Fujitsu Airstage J-IVS AJ 040LCLDH Series Design & Technical Manual page 734

¢ Low static pressure duct (Mini duct) type
Locally arranged pipe
Max. 300 mm
VP30 or more (O.D. 38 mm or more)
• Use general hard polyvinyl chloride pipe (VP25) (O.D. 32 mm).
• Do not perform a rise, trap, and air bleeding.
• Provide a downward gradient (1/100 or more).
• Provide supporters when long pipes are installed.
• Use an insulation material as needed to prevent the pipes from freezing.
• Install the pipes in a way that allows for the removal of the control box.
5-2. Indoor unit
Gap of 1.5 to 2 m
Supporter
VP25
(O.D. 32 mm
or more)
Horizontal or
upward gradient
Downward gradient 1/100 or more
- (06-74) -
Pohibited
Air bleeding Rise
rap
T
5. Drain connection