Hitachi RAF-25RXB Service Manual page 8

Figure showing the installation of lndoor and Outdoor unit
MODEL RAF-25RXB/RAC-25FXB
RAF-35RXB/RAC-35FXB
above 50 mm when
installed on the
ceiling of balcony
above 100mm
above 300mm
Be sure to completely
seal any gap with
putty.
Drain pipe
Must be installed separately.
Insulate indoor part of pipe
to prevent condensation.
above 200mm
(For example:wall instalation)
Above 150mm
Above 200mm
Bush
The indoor piping should be
insulated with the enclosed
insulation pipe. (If the insulator
is insufficient, please use
commercial products.)
above 50mm
give clearance
as wide as
possible
above
200mm
1ー2
Hanger
Above 100mm
Sheet
When mounting on a wall
(up to 150~500 mm from the floor surface)
Plug
The refrigerating machine oil is
easily affected by moisture. Use
caution to prevent water from
entering the cycle.
The difference in height between
the indoor and outdoor unit
should be kept below 10m.
The connecting pipe, no matter
big or small, should all be
insulated with insulation pipe and
then wrapped with vinyl tape.
(The insulator will deteriorate if
it is not wrapped with tape).
The connection of insulated drain
hose.
Inner diameter 16mm
Please use insulated drain hose for
the indoor piping (commercial
product)