Installation

Example: Calculating the effective duct length and required internal duct diameter

Rigid pipe

 

Duct length

Duct length

 

 

ft

m

 

 

 

 

A

Wall duct with

12’ 5"

3.8 m

 

louvered wall vent

 

 

 

 

 

 

B

90° bend

2’ 7"

0.8 m

 

 

 

 

C

20" (0.5 m) rigid pipe

1’ 7"

0.5 m

 

 

 

 

D

90° bend

2’ 7"

0.8 m

 

 

 

 

E

left vent opening

3’ 3"

1.0 m

 

 

 

 

Total duct length

 

22’ 5"

6.9 m

 

 

 

 

The total duct length is less than 33 feet (10 m), so a duct diameter of 4" (100 mm) with adapter is sufficient.

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Image 38
Miele T 1313, T 1312 operating instructions Total duct length