Hitachi RAD-25NH5 User manual

˚
CH
INDOOR UNIT
SPLIT TYPE AIR CONDITIONER
INDOOR UNIT
Instruction manual Page 1~20
To obtain the best performance and ensure years of
trouble free use, please read this instruction manual
completely.
Manual de instrucciones Página 81~100
Para obtener el mejor funcionamiento y asegurar años
de uso libre de problemas, lea cuidadosamente este
manual de instrucciones.
Bedienungsanleitung Seite 21~40
Bitte lesen Sie diese Bedienungsanleitung aufmerksam
durch, um durch richtige Bedienung jahrelangen und
störungsfreien Betrieb zu gewährleisten.
Manual de instruções Página 101~120
A fim de obter um bom funcionamento e de garantir
uma utilização sem falhas durante muitos anos, éfavor
ler este manual de instruções completamente.
Mode d’emploi Page 41~60
Des performances optimales et un fonctionnement à
long terme seront assurés en appliquant les présentes
instructions après avoir entièrement lu ce mode
d’emploi.
O‰ËÁ›Â˜ ¯Ú‹Ûˆ˜ ÛÂÏ›‰· 121~140
°È¿ Ó· Â›Ó·È ÂÁÁ˘Ë̤ÓË Ë Î·Ï‡ÙÂÚË ‰˘Ó·Ù‹ ÏÂÈÙÔ˘ÚÁ›·
Î·È Ë ¯ˆÚ›˜ ‚Ï¿‚˜ Ì·ÎÚÔÚfiıÂÛÌË ¯Ú‹ÛË Ù˘
Û˘Û΢‹˜, ‰È·‚¿ÛÙ fiϘ ÙȘ οوıÈ Ô‰ËÁ›Â˜.
Manuale di istruzioni Pag. 61~80
Per garantire la migliore prestazione e la piùlunga
durataleggere attentamente e al completo le seguanti
istruzioni.
àÌÒÚÛ͈Ëfl ÔÓ ˝ÍÒÔÎÛ‡Ú‡ˆËË ÒÚ. 141~161
ÑÎfl o·ecÔe˜eÌËfl ÌaËÎyÛ¯Ëx ˝ÍcÔÎyaÚaˆËoÌÌ˚x
xapaÍÚepËcÚËÍ Ë ÏÌo„oÎeÚÌeÈ ·eÁoÚÍaÁÌoÈ pa·oÚ˚
o·opy‰o aÌËfl Ìeo·xo‰ËÏo ÔoÎÌocÚ¸˛ oÁÌaÍoÏËÚ¸cfl
c ‰aÌÌoÈ àÌcÚpy͈ËeÈ Ôo ˝ÍcÔÎyaÚaˆËË.
MODEL
RAD-25NH5
RAD-35NH5
RAD-25NH5
RAD-35NH5

–2 –
WARNING
CAUTION
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 signs indicate the following meanings. (The following are examples of signs.)
•Please keep this manual after reading.
•Should abnormal situation arise (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 SHIFTING OR MAINTENANCE
PRECAUTIONS DURING OPERATION
This sign in the figure indicates prohibition. Indicates the instructions that must be followed.
•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.
•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 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.
•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.
PRECAUTIONS DURING INSTALLATION
WARNING
PROHIBITION
CONNECT EARTH LINE
PROHIBITION
PROHIBITION
"OFF"
•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, please stop operating the unit and turn off the
circuit breaker.
•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.
PROHIBITION
PROHIBITION
PROHIBITION
WARNING
PROHIBITION
"OFF"

–3 –
ENGLISH
DEUTSCHFRANÇAISITALIANOSPANISHPORTUGUÊS∂ÏÏËÓÈοРУССКИЙ
•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.
•Be sure to stop the operation by using the remote controller and turn off the circuit
breaker during cleaning, the high-speed fan inside the unit may cause danger.
•Do not place plants directly under the air flow as it is bad for the plants.
•Do not climb on the outdoor unit or put objects on it.
•Turn off the circuit breaker if the unit is not be operated for a long period.
•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.
•Do not touch the air outlet, bottom surface and aluminum fin of the outdoor
unit.
You may get hurt.
•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.
•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.
•Do not touch the refrigerant pipe and connecting valve.
Burns may result.
•The product shall be operated under the manufacturer specification and not for any
other intended use.
•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.
Electrical leakage could be present and cause electric shock.
PROHIBITION
CAUTION
DON'T WET
PROHIBITION
PROHIBITION
PROHIBITION
DON’T TOUCH
DON’T TOUCH
"OFF"
PRECAUTIONS DURING OPERATION
PROHIBITION
STRICTLY OBSERVE
PRECAUTIONS
PROHIBITION
"OFF"
PROHIBITION
PROHIBITION
PROHIBITION

–4 –
NAMES AND FUNCTIONS OF EACH PART
INDOOR UNIT
FULL DUCT
Discharge grille
Air deflector Indicator
Suction grille
Filter
Remote controller
Remote controller
Remote controller
Air deflector Discharge grille
Indicator
Suction grille
Filter
Indicator
Suction grille
Filter
Air deflector
SEMI DUCT NON DUCT
Discharge grille
MULTI-AIR CONDITIONER
With this multi-air conditioner, several indoor units can be connected to one outdoor unit to be
driven.You can operate the required number of indoor units.
Combination of operations:
•You cannot operate the indoor units in
the following combinations.
One unit Other unit
Cooling
Heating Dehumidifying
Circulating (fan)
•The indoor unit which is switched on first continues to
operate, but other indoor units which is switched on later
does not operate while the lamp lights.
•To restart an indoor unit which was operated later, stop
the indoor unit which was operated first or later and reset
the type of operation, then perform operation again.
Adjusting the number of indoor units:
Decrease the number of
indoor units to be operated
especially when it is very hot
or very cold or when you
want to reach the preset
temperature quickly.
Stopped indoor units:
When an indoor unit is operated in the cooling,
heating or dehumidifying mode in one room,
the sound of refrigerant flow may be heard
from a stopped indoor unit or a stopped indoor
unit may become warm. This is because the
indoor unit returns refrigerant to the outdoor
unit to be ready for operation.
When operation mode is selected:
During automatic operation:
•When heating operation is automatically selected for the first indoor unit, the next indoor unit will then start to
heat. Also, if cooling or dehumidifying is automatically selected for the first indoor unit, the next indoor unit will
also start to cool or dehumidify.

–5 –
ENGLISH
DEUTSCHFRANÇAISITALIANOSPANISHPORTUGUÊS∂ÏÏËÓÈοРУССКИЙ
MODEL NAME AND DIMENSIONS
MODEL WIDTH HEIGHT DEPTH
RAD-25NH5
RAD-35NH5 750mm (29-17/32") 235mm (9-1/4") 400mm (15-3/4")
(INDOOR UNIT)
●TEMPORARY SWITCH
Use this switch to start and stop when the remote controller
does not work. Normally do not use this button.
●TIMER lamp
This lamp lights when the timer is working.
●OPERATION lamp
This lamp lights during operation.
During heating, the operation indicator may blink, blowing very
lightly or totally stopping under the following conditions:
(1) During preheating (heating operation)
For about 2~3 minutes after start up.
(2) During defrosting (heating operation)
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. (If the piping length used is longer than
usual, frost will likely to form.)
INDOOR UNIT INDICATORS

–6 –
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.
•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.
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.
●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.
●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
●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
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.)
●AUTO SWING button
Controls the angle of the horizontal air deflector.
●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.
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

–7 –
ENGLISH
DEUTSCHFRANÇAISITALIANOSPANISHPORTUGUÊS∂ÏÏËÓÈοРУССКИЙ
VARIOUS FUNCTIONS
■Auto Restart Control
AUTOMATIC OPERATION
The device will automatically determine the mode of operation, HEAT, COOL, or DEHUMIDIFY, depending
on the initial room temperature. The selected mode of operation will change when the room temperature
varies.However, the mode of operation will not change when indoor unit connected to multi type outdoor unit.
•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.
Press the (FAN SPEED) button, AUTO and LOW is available.
Press the (START/STOP) button.
Operation starts with a beep.
Press the button again to stop operation.
■As the settings are stored in memory in the remote controller, you only have
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.
1
START
STOP
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.

–8 –
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 -15°C of the outdoor temperature.
Press the FUNCTION selector so that the display indicates
(HEAT).
■As the settings are stored in memory in the remote controller, you only have
to press the (START/STOP) button next time.
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.
(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.
1
3
Press the (START/STOP) button. Heating operation starts with a
beep. Press the button again to stop operation.
2
START
STOP
■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.
However, if it is connected to multi type outdoor unit, the maximum time for defrosting is 15 minutes.
(If the piping length used is longer than usual, frost will likely to form.)

–9 –
ENGLISH
DEUTSCHFRANÇAISITALIANOSPANISHPORTUGUÊS∂ÏÏËÓÈοРУССКИЙ
DEHUMIDIFYING OPERATION
Use the device for dehumidifying when the room temperature is over 16°C.
When it is under 15°C, the dehumidifying function will not work.
■When you want to change the operation mode, please use the FUNCTION
selector.
■Set the desired temperature is available.
■You also can use the FUNCTION selector to select this operation.
Press the FUNCTION selector so that the display indicates
(DEHUMIDIFY).
The FAN SPEED is set at LOW automatically.
The FAN SPEED button does not work.
Press the (START/STOP) button.
1
START
STOP
•Dehumidifying takes place with a target temperature which is slightly lower than the room temperature
setting. (However, target temperature is 16°C for a temperature setting of 16°C.)
If the room temperature becomes lower than the target value, operation stops. If the room temperature
becomes higher than the target value, operation restarts.
•The preset room temperature may not be reached depending on the number of people present in the room
or other room conditions.
■ Dehumidifying Function

–10 –
Press the FUNCTION selector so that the display indicates
(COOL).
■As the settings are stored in memory in the remote controller, you only have
to press the (START/STOP) button next time.
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
automatically when the preset temperature has
been reached.
(HI) : Economical as the room will become cool quickly.
(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. Cooling operation starts with a
beep. Press the button again to stop operation.The cooling function
does not start if the temperature setting is higher than the current
room temperature (even though the (OPERATION) lamp lights).
The cooling function will start as soon as you set the temperature
below the current room temperature.
COOLING OPERATION
Use the device for cooling when the outdoor temperature is –10~42°C. (Only RAM-80QH5: 10~42°C)
If humidity is very high (over 80%) indoors, some dew may form on the air outlet grille of the indoor unit.
1
2
3
START
STOP