INSTALLATION INSTRUCTIONS

Calculate the effective duct length

The overall duct length will determine the duct diameter.

^Measure the actual duct length needed:

1.Establish the number of elbows or bends necessary, noting the type of bend, angle and radius involved (see, Table 1).

2.Add the additional duct length as specified in Table 1 to the actual duct length to get the effective duct length.

3.The necessary duct diameter can then be found in Table 2.

Note:

Drying times and energy consumption remain unaltered for 4" (100 mm) duct up to a total length of 66 ft. (20 m).

Longer ducts may lead to slight increases, but, the function will not be impaired as long as the necessary duct diameter is used (Table 2).

Table 1

Type

Angle

Radius

Additional

of bend

 

 

 

 

duct length

 

 

inch

 

cm

inch

 

cm

 

 

 

 

 

 

 

 

 

 

 

 

Flexible

90 °

up to

 

40.6

20"

 

50.8

metal duct

 

16"

 

 

 

 

 

 

45 °

up to

 

40.6

12"

 

30.5

 

 

16"

 

 

 

 

 

 

 

 

 

 

 

 

 

Smooth

90 °

4"

 

10

14"

 

35.6

metal duct

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Elbow 90°

90 °

 

 

 

90"

 

228.5

sharp;

 

 

 

 

 

 

 

no radius

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Concertina

90 °

8"

 

20.3

28"

 

71.1

bend

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wall vent kit

 

 

 

 

142"

 

360.7

with louvres

 

 

 

 

 

 

 

or

 

 

 

 

 

 

 

window

 

 

 

 

 

 

 

vent kit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wall vent kit

 

 

 

 

99"

 

251.5

with flap or

 

 

 

 

 

 

 

window

 

 

 

 

 

 

 

vent kit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exhaust

 

 

 

 

193"

 

490.2

connection

 

 

 

 

 

 

 

left side

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2

Internal diameter or

 

Effective duct

edge length

 

length

 

 

 

 

 

inches

mm

 

ft

m

 

 

 

 

 

4"

100

0

- 66

0 - 20

5"

125

66

- 100

20 - 30

6"

150

100 - 140

30 - 42.7

 

 

 

 

 

26

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Image 30
Miele T 1576 operating instructions Calculate the effective duct length, Type Angle Radius Additional Bend Duct length Inch