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15-ton Allied commercial a/c

I am working on a 15-ton Allied commercial a/c unit. This unit has a Wagner three-phase line voltage monitor. When the emergency generator comes on, the split-second amp spike between clean power and generator power trips the monitor. Is there a setting on this monitor that I can adjust to correct this problem?

P.S. There are three other Allied units with the same monitor that are connected to separate emergency generators, and the amp spike does not trip those monitors.

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  • knobloch-air Aug 05, 2009

    It does not have an auto reset option, I have to manually reset the unit each time the generator comes on and goes off. I'm not sure how to get to the line differential settings. Your answer did help me a lot and I sure do thank you!

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It may not be the start of the generator but the voltage drop. most monitors have a low voltage cut out and a line differential setting have you compared the settings with this monitor, does it have an auto reset option to turn on

Posted on Aug 04, 2009

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