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duct-mounted versions are optimized for internal airflow
OEM Resistance Calibration: Ensures the control logic receives the exact voltage signal required for accurate environmental monitoring
Precise Positioning: Includes integrated valve position indication as standard for simplified field verification of valve state
most notably the Mighty Therm (sizes 500-1825) and MegaTherm pool heaters
this current switch is designed exclusively for AC current monitoring within the 50-60 Hz frequency range
Baltimore Aircoil (BAC) 312178 Vibration Switch 322838-754 duct-mounted versions are optimized forThe Baltimore Aircoil (BAC) 312178 Vibration Switch is a critical safety component designed for high performance cooling towers and industrial HVAC systems. As the direct replacement for 311788, this mechanical VCOS vibration switch provides essential protection by detecting excessive mechanical oscillation and initiating an immediate system shutdown to prevent catastrophic motor or fan failure. Engineered for rugged environments, it features a NEMA