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Hitachi RAK-25NH4 - Direction of Piping; Installation of Indoor and Outdoor Unit; The Length of Indoor Unit Power Cord

Hitachi RAK-25NH4
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above 50mm
above 100mm
about
0.45m
about 300mm
must not bend
above 100mm
2,300mm or more
Plug
Maximum pipe length 20m
Minimum pipe length 5m
above 200mm
above 700mm
above 200mm
above 50mm when
installed on the
ceiling of balcony
(
)
above 100mm
above 100mm
give clearance as
wide as possible
– 5a –
The installation height of indoor unit must be
2.3m or more in a non public area.
!
CAUTION
Figure showing the Installation of Indoor and Outdoor unit.
The Length of Indoor Unit
Power Cord
The connection of insulated
drain hose.
Please use insulated drain
hose for the indoor piping
(commercial product).
Direction of Piping
about 1.6m
about
0.9m
The difference in height
between the indoor and
outdoor unit should be
kept below 5m.
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).
Connection
Horizontally
perpendicular
to the unit
There are 4 directions allowed,
namely,horizontally perpendicular
to the unit, vertically down from
right, horizontally out from right
and horizontally out to left.
Don't form the piping downward
at the left of the unit.
Be sure to
completely
seal any
gap with
putty.
Do not alter the power cord.
The indoor piping should be
insulated with the enclosed
insulation pipe. (If the
insulator is insufficient,
please use commersial
products)

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