York S1-024-27659-001 SPST Pressure Switch -0.90" WC

The York S1-024-27659-001 Pressure Switch is a safety and control device used in HVAC systems. It is an SPST switch and the working pressure of this switch is 0.90" WC. It senses the pressure variations and is also capable of regulating them. This pressure switch is used to measure pressure and change its electrical contacts based on the pressure being measured. When the pressure is below 0.90" WC, the switch is on and it may sound an alarm or change the system configuration. This makes it possible to control pressure inside the HVAC system to safe and ideal pressure at any particular time.