Kohler — AC Power Connections
Installation · Electrical wiring
From a Kohler service manual covering: RXT-JFNC-0100A, RXT-JFNC-0200A, RXT-JFNC-0400. Check it applies to your exact model before use.
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Before you start
- Hazardous voltage: disconnect all power sources before opening the enclosure
- To prevent electrical shock, deenergize the normal power source before making any line or auxiliary connections
Procedure
- Determine cable size from Figure 2-8 or the ADV drawings in Section 6
- Use separate conduit for AC power wiring and low-voltage DC/control/communication wiring; use watertight conduit hubs for outdoor use
- Clean cables with a wire brush to remove surface oxides before connecting to terminals
- Apply joint compound to connections of any aluminum conductors
- Connect utility power to Normal, generator set to Emergency, per the connection diagrams on the enclosure door and Section 6 wiring diagrams
- Single-phase models: connect to A and C; three-phase models: follow phase markings A, B, C, and N
- Service entrance models: connect the utility source to the lugs on the normal source disconnect circuit breakers
- Verify all connections match drawings, then tighten cable lug connections to the torque values shown on the switch label
- Wipe off excess joint compound after tightening the terminal lugs
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Kohler 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.