Carrier 58DXT Service And Maintenance Instructions

Also see for 58DXT: Operating instructions User's information manual

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Carrier 58DXT Service And Maintenance Instructions Manual pdf 1 page image

58DXT, 58UXTWeatherMaker® 8000 Two-StageInduced-Combustion Gas FurnacesService and Maintenance InstructionsFor Sizes 060-120, Series 110 or 120NOTE: Read the entire instruction manual before performing anyservice or maintenance.This symbol → indicates a change since the last issue.These procedures are for size 60,000 through 120,000 Btuh units.Index PageSAFETY CONSIDERATIONS..................................................1-2ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONSPROCEDURE ...........................................................................2CARE AND MAINTENANCE..................................................2-6Air Filter Arrangement..........................................................2-3Blower Motor and Wheel......................................................3-4Cleaning Heat Exchanger......................................................4-6Electrical Controls and Wiring.................................................6Troubleshooting ...................................................................6-10Unit Wiring Diagram................................................................8Service Label ............................................................................9Troubleshooting Guide ...........................................................10SAFETY CONSIDERATIONSInstalling and servicing heating equipment can be hazardous due togas and electrical components. Only trained and qualified person-nel should install, repair, or service heating equipment.Untrained personnel can perform basic maintenance functionssuch as cleaning and replacing air filters. All other operations mustbe performed by trained service personnel. When working onheating equipment, observe precautions in the literature, tags, andlabels attached to or shipped with the unit and other safetyprecautions that may apply.Follow all safety codes. In the United States, follow all safetycodes including the National Fuel Gas Code NFPA No. 54-1996/ANSI Z223.1-1996. In Canada, refer to the current edition ofthe National Standard of Canada CAN/CGA-B149.1- and .2-M95Natural Gas and Propane Gas Installation Codes and AmendmentNo. 1. Wear safety glasses and work gloves. Have fire extinguisheravailable during start-up and adjustment procedures and servicecalls.Recognize safety information. This is the safety-alert symbol .When you see this symbol on the furnace and in instructions ormanuals, be alert to the potential for personal injury.Understand the signal words DANGER, WARNING, CAUTIONand NOTE. These words are used with the safety-alert symbol.DANGER identifies the most serious hazards which will result insevere personal injury or death. WARNING signifies a hazardwhich could result in personal injury or death. CAUTION is usedto identify unsafe practices which would result in minor personalinjury or product and property damage. NOTE is used to highlightsuggestions which will result in enhanced installation, reliability,or operation.Fig. 3—Model 58UXT UpflowA94085Fig. 2—Model 58DXTDownflow A94086Fig. 1—Model 58UXT Horizontal A95137®amaCANADIAN GAS ASSOCIATIONA P P R O V E DRREGISTEREDQUALITY SYSTEMVisit 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. 535-740 Printed in U.S.A. Form 58D,U-7SM Pg 1 7-99 Replaces: 58D,U-4SM→