5. Drain piping

•Incline the drain piping to the outside (drain side) as shown in the figure below. •The outlet of the indoor unit drain pipe is Rc1.

•After completion of piping, confirm that drainage is good and that there are no leaks.

Indoor unit drain piping

Install thermal insulation to prevent dew

The drain piping should have a drain trap.

A >= 70mm

B >= 2xC >= 70mm

C=> 35mm

 

B

 

Drain pan

C

 

 

 

 

A

 

Slope

Drain piping

20mm/m

Drain trap

The drain pipe

Open drain

should extend

 

 

 

below this level.

 

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