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 allocated number of rafter
anchors or mounting brackets (for use on
sheet steel roofs).
The spacing between rafters and the
potential snow loads dictates how many
rafters need to be used for fitting the raf-
ter hooks.
The following tables specify which raf-
ters the rafter anchors or mounting
brackets should be secured to.
Example:
■ 2 collectors type SV
■ Rafter spacing a 600 mm
■ Snow load 0.75 N/m

Type SV (vertical collectors)

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