Generac Power Systems PowerPact 6561 Installation Notes page 70

Do Not send power to the house before Electrical checks/tests have been performed!
Voltage Checks
 Turn ON the Utility power supply to the transfer switch using the Mainline circuit breaker (Utility
Service Disconnect Breaker).
 The RTG EZ switch may require the 2-pole transfer switch breaker in the main panel to be turned on
also.

DANGER - Proceed with Caution, the transfer switch is now electrically HOT. Contact with live
terminals results in extremely dangerous and possibly fatal electrical shock.
RTG, RTSR/P/C, RTSY/T/W,RTSB, RTSI, and RTSJ switches
 With an accurate AC voltmeter, check for correct voltage. Measure across ATS terminal lugs N1 and
N2. Also check N1 to Neutral and N2 to Neutral.
GenReady
 Measure across the terminals of the Utility voltage sensing circuit breaker. Also check Utility voltage
sensing terminals to Neutral.
All Switches
 When certain that Utility voltage is correct and compatible with the transfer switch ratings, turn OFF
the Utility supply to the transfer switch.
 Set the generator to manual mode. The generator should crank and start.
 Let the generator stabilize and warm up for at least five minutes.
 Set the generator's main circuit breaker (CB1) to its ON or Closed position.
 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.
 With an accurate AC voltmeter and Frequency meter, check the no-load voltage and frequency.
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