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The Lennox 64J12 Collector Box Assembly (Model LB-66579C) is the critical OEM replacement cold end collector box for legacy high-efficiency furnaces
Key Benefits for HVACR Contractors: Precision Thermal Control: Delivers infinite flame adjustment to maintain consistent discharge air temperatures in process heating and stabilized area heating
By eliminating common failure points found in older metal-cased units
A faulty sensor typically triggers a "Flue Sensor Open" or "Flue Sensor Shorted" lockout on the display
this thermally protected motor offers a direct-fit solution for 48HCD and 48KCD series units
Resideo VU53N1026 Valve 328140-751 The Lennox 64J12 Collector BoxThe Resideo VU53N1026 Valve is a professional grade two way fan coil valve engineered for high pressure commercial HVAC applications, specifically within terminal reheat coils, convectors, and fan coil units. This 1" NPT fan coil valve features a robust brass body with a normally closed configuration, providing a flow capacity of 8 Cv and a maximum safe operating pressure of 300 psi. Designed for versatility, it manages chilled water or hot water