Hitachi RAC-50WPA User manual

SPLIT TYPE AIR CONDITIONER
INDOOR UNIT/OUTDOOR UNIT
RAK-50PPA
OUTDOOR UNIT
INDOOR UNIT
MODEL
RAC-50WPA
RAK-50PPA / RAC-50WPA
UM RAK-50PPARAC-50WPA_8 languages.indb 12012/11/22 下午 11:37:30

– 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 “
!
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. The sign in the Þgure indicates prohibition.
Indicates the instructions that must be followed.
● Please keep this manual after reading.
PRECAUTIONS DURING OPERATION
● Avoid an extended period of direct air ßow for your health.
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● Do not insert a Þnger, 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.
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 Þre 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 Þre.
●Please contact your agent if you need to remove and reinstall the unit. Electric shock or Þre
may occur if you remove and reinstall the unit yourself improperly.
●If the supply cord is damaged, it must be replaced by the special cord obtainable at
authorized service/parts centers.
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●During thunder storm, disconnect and turn off the circuit breaker.
WARNING
PRECAUTIONS DURING INSTALLATION
●Do not reconstruct the unit.
Water leakage, fault, short circuit or Þre may occur if you reconstruct the unit by yourself.
●Please ask your sales agent or qualiÞed technician for the installation of your unit. Water
leakage, short circuit or Þre 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 speciÞed 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 near location where there is ßammable gas. The outdoor unit may catch
Þre if ßammable gas leaks around it.
●Please ensure smooth ßow of water when installing the drain hose.
●Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its
mist ßows to the indoor unit. The oil will deposit on the heat exchanger, thereby reducing
the indoor unit performance and may deform and in the worst case, break the plastic
parts of the indoor unit.
CAUTION
●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.
!
!
!
!
UM RAK-50PPARAC-50WPA_8 languages.indb 22012/11/22 下午 11:37:36

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ENGLISH
PRECAUTIONS DURING OPERATION
●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 insufÞciency.
●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.
●Do not use any aerosol or hair sprays near the indoor unit. This chemical
can adhere on heat exchanger Þn and blocked the evaporation water ßow
to drain pan. The water will drop on tangential fan and cause water splashing
out from indoor unit.
●Please ensure that outdoor mounting frame is always stable, Þrm 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.
●When operating the unit with the door and windows opened, (the room humidity is always above
80%) and with the air deßector facing down or moving automatically for a long period of time,
water will condense on the air deßector 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 inÞrm 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.
●Do not climb on the outdoor unit or put objects on it.
●Please switch off the unit 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 to be operated for a long period.
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●The product shall be operated under the manufacturer speciÞcation and
not for any other intended use.
●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 ßow as it is bad for the plants.
!
UM RAK-50PPARAC-50WPA_8 languages.indb 32012/11/22 下午 11:37:37

– 4 –
INDOOR UNIT
NAMES AND FUNCTIONS OF EACH PART
Pre-Þlter
To prevent dust from coming into the indoor unit.
(Refer page 10)
Front panel
Indoor unit indicators
Light indicator showing the operating condition.
(Refer page 5)
Horizontal deßector ●Vertical deßector
(Air Outlet)
Remote controller
Send out operation signal to the indoor unit. So as
to operate the whole unit.
(Refer Remote control manual)
MODEL NAME AND DIMENSIONS
OUTDOOR UNIT
DRAIN PIPE
Condensed water drain to outside.
CONNECTING CORD
AIR INLET (BACK, LEFT SIDE)
AIR OUTLET
●Air purifying Þlters are not washable. It is recommended to use vacuum to clean it. It can be use
for 1 year time. Type number for this air purifying Þlter is <SPX-CFH22>. Please use this number
for ordering when you want to replace it.
NOTE
MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm)
RAK-50PPA 790 300 230
RAC-50WPA 850 650 298
UM RAK-50PPARAC-50WPA_8 languages.indb 42012/11/22 下午 11:37:37

– 5 –
ENGLISH
INDOOR UNIT INDICATORS
OPERATION INDICATOR
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 Þlter. The lamp goes out when the “
(AUTO SWING)” button is pressed while the device is on
“STANDBY MODE”.
OPERATION LAMP
This lamp lights during operation.
The OPERATION LAMP ßashes 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.
TIMER LAMP
This lamp lights when the timer is working.
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 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.
UM RAK-50PPARAC-50WPA_8 languages.indb 52012/11/22 下午 11:37:38

– 6 –
Note
●The recommended temperature range for safety testing should be as below:
Cooling Heating
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
CIRCUIT BREAKER
When you do not use the room air conditioner, set the circuit breaker to “OFF”.
UM RAK-50PPARAC-50WPA_8 languages.indb 62012/11/22 下午 11:37:38

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ENGLISH
Suitable Room Temperature Install curtain or blinds
Ventilation Effective Usage Of Timer
Do Not Forget To Clean The Pre-Þlter Please Adjust Suitable Temperature
For Baby And Children
!Warning
Freezing temperature
is bad for health and a
waste of electric power.
It is possible
to reduce
heat entering
the room
through
windows.
At night, please use the “OFF or ON timer
operation mode”, together with your wake
up time in the morning. This will enable you
to enjoy a comfortable room temperature.
Please use the timer effectively.
Dusty pre-Þlter will reduce the air volume
and the cooling efÞciency. To prevent from
wasting electric energy, please clean the
Þlter every 2 weeks.
Please pay attention to the room temperature
and air ßow direction when operating the unit
for baby, children and old folks who have
difÞculty in movement.
!Caution
Do not close the room for a long period
of time. Occasionally open the door and
windows
to allow the
entrance of
fresh air.
THE IDEAL WAYS OF OPERATION
UM RAK-50PPARAC-50WPA_8 languages.indb 72012/11/22 下午 11:37:39

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FOR USER’S INFORMATION
The Air Conditioner And The Heat Source In The Room
Not Operating For A Long Time
When Lightning Occurs
!Caution
If the amount of heat in the room is above the
cooling capability of the air conditioner (for
example: more people entering the room, using
heating equipments and etc.), the preset room
temperature cannot be achieved.
When the indoor unit is not to be used for a long
period of time, please switch off the power from the
mains. If the power from mains remains “ON”, the
indoor unit still consumes about 8W in the operation
control circuit even if it is in “OFF” mode.
Warning
To protect the whole unit during lightning, please
stop operating the unit and remove the plug from
the socket.
Interference From Electrical Products
Caution
To avoid noise interference, please place the
indoor unit and its remote controller at least 1m
away from electrical products.
TV
Inverter-type
ßuorescent
lamp.
To prevent
interference,
place at least
1m away.
!
!
OFF
UM RAK-50PPARAC-50WPA_8 languages.indb 82012/11/22 下午 11:37:39

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ENGLISH
ATTACHING THE AIR PURIFYING FILTERS
1Open the front panel
●Pull up the front panel by holding it at both sides with
both hands.
2Remove the Pre-Þlter
●Push upward to release the claws and pull out the
Pre-Þlter.
3Attaching the air purifying Þlters
●Attach the air purifying Þlters to the frame by gently
compress its both sides and release after insertion
into Pre-Þlter frame.
4Attach the Pre-Þlters
●Attach the Pre-Þlters by ensuring that the surface
written “FRONT” is facing front.
●After attaching the Pre-Þlters, push the front panel at
three arrow portions as shown in Þgure and close it.
Cleaning and maintenance must be carried out when Þlter lamp lights. Before cleaning, stop operation
and switch off the power supply.
CAUTION
CAUTION
Do not bend the air purifying
Þlter as it may cause damage
to the structure.
Please do not smell direct from
source of Þlter.
NOTE
●In case of removing the air purifying Þlters, please follow the above procedures.
●The cooling capacity is slightly weakened and the cooling speed becomes slower when the air purifying
Þlters are used. So, set the fan speed to "HIGH" when using it in this condition.
●Air purifying Þlters are not washable. It is recommended to use vacuum to clean it. It can be use for 1
year time. Type number for this air purifying Þlter is <SPX-CFH22>. Please use this number for ordering
when you want to renew it.
●Do not operate the air conditioner without Pre-Þlter. Dust may enter the air conditioner and fault may
occur.
!
!
UM RAK-50PPARAC-50WPA_8 languages.indb 92012/11/22 下午 11:37:39

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MAINTENANCE
Cleaning and maintenance must be carried out when Þlter lamp lights. Before cleaning, stop operation and
switch off the power supply.
1. PRE-FILTER
Clean the Pre-Þlter, as it removes dust inside the room. In case the Pre-Þlter is full of dust, the air ßow
will decrease and the cooling capacity will be reduced. Further, noise may occur. Be sure to clean the
Pre-Þlter following the procedure below.
CAUTION
1Open the front panel and remove the Pre-Þlter
●Gently lift and remove the air purifying Þlters
from the air purifying Þlter frame.
2Vacuum dust from the Pre-Þlter and air purifying
Þlter using vacuum cleaner. If there is too much
dust, rinse under running tap water and gently
brush it with soft bristle brush. Allow Þlters to dry
in shade.
3●Re-insert the air purifying Þlter to the Þlter frame.
Set the Pre-Þlter with “FRONT” mark facing front,
and slot them into the original state.
●After attaching the Pre-Þlters, push the front
panel at three arrow portions as shown in
Þgure and close it.
CAUTION
●Do not wash with hot water at more than 40°C. The pre-Þlter may shrink.
●When washing it, shake off moisture completely and dry it in the shade; do not expose it directly to the
sun. The pre-Þlter may shrink.
PROCEDURE
!
!
UM RAK-50PPARAC-50WPA_8 languages.indb 102012/11/22 下午 11:37:42

– 11 –
ENGLISH
2. Washable Front Panel
●Remove the front panel and wash with clean water.
Wash it with a soft sponge.
After using neutral detergent, wash thoroughly with
clean water.
●When front panel is not removed, wipe it with a soft
dry cloth. Wipe the remote controller thoroughly with
a soft dry cloth.
●Wipe the water thoroughly.
If water remains at indicators or signal receiver of
indoor unit, it causes trouble.
Method of removing the front panel.
Be sure to hold the front panel with both hands to
detach and attach it.
!
CAUTION
●Do not splash or direct water to the body of the unit when cleaning it as
this may cause short circuit.
●Never use hot water (above 40°C), benzine, gasoline, acid, thinner or
a brush, because they will damage the plastic surface and the coating.
Removing the Front Panel
●When the front panel is fully opened with both
hands, push the right arm to the outside to
release it, and while closing the front panel
slightly, pull it out forward.
Attaching the Front Panel
●Move the projections of the left and right arms
into the Flanges in the unit and securely insert
them into the holes.
Projection
Hole
Flange
UM RAK-50PPARAC-50WPA_8 languages.indb 112012/11/22 下午 11:37:43

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REGULAR INSPECTION
PLEASE CHECK THE FOLLOWING POINTS BY QUALIFIED SERVICE PERSONNEL EITHER
EVERY HALF YEARLY OR YEARLY. CONTACT YOUR SALES AGENT OR SERVICE SHOP.
Is the earth line disconnected or broken?
Is the mounting frame seriously affected by rust and is the out-
door unit tilted or unstable?
Is the plug of power line Þrmly plugged into the socket?
(Please ensure no loose contact between them).
Cleaning and maintenance must be carried out only by qualiÞed service personnel. Before cleaning, stop
operation and switch off the power supply.
!CAUTION
3. MAINTENANCE BEFORE LONG OFF PERIOD
● Run the unit by setting the operation mode to (COOL),
the temperature to 32°C and the fan speed to HI for about
half a day on a Þne day, and dry the whole of the unit.
● Switch off the power plug.
Air
Blow
ConÞrm
UM RAK-50PPARAC-50WPA_8 languages.indb 122012/11/22 下午 11:37:45

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ENGLISH
AFTER SALE SERVICE AND WARRANTY
WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS.
When it does not operate
●Is the fuse all right?
●Is the voltage extremely high or low?
●Is the circuit breaker “ON”?
●Is the setting of operation mode different from other indoor units?
●Is the pre-Þlter blocked with dust?
●Does sunlight fall directly on the outdoor unit?
●Is the air ßow of the outdoor unit obstructed?
●Are the doors or windows opened, or is there any source of heat
in the room?
●Is the set temperature suitable?
●Are the air inlets or air outlets of indoor and outdoor units
blocked?
●Is the fan speed “LOW” or “SILENT”?
CONDITION CHECK THE FOLLOWING POINTS
Notes
●In quiet operation or stopping the operation, the following phenomena may
occassionally occur, but they are not abnormal for the operation.
(1) Slight ßowing noise of refrigerant in the refrigerating cycle.
(2) Slight rubbing noise from the fan casing which is cooled and then
gradually warmed as operation stops.
●The odor will possibly be emitted from the room air conditioner because the
various odor, emitted by smoke, foodstuffs, cosmetics and so on, sticks to
it. So the pre-Þlter and the evaporator regularly must be cleaned to reduce
the odor.
●Please contact your sales agent immediately if the air conditioner still fails to operate normally after the above
inspections. Inform your agent of the model of your unit, production number, date of installation. Please also
inform him regarding the fault.
●Power supply shall be connected at the rated voltage, otherwise the unit will be broken or could not reach the
speciÞed capacity.
When it does not cool well
When it does not hot well
If the remote controller is
not transmitting a signal. ●Do the batteries need replacement?
●Is the polarity of the inserted batteries correct?
Remote controller
display is dim or blank.)
NOTE:
●If the supply cord is damaged, it must be replaced by the special cord obtainable at authorized service
parts centers.
●On switching on the equipment, particularly when the room light is dimmed, a slight brightness ßuctuation
may occur. This is of no consequence.
The conditions of the local Power Supply Companies are to be observed.
UM RAK-50PPARAC-50WPA_8 languages.indb 132012/11/22 下午 11:37:45

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MEMO
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UM RAK-50PPARAC-50WPA_8 languages.indb 142012/11/22 下午 11:37:45

– 15 –
SPLIT-KLIMAANLAGE
INNENGERÄT/AUSSENGERÄT
RAK-50PPA
AUSSENGERÄT
INNENGERÄT
MODELL
RAC-50WPA
RAK-50PPA / RAC-50WPA
UM RAK-50PPARAC-50WPA_8 languages.indb 152012/11/22 下午 11:37:45