18
The indoor unit installation
• Drain piping must have down-slope : 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.
(Ceiling Concealed Duct – High static: 65 mm)
• 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 from the unit.
Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor unit
Piping material: Polyvinyl chloride pipe VP-25
and pipe fittings
Heat insulation material: Polyethylene foam with thickness more than 10 mm.
• 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 flexible drain
hose to the drain port on the indoor unit.
Feed water
Flexible drain hose
(accessory)
Main
drain pipe
Glue the joint
Drain test
CAUTION:
The supplied flexible drain
hose should not be curved, neither
screwed. The curved or screwed hose
may cause a leakage of water.
1/50~1/100 slope
Hanger
distance
Hanger Bracket
Max 7
0
0
mm
Flexible drain hose
Insulation
Metal
clamp
Max 300 mm
1~15 m
Indoor Unit Drain Piping
1,MFL67939921,영영 2018. 8. 2. 영영 1:41 Page 18
Содержание ABNW70GB9A0
Страница 42: ...42 1 MFL67939921 영영 2018 8 2 영영 1 41 Page 42 ...
Страница 43: ...1 MFL67939921 영영 2018 8 2 영영 1 41 Page 250 ...