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5 Installing the mounting system
Prior to installation, the module array must be measured out on the roof and the position of the modules
determined, taking into account any obstacles such as light domes or strips, fans or drains.
The individual installation steps of the system variant closed II (south facing) are described below.
References are made to mounting versions (MV) for the various design possibilities respectively to the
system variant east-west II. The associated work steps are described at the end.
5.1 Installing the base troughs and support components
Arranging the base troughs
e
M
e
Edge
M
Base trough variations
1
Connecting the base troughs
Subjects excepted. Illustrations are exemplary and may vary from the original.
V3.3 - April 2020/ASc,
Copyright BayWa r.e. Solar Energy Systems GmbH
e
M
e
joint
M
joint
2
3
Install the base troughs centrally beneath the
module joint (MV 1).
Maximum module field size without measurements
(MV 4) for compensation of temperature-related
length expansions 17 x 17 m (Module field 10 x 10
with approx. 1.70 m row distance).
Distance to adjacent module field: min. 50 mm
System edge / module joint:
e
= module length + 12 mm
M
Observe the accident prevention regulations when
sawing.
Selection of the base trough depends on the
respective project with recognition to the roof
characteristics.
1. base trough 150-30 w/cross drainage
2. base trough 150-30 w/protection layer
3. base trough 150-30 (bare)
Push the ends of the base troughs tightly together,
put the connectors under the ridge of the base
troughs and fix them by using two screws for each
connector.
Maximum uninterrupted rail length approx.17 m,
then install expansion joint or disconnect the rail
(MV 4).
The base trough joints and base trough ends must
be covered using the self-adhesive edge protection
provided.
The distance between the base troughs in the joint
may not exceed 100 mm.
8
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