Description
Product Overview
The Lochinvar & A.O. Smith 100166249 is an OEM SPDT (Single Pole Double Throw) pressure switch engineered for precise pressure sensing and safety control in Lochinvar and A.O. Smith water heater and boiler applications. Factory-calibrated to a 1.05″ water column (w.c.) setpoint, this switch monitors combustion air or gas pressure to ensure safe burner operation and system integrity.
Key Features
- OEM replacement pressure switch for Lochinvar and A.O. Smith equipment
- SPDT (Single Pole Double Throw) switching action for versatile circuit control
- Factory-set at 1.05″ w.c. for accurate, repeatable pressure sensing
- Designed to monitor combustion air pressure or draft for safe burner operation
- Direct OEM fit ensures reliable, drop-in replacement with no modifications required
- Helps protect equipment from unsafe operating conditions caused by blocked venting or inadequate airflow
Application
This pressure switch is a direct OEM replacement part for select Lochinvar and A.O. Smith water heaters and boilers. It is typically used in the combustion air proving circuit to verify that adequate draft or airflow is present before allowing the burner to fire, providing a critical layer of safety protection.
Product Specifications
- SKU: 100166249
- Switch Type: SPDT (Single Pole Double Throw)
- Pressure Setpoint: 1.05″ w.c.
- Brand: Lochinvar & A.O. Smith
- Application: Water heaters and boilers
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