15
Prepare a little water about 2 liter.
1
Pour water into the base pan in the indoor unit as shown in figure.
2
Confirm that the water flows out through the drain hose.
Testing the drainage
1
Install horizontal drainpipe 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 drainpipe to prevent a nasty smell to reach the indoor unit.
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
drainpipe.
With the drain pump
Hanger
Main drainpipe
Individual
air vent
Main air vent
Centralized horizontal drainpipe
(more than 1/100 slope)
550mm or
less
1~1.5m
100mm or mor
e
Ceiling
Horizontal drainpipe
more than 1/100 slope
Centralized Drainage
G_6
DVM Big Duct_EU_IM_DB68-05047A-01_EN_16.03.30.indd 15
2016/4/7 15:54:24