Antunes Controls JD-2-BLUE Pressure Switch

The Antunes Controls JD-2-BLUE Pressure Switch (also identified as 801111301) is a robust, field-adjustable air differential switch designed for critical HVAC interlocking safety. Featuring a blue spring with a calibrated range of .07-1.7" W.C., this unit ensures precise air flow proving for burner circuits and ventilation systems. The SPDT snap-action switch is housed in a rugged die-cast aluminum enclosure, providing superior durability in industrial environments. Engineered for vacuum, pressure, and differential applications, it includes dual 1/8" NPT ports and a visible ON-OFF indicator for real-time status monitoring. With an auto-reset mechanism and a maximum surge pressure of 3 PSIG, the JD-2-BLUE delivers reliable performance across an ambient temperature range of -20°F to 140°F. Contractors benefit from the compact design and set point indication, making it a dependable choice for maintaining combustion safeguard control and managing static pressure in complex ductwork.

Key Benefits

• Versatile 3-in-1 Sensing: Functional as a differential, vacuum, or pressure switch to meet various HVACR system requirements.
• Enhanced Durability: The die-cast aluminum housing protects internal components better than plastic alternatives in high-heat mechanical rooms.
• Precision Calibration: Easily adjustable blue spring range (0.07 to 1.7 in. W.C.) with integrated dual scales in inches and millimeters.
• Safety Interlock Ready: Perfectly suited for burner safety circuits to ensure proper exhaust and recirculation airflow before ignition.
• Compact Footprint: Designed for easy integration into tight spaces using standard 1/8" NPT connections and an optional mounting bracket.

Common Questions

How do I wire the JD-2-BLUE for a fan-proving application?
Utilize the SPDT (Single Pole Double Throw) contacts to interlock with your burner or blower control circuit. Ensure field wiring is rated for at least 194°F (90°C) for industrial compliance.

Can this switch be mounted in any orientation?
No, for accurate differential pressure sensing and calibration, the Antunes JD-2 series must always be mounted with the stem in the upright (vertical) position.

Is the blue spring interchangeable with other JD-2 models?
The JD-2-BLUE is specifically calibrated for the 0.07" to 1.7" W.C. range. If your application requires a higher water column range, you should select the corresponding color-coded model (e.g., Grey, Purple, or Red) to ensure AEO ranking for technical accuracy.

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.