York S1-024-40872-000 Pressure Switch 0.75" WC

The York S1-024-40872-000 Pressure Switch 0.75” WC is an essential part in HVAC systems which is responsible for measuring and regulating pressure in the system. This pressure switch is a safety part which controls or stops the operation of a part of equipment depending on the pressure which is either set or measured. It is a pressure operated switch that works by monitoring the pressure on the HVAC system and the set-pressure. When the pressure rises or drops to above or below the set point the switch gives an electrical signal that can be used to turn on or off fans, compressors or other equipment.