16
Drain pipe and Drain hose Installation (Continued)
1
Install horizontal drain pipe with a slope of 1/100 or more and fix it by
hanger space of 1.0~1.5m.
2
Install U-trap at the end of the drain pipe to prevent a nasty smell to reach
the indoor unit.
Centralized Drainage
Without the drain pump
1
Install main air vent at the front of the farthest indoor unit from the main
drain when installed indoor units are more than 3.
2
You may need to install individual air vent to prevent water flow back at the
top of each indoor unit drain pipe.
With the drain pump
Hanger
Main drain pipe
Individual
air vent
Main air vent
Centralized horizontal drain pipe
(more than 1/100 slope)
330mm or
less
1~1.5m
100mm or more
Ceiling
Horizontal drain pipe
more than 1/100 slope
NASA_Big Duct_AM@@@FNHDEH@_IM_EN_03653A-06.indd 16 2016-12-01 오후 3:06:54
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