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INSTALLATION OF DECORATIVE PANEL(ACCESSORY)
22
Indoor Unit Drain Piping
- Drain piping must have down-slope (1/50 to
1/100): be sure not to provide up-and-down
slope to prevent reversal flow.
- During drain piping connection, be careful
not to exert extra force on the drain port on
the indoor unit.
- The outside diameter of the drain connection
on the indoor unit is 32mm.
Piping material: Polyvinyl chloride pipe VP-
25 and pipe fittings
- Be sure to execute heat insulation on the
drain piping.
Pipe clamp
Indoor unit
Maintenance
drain port
Heat insulation material: Polyethylene
foam with thickness more than 8 mm.
Drain test
The air conditioner uses a drain pump to drain
water.
Use the following procedure to test the drain
pump operation:
- Connect the main drain pipe to the exterior
and leave it provisionally until the test comes
to an end.
- Feed water to the flexible drain hose and
check the piping for leakage.
- Be sure to check the drain pump for normal
operating and noise when electrical wiring is
complete.
- When the test is complete, connect the flexi-
ble drain hose to the drain port on the indoor
unit.
Upward
Feed water
routing
not allowed
Drain Pump
!
The supplied flexible drain hose should not
be curved, neither screwed. The curved or
1/50~1/100
screwed hose may cause a leakage of
water.
Max 700mm
HEAT INSULATION
- Use the heat insulation material for the
refrigerant piping which has an excellent
heat-resistance (over 120°C).
Flexible drain hose
(accessory)
Drain
port
Drain hose connection
Use the clip (accessory)
Drain pan
CAUTION
Hanger
distance
Max 300mm
Metal
clamp
Flexible drain hose
Insulation
Main
drain pipe
Glue the joint
Hanger bracket
1~15m
1/50~1/100 slope
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