Description
Johnson Controls P72AA-27 Two Pole High Pressure Control Overview
The Johnson Controls P72AA-27 is a heavy-duty, two-pole high pressure control engineered for reliable refrigeration and HVAC system protection. Featuring a Double Pole Single Throw (DPST) switching configuration with a Close-on-High, Open-on-Low action, this control is designed to safeguard compressors and refrigerant circuits from dangerous overpressure conditions.
Key Features
- Two-pole DPST switching action — Close High, Open Low for dependable high-side pressure protection
- Operating pressure range: 100 Psi to 400 Psi for broad application compatibility
- Adjustable differential range: 35 Psi to 200 Psi for precise system tuning
- 36″ capillary tube with 1/4″ flare nut connection for flexible installation positioning
- 475 Psi maximum bellows overpressure rating for enhanced durability and safety
- Includes universal mounting bracket for quick and secure installation
Specifications
- Model: P72AA-27
- Switch Type: DPST (Double Pole Single Throw)
- Action: Close High, Open Low
- Pressure Range: 100 Psi – 400 Psi
- Differential Range: 35 Psi – 200 Psi
- Capillary Length: 36″
- Connection: 1/4″ Flare Nut
- Max Bellows Overpressure: 475 Psi
- Mounting: Universal Mounting Bracket Included
Applications
The P72AA-27 is ideal for commercial refrigeration systems, air conditioning equipment, and industrial HVAC applications where reliable high-side pressure monitoring and compressor protection are critical. The dual-pole design allows simultaneous switching of two circuits, making it well-suited for systems requiring complete circuit interruption on high-pressure events.
Why Choose the Johnson Controls P72AA-27?
Johnson Controls is a globally recognized leader in HVAC and building controls technology. The P72AA-27 delivers proven performance with a wide operating pressure range, robust bellows construction, and a convenient universal mounting bracket — reducing installation time and ensuring a secure, code-compliant fit in virtually any application.
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