Johnson Controls P100AA-2 Pressure Control

For contractors requiring a dependable solution for low-pressure monitoring, the Johnson Controls P100AA-2 Pressure Control provides a compact and field-proven design. This encapsulated pressure switch features SPST (Single-Pole Single-Throw) switch action configured to Open Low, making it an ideal choice for low-pressure cut-out or condenser fan cycling in commercial refrigeration and air conditioning systems. Engineered for durability, the P100AA-2 is a direct-mount component that eliminates the need for complex mounting brackets or capillary tubes, reducing potential leak points in the refrigeration circuit. This model is technically identical to the P100AA-2C, ensuring seamless HVAC cross-reference compatibility for service replacements.

Operating with an automatic reset mechanism, the unit is factory-calibrated to open at 35 PSIG and close at 60 PSIG. The 1/4 inch SAE female flare fitting includes an internal Schrader valve depressor for quick installation onto standard pressure taps. Designed for versatile power requirements, the 120/240 Vac contact ratings support a wide range of motor and pilot duty loads. The snap-acting stainless steel disc ensures repeatable performance and precise setpoints even under fluctuating ambient conditions, providing the reliability professional technicians expect from Penn pressure controls.

• Direct Mount Design: Small footprint and lightweight construction allow for direct installation on refrigeration piping, saving space and labor time.
• Environmentally Sealed: The encapsulated open construction switch protects internal components from dust and moisture, extending the service life in demanding environments.
• High Compatibility: Universal 120/240V contact ratings and standard flare connections make this a versatile "truck stock" item for various refrigeration pressure control applications.
• Tamper-Proof Calibration: Fixed, non-adjustable setpoints eliminate the risk of field errors or unauthorized adjustments to system safety limits.

• Is the P100AA-2 interchangeable with the P100AA-2C? Yes, these models share identical technical specifications and footprints. They are functionally the same part used across different distribution channels.
• Can this be used with modern refrigerants? This control is compatible with all common, non-corrosive refrigerants typically found in commercial HVACR systems.
• How does the automatic reset function work? The switch will automatically reset and close the circuit once the system pressure rises back to 60 PSIG, eliminating the need for a manual reset after a temporary low-pressure event.

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.