Western Airconditioning SCVH12A-A1NA I, User And Installation Manual, Page: 17 / 27

15
Drain hose
<Immiting water from the rest hole>
Plastic water pot (The length of
the pipe should be about 100mm.)
<Immiting water from the outlet vent terminal>
Above
100mm
Installation of the Unit
● Precautions When Doing Riser Piping Work
● Testing of Drain Piping
1. Make sure that heat insulation work is executed on the following 2 spots to prevent any
possible water leakage due to dew condensation.
1). Connect the drain hose to the drain lift pipe, and insulate them.
2). Connect the drain hose to the drain outlet on the indoor unit, and tighten it with the
clamp.
2. Make sure the lift pipe is at most 280mm.
3. Stand the lift pipe vertically, and make sure it is not further than 300mm from the base of
the drain outlet.
4. Secure a downward gradient of 1/100 or more for the drain pipe. To accomplish this,
mount supporting brackets at an interval of 1 -1.5 m.
After piping work is finished, check if
drainage flows smoothly. Shown in the
Fig.26, Add approximately 1liter of
water slowly into the drain pan and
check drainage flow during COOL
running.
Drain lift pipe
Ceiling
Clamp (attachment)
Roof
Drain hose
(attachment)
Hoisting
stand
1-1.5m
≤300mm
Fig.25
Fig.26