Hitachi RAC-25WSE, Service Manual

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Figure showing the installation of lndoor and Outdoor unit
MODEL
Above 50mm
Above 50mm
Be sure to com pletely seal
any gap with putty.
The space indicated by an
arrow is to guarantee
the performance of the
air conditioner. Install the
apparatus at the ample
space in order to carry out
the maintenance and repair
works.
Above 50mm (Above 100mm when there is piping connection at the back of the outdoor unit)
Above 80mm
When installing the indoor unit
above the curtain rail or curtain
box, allow dimensions not
affecting the airflow.
About 300mm
Must not bend
The indoor piping should be
insulated with the enclosed
insulation pipe.
Heating efficiency will be
enhanced if the space below the
outdoor unit is closed so that
no air passes through.
(Procure the material locally.)
The refrigerating machine oil is easily affected
by moisture. Use caution to prevent water from
entering the cycle.
Connection of insulated drain hose
Please use insulated drain hose
for the indoor piping (commer cial
product).
Inner diameter
16mm
• 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.
About 0.45m
For outdoor unit installation, allow at least
2 sides of space around the unit to ensure
ventilation flue.
2.3m or more
Plug
above 200mm
give clearance
as wide as
possible
above 150mm
Maximum pipe length 20m Maximum pipe length 30m Minimum pipe length 3m
(50WSE) (25/35WSE)
above
200mm
above 300mm
above 700mm
RAK-50PSEW/RAC-50WSE
RAK-50PSES/RAC-50WSE
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