UTS10BI Secondary Power Source and Circuit 1

[Anonymous user]

My electrician has wired my UTS10BI and I am now going through the circuit setup. I plan to purchase a Honda inverter (model yet to be determined) for my Backup1 power source. I presently have a Honda EU2000i that I will use as my Backup2 power source. Ultimately, I would only use Backup2 to power just my furnace overnight in order to save fuel. My question/problem is this:

My furnace is presently wired to UTS circuit 1. The manual says that circuit 1 may not be set up for UPS or EITHER backup power source. It that true for any power source to Backup2 or just a UPS? I have the sinking feeling that I will have to move the furnace to another UTS circuit so that either Backup1 or Backup2 can power it.

Your insight would be appreciated.

[BillP]

Circuit 1 is what provides power to the convenience outlet on the face of the UTS. The generator can be the only Back up source for Circuit 1 in order to power the typical UPS (or the Honda inverter in your case).

in short, you are correct. You will have to move the furnace to a different circuit and set that circuit for UPS only which will then be ultimately your inverter.

[Anonymous user]

Thanks for your reply. Although I don't really understand why Backup2 cannot both power circuit 1 and the power outlet on the face of the UTS, I accept that it's a circuitry issue that cannot be changed. I will put the furnace on another UTS circuit.

Once I move the furnace to another circuit, I do wonder why that circuit cannot be set to EITHER, instead of UPS only, as you've advised.

[Anonymous user · Accepted solution]

The design idea is that the connivence outlet (circuit 1) also charges the UPS (backup2).  When the UTS is running on backup2, which in most cases would be a UPS, the UPS can not supply power to circuit 1 and also at the same time charge itself from circuit 1.