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Mini duct type
Gap of 60 to 79 ft
(1.5 to 2 m)
28 in
(700 mm)
or less
Horizontal or
upward gradient
Supporter
Max. 12 in
(300 mm)
Locally arranged pipe
VP25
(O.D. 2 in
[32 mm]
or more)
RiseAir bleeding
Trap
Pohibited
VP30 or more (O.D. 2 in [38 mm] or more)
Downward gradient 1/100 or more
28 in
(700 mm)
or less
• Use general hard polyvinyl chloride pipe (VP25) (O.D. 2 in [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 - (06-67) - 5. Drain connection
SYSTEM
DESIGN
SYSTEM
DESIGN
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