Velocity Boiler Works (Crown) 650009 Pressure Switch BWF 3-4 Sec

The Velocity Boiler Works (Crown) 650009 Pressure Switch BWF is a control component that monitors and regulates system pressure to ensure safe operation within HVAC systems. It operates by detecting preset pressure levels and activating or deactivating electrical circuits, with a built-in 34 second delay that helps prevent rapid cycling and stabilizes operation. It connects to the pressure sensing line and control circuit to oversee operating conditions. Its use supports safe pressure control, reduces system stress, and helps maintain consistent heating performance during operation.