Installation manual

33Installation manual auroTHERM 0020077994_00
VTK 570/2
VTK 1140/2
1
1
Fig. 6.4 Frames with gravel trays
If gravel trays are used:
• Place large protection mats under the sys-
tem.
• Set up the frames (1) according to the num-
ber of collectors to be mounted.
h
Note
The weights and distances can be
found in Table 6.1.
a
Caution!
Before mounting the collectors, fill
the gravel trays on the first frame
with gravel or other suitable
weighting material, to give the sys-
tem stability.
Fig. 6.5 Direct screwed connection
With screwed connection on the roof:
• Assembly frames based on the number of
collectors to be installed.
h
Note
The weights and distances can be
found in Table 6.1.
• Fix the frames on the roof.
a
Caution!
The roof skin can break and cause
lack of tightness!
When installing the roof sealing sur-
faces, make sure the roof skin is ade-
quately protected.
1
2
Fig. 6.6 Fixing and blocking the mounting rail
• Fasten the horizontal mounting rails (1) to
the clamping elements(2) on the frames.
• Compensate for any difference in height by
moving the clamping elements (2).
• Pull the lower part of the clamping element
(2) upwards; now it can be moved and it
engages again when released.
Flat-roof mounting 6
GB