Carrier 58MSA Installation, Start-up, And Operating Instructions Manual

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58MSA4-Way Multipoise Fixed-CapacityCondensing Gas FurnaceInstallation, Start-Up, and Operating InstructionsFor Sizes 040—120 Series 140Index PageDIMENSIONAL DRAWING........................................................3SAFETY CONSIDERATIONS .....................................................2Clearances to Combustibles......................................................4CODES AND STANDARDS ....................................................2-5ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS........5INTRODUCTION ..........................................................................5APPLICATIONS ......................................................................6-12General ......................................................................................6Upflow Applications..............................................................6-7Downflow Applications.........................................................7-9Horizontal Left (Supply-Air Discharge) Applications .......9-10Horizontal Right (Supply-Air Discharge) Applications...10-12LOCATION ............................................................................12-14General ....................................................................................12Furnace Location Relative to Cooling Equipment...........13-14Hazardous Locations...............................................................14AIR FOR COMBUSTION AND VENTILATION...............14-15General ....................................................................................14Unconfined Space ...................................................................14Confined Space .......................................................................15INSTALLATION....................................................................15-17Leveling Legs (If Desired) .....................................................15Installation in Upflow and Downflow Applications ........15-16Installation In Horizontal Applications.............................15-17AIR DUCTS............................................................................17-21General ....................................................................................17Ductwork Acoustical Treatment.............................................17Supply Air Connections..........................................................17Return Air Connections ..........................................................17Filter Arrangement..................................................................19Bottom Closure Panel.............................................................19Gas Piping..........................................................................19-21ELECTRICAL CONNECTIONS...........................................21-25115-v Wiring......................................................................21-2224-v Wiring.............................................................................24Accessories ........................................................................24-25VENTING ...............................................................................25-30Removal of Existing Furnaces fromCommon Vent Systems.....................................................25Combustion-Air and Vent Piping .....................................25-29Vent Termination...............................................................29-30Multiventing ............................................................................30CONDENSATE DRAIN ........................................................30-32General ....................................................................................30Application ..............................................................................32Condensate Drain Protection ..................................................32SEQUENCE OF OPERATION..............................................33-36Heating Mode ....................................................................33-34Cooling Mode .........................................................................34Continuous Blower Mode.......................................................35Heat Pump Mode ....................................................................35Component Test.................................................................35-36START-UP PROCEDURES ..................................................36-42General ....................................................................................36Prime Condensate Trap With Water ......................................36Purge Gas Lines......................................................................36Adjustments .......................................................................36-42Set Gas Input Rate ............................................................36-41Set Temperature Rise..............................................................42Blower Off Delay (Heat Mode) .............................................42Set Thermostat Heat Anticipator............................................42CHECK SAFETY CONTROLS ............................................42-43A93040NOTE: Read the entire instruction manualbefore starting the installation.This symbol → indicates a change since lastissue. ama CERTIFIEDAs an ENERGY STAR®Partner, Carrier Corpora-tion has determined thatthis product meets the EN-ERGY STAR® guidelinesfor energy efficiency.REGISTERED QUALITY SYSTEMFig. 1—Multipoise Orientations A93041UPFLOWDOWNFLOWHORIZONTALLEFTAIRFLOW AIRFLOWAIRFLOWAIRFLOWHORIZONTALRIGHTVisit www.carrier.comManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 1 4Tab 6a 8a PC 101 Catalog No. 535-80113 Printed in U.S.A. Form 58MSA-7SI Pg 1 10-03 Replaces: 58MSA-6SI