Johnson Controls P170AA-2 Control

The Johnson Controls P170AA-2 is a professional-grade high pressure cutout control designed for heavy-duty commercial refrigeration and HVAC applications. Featuring a Single-Pole Single-Throw (SPST) switch configuration with open-low action, this unit provides precise head pressure control and condenser fan cycling to maintain system equilibrium. Engineered for non-corrosive refrigerants including R410A, the P170AA-2 operates within a 0-150 PSIG range with an adjustable differential between a 10 PSI minimum and 70 PSI maximum. This model is technically identical to the P170AA-2C, utilizing a standard 1/4 inch flare nut for secure pressure connections. With multi-tap 120/208/240 VAC electrical ratings, it integrates seamlessly into various control circuits, offering the rugged reliability veteran technicians expect from the PENN P170 series. The all-steel case ensures durability in demanding mechanical rooms, making it a staple for contractors managing refrigeration pressure limiting requirements.

• Universal Compatibility: Optimized for R410A and other common non-corrosive refrigerants.
• Flexible Electrical Ratings: Supports 120V, 208V, and 240V circuits for versatile field installation.
• Adjustable Differential: Fine-tune system performance with a 10 to 70 PSI differential range.
• Rugged Construction: Built with an all-steel case and cover to protect internal switch mechanisms.
• Precise Pressure Management: Reliable SPST open-low logic for accurate condenser fan cycling.

Is the P170AA-2 compatible with the P170AA-2C?
Yes, the P170AA-2 and P170AA-2C are identical in technical specifications and performance, allowing for direct drop-in replacement.

Can this control be used for ammonia systems?
No, this specific model is designed for non-corrosive refrigerants only. Ammonia applications require specialized stainless steel or compatible bellows.

What is the primary application for an open-low pressure control?
This SPST open-low control is typically utilized for condenser fan cycling or as a high pressure cutout to prevent equipment damage during over-pressure events.

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.