GFCI protection on a residential well pump.

My cousin called me last week. One of his relatives is building an addition and they are installing a new well. The Well Co is on site and they hit good water at 130 feet. They are using a submersible with a VFD control so I guess no pressure tank is needed as the pump ramps on the VFD to control the pressure. The house is on a mountain top that gets lightning. The house has lightening protection.

Anyhow, the well company has the pump installed but no wiring yet so they had a generator and were trying to run the pump off the Gen and it wouldn't work they wanted to test the well.

I told him a lightning strike or if they loose power (which they do) and go on their gen they my not play nice with the VFD. i would go with a pressure tank and a switch but that's just me.


The well installers were complaining about their boss who loves the VFDs.
 
My cousin called me last week. One of his relatives is building an addition and they are installing a new well. The Well Co is on site and they hit good water at 130 feet. They are using a submersible with a VFD control so I guess no pressure tank is needed as the pump ramps on the VFD to control the pressure. The house is on a mountain top that gets lightning. The house has lightening protection.

Anyhow, the well company has the pump installed but no wiring yet so they had a generator and were trying to run the pump off the Gen and it wouldn't work they wanted to test the well.

I told him a lightning strike or if they loose power (which they do) and go on their gen they my not play nice with the VFD. i would go with a pressure tank and a switch but that's just me.


The well installers were complaining about their boss who loves the VFDs.

My VFD well has had no problems on my Generac whole house generator.
 
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