Carrier 38AUZ appendix Appendix

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APPENDIX

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.

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Contents Safety Considerations ContentsReplacement /Retrofit R22 to Puron Installation Guideline38AUZ*07-14 Unit Dimensions Refrigerant Type Unit Size 38AUCompressor Condenser FansPressurestat Settings kPa High Cutout Operating Weight kg Aluminum-Fin Coils StandardNominal Capacity kW Operating Charge, Typical kg† Shipping Charge kgModel Type Service OptionsType of Coil Refrigerant OptionsInstallation Refrigerant Piping Sizes 38AUZ*07-14 60 Hz Units Liquid Line Data 38AUZ*07-14 60 Hz UnitsField Power Supply Install AccessoriesComplete Electrical Connections Refrigerant Specialities Part NumbersUnits with Factory-Installed Disconnect Units Without Factory-Installed DisconnectConvenience Outlets All unitsUnit Connect Primary Transformer Installing Weatherproof CoverConnections Terminals Thermostat Weatherproof Cover InstallationElectrical Data 38AUZ*07-14 Hz Units START-UP PRE-START-UPSystem Check Advanced Scroll Temperature Protection Label 38AUZ*07 Charging Chart 38AUZ*14 Charging Chart Operating Sequence Routine System MaintenanceBase Unit Controls Comfort Alert Diagnostic Module ServiceInput Lockout LED Status CodesCompressor Protection Cadm TroubleshootingLubrication Repairing Novation Condenser Tube Leaks Novation Coil Cleaning and MaintenanceField Refrigerant Access Ports Factory High-Flow Access PortsProblem Solution Compressor does not RUN TroubleshootingCompressor Stops on HIGH-PRESSURE Switch Fastener Torque ValuesCompressor Running but Cooling Insufficient Problem Solution Compressor Cycles on LOW-PRESSURE SwitchUnit Operates TOO Long or Continuously System is NoisyAppendix Catalog No 38AU-01SI Preliminary Information CUT Along Dotted Linecut Along Dotted Line

38AUZ specifications

The Carrier 38AUZ series is a line of air conditioning systems specifically designed to deliver optimal comfort and energy efficiency for both residential and commercial applications. Known for their advanced technology and robust performance, these units are ideal for a variety of climate conditions, ensuring consistent cooling and heating throughout the year.

One of the standout features of the Carrier 38AUZ series is its inverter technology, which allows the unit to adjust its cooling or heating output in real-time based on the ambient conditions. This results in lower energy consumption and reduced operating costs, making the system not only environmentally friendly but also budget-conscious. By minimizing temperature fluctuations, the inverter design promotes a more stable and comfortable indoor environment.

The 38AUZ units are equipped with high-efficiency compressors that enhance the system’s performance. These compressors operate quietly and efficiently, contributing to a lower noise level that is ideal for residential settings. Furthermore, they come with variable speed fan motors which offer precise airflow control, allowing users to customize their comfort level while ensuring energy savings.

In terms of build quality, the Carrier 38AUZ is constructed using durable materials designed to withstand harsh weather conditions. Its compact design allows for easy installation and maintenance, making it an ideal choice for urban environments where space is limited. Additionally, the system features a corrosion-resistant cabinet that extends its lifespan and maintains aesthetic appeal.

The 38AUZ series also includes a range of advanced control options. Users can benefit from smart technology integration, allowing for remote temperature control and scheduling through mobile devices. This feature not only enhances convenience but also provides users with complete control over their energy usage.

Moreover, the Carrier 38AUZ units come with various capacity options, catering to different space requirements. With a focus on energy efficiency, these systems often meet or exceed industry standards, including SEER ratings, ensuring optimal performance without sacrificing energy consumption.

In summary, the Carrier 38AUZ series is an exemplary choice for anyone looking to invest in a reliable, efficient, and advanced air conditioning system. With its inverter technology, high-efficiency compressors, smart control options, and durable construction, the 38AUZ not only delivers exceptional comfort but also promotes energy conservation, making it a smart choice for sustainable living.
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