Carrier installation instructions Wiring Schematics-50CR Single Phase

Page 14

50CR

7.0

A05304

Fig. 15 - Wiring Schematics-50CR Single Phase

14

Image 14

Contents Installation Instructions Table of ContentsEquipment Damage Hazard Safety ConsiderationsElectrical Shock Hazard IntroductionRoof Curb for Small Cabinet Roof Curb for Large Cabinet Unit Leveling Tolerances 50CR024-036 Unit Dimensions 50CR042-060 Unit Dimensions Unit Falling Hazard Rig and Place UnitInspection Property Damage HazardRigging Bracket Under Unit Rain Lip Provide for Condensate Disposal Select and Install DuctworkElectrical Operation Hazard Typical Installation Physical Data Unit 50CRRouting Control Power Wires Routing Power Leads Into UnitConnecting Ground Lead to Ground Screw HIGH-VOLTAGE ConnectionsElectrical Data-50CR Electrical Data Legend Wiring Schematics-50CR Single Phase Wiring Schematics-50CR Three Phase Accessory Installation Line Power ConnectionsUnit Start-Up PRE-START-UP FIRE, EXPLOSION, Electrical Shock HazardSTART-UP Status Code 44, Motor Communication Fault Status Code 45, Control Board Test FaultStatus Code 37, Heater Output Sensed on When not Energized Verify Motor Winding SectionStatus Code 16, System Communication Fault Status Code 36, Heater Output not Sensed When EnergizedStatus Code 41, Blower Motor Fault Status Code 25, Invalid Motor / Model SelectionCheck for Refrigerant Leaks Start-Up AdjustmentsSequence of Operation Typical Heat Pump Operation, Cooling Mode Defrost Control Electric Heat Pressure Drop Table Small Cabinet Unit Operation Hazard MaintenancePersonal Injury and Unit Damage Hazard Outdoor Coil, Indoor Coil, and Condensate Drain Pan Air FilterIndoor Blower and Motor Outdoor FanMetering Devices-TXV & Accurater Piston Pressure SwitchesIndoor Airflow Personal INJURY, Unit Operation Hazard High-Pressure SwitchEXPLOSION, FIRE, Electrical Shock Hazard START-UP Checklist LOSS-OF-CHARGE SwitchTroubleshooting System InformationObserve all warnings, cautions, and bold text Troubleshooting Chart Troubleshooting Chart Cont’d Head pressure too lowSTART-UP Checklist