Service Guide

Table Of Contents

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)

4in(50-100mm)

8in(200mm)

27.5in(700mm)

Installation of drain hose