Carrier Comfort 48VL-C Installation Instructions Manual

Also see for Comfort 48VL-C: Owner's information manual Installation instructions Installation instructions

cInstallation 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 ContentsSafety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Receiving and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Pre-Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Start-up Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47A170030Fig. 1 – Unit 48VL(Low NOx Model Available)Safety 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.In Canada refer to the current editions of the National Standards ofCanada CAN/CSA-B149.1 and 2 Natural Gas and Propane Installationcodes, and Canadian Electrical Code CSA C22.1Recognize 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: DAN-GER, WARNING, and CAUTION. These words are used with the safe-ty-alert symbol. DANGER identifies the most serious hazards which willresult in severe personal injury or death. WARNING signifies hazardswhich could result in personal injury or death. CAUTION is used to iden-tify unsafe practices which may result in minor personal injury or productand property damage. NOTE is used to highlight suggestions which willresult in enhanced installation, reliability, or operation.IntroductionThis unit (see Fig. 1) is a fully self-contained, combination Category Igas heating/electric cooling unit designed for outdoor installation (SeeFig. 3and Fig. 4 for unit dimensions). All unit sizes have return anddischarge openings for both horizontal and downflow configurations,and are factory shipped with all downflow duct openings covered. Unitsmay be installed either on a rooftop or on a cement slab. (See Fig. 5 forroof curb dimensions).In gas heating mode, this unit is designed for a minimum continuousreturn-air temperature of 55°F (13°C) db and a maximum continuousreturn-air temperature of 80°F (27°C) db. Failure to follow thesereturn-air temperature limits may affect reliability of heat exchangers,motors, and other components.Models with a N in the fifth position of the model number are dedicatedthat are Low NOx units designed for California installations. These48VL-C, 48VL-EComfort™14 SEER Single-Packaged AirConditioner and Gas Furnace System with Puron®(R-410A) RefrigerantSingle Phase 2-5 Nominal Tons (Sizes 24-60)Three Phase 3-5 Nominal Tons (Sizes 36-60)WARNING!ELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personal injury or death.Before installing or servicing system, always turn off main power tosystem and install lockout tag. There may be more than one disconnectswitch. Turn off accessory heater power switch if applicable.WARNING!FIRE, EXPLOSION, ELECTRICAL SHOCK ANDCARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in personal injury or unitdamage.A qualified installer or agency must use only factory-authorized kits oraccessories when modifying this product.