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15. Installation
6) Checking the Drainage
1. Set the air direction louvers up-and-down to the posi-
tion(horizontally) by hand.
To check the drainage.
1. Pour a glass of water on the evaporator using a ket-
tle.
2. Ensure the water flows through the drain hose of the
indoor unit without any leakage and goes out the
drain exit.
Drain piping
1. The drain hose should point downward for easy drain
flow.
2. Do not make drain piping like the following.
Do not raise
Water
leakage
Accumulated
drain water
Air
Water
Waving
leakage
Ceiling & Floor, Ceiling Suspended (50Hz, R22)
Tip of drain hose
dipped in water
Water
leakage
Ditch
Downward slope
Less than
50mm gap
79
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