P170AA-2C Johnson Controls Pressure Control

Overview

The Johnson Controls P170AA-2C is a single-pressure control device designed primarily for high-pressure cut-out, head-pressure control, and condenser fan cycling in commercial refrigeration and air conditioning systems. Engineered for use with non-corrosive refrigerants, it functions via a pressure-actuated bellows system that automatically resets once conditions return to safe operating levels.

Features

• Sight-Set Calibrated Adjustment: Displays a visible pressure scale for easier, precise adjustments without removing the cover.
• All-Steel Housing: Constructed with a durable steel case and cover to provide rugged, long-lasting protection for internal components.
• Auto Reset: Features automatic reset switch action, ensuring system continuity after pressure returns to standard parameters.
• Flexible Connection Style: Built with standard fitting points to ease integration into existing commercial piping and field applications.

Specifications

• Pressure Range: 0 to 150 psig
• Differential Pressure: 10 to 70 psi (adjustable)
• Switch Action: SPST (Single-Pole Single-Throw), Open-Low
• Pressure Connection: 1/4 inch Male Flare
• Maximum Working Pressure: 325 psig
• Maximum Over Pressure: 525 psig
• Contact Rating: 17 Amps at 240 V

Applications

• High-pressure cut-out limit control for commercial HVAC systems.
• Head-pressure control and condenser fan cycling in refrigeration and air conditioning units.
• Non-corrosive fluid applications involving air, water, and oil pressure monitoring.