Indoor Unit Drain Piping; Drain Test - LG LC340CP Manual De Instrucciones

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Indoor Unit Drain Piping

CAUTION: Install certainly the decorative panel.
Cool air leakage causes sweating.
Good example
Fit the insulator (this part) and
be careful for cool air leakage
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.
• Install the drain raising pipes at a right
angle to the indoor unit and no more than
300mm from the unit.
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:
Feed water
Drain Pump
Drain pan
16 Cassette type Air Conditioner
All manuals and user guides at all-guides.com
Air conditioner
unit
Ceiling
board
Decorative panel
Flexible drain hose
• Connect the main drain pipe to the exterior and leave
(accessory)
it provisionally until the test comes to an end.
Main
• Feed water to the flexible drain hose and check the
drain pipe
piping for leakage.
Drain
• Be sure to check the drain pump for normal
port
Glue the joint
operating and noise when electrical wiring is
Drain hose connection
Use the clip (accessory)
complete.
• When the test is complete, connect the flexible drain
hose to the drain port on the indoor unit.
Water drops fall.
Bad example
Pipe clamp
Indoor unit
Maintenance
drain port
Clamp metal(attached)
Air conditioner unit
Air
Cool air leakage
(no good)
Ceiling
board
Decorative
panel
Upward
routing
not allowed
300mm or less
1 -1.5m
Drain raising pipe
Drain hose(attached)
Flexible drain hose
Flexible drain hose
Flexible drain hose

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