Installation Instructions - Ferroli ECOTOP VMF Instrucciones De Montaje

Important......................................................................................................................... 29
SUMMARY
Installation instructions ................................................................................................... 30
Commissioning instructions ............................................................................................. 31
Possible fixing points on a sloping roof .......................................................................... 31
Instructions for installation on sloping roof .................................................................... 32
Possible fixing points on a flat roof ................................................................................. 36
Instructions for installation on a flat roof ........................................................................ 37
Plumbing connections ...................................................................................................... 39
Technical data .................................................................................................................. 41

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 adher-
ence 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 ef-
fect, 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 installing 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
072216X0 caps kit (VMF/VMFA).
072217X0 plumbing fittings kit (VMF/VMFA).
072218X0 kit expansion joint kit (VMF/VMFA), for configurations with over the 4 panels (see fig. 9c).
072219X0 basic plumbing fittings kit (VRF/VRFA).
072220X0 ext. plumbing fittings kit. (VRF/VRFA).
072153X0 automatic vent kit (VRF/VRFA).
30
EN
ECOTOP VMF/VMFA/VRF/VRFA
cod. 3541D350 - Rev. 03 - 11/2014