Johnson Controls P499AAP-105K Pressure Transducer

The Johnson Controls P499AAP-105K is a rugged electronic pressure transducer engineered for high-accuracy performance in demanding HVACR systems. Featuring a 0-500 PSI pressure range and a stable 4-20 mA output signal, this transducer provides linear feedback for monitoring refrigerant pressure in commercial chillers, supermarket refrigeration, and industrial processing units. Built with stainless steel construction, the P499 series is resistant to vibration and pressure spikes, ensuring reliability in harsh environments. This model utilizes a 1/8" NPT external thread (Style 49) connection for standard mechanical fits and includes a 6.5' wire harness for simplified electrical integration with System 450 controllers or building automation systems. By delivering real-time pressure diagnostics, it enables precise modulation of compressors and fan motors to optimize system efficiency and prevent mechanical fatigue. Professionals rely on the P499AAP-105K for its low-offset drift and consistent calibration across the entire operating temperature spectrum.

• High-EMI Shielding: Internal circuitry is protected against electromagnetic interference, preventing signal noise near variable frequency drives.
• Corrosion Resistance: The stainless steel diaphragm is compatible with all common non-corrosive refrigerants and chilled water applications.
• Fast Response Time: Delivers rapid signal updates to ensure immediate system adjustments, critical for maintaining tight suction and discharge setpoints.
• Broad Compatibility: Seamlessly integrates with Johnson Controls equipment and third-party controllers accepting a 4-20 mA transducer input.

What is the thread type for the P499AAP-105K?
This unit features a 1/8 inch NPT male connection, designated as Style 49 by the manufacturer.

Can this transducer be used with CO2 systems?
While the 0-500 PSI range is suitable for subcritical applications, always verify compatibility with specific refrigerant chemistry and peak operating pressures.

Does this include the electrical cable?
Yes, this specific model comes factory-equipped with a 2-meter (6.5 foot) wire harness for direct hardwiring.

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.