Carrier 48EZ(N)-A installation instructions 48EZ a

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48EZ A--

A10207C

Fig. 14 - 208/230-1-60 Connection Wiring Diagram, Unit 48EZ-A

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Image 27

Contents Safety Considerations Table of ContentsProvide Unit Support Receiving and InstallationIntroduction Check Equipment48EZ-A24-36 Unit Dimensions 48EZ-A42-60 Unit Dimensions Number Roof Curb DimensionsInspection Field Fabricate DuctworkProvide Clearances Rig and Place UnitRigging/Lifting of Unit See Fig Install Flue HoodInstall Gas Piping Connect Condensate DrainSediment Trap Fire or Explosion HazardConfiguring Units for Downflow Vertical Discharge Install Duct ConnectionsPhysical Data Unit 48EZ-A Physical Data Unit 48EZ-A Cont’d Maximum Gas Flow CapacityHeating Inputs Unit Component Damage Hazard Install Electrical ConnectionsSpecial Procedures for 208-V Operation High-Voltage ConnectionsTransformer Protection Balance Point Setting-Thermidistat or Hybrid ThermostatPRE-START-UP Control Voltage ConnectionsUnit Sequence of Operation Start-up Heating and Make Adjust- mentsSTART-UP Check for Refrigerant LeaksAdjust Gas Input Check Gas InputUnit Damage Hazard Start-up Cooling and Make Adjust- ments Unit Operation Hazard Checking and Adjusting Refrigerant ChargeIndoor Airflow and Airflow Adjustments Gas Heating Fan Speed Set-upTwo Cooling Fan Speeds Set-up Dehumidification feature used Continuous Fan OperationColor Coding for Indoor Fan Motor Leads Dry Coil Air Delivery* Horizontal Unit 48EZ-A24-60 Unit Heating Rise MotorRange Speed Color Dry Coil Air Delivery* Horizontal Discharge Unit 48EZ-A24-60 1354 1290 1226 1158 1102 1046 981 918 843 55oF Heating Rise Medium1 48EZ ---,NA48090 48EZ ---,NA48130 Unit Heating Rise Motor Wire Cooling Standard CFM Scfm Horizontal and Downflow Filter Pressure Drop Table IN. W.CUnit Standard CFM Scfm Size Downflow Cooling Standard CFM Scfm Economizer + Tons48EZ a 208/230-1-60 Ladder Wiring Diagram, Unit 48EZ-A 208/230-3-60 Connection Wiring Diagram, Unit 48EZ-A Cont. 208/230-3-60 Ladder Wiring Diagram, Unit 48EZ-A Cooling Charging Table-Subcooling Indoor Blower and Motor MaintenanceCleaning the Blower Motor and Wheel Air FilterMain Burners Limit SwitchInduced Draft combustion air Blower Assembly Burner IgnitionElectrical Controls and Wiring Outdoor FanRefrigerant Circuit Indoor Airflow Pressure SwitchesLoss of Charge Switch Gas InputHigh-Pressure Switch Copeland Scroll Compressor Puron RefrigerantExplosion Hazard Unit Operation and Safety Hazard Refrigerant SystemCompressor Oil Troubleshooting START-UP ChecklistPuronr R-410A Quick Reference Guide Symptom Cause Remedy Troubleshooting Guide Cooling or Heat Pump Heating ModeTroubleshooting Guide-Heating Troubleshooting Guide-LED Error CodesLED OFF III. START-UP Electrical Supply Voltage Compressor Amps TemperaturesRemove and Store in Job Files Preliminary Information Model no