Battery low

Automatic standby generator installation questions. Wiring, placement, code requirements, etc.
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New Member
New Member
Posts: 4
Joined: Fri May 31, 2019 8:46 pm

Mon Jun 03, 2019 11:33 pm

If generator off and I test N1 and N2 utility sensing should I read 240volts across I have 120volt on T1
Will there always be 240volt on utility sensing? Can u explain how it starts when utility power goes out
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Posts: 412
Joined: Sat Aug 04, 2018 8:46 pm
Location: Clawson, MI

Tue Jun 04, 2019 9:11 am

Yes, at all times when the utility power is on, N1 and N2 will read 240V (or whatever the utility power is coming in)

T1 is a 120V battery charging circuit that will always have power, regardless if the generator is powering the home or the utility is. It's connected to the load side of the transfer switch.

When the controller senses a loss of power on either N1, N2 or both, the controller calls for the unit to start and begin the warmup timer and then transfer.
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