PANEL HANDBOOK aH72 SK
V 6.0
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4.1
System design considerations
Maximum operating pressure:
Although the maximum test pressure for the modules is 10 bar, a maximum system pressure of 3 bar
is recommended.
A qualified installer must install the system in accordance with all requirements defined in the project,
building regulations and codes, health and safety legislation and any local regulations in force at that
time.
4.2
Temperature sensor
The temperature sensors must always be placed in the hot flow (top panel outlet) of the panel bank.
The way the sensor is placed is by inserting the thermowell inside the panel. In figure 11 you can see
that the thermowell for the temperature sensor is placed inside the manifold.
It will be necessary to have temperature sensors and control capacity separately and for each
orientation of hybrid panels.
For installations with all hybrid panels in the same orientation, the placement of a temperature sensor
in one of the row will be sufficient.
4.3
Air outlet
Each panel row will have a purge system to allow air to escape from the circuit, placing it at the highest
point of the row. In figure 11 you can see the bleeding valve at the top of the cross.
4.4
Safety valve
Each group of panels must have a safety valve and a drain valve at the bottom of the bench. The setting
of the safety valves must be calculated in the installation project, or by the qualified installer, and
according to the current regulations.
4.5
Drain valve
Each group of panels will have a drain valve that guarantees the emptying of only one row, if necessary,
without having to empty the whole solar installation.