Air conditioner
unit
Ceiling
board
Decorative panel
Decorative
panel
Fit the insulator (this part) and
be careful for cool air leakage
Good example
Air
Cool air leakage
(no good)
Bad example
Ceiling
board
Air conditioner unit
Feed water
Drain Pump
Drain pan
Flexible drain hose
(accessory)
Main
drain pipe
Glue the joint
Drain
port
Drain hose connection
Use the clip (accessory)
Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor unit
1/50~1/100
MAX 700mm
1/50~1/100
MAX 700mm
Flexible drain hoseFlexible drain hoseFlexible drain hose
CAUTION:
The supplied flexible
drain
hose should not be curved,
neither
screwed. The curved or screwed
hose
may cause a leakage of water.
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
leakag
e.
• Be sure to check the drain pump for normal operating and
noise
when electrical wiring is complete.
• When the test is complete, connect the flexible drain hose to
the
drain port on the indoor unit.
Heat
insulation material: Polyethylene foam with thickness more than 8 mm.
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.
• Be sure to execute heat insulation on the drain piping.
Drain test
Piping material: Polyvinyl chloride pipe VP-25
and
pipe fittings
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