Hitachi RAC-10WECI, Service Manual

Page: 7 / 113

Figure showing the installation of lndoor and Outdoor unit
above
50mm
above 50mm
above 50mm
m
m
0
0
3 t
u
o
b
a
m5
4.0
tu
ob
a
d
n
e
b t
o
n t
s
u
m
The indoor piping should be
insulated with the enclosed
insulation pipe. (If the insulator is
insufficient, please use commercial
products.)
s The refrigerating machine oil is
easily affected by moisture. Use
caution to prevent water from
entering the cycle.
s
The difference in height between
the indoor and outdoor unit
should be kept below 10m.
s
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)
Be sure to
completely
seal any gap
with putty.
2,300 mm or more
The clearances of the
unit from top, left, right
and front are specified
in figure below. At least
three of the above sides
must be open air.
Maximum pipe length 20m Minimum pipe length 3m
50mm
give clear
as wide a
possible
200mm
above 200mm
above 100mm
300mm
Plug (Procure locally)
above
above
above
MODEL RAK-18PEC/RAC-18WEC
RAK-25PEC/RAC-25WEC
RAK-35PEC/RAC-35WEC
RAK-25PECC/RAC-25WEC
RAK-35PECC/RAC-35WEC
RAK-10PECI/RAC-10WECI
RAK-14PECI/RAC-14WECI