Hitachi RAC-18WPE Service Manual page 7

Figure showing the installation of Outdoor unit
MODEL RAC-18WPE
RAC-25WPE
RAC-35WPE
above 50 mm when
installed on the
ceiling of balcony
above 100mm
above 300mm
above 200mm
above 50mm
give clearance
as wide as
possible
above
200mm
7
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 (commercia l
product)