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General Oil Pressure Guidelines Carrier/Carlyle 06D/06E -  OLDER: 12-20 PSI (net)                   NEWER: 16-37 PSI (net) 5F/5H -  40-60 PSI (net) Pressure Switch Specs: 06D/06E -  120 Second Delay                   8-11 PSI (Cut-In)                   4-8 PSI (Cut-Out) 5F/5H -  45 Second Delay              25-30 PSI Cut-Out (Trip) Copeland 20-40 PSIG (net) Pressure Switch Specs: 120 Second Delay                                        14 PSIG (Cut-Out)                                        9 PSIG (Cut-In)