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Space-Efficient Design: Compact frame size allows for high-density mounting in electrical enclosures
Featuring a robust brass body and reliable EPDM diaphragm
or sluggish response times during pressure changes
Integrated auxiliary switch (SPDT) for precise end-of-stroke feedback and system sequencing
the VM3211 meets ANSI Class IV leakage standards
Lennox 56K85 Control Board 321702-401 Space-Efficient Design: Compact frame sizeThe Lennox 56K85 is a critical Integrated Modular Control (IMC) board designed specifically for managing the secondary gas valve in multi stage heating systems. This OEM Lennox replacement board (part number 56K85) serves as the Gas Vlv #2 control module, ensuring precise sequencing and timing for combustion cycles in heavy duty commercial rooftop units and high capacity furnaces. Built to withstand the thermal stresses of the cabinet environment, the