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 C. Bixby has been active in HVAC industry codes and standards for 35 years and is currently secretary for the ACCA Codes Committee.
Latest posts by David Bixby (see all)
- Update on Mechanical Code Change Hearings + New Energy Code Proposals - October 20, 2021
- BREAKING: NFPA to Issue Delay of NEC GFCI Requirement for Outdoor HVAC – Forms Task Group - September 17, 2021
- Where Have All the Colors Gone? Refrigerant Cylinders Change Color - September 15, 2021
Posted In: Aside, Technology
