Exhaust Duct Dimensions - Miele PDR 510 EL Operating And Installation Instructions

Sample calculation
Exhaust duct di-
mensions
Table I
Components
Exhaust air hose (flexible aluminium)* / pipe
(temperature resistance min. 80 °C)
– 1 m laid straight or 1 m straight pipe
– 45° bend (radius of bend = 0.25 m)
– 90° bend (radius of bend = 0.25 m)
Non-return flap*
* optional accessories
Table II
Maximum permissible total duct-
ing length
20 m
40 m
80 m
A 1 bend, 90°, with inserted grate
= 1 x 0.8 m relative pipe length
B/D 2 bends, 90°
= 2 x 0.8 m relative pipe length
C 0.5 m pipe
= 0.5 x 1 m relative pipe length
Total ducting length
Result: the total ducting length is less than 20 m (as per Table II). A
pipe diameter of 100 mm will therefore suffice.
View from above
Installation
Relative pipe
length
1.0 m
0.6 m
0.8 m
14.3 m
Required diameter
100 mm
125 mm
150 mm
= 0.8 m
= 1.6 m
= 0.5 m
= 2.9 m
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