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

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

to maintain system reliability and compliance during propane operation

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

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

Resideo ZD24X16TZ Damper 318423-701 this component provides the isolationThe 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