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The high-limit safety is fixed at 170°F and requires a manual reset
making it an ideal choice for maintaining thermal stability in fan coil units
it prevents inefficient heat pump operation during extreme cold and ensures the secondary heat source engages only when necessary
For technicians performing furnace pressure switch troubleshooting
For contractors managing airflow proving tasks
Lochinvar & A.O. Smith 100233518 Sensor Freon The high-limit safety is fixedThe Lochinvar & A. O. Smith 100233518 Sensor is a critical precision engineered component for hydronic monitoring, specifically designed as an Inlet Outlet Bypass Sensor. Functioning as a direct replacement for the Lochinvar TST2409, this 1 2" NPT temperature sensor provides real time thermal data to the control board, ensuring the system maintains a precise differential between the supply and return lines. In high efficiency condensing boilers and
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