Description
The Lennox 19L57 is an SPST pressure switch used to measure pressure of air in different Lennox HVAC systems. It is easy to install because of its small size and vertical orientation of the unit. This has a variable pressure range of 0.25 Inches of WC and can be preset depending on the system requirements. Given the fact that this switch measures the pressure in the air with high accuracy this component is essential for keeping the system in and avoiding possible harm to the equipment. For instance; it can help to maintain the right manner of air flow and the burning efficiency of the evaporator coils in the heating and cooling system.
