10
INSTALLATION OF INDOOR
ENGLISH
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
- 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.
- When the test is complete, connect the flexi-
ble drain hose to the drain port on the indoor
unit.
1
Remove the Air Filter.
2
Check the drainage.
- Spray one or two glasses of water upon
the evaporator.
- Ensure that water flows drain hose of in-
door unit without any leakage.
Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor unit
Feed water
Flexible drain hose
(accessory)
Main
drain pipe
Glue the joint
Summary of Contents for ABNQ18GHLA0
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