Johnson Controls P47AA-1 Pressure Control Freon this indicates the pressure switch

this indicates the pressure switch is stuck open

eliminating the need for external regulation in standard natural gas setups

utilizing this genuine Rheem-Ruud SP12049E ensures factory-spec impedance and response times

while the Carrier EF32CW035 is preset

Johnson Controls P47AA-1 Pressure Control Freon this indicates the pressure switchThe Johnson Controls P47AA 1 is a commercial grade steam pressure limit control designed for high limit cutout or operating control in low pressure steam heating systems. This SPST pressure switch is engineered to open the circuit on a pressure rise, featuring an automatic reset mechanism that restores operation once the system pressure drops below the differential setting. With a versatile operating range of 0 to 15 psig and an adjustable