Amana-Goodman 10727903 SPST Pressure Switch -1.42" WC

Amana-Goodman 10727903 SPST Pressure Switch -1.42″ WC is an essential safety part meant for HVAC applications. It is a value that serves by observing the static pressure in the system. This pressure switch is an SPST type and is designed to activate at -1.42 inches of WC pressure. Its main purpose is to protect the system from damage that may be caused by high static pressure. When the pressure in the system goes beyond the recommended -1.42” WC, the switch immediately opens thus disconnecting power supply to the blower motor.