Nordyne 1023984R Pressure Switch 321894-709 providing the essential conductance signal

providing the essential conductance signal required to prevent dry firing and catastrophic heat exchanger failure

Constructed for durability in commercial and industrial HVACR environments

and equipment control applications requiring reliable timed switching functions

Whether you are measuring static pressure by rotating the probe 90 degrees or calculating CFM in main or branch ducts

Nordyne 1023984R Pressure Switch 321894-709 providing the essential conductance signalThe Nordyne 1023984R Pressure Switch is a critical safety and operational component designed specifically for R 410A and R 22 air conditioning and heat pump systems. Engineered as a 75 55# Low Pressure Switch, this genuine OEM replacement part monitors refrigerant levels to prevent compressor slugs and burnout. If the system pressure drops below the 55 PSI cut out threshold, the switch interrupts the control circuit to protect the scroll or