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•Incline the drain piping to the outside (drain side) as shown in the figure below.
•The outlet of the indoor unit drain pipe is Rc1.
•After completion of piping, confirm that drainage is good and that there are no leaks.
Indoor unit drain piping
Install thermal insulation
to prevent dew
The drain piping should have a drain trap.
B
A
C
The drain pipe
should extend
below this level.
Drain piping
Slope
20mm/m
Open drainDrain trap
A 70mm
B 2×C 70mm
C 35mm
Drain pan
>
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>
=
>
=
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Drain piping
5.