York S1-RLTH-31831 Open 37F Freeze Stat Close 49F

The York S1-RLTH-31831 Freeze Stat is designed to monitor air temperature within systems and provide protection against freezing conditions. It opens at 37F and closes at 49F, allowing it to control system operation based on temperature changes. This component is installed in air handling units, chilled water systems, rooftop equipment, and ventilation assemblies that restrict airflow in HVAC systems. As part of the safety and control circuit, the freeze stat supports in initiating protective actions, such as shutting down equipment or activating, to maintain proper system performance.