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supporting R22
Advanced Compressor Safety: Provides integrated motor compressor start and protection (MCSP) to prevent electrical failure and extend component life
Robust Construction: Plated housings and high-grade silicone diaphragms ensure long-term stability in commercial air pressure monitoring
a technician should use a multimeter to verify the microfarad (MFD) readings at the 'Herm' and 'Fan' terminals relative to 'C'
Siemens Building Technology QFM3100 Sensor 320788-703 supporting R22Professional grade environmental control requires high precision instrumentation, and the Siemens Building Technology QFM3100 Sensor is engineered for exactly those demanding HVACR environments. This duct relative humidity sensor delivers a highly accurate 0 10Vdc output signal across the full 0 100% RH spectrum, ensuring stable performance in ventilation and air conditioning plants. As the direct replacement for HD2XVSX, the QFM3100 integrates
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