Johnson Controls P28AN-1C Lube Oil Protection Control, 90 second Time Delay Man.Reset For Ammonia

Johnson Controls P28AN-1C Lube Oil Protection Control, 90 second Time Delay Man.Reset For Ammonia. JCI's P28 Series Adjustable Oil Protection Switches measure differential pressure generated by the oil pump and the refrigerant pressure at the crankcase. These controls are only available for manual reset after cut-out.