Description
The York S1-025-29041-003 Auto Limit Switch 135F-165F is an essential component used to regulate heat levels in systems by interrupting or completing an electrical circuit when the sensed temperature enters a defined range. It operates through a heat-responsive sensing element that reacts to rising airflow or surface temperatures and signals the control system to adjust burner or fan activity in HVAC systems. It is mounted on furnace heat exchangers or air distribution sections, and it is wired into system controls to manage operational safety. This temperature control accuracy reduces overheating and supports steady equipment cycling during heating operation.
