Calculation example
A Wall pipe, with louvred vent
= 1 x 3.8 m Additional duct
length
= 3.8 m
B/D 2 bends, 90°
= 2 x 0.8 m Additional duct
length
= 1.6 m
C 0.5 m plastic piping
=0.5x1mAdditional duct
length
= 0.5 m
Total duct length = 5.9 m
Result: A duct diameter of 100 mm is
adequate as the total duct length is less
than the 20 m specified in Table II.
Exhaust socket dimensions
View from above
Rear view
Installation - extraction ducting
50
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