Key Benefits for Technicians Precise Thermal Cutoff: Calibrated to melt at 121°C (250°F) for accurate protection against furnace cabinet overheating

This board integrates control for both the combustion air blower (inducer) and the circulating air blower

the Q314A6102 and the "U" (Universal/Tradeline) suffix version are functionally identical and serve as direct replacements for one another

systems often face pressure switch tripping or localized corrosion due to leakage

It is designed for single-stage air handlers in the Nordyne B5

Resideo ZD24X16TZ Damper 318423-701 Key Benefits for Technicians PreciseThe Resideo ZD24X16TZ is a professional grade rectangular zone damper designed for high performance residential and light commercial forced air systems. Built with an extruded aluminum frame and parallel blades, this 24x16 damper ensures low leakage and maximum structural integrity under typical static pressures. This power closed spring return open model operates as a fail safe component, remaining open during power loss to prevent equipment high