Emerson Flow Control (Alco) 099008 Dual Pressure Control Switch 49-65 PSIG/218-290 PSIG STD PS2-Y7A

The Emerson Flow Control (Alco) 099008 Dual Pressure Control Switch PS2-Y7A is an electrical sensing element that is used to measure and react to changes in system pressure at the two preset points. It is applied in HVAC systems in order to open or close electrical contacts when the refrigerant pressure on the low side is 49-65 PSIG and on the high side is 218-290 PSIG to the compressors and ensure a stable operation. It is installed in the refrigerant circuit, and it switches depending on the pressure conditions.