Generac 8.1 GN — Automatic Transfer Operation
Operation · Transfer switch
For the Generac 8.1 GN, from the Generac owner's manual.
Applies to: Generac 8.1 GN, Generac GH-410 engine, Generac GT-530 engine, Generac GT-990 engine, Generac GT-999 engine
Procedure
- Make sure the transfer switch main contacts are set to their UTILITY position.
- Be sure normal UTILITY voltage is available to transfer switch terminal lugs N1 and N2.
- Press the AUTO button on the Control Panel Interface.
- Set the Main Circuit Breaker (Generator Disconnect) to its ON (Closed) position.
Specs & values
- Utility failure: below 65% of nominal
- Utility restored: above 75% nominal
- 10 second line interrupt delay
- 5 second engine warm-up timer
- 15 seconds utility return delay
- 1 minute cool-down time
Full service-parts list: Generac 8.1 GN →
Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.