Hitachi RAS-50WX8 Service Manual page 12

NAMES AND FUNCTIONS OF EACH PART
INDOOR UNIT
Moveable Panel
It will open up automatically when the air conditioner is in operation to allow a large quantity of air
flowing through as a sort of heat exchange; and it will close up automatically when the air conditioner
stopped operating. Avoid physical adjustments as it may damage the panels' mechanisms.
Please do not touch the moving panels during operations as they may pinch your fingers.
OUTDOOR UNIT
NOTE
Air cleansing filters are washable and can be use in 1 year time. Type number for this air cleansing
filter is <SPX-CFH20>. Please use this number for ordering when you want to renew it.
Air cleansing filter should be cleaned every month or sooner if noticeable loading occurs. When
used overtime, it may loose its deodorizing function. For maximum performance, it is recommended
to replace it every 1 year depending on application requirements.
MODEL NAME AND DIMENSIONS
MODEL
RAS-50WX8(W) / RAS-50WX8(B)
RAS-D18EX3(W) / RAS-D18EX3(B)
RAC-50WX8 / RAC-D18EX3
Electrical Dust Collector
Negative ions are generated to capture all air-borne
dirt and dust particle.
Air cleansing filter
(Refer Instruction manual)
Air filter
To prevent dust from coming into the indoor unit.
(Refer Instruction manual)
Front panel
Moveable panel
It will be on when the air conditioner is operated and
off when the air conditioner is not in operation.
(Occasionally it may not be on during the operating
mode)
Horizontal deflector Vertical deflector
(Air Outlet)
(Refer Instruction manual)
Indoor unit indicators
Light indicator showing the operating condition.
(Refer page 3)
Remote controller
Send out operation signal to the indoor unit. So as
to operate the whole unit.
(Refer Instruction manual)
Drain pipe
Condensed water drain to outside.
Connecting cord and insulation pipe for piping
Air inlet (Back and Left side)
Air outlet
WIDTH (mm) HEIGHT (mm) DEPTH (mm)
795 295 198
600 650 299
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INDOOR UNIT INDICATORS
OPERATION INDICATOR
1. Opening up the front panel
Moveable panel
Front panel
Hand grip point
Lift the front panel
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.
CAUTION
Never try to force open/close the moveable panel manually.
Manually opening or closing the moveable panel may cause breakdowns (The moveable panel will
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.
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.
TEMPORARY
SWITCH
Hand grip point
Do not hold the moveable panel
when the front panel is in either
opened/closed position.
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