Variant menu: System Definition > Solar Loop with Air Collectors > Fan
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Go to the Fan page. Define the volume flow rate of the fan, either as an absolute value per row or as a specific value in relation to the gross collector surface area (normally 30 m³/h, maximum flow of the air collector). The total volume flow rate is calculated by multiplying with the number of arrays as given on the page Parameters.
In case, the nominal volume flow is higher than the maximum volume flow of the air collectors combined, you’ll get a warning.
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Specify whether the fan is operated with photovoltaic power or not. If not, Nominal Power section appears: The recommended nominal power of the fan, the Guide Value, is calculated on the basis of the air collector, the volume flow rate of the fan, and the number of collectors per row. Enter the value for the nominal power used.