58MVP4-Way Multipoise Direct-VentVariable-Capacity Condensing Gas FurnaceInstallation, Start-Up, and Operating InstructionsFor Sizes 040—120, Series 130This symbol → indicates a change since the last issue.Index PageDIMENSIONAL DRAWING........................................................2SAFETY CONSIDERATIONS .....................................................3Clearances to Combustibles......................................................3ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ....3-4INTRODUCTION ..........................................................................4APPLICATIONS ......................................................................4-11General ......................................................................................4Upflow Applications..............................................................4-7Downflow Applications.........................................................7-8Horizontal Left (Supply-Air Discharge) Applications .........8-9Horizontal Right (Supply-Air Discharge) Applications.....9-11LOCATION ............................................................................11-13General...............................................................................11-12Low-Fire Only Installation................................................12-13Furnace Location Relative to Cooling Equipment ................13Hazardous Locations...............................................................13INSTALLATION....................................................................13-17Leveling Legs (If Desired) .....................................................13Installation In Upflow or Downflow Applications ..........13-15Installation In Horizontal Applications ..................................15Filter Arrangement..................................................................16Bottom Closure Panel.............................................................16Gas Piping...............................................................................17ELECTRICAL CONNECTIONS...........................................17-21115-v Wiring......................................................................17-1824-v Wiring........................................................................18-20Accessories ........................................................................20-21DIRECT VENTING ...............................................................21-29Removal of Existing Furnaces fromCommon Vent Systems.....................................................21Combustion-Air and Vent Piping .....................................21-26Concentric Vent and Combustion-Air TerminationKit Installation..............................................................26-29Multiventing and Vent Terminations .....................................29CONDENSATE DRAIN ........................................................29-31General ....................................................................................29Application ..............................................................................29Condensate Drain Protection ..................................................31SEQUENCE OF OPERATION..............................................31-34Self-Test Mode........................................................................31Heating Mode ....................................................................31-32Heating Mode—Two Stage ....................................................32Emergency Heat Mode ...........................................................32Cooling Mode ....................................................................32-33Heat Pump Mode ....................................................................33Continuous Fan Mode .......................................................33-34Component Test ......................................................................34Bypass Humidifier Mode........................................................34Dehumidification Mode ..........................................................34Zone Mode ..............................................................................34START-UP PROCEDURES ..................................................34-43General ....................................................................................34Select Setup Switch Positions...........................................34-36Prime Condensate Trap With Water ......................................36Purge Gas Lines......................................................................36Adjustments .......................................................................37-43Set Gas Input Rate ............................................................37-42Set Temperature Rise..............................................................42Set Thermostat Heat Anticipator ......................................42-43CHECK SAFETY CONTROLS..................................................43Check Primary Limit Control.................................................43Check Pressure Switch ...........................................................43CHECKLIST...........................................................................43-44A93040NOTE: Read the entire instructionmanual before starting the installation.® ama CANADIAN GAS ASSOCIATIONA P P R O V E DRAs an ENERGY STARSMPartner, 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. 565-802 Printed in U.S.A. Form 58MVP-8SI Pg 1 6-98 Replaces: 58MVP-7SI