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6. Tile roof installation
The assembly of solar collectors on a tile roof is done in a manner similar to that
described above, with a different position of the vertical legs A3 that have to be
placed horizontally underneath the E1/E2 in a parallel manner. The crosspieces X1
or X2 and X3 shorts are not needed for tile roof installation.
The profiles D3 longitudinal and transverse E1 or E2 have to be fixed to the roof with
strength and without compromising its tightness. The fixing procedure will depend on
the characteristics of the roof. With the installation fittings are supplied some
perforated flexible metal strips to facilitate this fixation on certain roof configurations.
(See fig. 19) The collectors and the support system can withstand wind velocity up to
120km/h and weight of snow up to 80cmheight at 45 degrees.
Figure 19.
7. Connections and Hydraulic Circuit
The collectors or different groups of solar collectors must be connected hydraulically
to form a closed primary solar collection circuit. The use of copper pipes is
recommended, with a wall minimum thickness of 1 mm and an adequate diameter for
the circulation flow of each part.
The entry of liquid to the group of solar collectors will be from the end at the bottom
of the collector. On the top end connection a plug must be installed. The output of
liquid will be done by the top of collector's opposite end of each bank. On the top
connection an end cap must be installed.
The route of the pipeline will be conducted so as to minimize the parts where the flow
of the hot fluid runs (of the collectors towards the tank or to the interchange at the
plant room).
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