Preparing For Installation Observe Prior To Installation; Type Sv (Vertical Collectors) - Viessmann Vitosol-F Installation Instructions Manual

Observe prior to installation
For each number of collectors, there is a specific allo-
cated number of rafter anchors or mounting brackets
(for use on sheet steel roofs).
The spacing between rafters and the potential snow
loads dictate how many rafters need to be used for the
installation.
The following tables specify which rafters the rafter
anchors or mounting brackets should be secured to.

Type SV (vertical collectors)

1 collector
2 rafters are required for all snow loads.
2 collectors
Rafter spacing in
Snow load in kN/m
mm
≤
600
≤
700
≤
800
≤
900
≤
1000
≤
3 collectors
Rafter spacing in
Snow load in kN/m
mm
≤
600
≤
700
≤
800
≤
900
≤
1000
≤
6
2
0.75
>
1, 4
1, 3
1, 3
2
0.75
>
1, 3, 5
Example:
■ 2 collectors type SV
Rafter spacing a 600 mm
■
■
Snow load 0.75 N/m
Of the 4 rafters, the following are used:
Rafters 1 and 4
=
Fig. 1
Position of rafter anchors
A
Mounting rails
B
0.75/ 1.25 1.25/
≤ >
1, 3, 4
1, 2, 3
1, 2, 3
0.75/ 1.25 1.25/
≤ >
1, 2, 4, 5
1, 2, 4, 5
1, 2, 3, 4
1, 2, 3, 4
2
a
A B
=
2.55 2.55/
≤ >
1, 3, 4
1, 2, 3
1, 2, 3
2.55 2.55/
≤ >
1, 3, 4, 6
4.80
≤
4.80
≤