Lochinvar & A.O.Smith 100166220 SPST Pressure Switch 0.10" WC

The Lochinvar & A.O. Smith 100166220 is an Pressure Switch SPST which is a safety component for HVAC systems and is used in furnaces and water heaters. It works by monitoring the air pressure in the system and actuating or deactivating the heating unit according to a range of airflow. It is set at 0.10" water column, a switch that would allow proper venting and avoid the possible hazard of wrong venting. The design is simple but reliable, as it is a Single Throw Single Pole. The switch keeps system efficiency and safety in place, not allowing overheating or malfunctioning, and allows the heating systems to work to their best performing capacity.