Lochinvar & A.O. Smith 100208375 Pressure Switch

For veteran contractors looking for a reliable replacement on Lochinvar and A.O. Smith units, the Lochinvar & A.O. Smith 100208375 Pressure Switch is the direct OEM solution for maintaining precise combustion safety. This dual pressure switch is engineered to monitor critical draft inducer performance, featuring factory-set trip points of Hi 1.06" WC and Lo 0.75" WC. As a critical safety component, it ensures the venting system is clear and the heat exchanger has proper airflow before allowing ignition. This part is a direct replacement for the PRS2416K and is commonly found in Copper-Fin II series boilers including CH, CF, and CP models ranging from 990,000 to 2,070,000 BTU. Utilizing a high-quality diaphragm, it effectively prevents short-cycling and lockout codes caused by atmospheric pressure fluctuations or mechanical restricted airflow, ensuring your commercial water heater or boiler remains within safe operating parameters.

Key Benefits:

• OEM Compatibility: Guaranteed fit for Lochinvar 100208375 and A.O. Smith commercial systems.
• Precise Calibration: Dual-set points of 1.06" and 0.75" WC for accurate pressure differential monitoring.
• System Reliability: Replaces PRS2416K to resolve common pressure switch open error codes and ignition failure.
• Rugged Construction: Built to withstand the high-temperature environment of an HVAC mechanical room.
• Versatile Application: Suitable for Copper-Fin II boilers, water heaters, and pool heaters.

Common Questions:

Is the 100208375 compatible with older PRS2416 models?
Yes, the 100208375 is the official successor and is functionally identical to the PRS2416K and PRS2416, ensuring seamless integration with existing wiring harnesses.

What causes this switch to trip frequently?
Frequent trips are often due to a clogged flue, moisture in the pressure switch hose, or a failing inducer motor. If the mechanical venting is clear, the internal diaphragm of the switch may be ruptured.

Can I use this for both Natural Gas and LP units?
Yes, this dual pressure switch is designed for use in equipment fired with either natural gas or liquid propane, provided the WC specifications match the manufacturer's requirements.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.