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Voltage range
< 1 kV
1 ÷ 30 kV
30 ÷ 132 kV
< 132 kV
9
Contact with open, live electrical wires may lead to electrocu-
tion and may even be fatal.
9
Non-electrical works near live unprotected electric ducts with
which a contact is possible must be carried out in accordance
with laws and regulations in force in the country of installation.
10 INSTALLATION ON FLAT ROOFS WITH BALLAST
For checks of allowable loads contact a specialised technician.
In case of installations on flat roofs that cannot be drilled use bal-
lasts (not supplied) fairly distributed on all the bearing points, as
shown in the figure (Fig. 8).
Wind speed,
Inclination angle of
km/h
solar collectors
100
30°-45°
130
30°-45°
150
30°-45°
11 HYDRAULIC CONNECTIONS
9
During installation, pay attention to the position of the probe
with respect to the collector. The collector probe must always
be in the upper section of the panel as indicated in Fig. 9, Fig.
10, Fig. 11.
13 INCLINED ROOF INSTALLATION
BRACKETS KIT FOR SINGLE COLLECTOR
Table A shows the quantities and types of components to be ordered depending on the installation configuration chosen.
TABLE A
Description
Kit for 1 coll 2,0-2,5m
IR
2
Kit for 2 coll 2,0-2,5m
IR
22
Kit for 3 coll 2,0-2,5m
IR
2
Kit for 4 coll 2,0-2,5m
IR
2
Kit for 5 coll 2,0-2,5m
IR
2
Kit for 6 coll 2,0-2,5m
IR
2
Kit for 7 coll 2,0-2,5m
IR
2
Kit for 8 coll 2,0-2,5m
IR
2
Kit for 9 coll 2,0-2,5m
IR
2
Kit for 10 coll 2,0-2,5m
IR
2
ATTENTION: Check the ability of the roof structure to withstand the load of the solar collector in operation, with the builder of the building
or contact the local authorities.
H
3
m
3,5
m
5
m
7
m
Mass in kg, distributed on the
various bearing points, to secure a
collector from wind lifting
135
255
355
1
1
1
1
1
1
1
2
2
1
3
3
1
4
4
1
5
5
1
6
6
1
7
7
1
8
8
Collectors are connected with each other so that the heat transfer
fluid crosses them in parallel. Connection with the heat exchange
circuit towards the exchanger must be made on the side of probe
socket (T) of the last collector of the series (see Fig. 9). The posi-
tioning of the socket on the collector allows the maximum transfer
of heat accumulated in the panels.
It is also possible to connect more than one line of solar collectors,
both in series (provided that the number of solar collectors does
not exceed 10 units per each series) and in parallel. In any case
the circuit must be hydraulically balanced (see Fig. 10, Fig. 11 as
example diagrams).
12 PREPARATION OF THE HEAT TRANSFER FLUID
Mix the glycol with water (preferably demineralized).
Strictly follow the manufacturer's instructions regarding the per-
centage of glycol to be used with respect to the minimum tempera-
ture at which you want to preserve the solar circuit.
This information can be found on the glycol bottle purchased.
For correct mixing, refer to the following table which shows the
quantity of total fluid (glycol+water) that must be loaded for each
type of installation.
N°
Total content of liquid in
collectors
2,0 m
collector (l)
2
1
1,38
2
2,76
3
4,14
4
5,52
5
6,9
6
8,28
7
9,66
8
11,04
9
12,42
10
13,8
2,0m
- 2,5 m
Collectors
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
15
ENGLISH
Total content of liquid in
2,5 m
collector (l)
2
1,55
3,1
4,65
6,2
7,75
9,3
10,85
12,4
13,95
15,5
1
1
1
1
1
1
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