INSTALLATION
ENGLISH
21
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.
- Be sure to execute heat insulation on the
drain piping.
Air conditioner
unit
Decorative panel
Fit the insulator (this part) and
be careful for cool air leakage
Good example
Ceiling
board
Ceiling
board
Decorative
panel
Air
Cool air leakage
(no good)
Bad example
Air conditioner unit
CAUTION
Install certainly the decorative panel.
Cool air leakage causes sweating.
⇨
Water drops fall.
!
Piping material: Polyvinyl chloride pipe VP-
25 and pipe fittings
Heat insulation material: Polyethylene
foam with thickness more than 8 mm.
Upward
routing
not allowed
1/50~1/100
MAX 800
1000~1500
300 or less
Hanging bar
Unit : mm
Unit : mm
