Manuals / Carrier / Household Appliance / Air Conditioner

Carrier 38AUZ25 Compressor Assembly Rear View, 38AUD25 Compressor Assembly Rear View, C10215

Models: 38AU

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38AU

C10215

Fig. 40 - 38AUZ*25 Compressor Assembly (Rear View)

C10091

Fig. 41 - 38AUD*25 Compressor Assembly (Rear View)

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Carrier appendix 38AUZ*25 Compressor Assembly Rear View, 38AUD*25 Compressor Assembly Rear View, C10215, C10091

Contents

Installation, Start---Upand Service Instructions CONTENTS38AU Air Cooled Condensing Units 60 Hz With PuronR R---410ARefrigerant SizesINSTALLATION GUIDELINE SAFETY CONSIDERATIONSReplacement/Retrofit - R-22to PuronR UNIT OPERATION AND SAFETY HAZARD38AU InstallationUNIT DAMAGE HAZARD 38AU Fig. 1 - 38AU**16 Unit Dimensions38AU Fig. 2 - 38AU**25 Unit DimensionsUNIT 38AUZ*25UNIT SIZE 38AU 38AUUNIT SIZE 38AU 38AUUNIT SIZE 38AU 38AUUNIT SIZE 38AU 38AUFig. 3 - Model Number Nomenclature 3 8 A U Z A 2 5 A 0 G 6 A 0 A 0 AFig. 4 - Serial Number Nomenclature 38AUStep 2 - Complete Pre-InstallationChecks INSTALLATIONFig. 5 - Service Clearance Dimensional Drawing Matching 38AU Model To Evaporator CoilStep 3 - Prepare Unit Mounting Support Provide Safety ReliefStep 4 - Rig and Mount the Unit Step 5 - Complete Refrigerant Piping ConnectionsSuction Riser Liquid Lift38AU ModelHot Gas Bypass Insulate Suction Lines38AUD Piping Connections 38AUInstall Filter Driers and Moisture Indicators Fig. 6 - 38AUD Service Valve LocationsFig. 7 - Typical Evaporator Coil Connections 40RU Puron-dutyFilter DriersTypical 38AUZ Systems Install Liquid Line Solenoid ValveTypical 38AUD Systems Capacity Control Liquid Line Solenoid ValveFig. 10 - Typical Piping Connection Assembly Step 6 - Install AccessoriesEvacuation/Dehydration Preliminary ChargeFig. 11 - Disconnect Switch and Unit Field Power SupplyUnits Without Factory-InstalledDisconnect Units with Factory-InstalledDisconnectFig. 14 - Powered Convenience Outlet Wiring Fig. 12 - Power Wiring ConnectionsConvenience Outlets ELECTRICAL OPERATION HAZARDField Control Wiring Fig. 16 - Weatherproof Cover InstallationConvenience Outlet Utilization 38AUControl Transformer Wiring 38AUD Control Circuit WiringFig. 19 - Control Transformer Wiring ThermostatLegend and Notes for Table 5.Unbalanced 3-PhaseSupply Voltage38AU PRE-START-UP To correct phase orderSTART-UP System CheckAdjust Refrigerant Charge Advanced Scroll Temperature Protection ASTPUsing plotted operating point Start Unit38AUZ*25 Check Compressor Oil Level Fig. 23 - 38AUZ*16 Charging Chart NovationFig. 22 - Recommended Oil Level - 38AUZ*25 Final Checks38AU Fig. 24 - 38AUD*16 Charging Chart NovationCIRCUIT CIRCUITFig. 26 - 38AUZ*25 Charging Chart RTPF Fig. 25 - 38AUZ*16 Charging Chart RTPF38AU C10947C10949 Fig. 27 - 38AUD*16 Charging Chart RTPF38AU C10950 Fig. 28 - 38AUD*25 Charging Chart RTPF38AU C10212A 38AUC10213A 38AUBase Unit Controls OPERATING SEQUENCEIndoor Supply Fan Cooling, Unit Without EconomizerSERVICE ROUTINE SYSTEM MAINTENANCESeasonal Maintenance Synthetic Roof Precautionary ProcedureFactory High-FlowAccess Ports Field Refrigerant Access PortsFig. 31 - CoreMax Access Port Assembly SEAT38AU Comfort Alert Diagnostic ModuleFig. 32 - CADM Housing/LED Locations Status LED Troubleshooting Information Table 11 - LED Status Codes38AU Status LEDCompressor Overtemperature Protection IP Table 12 - CADM TroubleshootingLow-PressureSwitch High-PressureSwitchCompressors Service Valves Condenser Fans/Motors Access Panel Control BoxFig. 34 - 38AUD Size 16 Cabinet Fig. 35 - 38AUD*16 PipingFig. 37 - 38AUD*16 Compressor Assembly Rear View Fig. 36 - 38AUZ*16 Compressor Assembly Rear ViewEqualization LPS Oil Equalizer LineFig. 39 - 38AUD*25 Piping Fig. 38 - 38AUZ,D Size 25 CabinetCondenser Fans/Motors Access Panel Control Box Compressors Service ValvesFig. 41 - 38AUD*25 Compressor Assembly Rear View Fig. 40 - 38AUZ*25 Compressor Assembly Rear View38AU C10215Repairing NOVATION Condenser Tube Leaks NOVATION Coil Cleaning and MaintenanceCoil Type Identification NOVATIONt TypeUNIT RELIABILITY HAZARD Replacing NOVATIONt Condenser CoilUNIT DAMAGE HAZARD 38AUFASTENER TORQUE VALUES TROUBLESHOOTINGTable 13 - Torque Values 38AU38AU TROUBLESHOOTING contAPPENDIX A Wiring Diagram ListAPPENDIX B Air Conditioner & Heat Pump with PURON→Troubleshooting Low Ambient Option - Factory InstalledAPPENDIX C OperationFig. 45 - Motormaster Sensor Location Fig. 44 - Motormaster Sensor Location38AUZ*16 & 38AUD*16 Novation 38AUZ*16/25 & 38AUD*16/25 RTPF38AU Table 14 - Wind Baffle DimensionC10363A Fig. 46 - Wind Baffles - Fabrication38AU C10366 38AUFRONT Fig. 48 - Wind Baffle Installation - 15 Ton UnitsLEFT BACKFRONT Fig. 49 - Wind Baffle Installation - 20 Ton UnitsBACK LEFTCatalog No 38AU---09SI 38AUEdition Date 11/10 Replaces 38AU---07SII. PRELIMINARY INFORMATION START-UPCHECKLISTII. PRE-START-UP OUTDOOR UNIT38AU CHECK VOLTAGE IMBALANCE