Carrier 58DXT Operating Instructions Manual

Also see for 58DXT: User's information manual Service and maintenance instructions

Contents

Carrier 58DXT Operating Instructions Manual Manual pdf 1 page image

58DXTDownflow 2-Speed, 2-Stage,Induced-Combustion Gas FurnaceInstallation, Start-Up, and Operating InstructionsSizes 060-100, Series 110 or 120NOTE: Read the entire instruction manual before starting theinstallation.This symbol → indicates a change since the last issue.Index PageSAFETY CONSIDERATIONS .....................................................1ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONSPROCEDURE ...........................................................................2INTRODUCTION.......................................................................2-3Dimensional Drawing ...............................................................2Clearances to Combustibles......................................................3LOCATION....................................................................................4General ......................................................................................4Location Relative to Cooling Equipment ................................4Hazardous Locations.................................................................4AIR FOR COMBUSTION AND VENTILATION...................4-5Unconfined Space .....................................................................5Confined Space .........................................................................5AIR DUCTS...................................................................................6General Requirements...............................................................6Ductwork Acoustical Treatment...............................................6Supply Air Connection .............................................................6Return Air Connections ............................................................6SUPPLY-AIR PLENUM INSTALLATION(DOWNFLOW) ........................................................................6Downflow Installation .............................................................6Installation On Combustible Floor...........................................6FILTER ARRANGEMENT...........................................................7GAS PIPING...............................................................................7-8ELECTRICAL CONNECTIONS ..................................................9115-v Wiring.............................................................................924-v Wiring...............................................................................9Accessories .............................................................................. 9VENTING ......................................................................................9START-UP, ADJUSTMENT, AND SAFETY CHECK.......10-22General ....................................................................................10Sequence of Operation ......................................................10-14Adaptive Heating Mode ....................................................11-13Non-Adaptive Heating Mode .................................................13Cooling Mode .........................................................................14Continuous Blower Mode.......................................................14Heat Pump Mode ....................................................................14Defrost Mode ..........................................................................15Start-Up Procedures ................................................................15Adjustments .......................................................................15-21Set Gas Input Rate ............................................................15-19Set Temperature Rise..............................................................20Set Thermostat Heat Anticipator............................................21Check Safety Controls ............................................................21Checklist..................................................................................22SAFETY 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, on tags,and on labels 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 (NFGC) NFPA54-1996/ANSI Z223.1-1996 and the Installation Standards, WarmAir Heating and Air Conditioning Systems (NFPA 90B)ANSI/NFPA 90B. In Canada, refer to the CAN/CGA-B149.1- and.2-M95 National Standard of Canada, Natural Gas and PropaneInstallation Codes (NSCNGPIC). Wear safety glasses and workgloves. Have fire extinguisher available during start-up andadjustment procedures and service calls.Recognize safety information. This is the safety-alert symbol .When you see this symbol on the unit and in instructions ormanuals, be alert to the potential for personal injury.Understand the signal words DANGER, WARNING, CAUTION,and 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 hazardswhich 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.These instructions cover minimum requirements and conform toexisting national standards and safety codes. In some instances,these instructions exceed certain local codes and ordinances,especially those that may not have kept up with changing residen-tial construction practices. We require these instructions as aminimum for a safe installation.®ama CANADIAN GAS ASSOCIATIONA P P R O V E DRREGISTERED QUALITY 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. 535-732 Printed in U.S.A. Form 58DXT-4SI Pg 1 7-99 Replaces: 58DXT-3SI→