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The aluminum die-cast body ensures corrosion resistance in demanding environments
Common Questions & Technical Support What is the primary function of the Ranco O18-100
Note that the closing point is fixed at approximately 3 to 5°F below the set opening temperature
It is highly recommended to match the 28-degree pitch exactly
F close points prevent heat exchanger cracking and ensure localized safety
Lochinvar & A.O. Smith 100277755 Pressure Switch 321142-301 The aluminum die-cast body ensuresThe Lochinvar & A. O. Smith 100277755 Pressure Switch is a mission critical component engineered for precise atmospheric monitoring in high efficiency boilers and water heaters. Calibrated to a . 95" WC (Water Column) set point, this OEM replacement pressure switch ensures the inducer fan is generating the correct static pressure before allowing the ignition sequence to proceed. As a veteran grade HVAC induction switch, it is designed to prevent
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