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Carrier installation instructions 208/230-3-60Wiring Diagram, Unit 48EZ-A, 48EZ --A, A09209

Models: 48EZ-A

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48EZ -- A

A09209

Fig. 16 - 208/230-3-60 Wiring Diagram, Unit 48EZ-A

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Carrier installation instructions 208/230-3-60Wiring Diagram, Unit 48EZ-A, 48EZ --A, A09209

Contents

Fig. 1 - Unit 48EZ-A TABLE OF CONTENTSSAFETY CONSIDERATIONS Installation InstructionsINTRODUCTION RECEIVING AND INSTALLATIONInstallation on older “G” series roof curbs Step 1 — Check EquipmentA09450 Fig. 2 - 48EZ-A24-36Unit Dimensions48EZ --A A09451 Fig. 3 - 48EZ-A42-60Unit Dimensions48EZ --A ROOF CURB DETAIL Fig. 4 - Roof Curb DimensionsSMALL CURB LARGE CURBStep 4 — Provide Clearances ACCESS PANELS MUST BE IN PLACE WHEN RIGGINGStep 5 — Rig and Place Unit Fig. 5 - 48EZ-ASuggested RiggingStep 6 — Connect Condensate Drain Step 7 — Install Flue HoodStep 8 — Install Gas Piping InspectionFig. 7 - Sediment Trap TEE NIPPLE CAPFIRE OR EXPLOSION HAZARD 48EZ --ATable 1 – Physical Data - Unit 48EZ-A 48EZ --ATable 3 – Heating Inputs Table 1 - Physical Data - Unit 48EZ-ACont’dTable 2 – Maximum Gas Flow Capacity 48EZ --AAlternate Method Step 9 — Install Duct ConnectionsConfiguring Units for Downflow Vertical Discharge UNIT COMPONENT DAMAGE HAZARDUnderside of Base Alternate Method Return Duct PanelsReturn & Supply Duct Panels from Fig. 8 - Supply and Return Duct OpeningHigh-VoltageConnections Step 10 — Install Electrical ConnectionsSpecial Procedures for 208-VOperation Control Voltage Connections48EZ Balance Point Setting-Thermidistator HybridPRE-START-UP ThermostatSTART-UP Step 3 - Start-upHeating and Make Adjust- mentsFig. 11 - Burner Assembly Step 1 — Check for Refrigerant LeaksCheck Gas Input Adjust Gas InputCheck Heating Control Fig. 12 - Monoport BurnerRollout Switch Airflow and Temperature RiseLimit Switches Check Burner FlameIndoor Airflow and Airflow Adjustments Step 4 - Start-upCooling and Make Adjust- mentsChecking and Adjusting Refrigerant Charge Checking Cooling Control OperationTable 6 – Color Coding for Indoor Fan Motor Leads Gas Heating Fan Speed Set-upContinuous Fan Operation Fig. 14 - Interface Fan Board IFB48EZ --A Table 7 – Filter Pressure Drop Table IN. W.CTable 8 – 48EZ-AWet Coil Pressure Drop IN. W.C FILTER SIZE48EZ --A Heating48EZ --A 123448EZ --A 140248EZ --A 1445Fig. 15 - 208/230-1-60Wiring Diagram, Unit 48EZ-A 48EZ AA09209 Fig. 16 - 208/230-3-60Wiring Diagram, Unit 48EZ-A48EZ --A A08019 Fig. 17 - Cooling Charging Table-Subcooling48EZ --A Air Filter MAINTENANCECleaning the Blower Motor and Wheel Indoor Blower and MotorFig. 18 - Blower Housing and Flue Collector Box Limit SwitchInduced Draft combustion air Blower Assembly Fig. 19 - Unit Access PanelsRefrigerant Circuit Electrical Controls and WiringOutdoor Fan Fig. 20 - Removal of Motor and Blower WheelPage Copeland Scroll Compressor Puron Refrigerant High-PressureSwitchFig. 25 - Refrigerant Circuit EXPLOSION HAZARDRefrigerant System UNIT OPERATION AND SAFETY HAZARDLEGEND Compressor OilSynthetic Roof Precautionary Procedure TROUBLESHOOTINGSTART-UPCHECKLIST Liquid Line Filter DrierSYMPTOM 48EZ --A48EZ --A Table 12 – Troubleshooting Guide–HeatingTable 13 – Troubleshooting Guide–LEDError Codes I. PRELIMINARY INFORMATION MODEL NO TEMPERATURESRemove and Store in Job Files PRESSURESEdition Date: 08/09 48EZ --ACatalog No: 48EZ---06SI Replaces: 48EZ---05SI