I notice a small AC voltage when I measure between neutral and ground on my AC system in the boat, but only when the heat pump AC compressor is running. There is no 3 volts measured when just the AC water pump for the AC heat exchanger is running, only appears when compressor is running.
I have that Heat Pump circuit connected to a square D AFCI GFCI combo breaker, and it does NOT trip off... So is that normal? I know compressor motors generate a back EMF. The fact it does not trip a GFCI-AFCI breaker makes it seem legit. What do you think?
That small 3 volts appears across the entire AC system on the boat, such as on the outlets between neutral and ground when compressor is running.
When compressor is off and just the AC heat exchanger water pump runs, there is no 3 volts.
So I though it odd, and am wondering if other people can comment on this.
Boat is plugged into marina power at the dock. Marina has no ELCI breaker protection. Just those big 30 amp 120 VAC circular plugs.
AC is cooling as expected.
Compressor is your typical Start, Run capacitor design with an associated relay. And uses 120 vac power and draws 13 amps.
I have that Heat Pump circuit connected to a square D AFCI GFCI combo breaker, and it does NOT trip off... So is that normal? I know compressor motors generate a back EMF. The fact it does not trip a GFCI-AFCI breaker makes it seem legit. What do you think?
That small 3 volts appears across the entire AC system on the boat, such as on the outlets between neutral and ground when compressor is running.
When compressor is off and just the AC heat exchanger water pump runs, there is no 3 volts.
So I though it odd, and am wondering if other people can comment on this.
Boat is plugged into marina power at the dock. Marina has no ELCI breaker protection. Just those big 30 amp 120 VAC circular plugs.
AC is cooling as expected.
Compressor is your typical Start, Run capacitor design with an associated relay. And uses 120 vac power and draws 13 amps.
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