Kohler — Connection Procedure (Field Connections)
Installation · Field-connection terminal block
From a Kohler service manual covering: 12RES, 12RESL/12RESM1, 18RES. Check it applies to your exact model before use.
Applies to: Kohler 12RES, Kohler 18RES
Before you start
- Hazardous voltage. Backfeed to the utility system can cause property damage, severe injury, or death. Install an automatic transfer switch.
- Grounding electrical equipment. Hazardous voltage can cause severe injury or death.
Procedure
- 12RESL: Remove the cover from the electrical connection access area.
- Drill holes for conduit fittings as described for each model; use separate conduit for AC wiring and low-voltage engine start leads.
- Connect the leads from the transfer switch emergency source lugs to the L1 and L2 connections on the generator set terminal block.
- Connect the neutral (L0) and ground (GRD) leads from the ATS and the main panel to the corresponding connection points.
- Connect 120 VAC utility power to the terminals marked Utility Power (must be backed-up by the generator set).
- Connect the engine start leads from the automatic transfer switch or remote start switch to terminals 3 and 4 on the terminal block.
- 12RESL/12RESM1: Replace the cover over the electrical connection access area.
Specs & values
- Engine start leads land on terminals 3 and 4
- Load leads land on L1 and L2
- Neutral L0, ground GRD
Full service-parts list: Kohler 12RES →, Kohler 18RES →
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.