Install The Drain Pipe MCAC-KTSM-2007-2
158 The Installation of MKB
4. Install The Drain Pipe
Install the drainpipe of the indoor unit
You can use a polyethylene tube as the drainpipe (out-dia. 31~32mm, in-dia. 25mm). It could be bought at
local market or from your dealer.
Set the mouth of the drainpipe onto the root of the body's pump-pipe, and clip the drainpipe and the out-let
pipe sheath (fittings) together firmly with the out-let pipe clasp (fitting).
The body's pump pipe and the drainpipe (especially the indoor part) should be covered evenly with the
out-let pipe sheath (fittings) and be bound tightly with the constrictor to prevent condensation caused by
entered air.
To prevent water from flowing backwards into the air conditioner while the air conditioner stops, please lean
the drainpipe down toward outdoor (outlet-side) at a degree of over 1/50. And please avoid any bulge or
water deposit. (Refer to Chart 24.a)
Do not drag the drainpipe violently when connecting to prevent the body from being pulled.
Meanwhile, one support-point should be set every 1~1.5m to prevent the drainpipe from yielding (Refer to
Chart 24.b). Or you can tie the drainpipe with the connecting pipe to fix it. (Refer to Chart 24.c)
In the case of prolonged drainpipe, you had better tighten its indoor part with a protection tube to prevent it
from loosing.
If the outlet of the drainpipe is higher than the body's pump joint, the pipe should be arranged as vertically as
possible. And the lift distance must be less than 200mm, otherwise the water will overflow when the air
conditioner stops. (Refer to Chart 25)
The end of the drainpipe should be over 50mm higher than the ground or the bottom of the drainage chute,
and do not immerse it in water. If you discharge the water directly into sewage be sure to make a U-form
aqua seal by bending the pipe up to prevent the smelly gas entering the house through the drain pipe.
Cautions:
All the joints of the drain system must be sealed to prevent water leakage.
a
c
b
Lean over 1/50
Lean over 1 /5 0
Pump -pipe clasp
(t he f itti ngs)
1-1.5m
1-1.5 m
>1.5m
>200mm
<
20
0
m
m
22
3m
m
Constrict here
Le an over 1/50
Drainpipe
Connecting pipe
Chart 24
Chart 25
Drainage test
Check whether the drainpipe is unhindered
New built house should have this test done before paving the ceiling.
Remove the test cover, and stow water of about 1500ml to the water receiver through the stow tube. (Refer
to Chart 26)
