148VG ---A and 48VG ---EPerformancet 15---16 SEER 2---Stage Packaged AirConditioner and Gas Furnace System with Puron(R ---410A) RefrigerantSingle and Three Phase2---5 Nominal Tons (Sizes 24---60)Installation InstructionsIMPORTANT: Effective January 1, 2015, all split system andpackaged air conditioners must be installed pursuant to applicableregional efficiency standards issued by the Department of Energy.NOTE: Read the entire instruction manual before starting theinstallation.NOTE: Installer: Make sure the Owner’s Manual and ServiceInstructions are left with the unit after installation.TABLE OF CONTENTS PAGESAFETY CONSIDERATIONS 1. . . . . . . . . . . . . . . . . . . . . . . . .INTRODUCTION 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RECEIVING AND INSTALLATION 2--14. . . . . . . . . . . . . . . . .Check Equipment 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Identify Unit 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inspect Shipment 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Provide Unit Support 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Roof Curb 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Slab Mount 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Field Fabricate Ductwork 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .Provide Clearances 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rig and Place Unit 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inspection 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rigging/Lifting of Unit 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .Connect Condensate Drain 10. . . . . . . . . . . . . . . . . . . . . . . . . .Install Flue Hood 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Install Gas Piping 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Install Duct Connections 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .Configuring Units for Downflow (Vertical)Discharge 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Install Electrical Connections 13. . . . . . . . . . . . . . . . . . . . . . . .High--Voltage Connections 13. . . . . . . . . . . . . . . . . . . . . . . .Special Procedures for 208--V Operation 13. . . . . . . . . . . . . .Control Voltage Connections 13. . . . . . . . . . . . . . . . . . . . . . .Standard Connection 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Heat Anticipator Setting 14. . . . . . . . . . . . . . . . . . . . . . . . . .Transformer Protection 14. . . . . . . . . . . . . . . . . . . . . . . . . . .PRE--START--UP 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .START--UP 15--30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Check for Refrigerant Leaks 15. . . . . . . . . . . . . . . . . . . . . . . . .Start--Up Heating & Make Adjustments 15. . . . . . . . . . . . . . . .Check Heating Control 15. . . . . . . . . . . . . . . . . . . . . . . . . . .Check Gas Input 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Adjust Gas Input 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Check Burner Flame 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Normal Operation 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Airflow and Temperature Rise 28. . . . . . . . . . . . . . . . . . . . . .Heating Sequence of Operation 28. . . . . . . . . . . . . . . . . . . . .Limit Switches 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rollout Switch 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Start--Up Cooling & Make Adjustments 28. . . . . . . . . . . . . . . .Checking Cooling Control Operation 28. . . . . . . . . . . . . . . .Checking & Adjusting Refrigerant Charge 29. . . . . . . . . . . .Indoor Airflow and Airflow Adjustments 29. . . . . . . . . . . . .Cooling Sequence of Operation 30. . . . . . . . . . . . . . . . . . . . .A09033Fig. 1 -- Unit 48VG(Low NOx Model Available)MAINTENANCE 65--68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Air Filter 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Indoor Blower and Motor 65. . . . . . . . . . . . . . . . . . . . . . . . .Induced Draft (Combustion Air) Blower 66. . . . . . . . . . . . . .Flue Gas Passageways 66. . . . . . . . . . . . . . . . . . . . . . . . . . . .Limit Switch 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Burner Ignition 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Main Burners 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Removal of Gas Train 66. . . . . . . . . . . . . . . . . . . . . . . . . . . .Outdoor Coil, Indoor Coil, & Condensate Drain Pan 66. . . .Outdoor Fan 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Electrical Controls and Wiring 67. . . . . . . . . . . . . . . . . . . . .Refrigerant Circuit 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Gas Input 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Evaporator Airflow 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Puron Items 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TROUBLESHOOTING 69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .START--UP CHECKLIST 69. . . . . . . . . . . . . . . . . . . . . . . . . . . .SAFETY CONSIDERATIONSImproper installation, adjustment, alteration, service maintenance,or use can cause explosion, fire, electrical shock, or otherconditions which may cause death, personal injury, or propertydamage. Consult a qualified installer, service agency, or yourdistributor or branch for information or assistance. The qualifiedinstaller or agency must use factory--authorized kits or accessorieswhen modifying this product. Refer to the individual instructionspackaged with the kits or accessories when installing.Follow all safety codes. Wear safety glasses, protective clothing,and work gloves. Have a fire extinguisher available. Read theseinstructions thoroughly and follow all warnings or cautionsincluded in literature and attached to the unit. consult localbuilding codes, the current editions of the National Fuel Gas Code(NFGC) NFPA 54/ANSI Z223.1, and the National Electrical Code(NEC) NFPA 70.In Canada refer to the current editions of the National Standards ofCanada CAN/CSA--B149.1 and .2 Natural Gas and PropaneInstallation codes, and Canadian Electrical Code CSA C22.1