All,
A coalition of HVAC manufacturers and home builders has won an appeal to remove certain requirements in the 2020 National Electric Code (NEC) that were causing air conditioner units to trip due to an incompatibility of equipment.
The appeal was led by Air Conditioning Contractors of America, Leading Builders of America and the Air-Conditioning, Heating, and Refrigeration Institute, and was strongly supported by NAHB.
Section 210.8(F) of the 2020 NEC (which requires a ground-fault circuit interrupter (GFCI) breaker to be installed on connections between a new home's electrical system and the air conditioning condenser unit – the part of the HVAC system that resides outside) was adopted in Texas.
After Texas adopted the 2020 NEC in full, home owners and builders in the state immediately began reporting issues with the GFCI breakers tripping when the air conditioner ran, sometimes multiple times each day, as the GFCI breakers are incompatible with HVAC units.
GFCI breakers are specialized devices that prevent electrocutions in homes by quickly tripping the circuit when a potential electrocution event is detected. But before the 2020 NEC, GFCIs were not required for condenser connections, and as such, HVAC manufacturers had not engineered their products for such a connection.
Late last month, the National Fire Protection Association (NFPA) – publishers of the NEC – agreed that the requirements were not compatible with current HVAC equipment and halted the GFCI mandate until Sept. 1, 2026, to give manufacturers time to engineer a solution.
SNHBA would like to applaud the LBA and other coalition members, including NAHB, for their efforts on this important issue!
