Installation Guidelines - Bosch c-Si M 48 Operating Instructions Manual

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4 Installation guidelines

Important Notice!
„ Definitely align the solar module so as to avoid a sha-
dowing effect (even to a temporary or partial extent:
e. g. due to roof dormers, trees), since this can lead to
damage in the solar modules (e. g. formation of „hot
spots"), failure of the PV generator and loss of output.
„ The additional loads which arise by way of the weight
and the structural attachment of the PV system are to
be included in the structural analysis of the overall
construction.
„ Verifications of stability, deflection and load parame-
ters are to be initiated by the constructor or the opera-
tor of the system.
„ Install the modules on a sufficiently-dimensioned,
load-bearing and permanently corrosion-resistant
substructure.
„ Observe the specifications for mounting areas accor-
ding to Illustrations 1 and 2.
„ Attachment with clamps on the narrow sides of the
solar module may not be performed.
„ The attachment of the solar module can be performed
with clamps (or as an alternative, directly on the instal-
lation holes). When clamping systems are used, the
clamp surface per attachment point on the module
must amount to at least 400 mm².
„ Position of the installation drill holes in accordance
with Illustrations 3 – 6
„ Per module, four non-corrosive screws and nuts (and
grommets with min. 12 and max. 14 mm exterior dia-
meters) are to be used in accordance with Table 1.
Bosch Solar Module c-Si M 48 I Bosch Solar Module c-Si M60 I Bosch Solar Module c-Si M60 S I Bosch Solar Module c-Si P60
„ The modules must be attached flush to the substruc-
ture (without tension and deformation) at no less than
four points.
„ The substructure and the solar module must have the
same heat-expansion coefficient (aluminum).
„ Contact corrosion between the solar module and the
substructure is to be avoided when different materials
are used.
„ Attach the solar modules so that they with-stand all
foreseeable loads and weather-induced influences.
„ Only use non-corrosive screws for the installation.
„ The solar module must be installed without mechani-
cal tension and (to compensate material expansion
due to temperature fluctuations) with a minimum gap
of 5 mm to the next module.
„ Particularly in exposed locations, sufficient lightning
protection is recommended.
„ Integration into existing lightning protection systems
must occur in observance of the valid regulations.
„ Only install solar modules edgewise (or crosswise),
with the connector socket facing upward.
„ In the course of elevation, it must be ensured that no
rainwater or condensation water can run in the direc-
tion of the cable screw connections on the connector
sockets.
„ The solar module may not stand in tail water or con-
densation water.
Module manufacturer code
11, 13
14, 17
Table 1: Permissible fastening screws for direct instal-
lation
Installation guidelines | 17
Screw diameter
M6
M8
Robert Bosch GmbH