Carrier 48EZ(N)-A installation instructions Cooling Charging Table-Subcooling

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48EZ -- A

A08019

Fig. 16 - Cooling Charging Table-Subcooling

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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 Maximum Gas Flow Capacity Physical Data Unit 48EZ-A Cont’dHeating 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 LeaksCheck Gas Input Adjust 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-upContinuous Fan Operation Two Cooling Fan Speeds Set-up Dehumidification feature usedColor Coding for Indoor Fan Motor Leads Unit Heating Rise Motor Dry Coil Air Delivery* Horizontal Unit 48EZ-A24-60Range 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 IgnitionOutdoor Fan Electrical Controls and WiringRefrigerant Circuit Indoor Airflow Pressure SwitchesLoss of Charge Switch Gas InputCopeland Scroll Compressor Puron Refrigerant High-Pressure SwitchExplosion Hazard Refrigerant System Unit Operation and Safety HazardCompressor Oil START-UP Checklist TroubleshootingPuronr R-410A Quick Reference Guide Symptom Cause Remedy Troubleshooting Guide Cooling or Heat Pump Heating ModeTroubleshooting Guide-LED Error Codes Troubleshooting Guide-HeatingLED OFF III. START-UP Electrical Supply Voltage Compressor Amps TemperaturesRemove and Store in Job Files Preliminary Information Model no