Hitachi RAF-25RXB User manual

INDOOR UNIT
MODEL
RAF-25RXB
RAF-35RXB
RAF-50RXB
RAF-25RXB
RAF-35RXB
RAF-50RXB
SPLIT TYPE AIR CONDITIONER
INDOOR UNIT
Instruction manual Page 1~
To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely.
21~1
This room air conditioner is only for consumer usage.
Do not use for preservation of foods, animals, plants, precision machines, art, medicine or such.
ENGLISH
DEUTSCH
FRANÇAIS
ITALIANO
ESPAÑOL
PORTUGUÊS
Ελληνικά
SVENSKA
NEDERLANDS
SUOMI

– 2 –
•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.)
PRECAUTIONS DURING OPERATION
WARNING
WARNING
SAFETY PRECAUTION
•Do not reconstruct the unit. ybtinuehttcurtsnoceruoyfiruccoyamerifrotiucrictrohs,tluaf,egakaelretaWyourself.
•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 or fire.
•nitluseryamsiht,esiwrehtO.A014RroftesgnipipdeificepsehtesuoteruseBbroken 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.
•
•.esohniardehtgnillatsninehwretawfowolfhtoomserusneesaelP
•Make sure that a single phase power source is used.
The use of other power sources may cause electrical components to overheat
.erifotdaeldna
PRECAUTIONS DURING INSTALLATION
PROHIBITION
CONNECT EARTH LINE
PROHIBITION
WARNING
CAUTION
•
•
•Please contact your agent for maintenance. Improper self maintenance may cause electric
.erifdnakcohs
•erifrokcohscirtcelE.tinuehtllatsnierdnaevomerotdeenuoyfitnegaruoytcatnocesaelPmay occur if you remove and reinstall the unit yourself improperly.
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
•Do not use any conductor as fuse wire, this could cause fatal accident.
•During thunder storm, disconnect the plug top and turn off the circuit
breaker.
•Do not put objects like thin rods into the panel of blower and suction side
because the high-speed fan inside may cause danger.
•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
PROHIBITION
“OFF”
“OFF”
PROHIBITION
Avoid an extended period of direct airflow for your health.
220V-230V
Please keep this manual after reading.
Make sure to connect earth line.
Indicates the instructions that must be followed.
This sign in the figure indicates prohibition.
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.
Should abnormal situation arise (like burning smell), please stop operating the
unit and turn off the circuit breaker. Contact your
fire may occur if you continue to operate the unit under abnormal situation.
agent. Fault, short circuit or

– 3 –
DEUTSCHSIAÇNARFONAILATIHSINAPSSÊUGUTROPЙИКССУР
ENGLISH
•.stnalpehtrofdabsitisawolfriaehtrednuyltceridstnalpecalptonoD
•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.
•tondnanoitacificepsrerutcafunamehtrednudetarepoebllahstcudorpehTfor any other intended use.
PRECAUTIONS DURING OPERATION
CAUTION
•Do not attempt to operate the unit with wet hands, this could cause fatal
accident.
•When operating the unit with burning equipments, regularly ventilate
.ycneiciffusninegyxodiovaotmooreht
•tuohtiwdnamrif,elbatssyawlasiemarfgnitnuomroodtuotahterusneesaelPdefect. 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.
•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.
•Turn off the circuit breaker if the unit is not be operated for a long period.
•Do not climb on the outdoor unit or put objects on it.
•When operating the unit with the door and windows opened, (the room
gnivomronwodgnicafrotcelfedriaehthtiwdna)%08evobasyawlasiytidimuh
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.
•Indoor unit cleaning must be performed by authorized personnel only. Consult
This appliance is not to be used by children or persons with reduced physical, sensory or mental
instruction. Children must be supervised not to play with the appliance.
your sales agent.
capabilities, or lack of experience and knowledge, unless they have been given supervision or
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.
•roodtuoehtfonifmuinimuladnaecafrusmottob,teltuoriaehthcuottonoDunit.
You may get hurt.
Do not touch the refrigerant pipe and connecting valve.
Burns may result.
PROHIBITION
DON’T WET
PROHIBITION
PROHIBITION
PROHIBITION
DON’T TOUCH
“OFF”
PROHIBITION
PROHIBITION
PROHIBITION
PROHIBITION
PROHIBITION
DON’T TOUCH
STRICTLY OBSERVE
PRECAUTIONS
“OFF”
•
•
•

– 4 –
OPERATING RANGE
Operation mode Cooling / Dehumidifying Heating
Outdoor temperature
- 10 to 43°C - 15 to 21°C
Remote controller
Send outoperation signal to the indoor unit.
So as to operate the whole unit.
(Refer Remote control manual)
Indoor unit indicators
Horizontal air deflector (Air intake)
(Opens during operation and it closes
when it stops operation.)
Air filter
Front panel
Horizontal air
deflector (Air outlet)
Signal receiver
HTPEDTHGIEHHTDIWLEDOM
RAF-25RXB, RAF-35RXB, RAF-50RXB 750mm (29-17/32") 590mm (23-6/25") 215mm (8-15/32")
MODEL NAME AND DIMENSIONS
NAMES AND FUNCTIONS OF EACH PART
INDOOR UNIT
CAUTION
Do not put anything in front
of the signal receiver. Or
else, it may not receive the
signal properly.
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.
NOTE FOR MULTI SYSTEM
Several indoor units can be connected to one outdoor unit.
You can operate only one unit or several units according to your needs.
Combination of operations:
the following combinations.
You cannot operate the indoor units in
One unit Other unit
Heating Dehumidifying
Fan
Cooling
Other indoor units which are turned on later go into standby
The indoor unit which is turned on first continues to operate.
To operate the indoor units turned on later, set the operation
mode and the operation lamp lights.
mode as same as the indoor unit turned on first.
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 –
HSILGNE
DEUTSCHSIAÇNARFONAILATIHSINAPSSÊUGUTROPЙИКССУР
Open the front panel
•To open the front panel, use the remote controller to stop unit
operation. Then press at the top left and right corners of the front
panel.
•Grasp the left and right sides of the front panel and open it toward
you.
Close the front panel
•To close the front panel, press at the top left and right corners of the
front panel.
•Press the upper center part of the front panel to close properly.
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.)
TEMPORARY SWITCH
Top left and right corners
TEMPORARY SWITCH
TEMPORARY SWITCH
•
•
Upper center part
INDOOR UNIT INDICATORS
HOW TO OPEN OR CLOSE THE FRONT PANEL
FILTER lamp
This lamp lights when the
device is operated for a total
of about 200 hours, it is time
to clean the filter. The lamp
goes out when the “
(AUTO
SWING)” button is pressed
while the operation is stopped.
Use this switch to start and stop when the remote
controller does not work.
By pressing the temporary switch, the operation
is done in automatic 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.
ENGLISH

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DEUTSCHSIAÇNARFONAILATIHSINAPSSÊUGUTROP
ЙИКССУР
ADJUSTING THE AIR DEFLECTORS
Adjustment of the conditioned air in the upward
and downward directions.
The horizontal air deflector is automatically set to
the proper angle suitable for each operation. The
deflectorcanbeswungupand downcontinuously
and also set to the desired angle using the “
(AUTO SWING)” button.
1
If the “ (AUTO SWING)” button is
pressed once, the horizontal air deflector
swings up and down. If the button is
pressed again, the deflector stops in its
current position.
Use the horizontal air deflector within
the adjusting range shown in the right
figure.
When the “ (AUTO SWING)” button is
pressed while the operation is stopped,
the horizontal air deflector moves and
stops at the position where the air outlet
closes.
When the auto swing operation is
performed, if the horizontal air deflector
is moved manually, the swinging range
may drift. However, it will return to the
original operation range after a short
time.
When the humid in the room is high
during cooling or dehumidifying
operation, the horizontal air deflector
may automatically change to the straight
direction to prevent dew (except during
auto swing operation).
Vertical
When
heating,
about 20°
When cooling,
dehumidifying
about 50°
about
70°
Vertical air deflector
EXTENDED AIRFLOW
(Heating)
EXTENDED AIRFLOW
(Cooling, dehumidifying)
Fora certain period of time(about
30 minutes) after starting the cooling
operation, it operates to coolthe room
quickly. During this operation, if the
horizontal air deflector is adjusted to your
preferred angle by “ (AUTO SWING)”
button, it returns to the proper angle
automatically after a certain period of time.
In this case, press “ (AUTO SWING)”
button to adjust the deflector to your
preferred angle again.

– 7 –
CIRCUIT BREAKER
When you do not use the room air conditioner, set the circuit breaker to “OFF”.
HOW TO USE THE AIR CONDITIONER EFFECTIVELY
1. An average room temperature setting is probably the best for you as well as being
economical.
bills may also result.
Excessive cooling or heating is not recommended for health reasons. High electricity
well as to make more effective use of electricity.
Close the curtains or blinds to prevent heat from flowing into or escaping the room as
2. At intervals, the doors and windows should be opened to let fresh air in.
CAUTION Make sure the room is ventilated when operating the air conditioner
at the same time as other heating appliances.
3. Using the timer is recommended before going to sleep or going out.
4. The following must never be used for cleaning the indoor and outdoor units:
5. Do not block the air intake and air outlet.
or other obstacles which could degrade air conditioner performance and cause unit
Do not block the air outlets and intakes of the indoor and outdoor units with curtains
Benzine, thinner and scrub can damage plastic surfaces or coating.
Hot water above 40°C can shrink the filter and deform plastic parts.
failure.
Adjustment of the conditioned air to the left and
right.
Hold the vertical air deflector as shown in the
figure and adjust the conditioned air to the left
and right.
2
CAUTION
When operating the unit in cooling operation with the air deflector facing down and moving
for a long period of time, water will be condensed on the air deflector and drips down occasionally.
will wet your furniture.
Vertical air deflector
ENGLISH

– 8 –
DEUTSCHSIAÇNARFONAILATIHSINAPS
1. AIR FILTER
Clean the air filter, as it removes dust inside the room.
Be sure to clean the filter once every two weeks so as not to consume electricity unnecessarily.
PROCEDURE
MAINTENANCE
Open the front panel.
operation. Then press at the top left and right corners of the front
To open the front panel, use the remote controller to stop unit
Grasp the left and right sides of the front panel and open it toward you.
panel.
1
WARNING
Remove the filters.
(Front side 2 pieces, upper side 2 pieces, total 4 pieces.)
2
Remove dust of the filters using a vacuum cleaner.
shade.
After using neutral detergent, wash with clean water and dry in
Attaching the filters.
3
Attach the filters.
(Front side 2 pieces, upper side 2 pieces, total 4 pieces.)
4
CAUTION
The filter may shrink. And also use a soft sponge to wash. Using a scrubber or brush cause the metal film
Don’t operate the unit without filter. Fault may occur if you continue.
Do not wash with hot water at more than 40°C. The filter may shrink.
When washing it, shake off moisture completely and dry it in the shade; do not expose it directly to the sun.
on the surface to come off.
Close the front panel.
front panel.
To close the front panel, press at the top left and right corners of the
Press the upper center part of the front panel to close properly.
5
CAUTION
Do not expose the unit to water as it may cause an electric shock.
For cleaning inside the air conditioner, consult your sales agent.
Avoid using detergent when cleaning the heat exchanger of the indoor unit. Unit failure may result.
Before cleaning, stop unit operation with the remote controller and turn off the circuit breaker.
hands on the heat exchanger fins.
When cleaning the heat exchanger with a vacuum cleaner, make sure to wear gloves so as not to injure your
Upper side filter
Front side filter

– 9 –
Removing
Press the hook found at the tip of the resin band
installed inside the front panel’s right section to
remove the resin band.
2. HOW TO INSTALL AND REMOVE THE FRONT PANEL
4. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD
dry and prevent mold formation.
Activating air conditioner drying will keep the interior of the indoor unit
Turn off the circuit breaker.
Pull the front panel down toward you and once
fully open, pull it to remove.
Attach three front panel bearings to the axis of
the front cover. (Set the hook to face up.)
Insert the tip of the resin band into the hole of the
protrusion inside the right section of the front
panel.
3. CLEANING OF FRONT PANEL
The front panel can be washed in water. It can be kept clean at all times.
front panel using a soft sponge.
Front panel can be removed and washed in water. Gently clean the
Be sure to use both hands to grasp the front panel when removing it or attaching it.
The front panel may be installed up or down to suit user preference.
panel, clean both the body and remote controller with a dry soft cloth.
When the air conditioner is to be cleaned without removing the front
light receiver section, this could cause a malfunction.
Wipe off water completely. If water remains on the display section or
CAUTION
cause short circuit.
Do not splash or direct water to the body of the unit when cleaning it as this may
brush, because it will damage the plastic surface and the coating.
Never clean with hot water (above 40°C), benzine, gasoline, acid, thinner or a
Resin band
Air blow
B
E
N
Z
I
N
E
T
H
I
N
N
E
R
A
C
I
D
Hook
Front cover
Front panel
Resin band
Attaching
12
21
ENGLISH

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HCSTUEDSPANISH ITALIANO FRANÇAIS
5. AIR PURIFYING FILTER
When installing the air purifying filters, remove the air filters and attach them
onto the hooks of the front cover frame.
The cooling capacity is slightly weakened and the cooling speed becomes
slower when the air purifying filter is used. So, set the fan speed to “HIGH”
when using it in this condition.
The air purifying filter is not washable. It is recommended to use vacuum
to clean. It can be used for 1 year.
When you want to renew it, please ask your sales agent.
Air purifying filter
Heating Capability
This room air conditioner utilizes a heat pump system that absorbs
exterior heat and brings it into a room to be heated. As the ambient
temperature gets lower, heating capability will also lower. In such a
situation, the PAM and inverter work to increase compressor rpm to keep
the unit’s heating capability from decreasing. If the unit’s heating
performance is still unsatisfactory, other heating appliances should be
used to augment this unit’s performance.
The air conditioner is designed to heat an entire room so that it may take some time before you feel warm. Timer
operation is recommended for effective preheating ahead of the desired time.
Cooling and Dehumidifying Capabilities
If the heat present in a room exceeds the unit’s cooling capacity (for example, if there are many people in the room
or other heating appliances are used), the preset room temperature may not be reached.
INFORMATION
CAPABILITIES
CAUTION
Do not use a stove
or any other high-
temperature devices
in proximity to the
indoor unit. PROHIBITION