Installation Manual
Last revised: January 2011
The technical specifications are subject to change without notice
page 4
4.
Mechanical installation
4.1 Location
The solar modules can be installed on roofs or open spaces on support structures. Please pay attention
to the local ordinances, building-standards and accident-prevention regulations during installation. The
attachment must be sufficiently dimensioned to cope with the location’s load requirements.
To obtain maximum yield from the system, all modules should have the same direction and tilt-angle,
and the solar irradiation should strike the modules perpendicular to their surface.
In the northern hemisphere, the surface of the solar modules must face south.
In Europe, the ideal module slope is approx. 30°-40°.
The solar modules should not be exposed to shadows cast by trees or buildings as this would lead to
energy losses! Even partial shading will cause a yield reduction! A module is “shade free“, when the
entire surface is shade free all year round and, even on the most unfavorable days of the year, receives
unobstructed sunlight.
The solar modules must not stand in water. There is a risk of corrosion with exposure to salt (it is
recommended that modules are installed at least 500m from the sea) and sulfur (sulfur sources,
volcanoes). The modules may not be exposed to extremely corrosive chemicals (e.g. emissions from
manufacturing plants).
When installed on a roof, the module shall be mounted over a fire-resistant roof covering rated for the
application.
4.2
Instructions for mounting
Assembly work may only be performed by trained and qualified personnel.
Fasten modules firmly to a support structure designed to withstand the local wind and snow
loads.
When selecting the material for the support structure, pay attention to the electrochemical
series in order to avoid galvanic corrosion between different kinds of metal.
A clearance of at least 20mm needs to be kept between the module frame and the attachment
surface. This allows the cool ambient air to circulate below the solar module. Ventilation of the
module backside is necessary to avoid the build-up of heat that can reduce performance.
There should be a clearance of at least 5mm between the individual module frames to allow
heat-related expansion.
Do not remove or alter the module frame. Please use the existing mounting holes and do not
drill any new holes into the frame! (doing so would void the warranty)
The module clamps, which are used must not touch or shade the front glass and must not
deform the frame.
The solar modules may be mounted at any angle from horizontal to vertical.
Each module must be securely fastened at a minimum of 4 points.
