15
Installation Guideline
• Connect the drain hose, as described below.
The drain hose should
be inclined downward.
No trap is permitted.
Do not put the end
of the hose in water.
• Water Drainage
End
dipped
into
water
Water
leaking
Water
leaking
Water
leaking
Wrong Wrong Wrong
Drain
Water
retention
Correct
• Remove the air filters and pour some water into
the drain pan to check the water flows smoothly.
• When drain hose requires extension, obtain
an extension hose commercially available.
Be sure to thermally insulate the indoor section
of the extension hose.
φ16
Extension drain hose
Indoor unit
drain hose
Heat insulation tube (Field supply)
• When connecting a rigid polyvinyl chloride pipe
(inner diameter 16mm) directly to the drain hose
attached to the indoor unit as with embedded
piping work, use any commercially available drain
socket (inner diameter 16mm) as a joint.
φ16
Drain hose supplied
with the indoor unit
socket (inner
diameter 16mm)
polyvinyl pipe
(diameter 16mm)
4. Drain Piping