Installation engineers - general
Where can I buy Fronius inverters?
The Solar Electronics division of Fronius USA LLC sells its units via stocking distributors in the USA.
What points do I need to note at the inverter installation site?
Indoor units should be installed in areas that are neither too dusty nor too damp. Ideally, they should not be installed in lofts as the temperature can be very high in summer. If the temperature is too high, it can restrict the unit’s output.
Indoor units are rated to IP 21.
Despite being IP 45-rated, outdoor units should ideally not be exposed to direct insolation or rain in order to extend the unit’s service life.
How should I dimension the incoming cables to the inverter?
The cables should generally be dimensioned so as to minimize losses. Larger cross-sections are slightly more expensive but they will pay for themselves over the years since the average service life of a PV system is assumed to be 20 years.
Are there any general points to note when called out to a fault in a Fronius IG inverter?
In such situations, the important details are the displayed STATE code and any information about the grid and DC voltages. Please also note down the serial number of the affected unit as you will have to state this when you call the Fronius Service Hotline.
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