Description
The Johnson Controls P29NC-3 Low-Pressure Cut Out with Time Delay is one of the essentialpieces of HVAC systems because it protects the compressor from damage by low refrigerant pressure. This device is designed to detect pressure up to 100 PSI and triggers a 60-second time delay before it responds. This is largely done to avoid cycling the compressor due to changes in pressure to prevent pressure cycling of equipment, therefore enhancing their durability. It is widely used in air conditioning, refrigeration and can be used in most HVAC systems where pressure conditions must be controlled. It has electrical ratings of 24 to 600 VAC, and the temperature range is from -40°F to 150°F, which means the device will be reliable in any climate.
