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Update on GFCI Nuisance Trips on Outdoor HVAC Equipment Related to 2020 NEC

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Informal testing results from Trane show GFCI outlets or disconnects severely affect variable capacity equipment (ECM / brushless rotor motors / inverter technology). Single speed and two speed equipment has proven to be less susceptible to nuisance trips. This is good news, but much more work needs to be done.

David Bixby

Posted In: Aside, Technology

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