Siemens Building Technology QPA2284.FWSC Sensor R-407A If the load engages via

If the load engages via the button but not via the thermostat or controller signal

Simplified Installation: Standard 1-inch FNPT inlet and outlet connections offer direct compatibility with existing commercial plumbing headers

Replacing a failing OEM Lennox 36K20 prevents heat exchanger overheating and ensures your system maintains the static pressure required for effective climate control

Full Installation Hardware: Comes with igniter brackets

Siemens Building Technology QPA2284.FWSC Sensor R-407A If the load engages viaThe Siemens QPA2284. FWSC is a high performance multi sensor room unit engineered specifically for integration with Siemens Terminal Equipment Controllers (TEC). This full featured HMI device streamlines indoor air quality management by simultaneously monitoring CO2 concentration, relative humidity, and room temperature. Designed for professional HVAC installations, it features a 0 2000 PPM CO2 range utilizing NDIR (Non Dispersive Infrared) technology