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11
5.
Drain piping
1) Connect the drain hose, as described right.
The drain hose should
be inclined downward.
No trap is permitted.
Do not put the end
of the hose in water.
2) Remove the air filters and pour some water into the drain pan to check the
water flows smoothly.
3) When drain hose requires extension, obtain an extension hose commercially
available.
Be sure to thermally insulate the indoor section of the extension hose.
Indoor unit
drain hose
ϕ
5/8”
(
ϕ
16mm)
Extension drain hose
Heat insulation tube
(field supply)
4) When connecting a rigid polyvinyl chloride pipe
(nominal diameter 1/2 inch (13mm)) directly to
the drain hose attached to the indoor unit as with
embedded piping work, use any commercially
available drain socket (nominal diameter 1/2 inch
(13mm)) as a joint.
Drain hose supplied with
the indoor unit
Commercially available drain
socket
(nominal diameter 1/2 inch
(13mm))
Commercially available rigid
polyvinyl chloride pipe
(nominal diameter 1/2 inch
(13mm))
ϕ
5/8”
(
ϕ
16mm)
01_EN_3P297301-1.indd 11
10/20/2011 2:38:30 PM