Installation
Centralized horizontal drain pipe
(more than 1/100 slope)
Main drain pipe
Full thread bolt hanger
11.81 inch (300 mm)
to 21.65 inch (550mm)
7.87 inch (200
mm)or more
Individual
air vent
Main air vent
(must be installed)
Unit:inch(mm)
3.28 to 4.92 ft (1 to 1.5m)
• If 3 or more units are installed, install a main air vent
in front of the farthest indoor unit from the main drain
pipe.
• To prevent water from flowing back to indoor units, install
an individual air vent at the top of each indoor unit.
– The air vents should be T or 7 shaped to prevent
dust or foreign substances from entering.
– You may not need to install an air vent if the
horizontal drain pipe has a proper slope.
Connecting the power and
communication cables
Bushing bracket installation
When connecting the power supply wire conduit,
the supplied bracket must be installed as shown in
the picture below.
4 way Cassette
S>885>88T
1
2
3
5
4
push
Click
1 conduit tube
2 conduit tubes
+!,,/+&10
