WARNING, HIGH VOLTAGE IS PRESENT IN THIS AREA AND THE POSSIBILITY OF ELECTRICUTION EXISTS, EXTREME CAUTION SHOULD BE USED, AND WE RECOMMEND A PROPERLY TRAINED TECHNICIAN TO PERFORM ANY ELECTRICAL REPAIRS OR ADJUSTMENTS.
All FG Wilson generators are shipped with the customers requested voltage pre-adjusted before leaving the warehouse yet sometimes a minor voltage adjustment is required once the unit has been installed and initially started. These adjustments are usually necessary in order to “match” the nominal utility voltage and will help in avoiding transfer issues due to the voltage falling out of the transfer switch parameters.
An example would be a utility nominal voltage of 240 vac and the generator output voltage at 220 vac, depending on the transfer switch settings, this could cause the transfer switch to not accept the generator as a good source due to it being out of the voltage pick-up parameter. The fix is simply to adjust the generator voltage up to 240 vac to match system voltage and the transfer will now proceed normally.
The voltage adjustments are done by rotating a “pot” or adjustment screw on the voltage regulator while the unit is running. Adjustments should be made to the voltage pot only and should not exceed +/- 5%.
Ralf Heredia
FGW Latin America & Caribbean 
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