Johnson Controls P70CA-2 Pressure Control

The Johnson Controls P70CA-2 Pressure Control is a heavy-duty, single pole high pressure control designed for demanding commercial refrigeration and air conditioning environments. Engineered with a rugged all-steel case and cover, this SPST high pressure cutout provides reliable protection for internal components in the field. This specific model features a Close High Open Low switch action with a functional range of 50 to 500 psi and a factory-set differential adjustable between 60 and 150 psi. The 1/4" male flare pressure connector ensures a secure, leak-resistant mechanical interface, while the 525 psig maximum overpressure rating prevents bellows failure during system spikes. Compatible with non-corrosive refrigerants including R-12, R-22, R-134A, R-500, R-502, and R-410A, this PENN pressure switch is a versatile solution for head pressure control and condenser fan cycling. The Sight-Set calibrated scale allows for precise setpoint adjustments without the need for external gauges or removing the cover, streamlining routine maintenance for service technicians.

• Refined Durability: The all-steel case protects sensitive pressure actuated bellows from physical damage and environmental wear.
• Broad Refrigerant Compatibility: Designed for use with all-range refrigerants such as R-22, R-134A, and R-410A in non-corrosive environments.
• Field-Adjustable Accuracy: Features Sight-Set calibration for rapid, visible setpoint verification and range adjustment.
• High Electrical Capacity: Load-carrying contacts support direct control of AC motors up to 240V for simplified wiring in refrigeration circuits.
• Mounting Versatility: Includes a universal mounting bracket for flexible installation on horizontal or vertical surfaces.

• How do you adjust the setpoint on the P70CA-2? Adjustments are made via the range and differential screws located on the top of the unit; use the calibrated scale to confirm the Cut Out and Cut In points.
• Can this be used for condenser fan cycling? Yes, the SPST switch action and high-side range make it an industry standard for head pressure control.
• Is this control compatible with ammonia systems? No, the P70CA-2 is designed for non-corrosive refrigerants; ammonia applications require specific stainless steel ammonia-compatible models.

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.