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INSTALLATION INSTRUCTIONS
Installation of Drain Hose (cont.):
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 a drain line; the drain hose must be trapped (U-shaped) to avoid
sewer smell from entering through the hose into room.
Indoor unit
Water outlet
Multiple units use water outlet header to drain water into building drain
Drainage Test:
Ensure the drain hose is clear and all connections are tightly sealed before testing.
Perform the drainage test as follows:
1. Add about 0.132gal (500ml) of water into the drain pan through water injection port.
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 port plug. For
the position of water injection port; see the figure:
UP
31-5000474 Rev. 1
Snap ring
Drain hose
Set a supporting point at every
2~4in
12~13in
Water outlet header
PVC drain hose
Rigid PVC adhesive
31-39
Inclination 1/100
12~13in
2~4in
12~13in
Inclination 1/100
Open or close the
water injection port by
rotating the port plug
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