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SUMMARY
InstallatIon InstructIons
Instructions for installation and transport
Installation must only be carried out by qualified personnel, in compliance with all the instructions given in this technical manual, the provisions of current
law, the prescriptions of the national and local regulations and the rules of proper workmanship. The installation of one or more collectors is an operation
that modifies the roof's existing structure. The coverings of roofs, e.g. tiles, shingles and slate, especially in attics and inhabited lofts, or if the minimum
roof slope is less than the permissible values (for coverings), require additional constructional measures, such as waterproofing membranes to prevent
water entering due to the pressure of wind or snow. These substructures, with their connections to the part in masonry, must be prepared on the spot
according to the local situation. Fixing by means of cement ballast blocks and guys enables collector installation without making holes in the covering.
The collectors are assembled on cement slabs. Use rubber mats in order to increase the adherence between the roof and the cement blocks and prevent
damage to the covering. The structure, fasteners + panel, is able to withstand snow of 1.2 kN/m 2 (on the panel) and wind speeds up to 100 km/h. For
the absorption of larger loads, additional fixing using steel cables is required. The permissible load for the roof and the connection points must be
checked on the spot by a statics expert. It is advisable to use a suitable belt to carry the collector. Do not lift the collector by the connections. Make
sure the collector does not get knocked or undergo mechanical actions; above all, protect the solar glass and pipe connections.
Statics
Installation must only be carried out on roofs or frames that are suitable and strong enough. The static capacity of the roof or frame must be checked on
the spot before installing the collectors. In particular, check the suitability of the framework wood regarding the hold of the screw connections arranged
for fixing the collectors. The check done by the constructor of the entire framework in compliance with the current regulations in the country, is required
above all in areas subject to heavy snowfall or in regions exposed to strong winds. In such cases, take into account the characteristics of the place of
installation (Föhn, jet effect, creation of vortices, etc.), that can involve higher stresses. The collectors must be assembled in such a way as to prevent
accumulation of snow by means of protection structures. The distance from the ridges/edges of the roof must be at least 1 m.
Lightning protection / Building potential equalisation
As a rule, the collectors do not have to be connected to the building's lightning protection (observe the regulations in force in the country!). When install-
ing on metal substructures, make sure to consult authorised experts in lightning protection. The metal pipes of the solar circuit must be connected by
means of a conductor (green/yellow) of at least 16 mm 2 CU (H07 V-U or R) to the main potential equalising bar. Earthing can be done with a buried earth
wire. The earth conductor must be laid outside the building. The earth plate must also be connected to the main potential equalising bar by means of a
line of the same diameter.
Check
•
the completeness and integrity of the supply.
•
the optimum arrangement of the solar collectors. Take in account the solar radiation (angle of inclination, south orientation). Avoid the shade of tall
trees or similar and adapt the range of the collectors to the building's architecture (e.g. alignment with windows, doors, etc.).
Connections
The materials used must be resistant to temperatures (up to 220 °C), the heat transfer fluid and weather conditions.
Up to 8 collectors can be connected in series.
FERROLI accessories to be used
072235X0 plumbing fittings kit
072236X0 ext. plumbing fittings kit.
072237X0 automatic vent kit
EN
34
Important......................................................................................................................... 33
Installation instructions ................................................................................................... 34
Commissioning instructions ............................................................................................. 35
Possible fixing points on a sloped roof ........................................................................... 36
Instructions for installation on a sloping roof .................................................................. 38
Plumbing connections ...................................................................................................... 41
Possible fixing points on a flat roof ................................................................................. 42
Instructions for installation on a flat roof ........................................................................ 43
Plumbing connections ...................................................................................................... 45
Technical data .................................................................................................................. 47
Cod. 3541I450 - Rev. 03 - 02/2017
VHM 2.1 - 2.7
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