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4
A transformer (TRAN) converts the 380 VAC (supplied
by the mains or the first inverter) to 230 VAC, needed
to power the control board, water pump and discharge
valve.
A second inverter (INV SOLAR2) is used to power the
“Biocooler” fan motor. This will receive two signals,
from the control board, to control the speed of rota-
tion.
Figure 2 - monoblock with electrical equipment.
Warning: On the outside of the electrical board door
should contain a warning signal about the existence of
two sources of energy, one of which is photovoltaic.
This signal is important for whoever installs and main-
tains the equipment.
To activate the photovoltaic system there is a se-
lector (S1) that starts the solar inverter.
Figure 3 - control selector of solar photovoltaic system.
•
Turning the selector to “ON”, the solar inverter 1 is activa-
ted, powering the Biocooler with photovoltaic energy.
•
When turning the selector switch to “OFF”, the
solar inverter 1 is deactivated, if it has power from
the network, the Biocooler will be powered by it.
Placed on the side of the electric panel is a cut-off
panel, which controls the mains supply.
Figure 4 - general network power cut-off panel.
Further information is given in annexes A and B, the
electrical diagrams are presented and a description of
the operation of the solar inverter is made.
It is also recommended to consult the operating ma-
nual of the Biocooler.
4 - Installation
To produce maximum energy, photovoltaic panels
should be properly aligned with the sun and clean (wi-
thout accumulation of litter or dust).
Panel performance improves with colder temperatures.
4.1 Location of photovoltaic panels
The photovoltaic panels should be installed in order
to maximize exposure to the sun. If necessary, the fan
panels can be separated.