Antunes Controls 8221212002 Pressure Switch

The Antunes Controls 8221212002 (Model JD-2) is a precision-engineered differential air pressure switch designed for critical monitoring of positive, vacuum, or differential pressure. Operating within a .05" to 9" W.C. range, this SPDT switch provides reliable proof-of-airflow for HVAC systems, commercial ovens, and industrial burner applications. The unit features 1/8" NPT female connections and is field-adjustable via a calibrated scale, allowing for precise setpoint selection in the field. Designed to withstand demanding mechanical environments, the Antunes JD-2 pressure switch utilizes a durable diaphragm and high-quality electrical contacts to ensure signal integrity. Its compact footprint and SPDT contact configuration make it a versatile replacement for various airflow sensing requirements, ensuring that fans are operating and filters are clear before system ignition or operation continues. This component is essential for maintaining safety protocols and operational efficiency in high-performance mechanical systems.

• Broad Operating Range: Adjustable from .05" to 9" W.C. to accommodate varied static pressure environments.
• SPDT Switch Logic: Single Pole Double Throw configuration allows for flexible wiring as a normally open or normally closed circuit.
• NPT Connectivity: Standard 1/8" NPT female ports ensure compatibility with existing rigid or barbed fittings.
• Field Calibration: External scale allows for rapid adjustment without the need for specialized pressure gauges during initial setup.
• Industrial Durability: Robust construction minimizes setpoint drift and resists vibration-induced false trips.

How do I adjust the setpoint on the Antunes 8221212002?
Remove the cover and rotate the adjustment screw until the pointer aligns with the desired pressure on the internal scale. Always verify the trip point with a manometer during commissioning.

Can this switch be used for both positive and negative pressure applications?
Yes, by utilizing the high and low ports correctly, the JD-2 functions as a positive pressure switch, vacuum switch, or differential sensor.

What is the maximum pressure rating for the JD-2 series?
The JD-2 is rated for a maximum surged pressure of 20" W.C. to prevent diaphragm damage or calibration shifts.

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.