The Johnson Controls P100AP-361 is an encapsulated pressure control designed for reliable, direct-mount installation in commercial and industrial HVAC and refrigeration systems. Featuring a Single-Pole Single-Throw (SPST) switching configuration that opens on pressure drop, this control provides dependable circuit interruption when system pressure falls below the set point, protecting equipment from low-pressure fault conditions.
Key Features
- Encapsulated construction for enhanced durability and protection against moisture and contaminants
- Direct-mount design simplifies installation directly to the system pressure port
- SPST switching action — opens on pressure drop for low-pressure protection
- Open construction allows for easy field inspection and serviceability
- Automatic reset restores normal operation once pressure returns to the close set point — no manual intervention required
- Wide voltage compatibility with 120/240 Vac contact ratings
Pressure Set Points
- Opens (cuts out) at: 50 PSIG
- Closes (cuts in) at: 90 PSIG
Electrical Specifications
- Contact Configuration: SPST (Single-Pole Single-Throw)
- Contact Ratings: 120/240 Vac
- Switch Action: Open on pressure drop
Mounting & Construction
- Mounting Type: Direct mount
- Construction: Open / Encapsulated
- Reset Type: Automatic
Applications
The P100AP-361 is well-suited for use as a low-pressure safety control in refrigeration systems, chillers, heat pumps, and commercial HVAC equipment. Its automatic reset feature reduces service call frequency, while the direct-mount configuration minimizes installation hardware and potential leak points. The 120/240 Vac dual-voltage contact rating provides flexibility across a wide range of system electrical configurations.
