The Cleveland Controls DFS-423 is a high-performance fixed setpoint air pressure switch designed for HVAC proof of flow and combustion air monitoring

Cross-referencing the part number is necessary before installation

When utilizing Terminal 1 and 2

Specifically calibrated for critical refrigerant pressure control

Technicians favor this model for its high MOPD capabilities and the ability to service internal components without removing the body from the piping

Antunes Controls 8021202056 Pressure Switch Els PW 17895 The Cleveland Controls DFS-423 isThe Antunes Controls 8021202056 (SMD Series) is a high precision air differential pressure switch engineered for critical proving applications in HVAC and energy management systems. This SPDT air pressure switch features a versatile sensing range of . 17 1" W. C., providing reliable monitoring of positive, negative, or differential air pressure. Built with a rugged sheet metal housing and a sensitive diaphragm, it ensures accurate setpoint indication