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and all necessary O-rings for the stem
allowing for a more compact design and customizable fail-safe direction (Normally Open or Normally Closed) via a switch
Technicians typically diagnose a faulty 17F26 when there is visible water leakage at the base of the secondary heat exchanger or when a "Pressure Switch Stuck Open" fault code persists despite a functional inducer and clear vent piping
These units are critical for maintaining system uptime and protecting Size 00-2 motor starters from thermal degradation
Siemens Building Technology QPA2062 Sensor 318172-701 and all necessary O-rings forThe Siemens Building Technology QPA2062 Sensor is a multi parameter room air quality sensor engineered for high demand HVAC and building automation systems. Built for professional grade reliability, this unit integrates a Non Dispersive Infrared (NDIR) CO2 gas sensor with active temperature and relative humidity monitoring to facilitate precision Demand Controlled Ventilation (DCV). The 0 2000 ppm CO2 measuring range provides a stable 0 10V or 4 20mA
US$ 44.95
US$ 1000.00
US$ 1100.00
US$ 164.95
US$ 1150.00
