Generac Power Systems PowerPact 6561 Installation Notes page 72


DANGER - Proceed with Caution, Generator Output Voltage is now being delivered to the transfer
switch terminals. The transfer switch is now electrically HOT. Contact with live terminals results in
extremely dangerous and possibly fatal electrical shock.

Turn on electrical loads to the full rated wattage/amperage of the generator.

DO NOT OVERLOAD.
 With the maximum rated load applied, check voltage and frequency across transfer switch terminals
E1 and E2.
 Voltage should be greater than 230VAC and frequency should be greater than 59Hz.
 Also verify the gas pressure remains within acceptable parameters.
 Let the generator run the rated load at least 30 minutes.
 With unit running, listen for unusual noises, vibration, overheating, etc.., that might indicate a
problem.
 When checkout under load is complete, turn the generator's main circuit breaker to its OFF position.
 Let the generator run at no load for several minutes to cool down. Then shut it down by putting it in
the OFF mode.
Checking Automatic Operation

Ensure the generator is in its OFF mode.
RTG, RTSR/P/C, RTSY/T/W, RTSB, & RTSI switches

Install the front cover of the transfer switch.

Turn on the Utility power supply to the transfer switch.

Note: the transfer switch will transfer back to utility position.
GenReady
 Verify the Utility Service Disconnect 200A and the 125A Utility lower panel feed circuit breakers are in
the ON position.

Verify the transfer mechanism is in the Utility position.
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