General
The installation must only be carried out by competent
personnel.
The enclosed materials are those required for the installa-
tions described (see page 12),. In special cases, these may
need to be supplemented. If in doubt, contact your supplier.
Information on the applicable standards and regulations
must be obtained prior to installation and commissioning.
The electrical installation, as well as the notification to the
network operator, must be carried out by a qualified electri-
cian. Please note that commissioning the installation before
the network operator has given its approval is not permitted.
NOTE
Installation of a solar panel is an extensive inter-
vention on an existing roof. The roof covering,
particularly on converted and inhabited loft spaces
or where the roof's minimum angle is undersized
(relative to the covering), may require further
measures against moisture because of wind pres-
sure and drifting snow, this must be evaluated by
the installer on a case to case basis. The roof
design must be able to handle the wind and snow
loading that can occur in the region.
STATIC LOAD
The installation is only permitted to be performed on roof
surfaces or support structures with sufficient carrying ca-
pacity and strength. If necessary, the static load capacity
of the roof and roof structure must be investigated before
the solar panels are installed. Great importance should be
placed on the condition of wooden roof structures and the
possibilities for screwing the mounting devices for the solar
panels to the structure. The roof structure must be rein-
forced if necessary. Inspection of the whole solar panel in-
stallation in accordance with DIN 1055 part 4 and 5, or in
accordance with country-specific regulations, is required,
in particular in areas that experience snowfall and strong
winds. The characteristics of the installation’s location
(prevailing wind direction, whirlwinds, etc.) must also be in-
cluded in the calculation/estimate if these could involve in-
creased loads. The solar panels must be installed so that
snowdrifts resulting from snow guards or due to special
conditions in the installation location cannot occur in the
vicinity of the solar panels.
The distance from the outer edges of the roof must be at
least 0.35 m at the sides of roofs and 0.2 m at ridges and
eaves, in order to reduce the risk of the wind ripping the
solar panels off.
The installation system according to DIN 1055 part 5 for
snow zone II is intended for use up to 400 m above sea level.
If the installation is made on a tiled roof, it is recommended
that the snow is cleared if it reaches a depth of more than
30 cm on the solar panels (NOTE! If the snow has melted,
been packed down and then more snow has fallen and so
the density has increased, the snow may need to be cleared
- even though it is not 30 cm deep.)
If there is a risk that the snow will slide down onto the panels
and in particular behind the rear of raised panels, snow
guards must be installed to prevent this.
Also ensure that the material under roofs with roof tiles is
sufficiently stable to support the roof mounting points.
Otherwise the roof must be reinforced. The installer must
evaluate this and make a decision. If in doubt, a structural
engineer needs to be consulted. We also recommend that
the roof tiles should be ground down so there are no point
loads between the roof and the roof brackets. The minimum
distance between roof tiles at overlap points and the under-
side of the brackets is 3 mm, in order to allow for any
movements in the mounting system due to the loads that
can arise.
SAFETY INSTRUCTIONS
•Safety regulations for working on roofs and similar struc-
tures must be followed.
•Protection against falling parts must be installed. This is
particularly important in locations where people pass be-
low the roof/building.
•Personal safety equipment and/or scaffolding must be
used when working on roofs, according to applicable reg-
ulations.
•Suitable measures must be taken during installation to
ensure that the solar panel does not come loose and fall.
•Observe the safety distance to live conductors.
9Chapter 3 | InstallationNIBE PV Solar cell package
Installation
