Johnson Controls P470FB-1 Pressure Control

The Johnson Controls P470FB-1 is a single-stage, low-voltage electronic pressure control designed for precise on/off management of HVACR loads. Engineered to replace traditional electromechanical switches, this 24 VAC PENN pressure control features a large LCD that provides real-time system status and sensed pressure, often eliminating the need for manifold gauges during routine diagnostics. This unit is highly versatile, offering three field-selectable operating ranges: 0 to 100 psi, 0 to 500 psi, and 50 to 750 psi. Technical accuracy is maintained via a P399 electronic pressure transducer (sold separately), which transmits a 0.5 to 4.5 VDC signal, effectively removing the installation limitations and leak risks associated with capillary tubes. Contractors can configure the P470FB-1 as either an open-high or open-low control to suit specific refrigeration pressure control applications. For added security in commercial environments, the front-panel touchpad is lockable to prevent unauthorized setpoint adjustments.

• Multi-Range Versatility: Supports three distinct pressure ranges (0-100, 0-500, and 50-750 psi) for broad application compatibility.
• Digital Accuracy: Large LCD displays sensed pressure and system status with better precision than standard mechanical scales.
• Eliminate Capillary Tubes: Utilizing the P399 transducer allows for remote mounting up to 100 feet away, reducing vibration-related failures.
• System Protection: Built-in adjustable anti-short cycle time delay helps prevent compressor short cycling and nuisance lockouts.
• Tamper Resistance: The lockable 3-button interface ensures system parameters remain exactly where you set them.

Does the P470FB-1 include the pressure sensor?
No, the P470FB-1 requires a separate P399 series transducer and a WHA-P399 wiring harness. Ensure the transducer range matches your selected field operating range.

Can I use this for ammonia systems?
Yes, when paired with an ammonia-compatible P399 transducer, this electronic control is suitable for ammonia and other non-corrosive fluid applications.

What is the minimum differential for the high-pressure settings?
For the 0 to 500 psi and 50 to 750 psi ranges, the minimum pressure differential is 20 psi. The 0 to 100 psi range allows for a 5 psi minimum differential.

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.