Description
The York S1-025-46403-000 Limit Switch L140-40F is a thermostatically secure control used in HVAC systems to regulate the heat level within and turn off in case of set limits. It operates by closing its electrical contact at a specific temperature to avoid overheating of essential parts. The switch is mounted in the furnace or air handler within the heat-generating parts. In the unit, it secures the heat exchanger and blower assembly to assist optimal operating conditions in residential and commercial forced-air heating HVAC systems.









