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Automatic Standby Generator Owner’s Manual 13
3.5.1.3 — Load Transfer
The transfer of load when the generator is running is dependent upon the operating mode:
3.6 — Turning the Generator Off When Operating Under Load
NOTE: Important! To turn the generator off during prolonged utility outages to perform maintenance or conserve fuel, follow these sim-
ple, but important steps:
To turn the generator OFF (while running in AUTO and online):
1. Turn OFF (or OPEN) the main Utility disconnect.
2. Turn OFF (or OPEN) the Main Line Circuit Breaker (MLCB) on the generator.
3. Wait for 1 minute to allow the generator to cool. Turn the generator OFF.
To turn the generator back ON:
1. Put the generator back into AUTO and allow to start and warm-up for a few minutes.
2. Turn ON (or CLOSE) the MLCB on the generator.
The system will now be operating in its automatic mode. The main utility disconnect can be turned ON (or CLOSED), but to shut the unit off, this
complete process must be repeated.
3.7 — Manual Transfer Operation
DO NOT attempt to activate the transfer switch manually until all power voltage supplies to
the switch have been completely turned off. Failure to turn off all power voltage supplies may
result in extremely hazardous and possibly fatal electrical shock.
Prior to automatic operation, manually exercise the transfer switch to verify that there is no interference with proper operation of the mechanism.
Manual operation of the transfer switch is required if electronic operation should fail.
MANUAL
• Will not transfer to generator if utility is present.
• Will transfer to generator if utility fails (below 65% of nominal for 10 consecutive seconds).
• 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 (below 65% of nominal for 5 consecutive seconds).
• Will start a 6 second engine warm-up timer.
• Will not transfer if utility subsequently returns.
• Will transfer to generator if utility is not present.
• Will transfer back to utility once utility returns (above 80% of nominal) for 15 seconds.
• Will not transfer back 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 1 minute cool-down time.
EXERCISE
• Will not exercise if generator is already running in either AUTO or MANUAL mode.
• During exercise, the control panel will only transfer if utility fails during exercise for 6 seconds, and
will operate as normal in AUTO mode.
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