Assembly Instructions - Sonnenkraft SK500 Handbuch

Montagehinweise

Assembly instructions

Istruzioni di montaggio
Instructions de montage
SOLAR ENERGY MADE BRIGHTER
Instrucciones de montaje
General and transport information
The installation may only be carried out by a qualified professional. The instructions provided here are directed at qual-
ified professionals only. The supplied materials must be used for the installation. Prior to installing and operating the
solar panel system, familiarise yourself with the standards and regulations valid at the site in question. We recommend
that you use a carrying strap to transport the solar collector. You must not lift the solar collector by its connections or
screw threads. Do not jolt the collector or allow parts of it to be affected by mechanical factors. This is particularly im-
portant for the glass, rear panel, and pipe connections. If, in the case of an aluminium tray collector, the collector has
a protective film, it must not be exposed to sunlight. The protective film must be removed prior to the installation.
Structural engineering aspects
The system may only be installed on a roof surface or substructure with a sufficient load-bearing capacity. The static
load-bearing capacity of the roof or substructure must be checked in accordance with local and regional stipulations at
the site prior to the installation of the panels, if necessary by means of the commissioning of a structural engineer. In
particular, it is important to check whether the quality of the (wooden) substructure is sufficient to enable the durability
of the screw connections for attaching the panel mounting apparatus. The onsite checking of the system (collectors and
attachment apparatus) as per EN 1991 and/or country-specific legislation is particularly important in areas prone to
heavy snow or high winds. All features of the installation site (foehn wind, venturi effect, vortex formation etc.) that
might result in higher stresses at the site in question must be investigated.
Information regarding sloping roofs: The installation of a collector field is carried out on a (preexisting) roof. Roof
claddings such as tiles, shingle, and slate, attics with a special construction or that are used for residential purposes,
and roof pitches that are below the minimum recommended value require (in relation to the cladding) additional meas-
ures to be carried out by the customer in order to protect against the penetration of water as a result of wind force and
driving snow. This might include sub-roof membranes, for example. To prevent overloading the roof cladding/joints (for
hanger screws and roof clamps), metal roofing must be used from a characteristic snow load of > 1.25 kN/m². When
selecting the installation site, note that the maximum permitted loads must not be exceeded as a result of snow or wind
forces. As a general rule, collector fields must be installed in a way that allows snow to freely slide off. Any accumulations
of snow as a result of the use of snow guards (or the peculiarities of the installation site) must not be able to reach the
panels. Snow catchers must be installed 0.5 m above the top of the panels to ensure that the panels themselves do not
act as snow arrestors. To prevent inadmissible wind loads, the panels must not be installed at the edge of a roof (e/10
zones as per EN 1991, but minimum gap of 1 m). In particular in the case of elevated structures, the top of a panel must
not protrude above the roof ridge. Panels must not be installed below a height transition so that it is not possible for
excess loads to fall onto the panel system from the higher level as a result of drifting or sliding snow. If, to solve this
problem, snow catchers are installed on the higher level, the statics of the higher level must also be checked.
Lightning protection/building potential equalisation
As per the stipulations of Lightning Protection Standard EN 62305 Parts 1 to 4, the collector field must not be connected
to the building's lightning protection. Beyond the scope of validity of this standard, country-specific legislation must be
observed. A safety gap of at least 1 m from any adjacent object that may be conductive must be left. In the case of
installations on top of existing metal substructures, an authorised and qualified electrician must be consulted. To enable
potential equalisation of the building, the metallic conductor pipes of the solar circuit and all of the collector housing/
fixtures must be connected to the main equipotential busbar in accordance with EN 60364 and/or country-specific leg-
islation by an authorised and qualified electrician.
Connections
Depending on the execution, the panels are to be connected with each other and/or to the connecting pipework by means
of flat sealing and using screwed fittings (1" internal/external thread). It is important to make sure that the flat gaskets
are properly seated. If no flexible tubes are available for use as connection elements, make sure that the connecting
piping allows for precautions to compensate for the thermal expansion caused by temperature fluctuations, e.g.: Expan-
sion bends and flexible piping (see the information on collector circuitry/operating recommendations). In the case of
larger collector fields, the intermediate placement of expansion bends/flexible piping is required (CAUTION: Check the
pump design). When the connections are tightened up, pliers or another wrench must be used as a counter wrench in
order to prevent the absorber from being damaged.
Collector inclination/general information
The collector is suitable for an inclination of between 15º and 75º. The collector connections and venting openings must
be protected so that water and contamination such as dust cannot enter them.
Guarantee
Warranty claim only in conjunction with the supplier's original frost protection and correct installation, commissioning
and maintenance. Installation by qualified personnel with strict adherence to the instructions is a prerequisite for the
justification of claims. Note: Installing solar thermal pannels (collectors) near to coastal regions or in any other corrosive
environment may result in corrusion and corrosion of the absorber. Sonnenkraft doesn't take any responsibility or lia-
bility for such damages if installed in such environment. If required, it is possible to contact us for a special solar panel
which is designed and suitable for such environment.
12
GB