Operating Instructions and Installation Instructions

Page.28
45° bend: calculation length 1 metre
90° bend: calculation length 2 metres
* length excluding roof or exterior wall outlets. Always adhere to a starting length of 1 metre!
** Vertical : horizontal ratio X + X1 + X2 : Y = 2 : 1
*** Vertical : horizontal ratio X + X1 : Y = 2 : 1
E
X
Y
B
Y
X
C
X
A
Y
X
Determination of restriction:
Wall pass-through - 1 metre vertical, 90° bend, max. 3 metres horizontal, wall pass-through no restriction.
Roof pass-through - 3 to 12 metres vertical, roof pass-through, fit 50 mm restriction plate.
D
Table of concentric pathways
Pathway Illustration X total in metres Y total in metres Restriction plate Other details
min* max* min* max*
Indirect exterior wall outlet A-B 1 3 0 3
Roof pass-through without slope C 2 12 from 3 metres
Roof pass-through with 45º
slope**
D 3 12 0 4 from 3 metres
Roof pass-through with 90º
slope***
E 1 12 0 2 from 3 metres