Generac — Transfer Switch Installation Procedure

Installation

From a Generac service manual — check it applies to your exact model before use.

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Procedure

1. Mount transfer switch on left or right side of main load center using 1/2 to 1-1/2 in knockouts
2. Install bonding screw and Service Disconnect label if Service Entrance rating desired
3. Remove covers from load center and transfer switch, cut and fit conduit between enclosures with locknuts
4. Mark and drill wall anchor holes, mount switch to wall
5. Install new 60A or 100A 2-pole UTILITY MAIN breaker in main load center
6. Connect RED/BLACK wire between transfer switch UTILITY breaker and new load center UTILITY breaker
7. Connect WHITE wire to neutral bar in both enclosures
8. Connect GREEN wire to ground bar (or neutral bar if no separate ground bar) in both enclosures, tighten to marked values
9. Remove a knockout on transfer switch for generator feed, run conduit to Power Inlet Box/generator
10. Connect RED/BLACK to GEN MAIN breaker, WHITE to neutral bar, GREEN to ground bar, tighten to marked values
11. Reinstall transfer switch and load center covers
12. Turn ON main load center breaker and all circuit breakers, turn ON UTIL MAIN breaker in transfer switch, verify power restored

Source: Generac service 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.

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