Carrier Infinity 480CEN024 Installation Instruction

to the Expertg[Installation InstructionsNOTE: 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 CONTENTSPageSAFETY CONSIDERATIONS ........................ 1INTRODUCTION .................................. 2RECEIVING AND INSTALLATION ................ 2-15Check Equipment ................................. 2Identify Unit ................................... 2Inspect Shipment ................................ 2Provide Unit Support .............................. 2Roof Curb ..................................... 2Slab Mount .................................... 2Ground Mount ................................. 2Field Fabricate Duc_vork ........................... 2Provide Clearances ................................ 3Rig and Place Unit ................................ 3Inspection ..................................... 3Use of Rigging Bracket ........................... 3Connect Condensate Drain .......................... 8Install Flue Hood .................................. 8Install Gas Piping ................................ 11Install Duct Connections ........................... 12Configuring Units for Downflow (Vertical)Discharge .................................... 12Install Electrical Connections ....................... 12Transfornmr Protection .......................... 13High- Voltage Connections ....................... 13Special Procedures for 208-V Operation ............. 14Control Voltage Connections ...................... 14Optional Accessories .............................. 14Outdoor Air Thermistor (OAT) .................... 14Humidifier Connections ......................... 15Electronic Air Cleaner ........................... 15PRE-START-UP ............................... 15-16START-UP AND TROUBLESHOOTING ........... 16-20Check for Refrigerant Leaks ........................ 16Unit Start-Up ................................... 16LED Description ............................... 16Control Start-Up ............................... 16ECM Motor Troubleshooting ..................... 17Verify Motor Winding Section .................... 17Motor Turns Slowly ............................ 17Sequence of Operation ............................ 17Gas Heat Mode and Adjustments .................. 17Check Gas Input ............................... 17Adjust Gas Input ............................... 18Check Burner Flanm ............................ 18Airflow and Temperature Rise ..................... 18Limit Switches ................................ 19Rollout Switch ................................ 19Cooling Mode ................................. 19Checking and Adjusting Refrigerant Charge .......... 19A05307Fig. 1 - Unit 48CEDehumidification Mode ......................... 19Continuous Fan Mode ........................... 20Component Test ............................... 20Unit Troubleshooting ............................. 20Indoor Airflow and Airflow Adjustments .............. 21MAINTENANCE ............................... 24-26Air Filter ....................................... 24Indoor Blower and Motor .......................... 24Outdoor Coil, Indoor Coil. & Condensate Drain Pan ..... 24Outdoor Fan .................................... 24Electrical Controls and Wiring ...................... 25Refrigerant Circuit ................................ 25Indoor Airflow .................................. 25Metering Devices-TXV & AccuRater ' Piston ......... 25Pressure Switches ................................ 25Loss-of-Charge Switch ........................... 25High Pressure Switch ............................. 25Copeland Scroll Compressors (Puron Refrigerant) ....... 25Refrigerant System ............................... 25Refrigerant ................................... 25Compressor Oil ................................ 25Servicing Systems on Roofs with Synthetic Materials ... 26Liquid Line Filter Drier .......................... 26Puron (R-410A) Refrigerant Charging .............. 26TROUBLESHOOTING ............................. 26START-UP CHECKLIST ........................... 26SAFETY CONSIDERATIONSInstallation and servicing of this equipment can be hazardous due tomechanical and electrical components. Only trained and qualifiedpersonnel should install, repair, or service this equipment.