Description
Johnson Controls P29NA-3 Low Pressure Cutout Control
The Johnson Controls P29NA-3 is a low pressure cutout control engineered for reliable refrigeration and HVAC system protection. Designed to monitor system pressure and automatically shut down equipment when pressure drops below safe operating thresholds, this control helps prevent compressor damage and costly system failures. The auto-recycle feature allows the control to automatically reset and restore operation once safe pressure conditions return, reducing the need for manual intervention and minimizing system downtime.
Key Features
- Low pressure cutout control for refrigeration and HVAC system protection
- Auto recycle operation — automatically resets when safe pressure is restored
- Operating voltage: 24 Vac
- Pressure range: 20″ Hg (vacuum) to 100 PSIG
- Built-in time delay function to prevent nuisance tripping on momentary pressure fluctuations
- Protects compressors and refrigeration equipment from low-pressure conditions
- Designed for straightforward field installation and integration into existing control circuits
Application
The P29NA-3 is well-suited for use in commercial refrigeration systems, air conditioning equipment, and other HVAC applications where low-side pressure monitoring is critical. The integrated time delay helps eliminate false trips caused by brief pressure dips during normal system cycling, ensuring stable and reliable operation. Its 24 Vac rating makes it compatible with standard low-voltage control circuits commonly found in commercial HVAC and refrigeration equipment.
Product Specifications
- Brand: Johnson Controls
- SKU: P29NA-3
- Control Type: Low Pressure Cutout
- Reset Type: Auto Recycle
- Voltage: 24 Vac
- Pressure Range: 20″ Hg to 100 PSIG
- Time Delay: Yes
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