Preparing For Installation Distribution Of Fixings On The Rafters - Viessmann Vitosol 200-T Installation Instructions Manual

Distribution of fixings on the rafters
Fixings:
■ Rafter flanges (from page 8)
Rafter hooks (from page 15)
■
Rafter anchors (from page 24)
■
■ Mounting brackets (from page 34)
Each number of collectors and collector combination
has a specific number of fixings allocated to it.
Subject to the spacing between rafters, a specific num-
ber of rafters is used for attaching the fixings.
The following tables detail the rafters to which the fix-
ings should be attached.
a
74
790
Fig. 1
Position of fixings
Tube retainer
A
1 collector
Combination
2
1 x 1.51 m
1 x 3.03 m 2
2 collectors
Combination
2
1 x 1.51 m /
2
1 x 3.03 m
2
2 x 3.03 m
6
74
Rafter spacing a in mm
Rafter spacing a in mm
Example:
■ 3 collectors
■
Combination comprising 1 x 1.51 m
2
2 x 3.03 m
■ Rafter spacing 600 mm
Look up the combination in the table for 3 collectors on
page 7 (highlighted grey):
Of the 9 rafters, the following are used:
Rafters 1, 2, 3, 6, 7, 9
A
790
Rafters used
600
≤
700
≤
800
≤
600
≤
700
≤
800
≤
Rafters used
600
≤
700
≤
800
≤
600
≤
700
≤
800
≤
2
and
1, 2
1, 2
1, 2
1, 4
1, 3
1, 3
1, 2, 3, 5
1, 2, 3, 5
1, 2, 3, 4
1, 4, 5, 7
1, 3, 4, 6
1, 3, 4, 6