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

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

This assembly is engineered to restore optimal ventilation

this component provides the isolation and thermal stability necessary for long-term operational readiness

Reliable Flow Control: Ensures a consistent 1/4" NPT water supply connection to maintain accurate tank levels

Resideo ZD24X16TZ Damper 318423-701 the Q314A6102 and the "U"The 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