Product Description
. . . . . Johnson Controls Johnson Controls P28AA-18C P28AA-18C - The P28 and P128 Series Lube Oil Controls provide dependable and economical oil pressure cut-out for pressure-lubricated refrigeration compressors. The field-adjustable pressure differential of these controls provides compressor operation according to the manufacturer?s specifications. The P28 and P128 controls operate by measuring the net lube oil pressure and de-energizing the compressor if the pressure falls below the differential setpoint.. Johnson Controls. Johnson Controls. P28AA-18C.