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9
Connection of indoor drain hose
1. Please use the accessory drain hose to connect indoor unit's water outlet and PVC pipe. Use snap rings to tighten
them as shown in the following gure:
2. Please use rigid PVC adhesive for connection of other pipes and ensure there is no leakage.
3. Drain hose must be wrapped with insulation sleeve and tightened with a strap to prevent air leakage from producing
condensate.
4. To prevent water owing back into air conditioner when the unit stops running, drain hose should decline to the
drainage side with an inclination of above 1/100. Drain hose expansion or water accumulation should be prevented, or
else it will cause abnormal noise.
5. When connecting the drain hose, do not pull on it to avoid the pipe connections from getting loose or disconnected.
Drain hose should not be pulled out laterally for more than 8in(200mm) and should be supported every 31-39in(0.8-
1.0m) to avoid bending.
6. The end of drain hose should be more than 2in(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 smell
from entering through the hose into room.
Drainage test
Before the test, ensure the drain hose is clear and all connections are
tightly sealed.
Then perform the drainage test as follows:
1. Add about 0.132gal (500ml) of water into the water pan through
water injection hole.
2. Switch on the power and operate the unit in cooling mode. Check
that the water outlet drains water normally and that there are no
leakages at the connections. After the drainage test is complete,
replace the water injection hole plug. For the position of water
injection hole, see the gure on the right:
Set a supporting point at every 31-39in(0.8-1.0m)
8in(200mm)
24in
(600mm)
2
-
4in(50-100mm)
2
-
4in(50-100mm)
8in(200mm)
8in(200mm)
27.5in(700mm)
27.5in(700mm)
Installation Procedures
Installation of drain hose
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