Installation Manual
15
Installation
ENGLISH
Indoor Unit Drain Piping
Ceiling
1~3 mm
Drainage hole
Front of view
1.
Install declination
of the indoor unit is very
important for the drain
of the duct type air
conditioner.
2. Minimum thickness of the insulation for the connecting pipe shall be 5 mm.
• The unit must be horizontal or declined to the drain hose connected when finished installation.
• 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.
• Be sure to install heat insulation on the drain piping.
Piping material: Polyvinyl chloride pipe
inner diometes Ø 25 mm and pipe fittings
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 leakage.
• Be sure to check the drain pump for normal
operation 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.
Drain test
Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor unit
1/50~1/100
MAX 700 mm
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)
1/50~1/100 slope
Hanger
distance
Hanger Bracket
Max 700 mm
Flexible drain hose
Insulation
Metal
clamp
Max 300 mm
1~15 m
CAUTION
The supplied flexible drain hose should
not be strained. A strained hose may
cause leakage of water.
!
CAUTION
!
Summary of Contents for Multi V Series
Page 27: ......
