Siemens Building Technology QFM2100 Sensor Els PW 29614 single-pole definite purpose contactor designed

single-pole definite purpose contactor designed for precise electrical switching in furnace and air conditioning applications

This furnace control board replacement supports 120V accessories such as humidifiers and air cleaners while providing a 7-segment LED display for real-time monitoring of flame current and fault codes

Standard McDonnell & Miller probe rods are often field-cut by technicians to match the specific low-water cutoff point of the vessel

If installing the damper vertically

contractors should verify local lead-free compliance codes as specialized "LF" lead-free models are typically required for those applications

Siemens Building Technology QFM2100 Sensor Els PW 29614 single-pole definite purpose contactor designedThe Siemens Building Technology QFM2100 Sensor is a professional grade duct relative humidity sensor designed for accurate integration into commercial HVAC and ventilation systems. Engineered for high stability monitoring, this unit provides a precise 0 10Vdc output signal corresponding to 0 100% relative humidity. It serves as an essential component for building automation systems (BAS), ensuring optimal indoor air quality and moisture control. As a