Johnson Controls P72CG-2 DPST Pressure Controller 50-240 PSI Adjustable Differential Style 15

The Johnson Controls P72CG-2 is an electronic type of dual pressure controller that is used to control pressure in HVAC as well as refrigeration systems. This has a double pole single throw switch and can operate between 50 to 240 PSI. What distinguishes it from all other models is its ability to have individual decreed differentials to ensure both effectiveness and safety of the system. In the HVAC system, air conditioners, heat pumps and refrigeration equipment need a dual pressure controller in order to control the pressure levels.