Swapping Cummins RSS200-6869 with Cummins Rss200-6635

[Tomstrongisland]

Hey all

Have Cummins 20gsbb gen that was previously wired to 6869 ats. Had to swap to 6635 and install main disconnect due to housing of 6869 completely rusting away. Followed all wiring diagrams. Can’t get ats to throw on utility loss. Can manually start with utility off and it will transfer. Will transfer back with restoration of utility. Anyone have the cheat sheet diagrams for this particular combo?

Thanks.

 

[Birken Vogt]

Manual

https://onan.xmsi.net/962-0620%20Onan%20RSS100%20RSS200%20Transfer%20Switch%20Installation%20manual%20(06-2009).pdf

Looks like most switches of this type, EL1-EL2 via relay K1 get connected to B1-B2 on the mechanism to make it transfer to generator. Trace it back and find out where the malfunction comes in