Lochinvar & A.O. Smith 100166196 Air Pressure Switch

The Lochinvar & A.O. Smith 100166196 Air Pressure Switch is an important device used in heating, ventilating and air conditioning systems to measure pressure in gas fired water heater and boiler. It functions on the basis of checking the pressure of the air in the combustion chamber, and turning on or off the system, in order to minimize the dangers. This air pressure switch used in both residential and commercial heating systems enhances performance, energy efficiency and longevity of HVAC equipment.