8.4 Other accessories
Transport aid
Part no. ZK01 512
■ For installation on the flat-plate collector
■ For installation support with a crane or when using a rope for
installing and securing collectors on the roof
■ Components:
– 2 plastic holders
– 2 carabiners
Design information regarding installation
9.1 Snow load and wind load zones
The collectors and the fixing system must be designed in such a way
that they can withstand any snow and wind loads that may occur.
EN 1991, 3/2003 and 4/2005, identifies various snow and wind load
zones for every country in Europe.
The Vitodesk 100 SOLSTAT calculation software is available for cal-
culating snow and wind loads as a function of building characteris-
tics. The software enables snow and wind loads to be calculated as
a function of location and assists in determining the required installa-
tion system.
9.2 Distance from the edge of the roof
Observe the following for installation on pitched roofs:
■ If the distance from the top edge of the collector array to the ridge
of the roof is greater than 1 m, we recommend installing a snow
guard.
■ Never install collectors close to roof overhangs where snow is
likely to slide off. If necessary, install a snow guard.
Note
The additional loads due to accumulated snow on collectors or
snow guards must be taken into account in the structural calcula-
tions for the building.
Certain parts of the roof are subject to special requirements:
■
Corner area A: limited on two sides by the end of the roof
■
Edge area B: limited on one side by the end of the roof
See the diagrams below.
The minimum width (1 m) of corner and edge areas must be calcula-
ted in accordance with EN 1991 and must be observed.
Allow for increased wind turbulence in these areas.
Note
For the calculation of clearances on flat roofs, the Viessmann
"Vitodesk 100 SOLSTAT" calculation program is available at
www.viessmann.com.
Installation accessories
(cont.)
VITOSOL
VIESMANN
95
5822 440 GB
9
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