THE INDOOR UNIT INSTALLATION
ENGLISH
15
- 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 32 mm(1-1/4 inch).
- 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
300 mm(11-13/16 inch) from the unit.
- 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
indoor unit without any leakage.
Drain test
Piping material: Polyvinyl chloride pipe VP-25
and pipe fittings
Heat insulation material: Polyethylene foam
with thickness more than 8 mm(5/16 inch).
Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor 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)
Indoor Unit Drain Piping
Summary of Contents for Art Cool LA240HSV
Page 29: ......
