3.3 Dimensions of extension shaft
An extension is necessary for the wall duct depending on the conditions on site. It
should be remembered that using an extension shaft will reduce the system height by
500 mm. All dimensions are specified in mm:
Extension shaft 140 mm:
126
277
890
2
5
0
Ø303
1
7
4
S
y
s
te
m
h
e
ig
h
t
ve
rt
ica
l
-
1
0
0
14
0
1
1
0
0
Extension shaft 707 mm:
518
669
1291
6
5
0
Ø303
1
7
4
S
y
s
te
m
h
e
ig
h
t
ve
rt
ic
a
l
-
5
0
0
70
7
1
5
0
0
3
Technology
Dimensions of extension shaft
22
Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com
