Airwell AW-DDV009/007-N11 Betriebs Und Installationsanleitung Seite 13

Installation Procedures
Installation of drain hose
Connection of indoor drain hose
1.Please use accessory drain hose to connect indoor unit's water outlet and PVC pipe and use
snap rings to tighten them, as shown in the following figure:
2.Please use rigid PVC adhesive for connection of other pipes and ensure there is no leakage.
3.Drain hose must be wrapped up with insulation sleeve and tightened with strap to prevent air
leaked in producing condensate.
4.To prevent water flowing back into air conditioner when the it stops running, drain hose shall
decline to the drainage side with a declination of above 1/100. Drain hose expansion or water
accumulation shall be prevented, or else it will cause abnormal noise.
5.When connecting the drain hose, do not pull on it so as to avoid the pipe connections getting
loose or off. Drain hose should not be pulled out laterally for more than 20cm and should be
supported every 0.8-1.0m to avoid bending.
6.The end of drain hose should be more than 50mm away from the ground or the bottom of
drainage tank. It should not be put in water. To directly drain condensate into drainage ditch, the
drain hose must be U-shaped to avoid stink spreading through the hose into room.
Drainage test
Before test, firstly ensure the drain hose is
unblocked and all connections are tightly sealed
and then perform the drainage test as follows:
1. Inject about 500ml water into the water pan
through water injection hole;
2. Switch on the power and make air conditioner
operate in refrigerating mode. Check whether
the water outlet drains water normally and
there are no leakages on connections. After the
drainage test is complete, replace the water
injection hole plug.For the position of water
injection hole, see the figure on the right:
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