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reducing ongoing mechanical maintenance
but it requires a NEMA 4X weather shield for direct outdoor exposure
and P-Series systems
Precision Accuracy: Features a high-quality 10K Ohm NTC thermistor for stable resistance readings and reliable outdoor temperature sensing
the VT2223 is the zone valve body only
McDonnell & Miller 157S-P Controller THPU32HP7Y reducing ongoing mechanical maintenanceThe McDonnell & Miller 157S P Controller (Part #175802) is a precision engineered combination low water cut off and pump controller designed for commercial and industrial steam boilers of any steaming capacity. As the direct replacement for the legacy McDonnell & Miller 157S, this unit integrates a manual reset mechanism to ensure rigorous safety protocols in the event of a low water condition. Featuring a robust Monel bellows for superior corrosion