Generac Power Systems 20 kW Synergy - Page 21

Operation
Owner’s Manual for 60 Hz Synergy™ Generators 17
Figure 3-9. Manual Transfer Switch Operation
002565
A
MANUAL
• Will not transfer to generator if utility is present.
• Will transfer to generator if utility fails (below 65% of nominal for five consecutive seconds) after warm-up.
• Will transfer back when utility returns for 15 consecutive seconds. The engine will continue to run until
removed from the MANUAL mode.
AUTO
• Will start and run if utility fails for five consecutive seconds (factory default).
• Will start an engine warm-up timer.
–Will not transfer if utility subsequently returns.
–Will transfer to generator if utility is not present.
• Will transfer to utility once utility returns (above 80% of nominal) for 15 seconds.
• Will not transfer to utility unless utility returns. The generator will shut down if the OFF button is pressed or a
shutdown alarm is present.
• Once utility power is returned, the generator will shut down after one minute cool-down time.
EXERCISE
• Will not exercise if generator is already running in either AUTO or MANUAL mode.
• During exercise, the controller will only transfer if utility fails during exercise for 10 seconds, and will switch to
AUTO.