This is the message i got from onan
Cummins Sales and Service has a store in Chattanooga (423-629-1447). You can contact the parts department and request the EC30 control. Part number for the EC30 is 018-02030. This is a hardwired control that you or your installer will have to wire into the components controlled by the EC30. You will need a wiring harness also (to the genset) and that would be a 044-00074 for the 2.8RVQG unit or a 044-00075 for the 4.0 to 7.0 RVQG units.
We expect by years end to have a wireless unit available and that would save labor hours on installation. I do not have any information on the new unit only the expected launch time frame.
Should you have additional question please feel free to contact me.
Onan Consumer Manager
Cummins Sales and Service
5910 E Hillsborough Ave
Tampa, FL 33610