Fujitsu AIRSTAGE J-IIIL Design & Technical Manual page 590

¢ Slim duct/Slim concealed floor type
• Ceiling concealed setting
Arrange the drain hose
lower than this position
Locally arranged pipe
Max. 12 in
(300 mm)
• Floor standing concealed setting
– Install the drain pipe with downward gradient (1/50 to 1/100) and so there are no rises or traps in
the pipe.
– Use general hard polyvinyl chloride pipe (VP25) (O.D. 2 in [32 mm]) and connect it with adhe-
sive (polyvinyl chloride) so that there is no leakage.
– When the pipe is long, install supporters.
– Do not perform air bleeding.
– Always heat insulate the indoor side of the drain pipe.
5-2. Indoor unit
Drain hose
Drain cap
Prohibited
Trap
Gap of 60 to 79 in
(1.5 to 2 m)
VP25
(O.D. 2 in
[32 mm]
or more)
Horizontal or
upward gradient
Drain cap
Rise
Supporter
Prohibited
Trap
- (06-68) -
Supporter
60 to 79 in
(1.5 m to 2.0 m)
Air bleeding
Prohibited
Air bleeding
Trap
Rise
5. Drain connection
Rise