Johnson Controls P499RAP-101K Pressure Transducer

The Johnson Controls P499RAP-101K is a high-accuracy electronic pressure transducer engineered for demanding HVACR applications, specifically within refrigeration and air conditioning systems. This model features a 0-100 PSI pressure range and provides a linear 0.5-4.5 Vdc output signal, making it fully compatible with most electronic controllers. Designed with a 1/8" NPT external thread (Style 49) and including a 6.5' wire harness, it ensures a secure, leak-proof installation in high-vibration environments. Since the P499RAP-101K is the direct replacement for P399AAA-1-200, it serves as a seamless drop-in solution for legacy system maintenance. The stainless steel construction offers excellent chemical compatibility with all common non-corrosive refrigerants, ensuring long-term signal stability and precise pressure monitoring even under thermal cycling. For technicians requiring a reliable refrigeration pressure sensor, this unit delivers the durability needed to maintain system efficiency and prevent compressor cycling issues.

• Seamless Integration: Features a standardized 0.5-4.5 Vdc output that integrates directly with building automation systems and standalone controllers.
• Rugged Construction: Built to withstand commercial HVACR environments, providing resistance to pressure spikes and moisture ingress.
• Simplified Installation: Includes a dedicated wire harness and a standard 1/8" NPT connection to reduce field labor time during transducer replacement.
• Legacy Compatibility: Specifically designed to replace the discontinued P399AAA-1-200, ensuring zero downtime for older equipment.

How do I wire the P499RAP-101K to my controller?
The included 6.5-foot harness simplifies Johnson Controls P499 wiring by providing clear lead identification for the supply voltage, ground, and signal output, typically connecting to a 5 Vdc excitation source.

Is this transducer compatible with R-410A systems?
This 100 PSI pressure sensor is optimized for low-side monitoring or specific suction pressure applications. Ensure your system's maximum working pressure does not exceed the 100 PSI limit of this specific P499 series model.

Can I use this for water or oil pressure monitoring?
Yes, the 304 series stainless steel sensing element is compatible with a wide range of fluids and gases, though it is primarily utilized as a refrigerant pressure transducer.

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.