Description
The Heatcraft Refrigeration 28911301 Fan Delay Switch/Thermostat W/Wire Leads 3/8″ Tube Mount controls fan operation timing based on temperature sensed at the mounting location. It works using a bulb sensing element filled with a temperature-responsive medium that expands or contracts with heat, activating an internal switch to delay or initiate fan operation. In HVAC systems, it is placed on coil or discharge tubing to manage fan start and stop timing after temperature changes. Its tube-mounted design ensures accurate thermal contact, stabilizes switching response, and coordinates airflow activation with system temperature conditions.
