Description
The Weil McLain 511-624-403 Pressure Switch is an essential component for the control of HVAC systems with a pressure setting of 1.22″WC. It monitors air or gas flow to ensure safe ignition and proper system operation. It is commonly used in boilers and furnaces to watch and keep the combustion conditions at an optimal level. It increases safety and efficiency by shutting down the unit in unsafe pressure conditions. This accurate performance heating operation is consistently performed resulting in energy waste and system damage.









