Heat Controller DMH24DB-1 - Manual (Page 29)

Service Manual 29
Checking the Drainage, Forming the Pipings and Long Pipe Setting
Checking the drainage
To check the drainage.
1. Pour a glass of water on the evaporator.
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.
Downward slope
Do not raise
Accumulated
drain water
Tip of drain hose
dipped in water Air
Waving
Water
leakage Water
leakage
Ditch
Less than
50mm gap
Water
leakage
Checking the Drainage, Forming the Pipings and Long Pipe Setting