Carrier 38AUQ appendix Appendix a, Appendix B

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APPENDIX A

AIR CONDITIONER AND HEAT PUMP WITH PURON® — QUICK REFERENCE GUIDE

•Puron® (R-410A) refrigerant operates at 50 percent to 70 percent higher pressures than R-22. Be sure that servicing equipment and replacement components are designed to operate with Puron®.

•Puron® refrigerant cylinders are rose colored.

•Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.

•Puron® systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose when charging into suction line with compressor operating.

•Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low-side retard.

•Use hoses with 700 psig service pressure rating.

•Leak detectors should be designed to detect HFC refirgerant.

•Puron®, as with other HFCs, is only compatible with POE oils.

•Vacuum pumps will not remove moisture from oil.

•Use only factory specified liquid-line filter driers with rated working pressures greater than 600 psig.

•Do not install a suction-line filter drier in liquid-line.

•POE oils absorb moisture rapidly. Do not expose oil to atmosphere.

•POE oils may cause damage to certain plastics and roofing materials.

•Wrap all filter driers and service valves with wet cloth when brazing.

•A factory approved, liquid-line filter drier is required on every unit.

•Do not use an R-22 TXV.

•If indoor unit is equipped with a TXV, it must be changed to a Puron® TXV.

•Never open system to atmosphere while it is under a vacuum.

•When system must be opened for service, recover refrigerant, break vacuum with dry nitrogen before opening system.

•Always replace filter drier after opening system for service.

•Do not vent Puron® into the atmosphere.

•Do not use capillary tube coils.

•Observe all warnings, cautions, and bold text.

•All Puron® heat pumps must have indoor TXV.

•Do not leave Puron® suction line driers in place for more than 72 hours.

APPENDIX B

WIRING DIAGRAM LIST

38AUQ

 

 

Size

Electrical Characteristics

Diagram Number

*07

208/230-3-60

38AU500363

 

460-3-60

38AU500362

 

575-3-60

38AU500435

*08

208/230-3-60

38AU500363

 

460-3-60

38AU500362

 

575-3-60

38AU500435

*12

208/230-3-60

38AU500363

 

460-3-60

38AU500362

 

575-3-60

38AU500435

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Contents Safety Considerations ContentsInstallation Guideline Replacement /Retrofit R22 to PuronInstallation 38AUQ*07-12 Unit Dimensions Operating Charge, Typical lb† Pressurestat Settings psig High CutoutShipping Charge lb Qty...TypePressurestat Settings kPa High Cutout Operating Weight kg Aluminum-Fin CoilsNominal Capacity kW Operating Charge, Typical kg†Model Type Service OptionsType of Coil Refrigerant OptionsInstallation 38AUQ*07-12 Piping Recommendations Single-Circuit Unit Maximum Vertical SeparationPuron-duty Filter Driers Insulation for Vapor Line Exposed To Outdoor Conditions Refrigerant Specialties Part NumbersInstall Accessories Field Power SupplyComplete Electrical Connections Units with Factory-Installed Disconnect Units Without Factory-Installed DisconnectConvenience Outlets All unitsConvenience Outlet Location Installing Weatherproof CoverThermostat Field Control WiringElectrical Data 38AUQ*07-12 Hz Units START-UP PRE-START-UPAdjust Refrigerant Charge Advanced Scroll Temperature Protection AstpStart Unit Final Checks38AUQ*07 Charging Chart 38AUQ Wiring Diagram 208/230-3-60 shown Base Unit Controls Operating SequenceService Routine System MaintenanceQuarterly Inspection 30 days after initial start Refrigeration SystemRefrigerant System Pressure Access Ports Field Refrigerant Access PortsLiquid Line Filter Drier Outdoor Coil Metering DevicesCompressor Protection Heat Pump ControlsCrankcase Heater Commercial Defrost ControlDefrost Dip Switch PositionReversing valve control Compressor controlIndoor Fan Off Delay Defrost ThermostatsDefrost Speedup Functions Fans Service Valves 38AUQ*08 Exterior 38AUQ*12 Exterior Input Comfort Alert Diagnostic ModuleLockout LED Status CodesPeriodic Clean Water Rinse Outdoor Coil Maintenance and Cleaning RecommendationRoutine Cleaning of Indoor Coil Surfaces LubricationService Parts Fastener Torque ValuesTorque Values Troubleshooting Appendix B Appendix aCatalog No 38AUQ-01SI Appendix CPreliminary Information CUT Along Dotted Linecut Along Dotted Line

38AUQ specifications

The Carrier 38AUQ is a versatile and efficient air conditioning unit designed to meet a variety of residential and light commercial cooling needs. Known for its advanced technology and robust performance, the 38AUQ model showcases Carrier's commitment to sustainability and energy efficiency.

One of the standout features of the Carrier 38AUQ is its use of variable-speed inverter technology. This allows the unit to adjust its cooling output in response to the temperature demands of the environment. By operating at multiple speed levels, it minimizes energy consumption and maximizes comfort, ensuring a consistent, quiet cooling experience.

The 38AUQ is equipped with a high-efficiency compressor, which helps to further enhance its energy performance. This component plays a critical role in ensuring that the unit operates smoothly, reducing both electricity bills and the environmental impact. Efficiency ratings often exceed industry standards, making the 38AUQ a suitable choice for those looking to reduce their carbon footprint while enjoying a comfortable indoor climate.

In terms of design, the Carrier 38AUQ boasts a compact and sleek profile that allows for easy installation in a variety of settings. Its durable construction is built to withstand harsh weather conditions, ensuring longevity and reliability. Additionally, an advanced air purification system is integrated, featuring filters that capture airborne particles, improving indoor air quality.

The unit also offers a range of smart features, including compatibility with smart home systems. Users can remotely control their air conditioning via smartphone apps, allowing for customizable settings and energy management from anywhere. This connectivity aligns with modern living preferences, enhancing convenience and control.

Furthermore, the Carrier 38AUQ is designed with noise reduction in mind. The advanced sound-absorbing materials and quiet operation of its fan and compressor make it one of the quieter air conditioning options on the market. This is particularly beneficial for residential applications, where noise can be a significant concern.

Overall, the Carrier 38AUQ combines cutting-edge technology, energy efficiency, and user-friendly features, making it a top choice for both homeowners and small business operators seeking reliable cooling solutions. Its commitment to performance and efficiency makes it a standout model in the Carrier air conditioning lineup.
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