Hitachi RAC-25YH4, Service Manual, Page: 10 / 121

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NAMES AND FUNCTIONS OF EACH PART
INDOOR UNIT
Air filter
To prevent dust from coming into the indoor unit.
(Refer page 20)
Front panel
Indoor unit indicators
Light indicator showing the operating condition.
(Refer page 9)
Horizontal deflector Vertical deflector
(Air Outlet)
(Refer page 19)
Remote controller
Send out operation signal to the indoor unit. So as
to operate the whole unit.
(Refer page 10)
MODEL NAME AND DIMENSIONS
OUTDOOR UNIT
Air outlet
When “heating” operation is
performed, cool air blows
and when “cooling” or
“dehumidifying” operation is
performed, warm air blows.
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.
Drain port
(Bottom)
Earth terminal
(Lower section of the side)
MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm)
RAS-25YH4, RAS-35YH4 780 280 205
RAC-25YH4, RAC-35YH4 750 548 288
RAS_25_35_AW_001-024 2003.12.31, 10:43 AM 8