Reduces Labor Costs: Eliminates the traditional requirement for multiple oil changes or aggressive solvent flushing during burnout cleanup

This switch is calibrated to open the circuit at 650 PSI and close (reset) at 500 PSI

Enhanced Safety: Built-in dual main configuration provides redundant gas shutoff in the event of power loss or pilot failure

making it a staple for high-efficiency zone management

Industrial Speed Rating: Maintains 1550 RPM to provide the necessary CFM for consistent thermal distribution

Siemens Building Technology QFA32SS.FWNN Sensor 320788-702 Reduces Labor Costs: Eliminates theThe Siemens Building Technology QFA32SS. FWNN Sensor is a high performance wall mounted unit engineered for precision environmental monitoring in demanding commercial HVACR applications. Designed for seamless integration with building automation systems, this room unit provides simultaneous measurement of relative humidity and temperature with a 2% accuracy rating. The hardware features a field selectable output architecture, allowing technicians to