Antunes Controls 8224212025 Pressure Switch

The Antunes Controls 8224212025 is a high-precision Model ADPRO-900 air differential pressure switch designed for monitoring airflow in commercial HVACR and industrial combustion systems. This SPDT pressure switch features an adjustable set point range from 0.05" to 9.0" W.C., providing reliable sensing for positive, vacuum, or differential pressures. Built for robust field performance, it includes a bottom 1/4" male NPT connection and a side 1/4" compression fitting, allowing for flexible installation in tight mechanical cabinets. As an FM approved switch, it meets stringent safety standards for combustion air proving and clogged filter detection. Technicians regularly specify this part for boiler pressure monitoring and makeup air unit safety interlocks because of its repeatable trip points and durable diaphragm construction. Ensure your differential pressure sensing lines are clear of debris to maintain accurate HVAC safety switch operation.

Key Benefits for Contractors

• Wide Adjustment Range: The .05-9"wc span allows for precise calibration across various static pressure applications.
• Dual Connection Ports: NPT and compression fitting options simplify field replacement and retrofitting.
• FM Approved: Verified for use in industrial heating equipment and fire-safe control circuits.
• Snap-Action SPDT Switch: Provides reliable electrical switching for both normally open and normally closed control logic.

Common Questions

How do I calibrate the set point on the Antunes 8224212025?
Remove the cover and use the internal adjustment screw while monitoring the pressure with a calibrated manometer to ensure the trip point matches system requirements.

Can this switch be used for sensing vacuum pressure?
Yes, this differential air switch is designed to sense positive, negative (vacuum), or differential air pressure by utilizing the corresponding ports.

What are the electrical ratings for this pressure switch?
Typical Antunes ADPRO series switches are rated for high-capacity loads, but it is critical to verify the amperage of your specific control circuit against the nameplate data.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.