© Panasonic Corporation 2017Order No: PAPAMY1702087CEAir ConditionerOutdoor UnitCU-3E19RBU-5CU-4E24RBU-5DestinationU.S.A.CanadaPlease file and use this manual together with the service manual for Model No. CS-ME5RKUA , CS-ME7RKUA Order No.PAPAMY1503085AE, CS-ME5SD3UA, CS-ME7SD3UA Order No. PAPAMY1604056CE, CS-E9RKUAW, CS-E12RKUAW,CS-E18RKUAW, CS-E24RKUAW Order No PAPAMY1501049CE, CS-ME9SB4U Order No PAPAMY1604059CE, CS-E9SD3UAW,CS-E12SD3UAW, CS-E18SD3UAW Order No. PAPAMY1604052CE, CS-E12RB4UW, CS-E18RB4UW Order No.PAPAMY1503095CEWARNINGThis service information is designed for experienced repair technicians only and is not designed for use by the general public.It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service orrepair the product or products dealt with in this service information by anyone else could result in serious injury or death.PRECAUTION OF LOW TEMPERATUREIn order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.IMPORTANT SAFETY NOTICEThere are special components used in this equipment which are important for safety. These parts are marked by in the SchematicDiagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replacedwith manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission ofmanufacturer.!