I happened to turn off the factory disconnect switch to reduce parsitic draw on the batteries since night temps were going to drop into the low 20s and teens last week for a few days and I knew the battery heaters (LiFePO4s) would be coming on at night. On the 110V sub-panel, I had already switched off the residential fridge CB and the GFCI CB when winterizing. Since I have factory solar and am connected to shore power in my garage, I figured the batteries would be topped off each day as usual by the combination shore power at night and solar during the day. But after a couple of days, I brought the BMV app up on my phone and the SOC was 60% with about a 4Amp charge rate (guessing from Solar). I was under the impression that the disconnect switch only applied to 12V but my 110V PD9160 charger pendant blinked at absorption charge rates. Despite being connected to shore power, I could not get the PD into bulk mode until I turned the disconnect back on. Other than swapping the WFCO to the PD, all connections are factory so I'm a little confused why the 110V outlets on the back of the fuse panel where the converter/charger plugs into apparently went dark when the factory disconnect switch was off.
So I re-ran this test tonight well after dark to eliminate solar from the picture. With shore power disconnected, the disconnect switch off and same CBs off as above, the PD pendant was blinking as it would during absorption rates though the BMV read a draw of .17Amps (perhaps a draw from the inverter which I did not disconnect). I then plugged in the 110V shore power cord and expected the PD to start charging at bulk rate to get up to 14.6V then drop back. Nope. BMV continued to read 0.17Amps and PD pendant blinking regularly. Turned disconnect switch on and PD immediately kicked into bulk charge and BMV up to 35Amps with Pendant LED on solid.
Guess my question is does the factory disconnect impact the 110V circuit feeding the charge controller? Manual doesn't clarify but that would seem like an odd connection to me.
So I re-ran this test tonight well after dark to eliminate solar from the picture. With shore power disconnected, the disconnect switch off and same CBs off as above, the PD pendant was blinking as it would during absorption rates though the BMV read a draw of .17Amps (perhaps a draw from the inverter which I did not disconnect). I then plugged in the 110V shore power cord and expected the PD to start charging at bulk rate to get up to 14.6V then drop back. Nope. BMV continued to read 0.17Amps and PD pendant blinking regularly. Turned disconnect switch on and PD immediately kicked into bulk charge and BMV up to 35Amps with Pendant LED on solid.
Guess my question is does the factory disconnect impact the 110V circuit feeding the charge controller? Manual doesn't clarify but that would seem like an odd connection to me.
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