Lochinvar & A.O. Smith 100308918 Air Pressure Switch N.C 2"WC

Lochinvar & A.O. Smith 100308918 Air Pressure Switch (N.C. 2” WC) is a safety device commonly installed in the gas-fired water heaters and boilers. This switch tracks the airflow in the given system and guarantees that the combustion process is safe and efficient. It works on normally closed (N.C.) mode, means it operates when the airflow is below a set limit, which is safe for the system. This air pressure switch helps to maintain proper ventilation thus increasing the safety and reliability of the HVAC equipment, decrease chances of failure, increase energy efficiency and consequently increase the durability of the equipment.