Indoor Unit - Fujitsu AOU48RLXFZ Design & Technical Manual

8-2.

INDOOR UNIT

GENERAL RULES OF DRAIN PROCESS
● Install the drain pipe with downward gradient (1/100 or more) and so there are no rises in the
pipe.
● Use general hard polyvinyl chloride pipe and connect it with adhesive (polyvinyl chloride) so
that there is no leakage.
● Support the drain pipe with supporters each 5 to 7ft. (1.5 to 2.0m)
● Do not perfrom air bleeding.
● Always heat insulate the indoor side of the drain pipe.
● When connecting the drain hose to the indoor unit, use the accessory band. (Except compact
wall mounted type and wall mounted type)
COMPACT CASSETTE TYPE
11-13/16 (300) or less
PVC pipe
(Local
arrangement)
drain hose
(3/4 inch)
(accessory)
Attached band
Rise
● Drain lift-up pipe restrictions:
(1) Lift-up height ≤ 27-9/16in. (700mm) (from ceiling)
(2) Drain hose (pipe) length ≤ 11-13/16in. (300mm) (between indoor unit and lift-up pipe)
● When a dimensions exceed the above restrictions will cause water leakage.
Unit: in. (mm)
Downward
gradient 1/100
or more
Horizontal or
upward gradient
Not good
Air bleeding
Trap
CAUTION
- (06 - 105) -
5 to 7ft.
(1.5 to 2.0m)
Downward gradient
1/100 or more
6. SYSTEM DESIGN
Hanging fitting