Key Benefits Optimized Fan Cycling: Precisely maintains head pressure by cycling condenser fans at 170/250 PSIG setpoints

ensuring that any flame rollout event is professionally diagnosed before the system is placed back into operation

ensuring a perfect physical and electrical match for specific Lennox models

The 04-01623-00 measures 3-1/2 inches in diameter

ensuring the safe and efficient discharge of combustion gases from the heat exchanger to the venting system

TB Woods 4J-3/4 Coupler Flange Key Benefits Optimized Fan Cycling:The TB Woods 4J 3 4 Coupler Flange is a Type J Sure Flex Plus power transmission component engineered for heavy duty industrial and HVAC applications. Manufactured from high strength sintered carbon steel using a powdered metal process, this Size 4 flange provides exceptional dimensional accuracy and uniform material properties. It features a precision 3 4" bore with a standard 3 16" x 3 32" keyseat and a primary setscrew positioned over the keyway