Hitachi RAS-D10EX3, RAC-D10EX3, RAC-D14EX3, RAS-D14EX3 Instruction Manual

SPLIT TYPE AIR CONDITIONER

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-D10EX3/RAC-D10EX3
RAS-D14EX3/RAC-D14EX3

HSILGNE

OUTDOOR UNIT

RAC-D10EX3
RAC-D14EX3

Instruction manual

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

Manualde instrucciones

Para obtener el mejor funcionamiento y asegurar años
de uso libre de problemas, lea cuidadosamente este
manual de instrucciones.

Page 1~26 Pag. 53~78

27~52Página

INDOOR UNIT

RAS-D10EX3
RAS-D14EX3

Manuale di istruzioni

Per garantire la migliore prestazione e la più lunga
durataleggere attentamente e al completo le seguanti
istruzioni

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Ф‰ЛБ›В˜¯Ъ‹ЫЛ˜.

™ÂÏ›‰· 79~103

–1–

–2–

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

Warning” and “

Caution”. The “Warning” section contains

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This sign in the figure indicates prohibition.

• 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.

WARNING

CAUTION

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 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.

Indicates the instructions that must be followed.

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

•

PROHIBITION

because the high-speed fan inside may cause danger.

“OFF”

PROHIBITION

PROHIBITION

PROHIBITION

–3–

PRECAUTIONS DURING OPERATION

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

PROHIBITION

WARNING

“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.

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

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

DON’T WET

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

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

PROHIBITION

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 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.

PROHIBITION

PROHIBITION

PROHIBITION

CAUTION

• 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.

• This appliance especially 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.

• 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.

DON’T TOUCH

PROHIBITION

PROHIBITION

PROHIBITION

• 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 this appliance safely.

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

– 4 –

NAMES AND FUNCTIONS OF EACH PART

INDOOR UNIT

HSILGNE

Air cleansing filter

Air filter

To prevent dust from coming into the indoor unit.

Front panel
Moveable panel

It will be open when the air conditioner is operate and
close when the air conditioner is not in operation.
(Occasionally it may not be open during the operating
mode)

Horizontal deflector Vertical deflector
(Air Outlet)

Indoor unit indicators

Light indicator showing the operating condition.

OUTDOOR UNIT

Air outlet

When “heating” operation is
performed, cool air blows
and when “cooling” or
“dehumidifying” operation is
performed, warm air blows.

Drain port

(Bottom)

(Lower section of the side)

Earth terminal

Remote controller

Send out operation signal to the indoor unit. So as to
operate the whole unit.

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, install
the bush and drain pipe on the drain port and drain
water.

MODEL NAME AND DIMENSIONS

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

RAS-D10EX3, RAS-D14EX3 795 295 198

RAC-D10EX3, RAC-D14EX3 750 548 288

– 5 –

INDOOR UNIT INDICATORS

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.

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 every one
hour when frost forms on the heat exchanger of the
outdoor unit, for 5–10 minutes each time.

SIGNAL RECEIVING PORT

TIMER LAMP

This lamp lights when the timer is working.

OPERATION INDICATOR

1. Opening up the front panel

Moveable panel

Front panel

Hand grip point

Do not hold the moveable panel

Hand grip point

Lift the front panel

when the front panel is in either
opened/closed position.

TEMPORARY SWITCH

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

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.

Y

R
A
R

PO

M
E
T

H
C
T

I
W

S

TEMPORARY
SWITCH

CAUTION

Never try to force open/close the moveable panel manually.
Manually opening or closing the moveable panel may cause breakdowns
automatically close or open when the power supply is switched on or switched off and whenever the unit
is in operations or has stopped operating.)

– 6 –

. (The moveable panel will

2. Closing the Front Panel

1

Pull toward the down direction. Initially press the left and the right sides of the

front panel and finally press the central portion
until you hear a clicking sound.

!

CAUTION

When front panel is shaky, there is a possibility panel coming off and
falling down.
Do not apply extra force on the front panel when it is opened up in
the upright position.
Also frequent removal of the front panel from the front cover may
cause damage.

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1

2

Note

Avoid to use the room air conditioner for cooling operation when the outside temperature is below

-10°C (14°F).
The recommended maximum and minimum operating temperatures of the hot and cold sides
should be as below:

Minimum Maximum Minimum Maximum

Indoor Dry bulb °C 21 32 20 27

Wet bulb °C 15 23 12 19

Outdoor Dry bulb °C 21 43 2 21

Wet bulb °C 15 26 1 15

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– 7 –

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, in some cases, the control signal may not be received.
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.

• 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.

AIR PURIFIER button

Use this button to start air purifying function.

FAN SPEED selector

This determines the fan speed. Every time you press this button, the intensity of
circulation will change from

(AUTO)

to

(HI)
(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.

to

(MED)

to

(LOW)

to

(SILENT).

AUTO

HEAT

DEHUMIDIFY

COOL

FAN

FANSPEED

SILENT
LOW
MED
HI

SLEEPING

STOP (CANCEL)

START (RESERVE)

START/STOP

TIME

TIMER SET

TIMER SELECTOR

ON TIMER
OFF TIMER

AUTO SWING

EXTENDED AIRFLOW

AIR PURIFIER

RESET button

Press this button after the batteries are replaced or when some irregular
operation 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
EXTENDED AIRFLOW button

Pushes air out further for an extended airflow

TIMER control

Use these buttons 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.

– 8 –