the 1980 series snap-fit design is purpose-built to fit into burners without adapters

we strongly recommend verifying the specific Lennox part number in your unit’s service manual before installation

42-42728-02

closing when the negative pressure reaches the specified set point

Copeland 971-0329-11 Protector Relay the 1980 series snap-fit designThe Copeland 971 0329 11 Protector Relay is a critical compressor motor protection component designed for demanding refrigeration and air conditioning applications. Engineered as a high reliability internal motor protector, this relay monitors winding temperatures to prevent catastrophic failure from over current or thermal overload conditions. As an OEM Copeland replacement part, it ensures seamless integration with compatible Copeland hermetic