Generac Power Systems PowerPact 6561 Installation Notes page 71

RTG, RTSR/P/C, RTSY/T/W, & RTSJ
 Measure across ATS terminal lugs E1 and E2. Also check E1 to Neutral and E2 to Neutral.
GenReady
 Measure across Generator Supply Switch terminals.
 Also check each switch terminal to Neutral.
 a - Frequency - 60-62Hz
 b - Terminals E1 to E2 - 240-246VAC
 c - Terminals E1 to Neutral - 120-123VAC
 d - Terminals E2 to Neutral - 120-123VAC
 Set the generator's main circuit breaker (CB1) to its OFF or Open position.

Set the generator to the OFF mode to shut down the Generator.
All Switches
 Do NOT proceed until generator AC output voltage and frequency are correct and within the stated
limits.
 If the no-load voltage is correct but the no-load frequency is incorrect, the engine-governed speed
may require adjustment.
 If no-load frequency is correct but voltage is not, the voltage regulator may require adjustment.
Generator Check Under Load
 Set the generator's main circuit breaker to its OFF position.
RTG, RTSR/P/C, RTSY/T/W,RTSB, RTSI, and RTSJ switches
 Set the Utility Service Disconnect circuit breaker to the OFF or Open position.
GenReady
 Set the 125A Lower Panel Feed Circuit breaker to the OFF or Open position.
Generator Check under Load – All Switches

Manually actuate the transfer switch main contacts to their generator (Standby) position.

Set the generator to manual mode. The generator should crank and start.

Let the generator stabilize and warm up for at least five minutes.

Turn the generators main circuit breaker to its ON or Closed position.

The generator now powers all load circuits.
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