Description
Johnson Controls P100DA-1 Encapsulated Pressure Control Overview
The Johnson Controls P100DA-1 is a rugged, encapsulated pressure control engineered for reliable high-side pressure protection in commercial and industrial HVAC and refrigeration systems. Featuring a direct-mount design, this SPST (Single-Pole, Single-Throw) control opens on pressure rise, providing a critical safety shutoff when system pressures reach unsafe levels. The lockout manual reset on close ensures the system cannot automatically restart after a high-pressure trip, requiring a deliberate technician intervention before resuming operation — a key safety feature that helps prevent equipment damage and protects personnel.
Key Features
- Encapsulated construction for enhanced durability and protection against environmental contaminants
- Direct-mount design for simplified installation directly onto refrigeration or HVAC equipment
- SPST switching action — opens on pressure rise for high-pressure cutout protection
- Open construction allows for field inspection and serviceability
- Opens at 410 PSIG — suitable for high-pressure refrigerant applications
- 120/240 Vac contact ratings for compatibility with a wide range of control circuits
- Lockout manual reset on close — prevents automatic restart after a high-pressure trip event
- Designed for use in commercial refrigeration, air conditioning, and HVAC systems
Specifications
- Brand: Johnson Controls
- SKU / Model: P100DA-1
- Switch Type: SPST (Single-Pole, Single-Throw)
- Mounting Type: Direct Mount
- Construction: Open / Encapsulated
- Action: Opens on Pressure Rise
- Open Set Point: 410 PSIG
- Contact Voltage Rating: 120/240 Vac
- Reset Type: Lockout Manual Reset on Close
Applications
- High-pressure cutout protection for commercial air conditioning systems
- Refrigeration equipment high-side pressure safety control
- Compressor protection in HVAC and refrigeration applications
- Systems utilizing high-pressure refrigerants requiring a 410 PSIG cutout threshold
Why Choose the Johnson Controls P100DA-1?
Johnson Controls has a long-standing reputation for precision-engineered pressure and temperature controls trusted by HVAC professionals worldwide. The P100DA-1 combines a robust encapsulated housing with a straightforward direct-mount installation and a clearly defined 410 PSIG open set point, making it an ideal drop-in safety control for high-pressure refrigerant systems. The manual lockout reset feature adds an important layer of safety, ensuring that any high-pressure fault condition is investigated and resolved before the system is returned to service.
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