Description
The Johnson Controls P170MA-18 is a heavy-duty dual pressure control engineered for reliable refrigeration and HVAC system protection. Featuring a single-pole, single-throw (SPST) switch action, this control monitors both the low and high pressure sides of a refrigerant circuit simultaneously, providing comprehensive system safeguarding in a single device.
Low Pressure Side
- Operating Range: 12″ Hg (vacuum) to 80 PSI
- Differential Range: 5 to 35 PSI
High Pressure Side
- Operating Range: 100 to 500 PSI
Key Features
- SPST switch action for straightforward circuit control
- Dual pressure monitoring — low side and high side in one unit
- Manual reset lockout on the high pressure side for added safety and system protection
- 1/4″ external flare connector for easy field installation and compatibility with standard refrigerant lines
- Wide pressure ranges suitable for a variety of refrigerants and system types
Applications
The P170MA-18 is ideal for commercial refrigeration systems, air conditioning equipment, and other HVAC applications where dual-circuit pressure protection is required. The manual reset lockout feature ensures that a technician must physically intervene before the system restarts after a high-pressure trip, preventing repeated compressor cycling and potential equipment damage.
Why Choose the Johnson Controls P170MA-18?
Johnson Controls is a globally recognized leader in HVAC controls and building automation. The P170MA-18 reflects their commitment to precision engineering and system reliability. With its broad pressure operating ranges, intuitive manual reset, and standard 1/4″ flare connection, this dual pressure control is a trusted choice for HVAC professionals seeking dependable compressor and system protection.
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