a critical OEM component engineered for high-performance draft induction

Built for the rigors of high-cycle heating seasons

enhancing system efficiency and long-term stability in demanding mechanical applications

ensuring zero-clearance issues during field installation

Critical Diagnostics: Integrated digital display provides real-time feedback on system status and temperature set points

Lennox 39H98 Relay 318518-761 a critical OEM component engineeredThe Lennox 39H98 Relay is an essential primary control component designed for reliable low voltage switching in residential and light commercial HVAC equipment. This DPDT 24V Relay (Double Pole Double Throw) features a 24VAC coil, making it a versatile drop in replacement for managing blower motors, fan cycles, and auxiliary heat circuits. Engineered for HVAC control circuit repair, the 39H98 manages power distribution across two separate circuits