38AUZ*25 Compressor Assembly Rear View | Carrier instruction

38AU

C10215

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

C10091

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

41

Image 41

Carrier appendix 38AUZ*25 Compressor Assembly Rear View

Contents

Contents Installation, Start---Up Service Instructions Replacement/Retrofit R-22 to PuronR Safety ConsiderationsInstallation Guideline Unit Damage Hazard Installation Rtpf UnitMchx 38AUD*25 38AUZ*25 Refrigerant TYPE‡ Unit Size 38AUCompressor Condenser Fans Nominal Capacity kW Pressurestat Settings kPa High CutoutRtpf Shipping Charge kg Scroll Face Area sq ft total Rows/Fins per inch FPI Rtpf Shipping Charge A/B lbOil Charge A/B oz Rtpf Shipping Charge A/B kg Operating Weight kg Novation Coil Al TubeOil Charge A/B L Qty...r/s Motor Hp Nema Diameter mm U Z a 2 5 a 0 G 6 a 0 a 0 a Matching 38AU Model To Evaporator Coil InstallationJobsite Survey Do not Bury Refrigeration Lines Slab Mount Provide Safety ReliefEquivalent Lengths for Common Fittings ft Check 38AU Model with Evaporator Coil Connections 38AUZ 16-25 Piping Recommendations Single-Circuit Unit Liquid LiftSuction Riser Vertical Separation outdoor unit above indoor unit 38AUD 16-25 Piping Recommendations Two-Circuit UnitInsulate Suction Lines Hot Gas Bypass Refrigerant Specialties Part Numbers Install Filter Driers and Moisture Indicators Capacity Control Liquid Line Solenoid Valve Install Liquid Line Solenoid ValveSelecting an Accumulator Make Piping Connections Preliminary Charge Evacuation/Dehydration Units with Factory-Installed Disconnect Field Power SupplyFire Hazard All Units Electrical Operation Hazard Convenience Outlets Convenience Outlet Utilization Notice Label Field Control Wiring Thermostat Control Transformer Wiring Unbalanced 3-Phase Supply Voltage Unit Wire/Fuse or Hacr Breaker Sizing Data START-UP PRE-START-UPSystem Check Preliminary Checks Adjust Refrigerant Charge Advanced Scroll Temperature Protection AstpUsing plotted operating point Start Unit Final Checks 38AUZ*25 Check Compressor Oil Level 38AUD*16 Charging Chart Novation 38AUZ*16 Charging Chart Rtpf 38AUD*16 Charging Chart Rtpf 38AUD*25 Charging Chart Rtpf Typical 38AUZ Wiring Diagram 15 Ton 230V Tandem Unit Shown Typical 38AUD Wiring Diagram 15 Ton 230V Dual Unit Shown Base Unit Controls Operating Sequence Service Routine System MaintenanceRefrigeration System Equipment Damage Hazard Liquid Line Filter Drier Field Refrigerant Access PortsFactory High-Flow Access Ports Input Terminal Voltage Comfort Alert Diagnostic Module Lockout LED Status Codes Compressor Protection 38AUD Size 16 Cabinet LPS 38AUZ,D Size 25 Cabinet 38AUZ*25 Compressor Assembly Rear View Repairing Novation Condenser Tube Leaks Novation Coil Cleaning and MaintenanceCoil Type Identification NOVATIONt Type Unit Reliability Hazard Routine Cleaning of Round-Tube Plate Fin Rtpf CoilsReplacing NOVATIONt Condenser Coil Problem Solution Compressor does not RUN TroubleshootingCompressor Stops on HIGH-PRESSURE Switch Fastener Torque Values Compressor Running but Cooling Insufficient Problem Solution Compressor Cycles on LOW-PRESSURE SwitchUnit Operates TOO Long or Continuously System is Noisy Appendix B Wiring Diagram ListAppendix a Troubleshooting Low Ambient Option Factory InstalledAppendix C Operation 38AUZ*16 & 38AUD*16 Novation 38AUZ*16/25 & 38AUD*16/25 Rtpf Motormaster Sensor Location Dimensions --- MM Unit Baffle Wind Baffle DimensionDimensions --- Inches Unit Baffle Wind Baffles Fabrication 15 Ton Wind Baffle Brackets Fabrication Front Front Back Left Right Catalog No 38AU---09SI II. PRE-START-UP Outdoor Unit START-UP Checklist Check Voltage Imbalance