Carrier PY4G B Series Installation Instructions Manual

1PY4G----BPY4G----EInstallation Instructions14 SEER SINGLE ---PACKAGED AIR CONDITIONER ANDGAS FURNACE SYSTEM WITH R ---410A REFRIGERANTSINGLE PHASE 2---5 NOMINAL TONS (SIZES 24---60)THREE PHASE 3---5 NOMINAL TONS (SIZES 36---60)IMPORTANT: 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--12. . . . . . . . . . . . . . . . .Check Equipment 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Identify Unit 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inspect Shipment 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Provide Unit Support 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Roof Curb 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Slab Mount 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Field Fabricate Ductwork 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .Provide Clearances 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rig and Place Unit 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inspection 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rigging/Lifting of Unit 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .Connect Condensate Drain 8. . . . . . . . . . . . . . . . . . . . . . . . . . .Install Flue Hood 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Install Gas Piping 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Install Duct Connections 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .Configuring Units for Downflow (Vertical)Discharge 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Install Electrical Connections 11. . . . . . . . . . . . . . . . . . . . . . . .High--Voltage Connections 11. . . . . . . . . . . . . . . . . . . . . . . .Special Procedures for 208--V Operation 11. . . . . . . . . . . . . .Control Voltage Connections 11. . . . . . . . . . . . . . . . . . . . . . .Standard Connection 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Heat Anticipator Setting 12. . . . . . . . . . . . . . . . . . . . . . . . . .Transformer Protection 12. . . . . . . . . . . . . . . . . . . . . . . . . . .PRE--START--UP 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .START--UP 13--24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Check for Refrigerant Leaks 13. . . . . . . . . . . . . . . . . . . . . . . . .Start--Up Heating & Make Adjustments 13. . . . . . . . . . . . . . . .Check Heating Control 13. . . . . . . . . . . . . . . . . . . . . . . . . . .Check Gas Input 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Adjust Gas Input 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Check Burner Flame 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Normal Operation 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Airflow and Temperature Rise 22. . . . . . . . . . . . . . . . . . . . . .Heating Sequence of Operation 22. . . . . . . . . . . . . . . . . . . . .Limit Switches 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rollout Switch 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Start--Up Cooling & Make Adjustments 22. . . . . . . . . . . . . . . .Checking Cooling Control Operation 22. . . . . . . . . . . . . . . .Checking & Adjusting Refrigerant Charge 23. . . . . . . . . . . .Indoor Airflow and Airflow Adjustments 23. . . . . . . . . . . . .Cooling Sequence of Operation 24. . . . . . . . . . . . . . . . . . . . .A09183Fig. 1 -- Unit PY4G(Low NOx Model Available)MAINTENANCE 50--53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Air Filter 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Indoor Blower and Motor 50. . . . . . . . . . . . . . . . . . . . . . . . .Induced Draft (Combustion Air) Blower 51. . . . . . . . . . . . . .Flue Gas Passageways 51. . . . . . . . . . . . . . . . . . . . . . . . . . . .Limit Switch 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Burner Ignition 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Main Burners 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Removal of Gas Train 51. . . . . . . . . . . . . . . . . . . . . . . . . . . .Outdoor Coil, Indoor Coil, & Condensate Drain Pan 51. . . .Outdoor Fan 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Electrical Controls and Wiring 52. . . . . . . . . . . . . . . . . . . . .Refrigerant Circuit 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Gas Input 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Evaporator Airflow 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .R--410A Items 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TROUBLESHOOTING 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .START--UP CHECKLIST 54. . . . . . . . . . . . . . . . . . . . . . . . . . . .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 local