Description
The York S1-2845-3181 Auto Reset Limit Switch is a safety temperature control system used to interrupt and restore burner operation based on temperature thresholds. In the equipment such as furnaces, air handlers, and packaged heating units within HVAC systems. It uses a bimetal sensing element that reacts to heat rise, opening the circuit at 170F and closing at 140F to regulate heating cycles. Positioned within the heat exchanger or airflow path, it assists in controlled shutdown and restart conduct, supporting stable thermal regulation and consistent equipment operation during routine heating demand.
