Checking The Drainage, Forming The Pipings And Long Pipe Setting; Checking The Drainage - Heat Controller DMH18DB-1 Service Manual

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. Examples of incorrect drain piping.
Do not raise
Water
leakage
Checking the Drainage, Forming the Pipings and Long Pipe Setting
Accumulated
drain water
Air
Water
Waving
leakage
Tip of drain hose
dipped in water
Water
leakage
Ditch
Downward slope
Less than
50mm gap
Service Manual 29