Description
Johnson Controls P170LB-6 Dual Pressure Control
The Johnson Controls P170LB-6 is a heavy-duty dual pressure control engineered for reliable refrigeration and HVAC system protection. With a single-pole, single-throw (SPST) switch action, this control simultaneously monitors both the low-pressure and high-pressure sides of a refrigerant circuit, providing comprehensive safeguarding in a single, compact device.
Low-Pressure Side
- Operating range: 12″ Hg (vacuum) to 80 PSI
- Adjustable differential: 5 to 35 PSI
- Low cut-out limited design for added system protection
High-Pressure Side
- Operating range: 100 to 500 PSI
- Non-adjustable differential: 65 PSI fixed
Construction & Connections
- Switch action: SPST (Single-Pole, Single-Throw)
- Connection type: 1/4″ external flare connector
- Dual-function design monitors both high and low sides simultaneously
Applications
The P170LB-6 is ideal for use in commercial refrigeration systems, air conditioning equipment, and other HVAC applications where dual-pressure monitoring is required. The wide low-side range — spanning from deep vacuum through positive pressure — makes it suitable for a variety of refrigerants and system configurations. The fixed 65 PSI high-side differential simplifies setup, while the adjustable low-side differential allows technicians to fine-tune cut-out and cut-in points to match specific system requirements.
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