Carrier Performance 50VG-K Installation Instructions Manual

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Identify Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Inspect Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Slab Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Rigging/Lifting of Unit (See Fig. 5) . . . . . . . . . . . . . . . . . . . . . . 8Configuring Units for Downflow (vertical) Discharge. . . . . . . . 9High-Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Special Procedures for 208-V Operation . . . . . . . . . . . . . . . . . 11Control Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 11Standard Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Transformer Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Pre-Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Checking and Adjusting Refrigerant Charge . . . . . . . . . . . . . . 14Indoor Airflow and Airflow Adjustments . . . . . . . . . . . . . . . . 14Cooling Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . 15Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Indoor Blower and Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Outdoor Coil, Indoor Coil, and Condensate Drain Pan . . . . . . 27Outdoor Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Electrical Controls and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 27Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Evaporator Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Puron (R-410A) Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Pressure Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Low-Pressure Switch (Air Conditioner Only) . . . . . . . . . . . . . 28High-Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Copeland Scroll Compressor (Puron [R-410A] Refrigerant) . . 28Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Compressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Servicing Systems on Roofs with Synthetic Materials . . . . . . . 29Synthetic Roof Precautionary Procedure . . . . . . . . . . . . . . . . . 29Liquid Line Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Puron (R-410A) Refrigerant Charging . . . . . . . . . . . . . . . . . . . 29Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Start-up Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29A09033Fig. 1 – Unit 50VG-KSafety 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 Referto the individual instructions packaged with the kits or accessories wheninstalling.Follow all safety codes. Wear safety glasses, protective clothing, andwork gloves. Use quenching cloth for brazing operations. Have a fireextinguisher available. Read these instructions thoroughly and follow allwarnings or cautions included in literature and attached to the unit.Consult local building codes, the current editions of the NationalElectrical Code (NEC) NFPA 70.In Canada refer to the current editions of the Canadian electrical CodeCSA C22.1.Recognize safety information. This is the safety-alert symbol . Whenyou see this symbol on the unit and in instructions or manuals, be alert tothe potential for personal injury. Understand these signal words;DANGER, WARNING, and CAUTION. These words are used with thesafety-alert symbol. DANGER identifies the most serious hazards whichwill result in severe personal injury or death. WARNING signifieshazards which could result in personal injury or death. CAUTION isused to identify unsafe practices which may result in minor personalinjury or product and property damage. NOTE is used to highlight50VG-KPerformance™ 15.2+ SEER2 2-Stage Packaged AirConditioner Systemwith Puron® (R-410A) RefrigerantSingle and Three Phase2-5 Nominal Tons (Sizes 24-60)