Antunes Controls 8221212022 Switch

The Antunes Controls 8221212022 (Model JD-2) is a high-performance differential air pressure switch designed for precision monitoring in HVAC and industrial process applications. This compact air pressure switch features an adjustable set point range from 0.05" to 9.0" W.C., providing critical flexibility for draft proving, filter monitoring, and fan status automation. Built for durability, the unit utilizes a rugged sensing diaphragm and high-quality electrical contacts to ensure reliable SPDT switching under demanding thermal conditions. The JD-2 differential switch is engineered for a compression fit installation, facilitating a secure vacuum or pressure connection in tight mechanical spaces. Technicians rely on this adjustable pressure switch for its repeatable accuracy and field-adjustable set points, which are essential for maintaining system static pressure and ensuring safe combustion airflow in commercial boiler and furnace configurations.

Key Benefits for Technicians:

• Wide Adjustability: The 0.05" to 9" W.C. range allows for versatile field calibration across various air handling systems.
• Reliable SPDT Contacts: Provides flexible wiring options for normally open or normally closed circuits in safety interlock loops.
• Compact Footprint: Specifically designed for space-constrained installations common in modern rooftop units and high-efficiency furnaces.
• Precision Accuracy: Ensures stable differential pressure sensing to prevent nuisance tripping while maintaining strict safety standards.
• Durable Construction: Engineered to withstand the rigors of mechanical room environments without losing calibration integrity.

Common Installation Questions:

How do I adjust the set point on the JD-2 model?
The set point is field-adjustable by turning the adjustment screw located under the removable cover. Ensure you use a calibrated manometer to verify the switching threshold during commissioning.

Can this switch be used for both vacuum and pressure applications?
Yes, the Antunes 8221212022 is designed to sense positive pressure, vacuum, or differential pressure depending on which ports are utilized during piping installation.

What is the maximum surge pressure this switch can handle?
While designed for low-pressure sensing, the internal diaphragm assembly is rated to withstand standard system surges common in commercial ventilation without rupturing.

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.