Johnson Controls WHA-PKD3-400C Wire Harness

The Johnson Controls WHA-PKD3-400C Wire Harness is a critical field-service component designed specifically for interfacing with P499 series pressure transducers. This 13-foot (4.0-meter) assembly facilitates a secure, low-impedance connection between the transducer and the main system controller, ensuring accurate signal transmission for head pressure control and other refrigerant monitoring applications. Featuring a factory-terminated Packard connector, this harness streamlines installation by providing a "plug-and-play" interface that eliminates the need for manual pin termination in the field, reducing the risk of wiring errors and moisture ingress at the connection point.

Engineered for professional HVACR environments, the WHA-PKD3-400C utilizes high-grade insulation to resist common oil and chemical exposure found in mechanical rooms. Its 13-foot length provides ample reach for remote mounting of transducers on large condensing units or complex chiller assemblies where the controller and pressure tap are at a distance. As a genuine HVAC replacement part, it ensures full compatibility with the 3-wire analog output configuration of P499 and P399 series sensors, maintaining the precision required for stable refrigeration system automation.

• Optimized Length: The 13-foot span supports flexible field installation across large-scale commercial equipment without the need for additional splicing.
• Packard Electrical Connector: Provides a robust, vibration-resistant seal that secures the pressure transducer pins against environmental contaminants.
• Durable 3-Wire Construction: Designed to carry 0.5?4.5 VDC or 1?5 VDC signals with minimal resistance, ensuring the controller receives precise sensor data.
• Universal Application: Cross-compatible with various Johnson Controls P499 and P399 models, making it a versatile tool for a technician?s stock.

Is the WHA-PKD3-400C compatible with the older P399 series?
Yes, this harness is backward compatible and frequently used as a direct interface for both P399 and P499 pressure transducers utilizing the Packard-style plug.

Can I trim this harness to a shorter length?
While it can be shortened at the controller end, it is recommended to maintain the factory integrity to avoid signal fluctuations; any field modifications must comply with local electrical codes.

Does this harness include the pressure transducer?
No, this is a dedicated wiring harness assembly. The P499 pressure transducer must be sourced separately based on your specific pressure range requirements.

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.