Design and Technical Manual

6. SYSTEM DESIGN
PVC pipe
(Local
arrangement)
(3/4 inch)
Locally arranged pipe
Max.
12 in. (300 mm)
Supporter
28 in. (700 mm) or less
Horizontal or
upward gradient
Gap of 5 to 7ft.
(1.5-2.0 m)
Not good
Air bleeding
Rise
Trap
CAUTION
Drain lift-up pipe restrictions: ●
(1) Lift-up height ≤ 28 in. (700 mm) (from ceiling)
(2) Drain hose (pipe) length ≤ 12 in. (300 mm) (between indoor unit and lift-up pipe)
When a dimensions exceed the above restrictions will cause water leakage. ●
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SYSTEM DESIGN SYSTEM DESIGN