Cummins/Onan — Parallel Operation
Installation · Parallel outlets
From a Cummins/Onan owner's manual covering: Onan P4500iDF, P4500iDF, P4500iDF Inverter. Check it applies to your exact model before use.
Applies to: Cummins/Onan P4500iDF, Cummins/Onan P4500iDF Inverter
Before you start
- NEVER connect or disconnect the parallel cord leads when a generator is running.
- DO NOT connect two red leads or two black leads into the same generator.
- DO NOT use ECO MODE when in parallel operation.
Procedure
- Make sure both generator battery switches and ECO MODE switches are in the OFF position.
- Connect the black and red parallel cable leads to the black parallel ports; black lead to left port, red lead to right port.
- Connect the green ground lead to the ground terminal on each generator and tighten the nut.
- Start one generator and wait until the OUTPUT READY LED illuminates.
- Start the second generator and wait until its OUTPUT READY LED illuminates before connecting a load.
- Connect additional loads as described in the Power Management section.
- Unplug all loads before stopping the generators.
Specs & values
- Used with Cummins 50A parallel kit A058M290 Amazon eBay $95.21 (sold separately)
Full service-parts list: Cummins/Onan P4500iDF →, Cummins/Onan P4500iDF Inverter →
Source: Cummins/Onan 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.