Heat Controller DMH18DB-1 manual Checkingthedrainage, To check the drainage, Drain piping

Checking the Drainage, Forming the Pipings and Long Pipe Setting

Checking the Drainage, Forming the Pipings and Long Pipe Setting

Checkingthedrainage

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.

Downward slope

Do not raise

Water	Water
leakage	leakage

Accumulated
drain water		Tip of drain hose	Less than
Air
			50mm gap
		dipped in water
Waving	Water
	leakage	Ditch

Service Manual 29