Carrier Performance 48VGUK Installation Instructions Manual

Carrier Performance 48VGUK Installation Instructions Manual Manual pdf 1 page image

Installation InstructionsIMPORTANT: Effective January 1, 2015, all split system and packagedair conditioners must be installed pursuant to applicable regionalefficiency 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 ContentsTable of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Receiving and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Identify Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Inspect Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Slab Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Rigging/Lifting of Unit (See Fig. 6) . . . . . . . . . . . . . . . . . . . . . . 4Configuring Units for Downflow (Vertical) Discharge . . . . . . 11High-Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Special Procedures for 208-v Operation . . . . . . . . . . . . . . . . . . 13Control Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 13Standard Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Heat Anticipator Setting (Electro-Mechanical Thermostats only)14Transformer Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Pre-Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Check Heating Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Check Gas Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Adjust Gas Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Airflow and Temperature Rise . . . . . . . . . . . . . . . . . . . . . . . . . 22Heating Sequence of Operation (Ultra Low NOx Single and ThreePhase Models). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Limit Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Burner Thermal Switch (Ultra Low NOx) . . . . . . . . . . . . . . . . 22Checking Cooling Control Operation . . . . . . . . . . . . . . . . . . . . 22Checking and Adjusting Refrigerant Charge . . . . . . . . . . . . . . 23Indoor Airflow and Airflow Adjustments . . . . . . . . . . . . . . . . 23Cooling Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . 24Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Indoor Blower and Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Induced Draft (combustion air) Blower Assembly. . . . . . . . . . 37Flue Gas Passageways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Limit Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Burner Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Ultra Low NOx Burner Baffle Inspection/Cleaning (See Fig. 21.)38Outdoor Coil, Indoor Coil, and Condensate Drain Pan . . . . . . 39Outdoor Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Electrical Controls and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 39Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Gas Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Evaporator Airflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Puron (R-410A) Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Metering Device (Thermostatic Expansion Valve ) . . . . . . . . . 40Pressure Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Loss of Charge Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40High-Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Copeland Scroll Compressor (Puron [R-410A] Refrigerant) . . 40Refrigerant System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Start-up Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41A09033Fig. 1 – Unit 48VG Ultra Low NOxSafety ConsiderationsImproper installation, adjustment, alteration, service maintenance, or usecan cause explosion, fire, electrical shock, or other conditions whichmay cause death, personal injury, or property damage. Consult aqualified installer, service agency, or your distributor or branch forinformation or assistance. The qualified installer or agency must usefactory-authorized kits or accessories when modifying this product.Refer to the individual instructions packaged with the kits or accessorieswhen installing.Follow all safety codes. Wear safety glasses, protective clothing, andwork gloves. Have a fire extinguisher available. Read these instructionsthoroughly and follow all warnings or cautions included in literature andattached to the unit. consult local building codes, the current editions ofthe National Fuel Gas Code (NFGC) NFPA 54/ANSI Z223.1, and theNational Electrical Code (NEC) NFPA 70.48VGUKPerformance™ 15.2+ SEER2 Ultra Low NOx 2-StagePackaged Air Conditioner and Single Stage GasFurnace System with Puron® (R-410A) RefrigerantSingle and Three Phase2-5 Nominal Tons (Sizes 24-60)