The Johnson Controls P100AP-105 is an encapsulated, direct-mount pressure control designed for reliable system protection and automatic pressure-based switching in commercial and industrial HVAC and refrigeration applications. With its open construction and single-pole single-throw (SPST) switching action, this control opens on a pressure drop and automatically resets once pressure is restored — eliminating the need for manual intervention and reducing downtime.
Key Features
- Encapsulated design for durability and protection against environmental contaminants
- Direct mount configuration for simplified, compact installation
- SPST switching action — opens on pressure drop for reliable low-pressure protection
- Automatic reset operation restores normal function without manual intervention
- Open construction for easy field inspection and serviceability
- Compatible with 120/240 Vac circuits for broad application flexibility
Electrical & Pressure Specifications
- Contact Configuration: SPST (Single-Pole, Single-Throw)
- Switching Action: Opens on pressure drop
- Contact Voltage Rating: 120/240 Vac
- Open Set Point: 30 PSIG
- Close Set Point: 60 PSIG
- Reset Type: Automatic
Application
The P100AP-105 is well-suited for use as a low-pressure safety cutout or pressure-sensing switch in refrigeration systems, chillers, compressor circuits, and other HVAC equipment where automatic pressure monitoring and circuit interruption are required. Its direct-mount design streamlines installation directly to system piping or equipment ports, reducing the need for additional mounting hardware.
Why Choose Johnson Controls
Johnson Controls is a globally recognized leader in building efficiency and HVAC controls, delivering products engineered for long-term reliability, precise performance, and compliance with industry standards. The P100AP-105 reflects that commitment — offering a robust, field-proven pressure control solution trusted by HVAC professionals.
