Lochinvar & A.O. Smith 100277755 Pressure Switch 321142-301 Note that the closing point

Note that the closing point is fixed at approximately 3 to 5°F below the set opening temperature

Why should I use a 96" lead instead of a standard length

The forged brass body and nickel-plated stem are specifically designed to resist scaling and corrosion in closed-loop systems

The aluminum die-cast body ensures corrosion resistance in demanding environments

It is highly recommended to match the 28-degree pitch exactly

Lochinvar & A.O. Smith 100277755 Pressure Switch 321142-301 Note that the closing pointThe 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