RAS-25YHA
RAS-35YHA

SAFETY PRECAUTION

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

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

• Pay special attention to signs of “

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 signs indicate the following meanings. (The following are examples of signs.)

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

• Please keep this manual after reading.

• 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.

WARNING

CAUTION

• 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 R410A. Otherwise, this may result in
broken copper pipes or faults.

• 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 the unit near a location where there is flammable gas.
The outdoor unit may catch fire if flammable gas leaks around it. Piping shall be
suitable supported with a maximum spacing of 1m between the supports.

• Please ensure smooth flow of water when installing the drain hose. If any failure
is found in the drain path, water drops from the indoor and outdoor units, causing
wet household effects.

• Make sure that a single phase 230V power source is used.

The use of other power sources may cause electrical components to overheat

and lead to fire.

Warning” and “ Caution”. The “Warning” section contains matters which,

PRECAUTIONS DURING INSTALLATION

PROHIBITION

CONNECT EARTH LINE

PROHIBITION

PROHIBITION

WARNING

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

• Should abnormal situation arise (like burning smell), please stop operating the
unit and remove plug from the socket or 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.

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

• Do not connect the power calbe with an extension cable or do not plug too many

leads of the other electric appliance into the socket where this cable is plugged.
In addition, wire the cable with some allowances to prevent the cable from stretching.
Not doing so will cause an electrical shock, heat generation or fire.

• Do not bundle the power cable, pull it, put something on it, heat it, process it, or
put it between things. Breakage of the power cable may result.
Use of a damaged cable may cause an electrical shock or a fire.

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

“OFF”

PROHIBITION

– 2 –

CAUTION

PRECAUTIONS DURING OPERATION

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

“OFF”

• 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 specification and not for
any other intended use.

DON’T WET

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

PROHIBITION

• During thunder storm, disconnect the plug top or turn off the circuit breaker.

• Do not attempt to operate the unit with wet hands, this could cause fatal accident.

STRICTLY OBSERVE

PRECAUTIONS

• 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.

PROHIBITION

PROHIBITION

ENGLISH

DEUTSCHFRANÇAISITALIANOSPANISHPORTUGUÊS

• 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 wash the unit with water or place a water container such as a
vase on the indoor unit.

PROHIBITION

Electrical leakage could be present and cause electric shock.

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

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

PROHIBITION

• 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

PROHIBITION

etc.), the preset room temperature cannot be achieved.

• Indoor unit cleaning must be performed by authorized personnel only. Consult your
sales agent.

Using a commercially available detergent or similar can damage the plastic parts

or clog the drain pipe, causing water to drip with potential electric shock hazard.

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

• Do not touch the air outlet, bottom surface and aluminum fin of the outdoor
unit.

DON’T TOUCH

You may get hurt.

• Do not touch the refrigerant pipe and connecting valve.
Burns may result.

– 3 –

∂ППЛУИО¿

DON’T TOUCH

РУССКИЙ

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

Air filter

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

Front panel

Indoor unit indicators

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

Horizontal deflector Vertical deflector
(Air Outlet)

(Refer page 15)

Remote controller

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

OUTDOOR UNIT

Air outlet

When “heating” operation is
performed, cool air blows
an d whe n “co o li ng ” or
“dehumidifying” operation is
performed, warm air blows.

Drain port
(Bottom)

(Lower section of the side)

Earth terminal

Drain hose

Drains the dehumidified water from the indoor unit to the
outdoor during “cooling” or “dehumidifying” operation.

Piping and Wiring

Air inlets (Rear and left sides)

About the outdoor unit:

• When “Stop” is selected during operation of the
indoor unit, the fan of the outdoor unit continues
turning for 10 to 60 seconds to cool the electric parts
down.

• In heating operation, condensate or water due to
defrosting will flow. Do not cover the drain port of the
outdoor unit because such water may freeze in the
chilly area.

• When the outdoor unit is hung on the ceiling, instal
the bush and drain pipe on the drain port and drain­water.

MODEL NAME AND DIMENSIONS

MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm)

RAS-25YHA, RAS-35YHA 780 280 215

RAC-25YHA, RAC-35YHA 750 548 288

– 4 –

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT INDICATORS

FILTER LAMP (Green)

When the device is operated for a total of about 200
hours, the FILTER lamp lights indicates that it is
time to clean the filter.The lamp goes out when the

“
operation is stopped.

OPERATION LAMP (Yellow)

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

TIMER LAMP (Orange)

This lamp lights when the timer is working.

(AUTO SWING)” button is pressed while the

frost forms on the heat exchanger of the outdoor unit,
for 5-10 minutes each time.

ENGLISH

DEUTSCHFRANÇAISITALIANOSPANISHPORTUGUÊS

TEMPORARY SWITCH

Use this switch to start and stop when the remote controller does not work.

This temporary operation will be at the most recent setting made. (The unit
will immediately go into automatic operation once power is switched on.

CAUTION

Turn off the circuit breaker or pull out the power plug if the
unit is not be operated for a long period.

If the power stays on and the unit is not operated, power is slightly consumed in the control circuit.

The power is saved by turning off the power switch (or the circuit breaker when the power is supplied from

the outdoor unit).

Attaching the air cleansing and deodorizing filters (Accessories) to the filter frame.

• Attach the air cleansing and deodorizing filters to the frame
by gently compress its both sides and release after insertion
into filter frame.

• The cooling capacity is slightly weakened and the cooling speed
becomes slower when the air cleansing and deodorizing filters
are used.

• Air cleansing and deodorizing filters can be used for about 1 year.
When you want to renew it, please ask your sales agent.

Attaching the negative ion stick to the filter frame

• Put the negative ion stick to the loer hooks and install it so as
to push up the upper hooks.

Frame

Upper hook

∂ППЛУИО¿

– 5 –

Negative
ion stick

Lower hook

РУССКИЙ

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 con-

trolled from the remote controller.

• Handle the remote controller with care. Dropping it or getting it wet may compromise its signal transmission ca­pability.

• After new batteries are inserted into the remote controller, the unit will initially require approximately 10 seconds
to respond to commands and operate.

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.

AUTO SWING button

Controls the angle of the horizontal air deflector.

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).
(This button allows selecting the optimal or preferred fan speed for each opera­tion mode.)

SLEEP button

Use this button to set the sleep timer.

TEMPERATURE buttons

Use these buttons to raise or lower the temperature setting. (Keep pressed,

and the value will change more quickly.)

TIME button

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

RESET buttons

Press this button after the batteries are replaced or when some irregularopera-

tion is found.

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.

FAN SPEED selector
AUTO SWING button
TIMER control

Use these buttons to set the timer.

AUTO

HEAT

DEHUMIDIFY

COOL

FAN

FAN SPEED

LOW
MED
HI

SLEEPING

STOP (CANCEL)

START (RESERVE)

START/STOP

TIME

TIMER SET

TIMER SELECTOR

ON TIMER
OFF TIMER

AUTO SWING

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.

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 or COOL depending on the initial room temperature.
The selected mode of operation will change when the room temperaturevaries varies.

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

1

• When AUTO has been selected, the device will automaticallydetermine
the mode of operation, HEAT or COOL dependingon the current
room temperature.

• When AUTO is first selected, the device will determine thecurrent
room temperature and selec t th e pr o per operat i o n m o de
accordingly.

• When the air conditioner has adjusted the room’s temperatureto
the near preset temperature, it will begin to monitoroperation. If the
room temperature subsequently changes,the air conditioner will
once again select the appropriateoperation (heating or cooling) to
adjust the temperature tothe preset temperature. The monitoring
operation range is+ 3°C relative to the preset temperature.

• If the mode automatically selected by the unit is notsatisfactory,
manually change the mode setting (heat,dehumidify, cool or fan).

ENGLISH

DEUTSCHFRANÇAISITALIANOSPANISHPORTUGUÊS

START

STOP

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

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

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

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

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

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

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

– 7 –

∂ППЛУИО¿

РУССКИЙ

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.

• In order to keep reliability of the device, please use this device above -10°C of the outdoor
temperature.

Press the FUNCTION selector so that the display indicates

1

(HEAT).

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

(AUTO) : The fan speed changes automatically according

to the temperature of the air which blows out.

2

3

START

STOP

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

to press the

(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).

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

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

(START/STOP) button next time.

Defrosting

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

During defrosting operation, the operation lamp blinks in cycle of 3 seconds on and 0.5 second off.

The maximum time for defrosting is 20 minutes.

(If the piping length used is longer than usual, frost will likely to form.)

– 8 –