Flat Roof Installation; Installation On Walls; Design Information Regarding - Viessmann Vitosol 100-FM Technical Manual

Design information regarding installation

Flat roof installation

During installation of the collectors (freestanding or lying flat), the
minimum clearances from the edge of the roof in accordance with
the standard must be observed (see page 95). If the roof size neces-
sitates a split array, ensure that sections of the same size are cre-
ated.
The collectors can be secured on any solid substructure or on con-
crete slabs.
Note
On pitched roofs with a low angle of inclination, the collector sup-
ports can be secured to the rafter anchors (see page 99) with the
9
mounting rails.
Check the structural condition of the roof.
When installing collectors on concrete slabs, secure them with addi-
tional ballast against slippage, tipping and lifting.

Installation on walls

Technical Building Regulations
For the rules regarding the implementation of solar thermal systems,
see the list of German Building Regulations (LTB) [or local regula-
tions].
Overhead glazing
Glazing with an angle of inclination greater than 10°
– No additional safety measures to protect against falling glass parts
are required for flat-plate and tube collectors with an angle of incli-
nation greater than 10°.
VIESMANN
98
(cont.)
Slippage is the movement of the collectors on the roof surface due to
wind, because of insufficient friction between the roof surface and
the collector fixing system. Collectors can be secured by guy ropes
or by being fixed to other roof structures.
Ballast and max. load on the substructure
Observe the calculations in accordance with EN 1991-1-4 and
EN 1991-1-1.
Note
The Viessmann "Vitodesk 100 SOLSTAT" calculation program is
available at www.viessmann.com to assist with calculations.
This combines the technical rules of all German Federal States for
the use of linear supported glazing (TRLV) issued by the Deutsches
Institut für Bautechnik (DIBt). This includes flat-plate and tube collec-
tors. It primarily concerns the protection of pedestrian and traffic
areas against falling glass.
Vertical glazing
Glazing with an angle of inclination smaller than 10°
– The TRLV does not apply to vertical glazing with an upper edge
higher than max. 4 m above a traffic area.
No additional safety measures to protect against falling glass parts
are required for flat-plate and tube collectors with an angle of incli-
nation less than 10°.
– For vertical glazing with an upper edge higher than 4 m above a
traffic area, suitable measures must be taken to effectively prevent
glass from falling (e.g. netting or trays below; see the following dia-
grams).
VITOSOL