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

this indicates the pressure switch is stuck open

Engineered for hydronic heating and cooling applications

This board is specifically designed for FSA2X and FSA4X fan coils

Precision Adjustment: Includes "Sight-Set" visible scales for rapid

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