Forum Discussion
pianotuna
Aug 06, 2016Nomad III
CA Traveller,
I just deliberately shut off the roof air. Then I turned on the water heater. I waited 3 minutes and when I turned on the air voltage went up by about 4 volts from 108. Then I shut off the water heater and voltage jumped up 8 to top out at 120 volts. After a few seconds the boost dropped out and voltage is now 108
Maximum wattage was 3165 and input voltage to the SB was 107.7. That works out to 29.83 amps. As my cords are rated to only 30 amps that's about 6 amps higher than I wish to run them. (80% of 30 is 24 amps).
But at least I'll be able to run the fridge and air conditioner on 120 volts instead of having to trick the load support on the Magnum into doing voltage support and setting the fridge to propane. BTW for all these tests the batteries were 100% state of charge.
I just deliberately shut off the roof air. Then I turned on the water heater. I waited 3 minutes and when I turned on the air voltage went up by about 4 volts from 108. Then I shut off the water heater and voltage jumped up 8 to top out at 120 volts. After a few seconds the boost dropped out and voltage is now 108
Maximum wattage was 3165 and input voltage to the SB was 107.7. That works out to 29.83 amps. As my cords are rated to only 30 amps that's about 6 amps higher than I wish to run them. (80% of 30 is 24 amps).
But at least I'll be able to run the fridge and air conditioner on 120 volts instead of having to trick the load support on the Magnum into doing voltage support and setting the fridge to propane. BTW for all these tests the batteries were 100% state of charge.
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