Johnson Controls P499ACP-107K Pressure Transducer

The Johnson Controls P499ACP-107K is a precision-engineered electronic pressure transducer designed for high-side refrigeration and air conditioning applications. Engineered to withstand demanding environments, this sensor features a 0-750 PSI pressure range and provides a stable 4-20 mA output signal, ensuring seamless integration with building automation systems and electronic controllers. This specific model utilizes a 1/4" SAE flare internal thread connection with an integral Schrader depressor (Style 47), allowing for direct installation on system access valves without the need for additional capillary tubes or manifold adapters. The inclusion of a 6.5' wire harness (Shielded Cable) simplifies field wiring and reduces EMI interference, maintaining signal integrity over distance. Constructed with a stainless steel sensing element and environmental sealing, the P499ACP-107K transducer is built for durability against vibration and temperature fluctuations. It serves as a reliable replacement for outdated pressure switches, offering superior HVAC pressure monitoring and more precise head pressure control.

Technical Benefits

• Rugged Stainless Steel Construction: Built to handle harsh refrigerants and prevent leaks under high-pressure conditions.
• Style 47 Connection: The 1/4" SAE internal flare with depressor enables quick mounting to standard refrigeration ports.
• Linear 4-20 mA Signal: Provides consistent feedback for variable speed fan control and high-accuracy diagnostic monitoring.
• Wide Operating Range: Calibrated for 0-750 PSI, making it ideal for R-410A and other high-pressure refrigerant systems.
• Integrated 2-Meter Lead: The 6.5-foot wire harness provides ample length for routing through control cabinets.

Common Questions

How do I wire a 4-20 mA pressure transducer?
The P499ACP-107K typically uses a two-wire loop-powered configuration. Connect the supply voltage to the positive terminal and use the return signal for your controller’s analog input, ensuring the total loop impedance does not exceed the manufacturer’s specifications.

Is the P499ACP-107K compatible with R-410A systems?
Yes, with a 0-750 PSI range, this Johnson Controls transducer is specifically designed to handle the higher operating pressures found in modern R-410A air conditioning and refrigeration equipment.

Can this transducer be used for oil pressure monitoring?
While primarily used for refrigeration discharge or suction, the stainless steel construction and 4-20 mA output make it compatible with various non-corrosive fluids and oils, provided the pressures remain within the 750 PSI limit.

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.