Heatcraft Refrigeration 5709L Open Defrost Limit 55°F-35°F

Heatcraft Refrigeration 5709L Open Defrost Limit switch that regulates defrost cycles in commercial HVAC systems. This part operates from a temperature range of 55 °F to 35 °F and terminates the defrost cycle when the set temperature is achieved. In walk-in coolers, freezers, and other commercial refrigeration units, it is commonly used to protect system components and yet ensure efficient defrosting. It optimizes defrost cycles to save on energy use, prevents ice buildup, and extends equipment life. The reliable operation helps keep refrigeration performance-optimized and maintenance needs low with its operation, to ensure food safety in cold storage system applications.