20
Installation Procedure
English
Instal
lation Pr
oc
edur
e
• Do not apply force to the piping on the unit side when
connecting the drain hose. The hose should not be
allowed to hang loose from its connection to the unit.
Fasten the hose to a wall, frame or other support as
close to the unit as possible.
Support pieces
3.28 to 4.92 ft (1 to 1.5 m)
1/100 or more
Ceiling
• Install horizontally.
Indoor unit
Be horizontal
Flexible hose
• Max. allowable aixs gap
Indoor unit
Max. 0.79 inch (20mm)
• Max. allowable bending angle
Max. 30°
Indoor unit
NOTE
• If a concentrated drain pipe is installed, refer to the
figure below.
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.
Step 11 Performing the drainage test
1
Do a leak test at the connection part of the flexible
hose and the drain pipe:
a
Connect a general hose to the connection part of
the flexible hose of the indoor unit, and pour in
some water.
Hose
Flexible hose
Water leakage
check part
b
After pouring some water, reassemble the rubber
cap on the connection part of a flexible hose of
the indoor unit and firmly tighten it with a band to
prevent leakage.
c
Check the leak test at the part where the adhesive
for the flexible hose and the drain pipe is used.
DB68-11272A-00_IM_CAC WindFree1,4way_AA_EN_.indd 20
DB68-11272A-00_IM_CAC WindFree1,4way_AA_EN_.indd 20
2021-09-17 오후 12:14:16
2021-09-17 오후 12:14:16
