3 Installation
3.1 Orientation
Ideally, the front of the solar modules should face
due south.
The tilt angle can be calculated as follows:
The ideal tilt angle corresponds to the latitude of the
installation site minus 20°
To achieve a good self-cleaning effect through pre-
cipitation the tilt angle of the solar modules should
be at least 20°.
≥ 20°
Avoid any shading and heat build-up at the rear of
the module. Both can lead to significant losses in
yield!
3.2 Maximum series/parallel configuration
CAUTION
Only solar modules of the same type and output class
may be connected in series! The maximum system
voltage of the modules must never be exceeded!
To achieve the required system currents the modules
may be connected in parallel. Only modules of the
same type and voltage may be used. Ensure that the
specified permitted load capacity with regard to the
return current IR is not exceeded!
4 Installation
4.1 General
CAUTION
Mount the modules only on suitable support struc-
tures. These structures must ensure that no mechani-
cal stresses are transferred from the building (e.g.
the roof structure) to the module.
The minimum distance between modules is 5 mm to
allow for material expansion.
The modules must be installed such that water flow
(particularly along the cable) towards the cable
gland at the junction box is prevented.
The connection cables between the modules and
towards the inverter must be installed such that the
closed connectors are not permanently in water. This
means, for example, that rainwater must be able to
drain from U-shaped profiles.
Use only the holes provided in the frame! Do not
drill, nail or weld the module frames.
The mounting systems recommended and approved
by Sunways can be found on our website at
http://www.sunways.de.
4.2 Standard mounting
Each module must be secured at a minimum of
four points (drill holes in the long sides - see dia-
gram in section 2, Your Solar Modules). The frame
is structurally approved for mounting on the long
sides. Mounting on the short module sides must be
avoided. The maximum tolerance is 100 mm.
100
100
100
100
1000
Insertion systems (U-shaped profile over the whole
long/short side) are permitted under the following
load conditions:
Short side mounting
Mounting rails only at the short edges without cen-
tral support for loads up to 2400 Pa
Mounting rails at the short edges with central sup-
port for loads up to 5400 Pa
Long side mounting
Mounting rails covering the whole length of the long
edges for loads up to 5400 Pa
2400 Pa
5400 Pa
5400 Pa
Only use corrosion-resistant screws. Use a torque
wrench and tighten the screws with 20 Nm.
4.3 Installation instructions for laminates (frame-
less modules)
Avoid pointwise support and mounting of the lami-
nates, except with mounting brackets approved by
Sunways. These brackets are designed for loads up to
2400 Pa.
Further details and recommendations can be found
on our website at http://www.sunways.de.
Otherwise the laminates must be linearly supported
and fixed at both long module sides as a minimum.
All support rails must be aligned such that twisting
or warping of the laminates is avoided.
Only use mechanical fixtures for mounting the mod-
ules. Do not use adhesives or adhesive tapes for fas-
tening the laminates, unless they have been explicitly
approved by Sunways.
Please ensure that the laminate edges are not per-
manently in water and are allowed to dry.
Please note that the glass edges of the modules are
particularly sensitive to impact.
Follow the installation instructions for the respective
mounting system.
4.4 Other data
Bundling or concentration of solar radiation, for
example using lenses or mirrors, is prohibited!
Avoid covering the drainage holes in the module
frames.
For any maintenance and repair work produce a plan
documenting the module installation layout, includ-
ing serial number allocation and cable layout.
