Carrier 58DXT 3SI Gas Furnace Owners Manual

58DXT Downflow 2-Speed, 2-Stage, Induced-Combustion Gas Furnace Visit www.carrier.com Installation, Start-Up, and Operating Instructions Sizes 060-100, Series 110 NOTE: Read the entire instruction manual before starting the installation. This symbol indicates a change since the last issue. Index Page ® A PP R O VED R ama CANADIAN GAS ASSOCIATION SAFETY CONSIDERATIONS .1 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE .2 INTRODUCTION .2-3 Dimensional Drawing .2 Clearances to Combustibles 3 LOCATION 4 General 4 Location Relative to Cooling Equipment 4 Hazardous Locations .4 AIR FOR COMBUSTION AND VENTILATION .4-5 Unconfined Space .4 Confined Space 4-5 SUPPLY-AIR PLENUM INSTALLATION (DOWNFLOW) .5-6 Installation On Combustible Floor .6 FILTER ARRANGEMENT .6-7 GAS PIPING .6-8 ELECTRICAL CONNECTIONS .8-9 115-v Wiring .8 24-v Wiring .9 Accessories 9 VENTING 9 START-UP, ADJUSTMENT, AND SAFETY CHECK .9-20 General .9-10 Sequence of Operation 10-14 Adaptive Heating Mode 11 Non-Adaptive Heating Mode 11-13 Cooling Mode .13 Continuous Blower Mode .13 Heat Pump Mode .13-14 Defrost Mode 14 Start-Up Procedures 14 Adjustments .14-20 Set Gas Input Rate 14-19 Set Temperature Rise 19-20 Set Thermostat Heat Anticipator 20 Check Safety Controls .20-21 Checklist 21 CERTIFICATION OF MANUFACTURING SITE heating equipment, observe precautions in the literature, on tags, and on labels attached to or shipped with the unit and other safety precautions that may apply.

Follow all safety codes. In the United States, refer to the National Fuel Gas Code (NFGC) NFPA No. 54-1996/ANSI Z223.1-1996. In Canada, refer to the current edition of the National Standard of Canada CAN/CGA-B149.1- and .2-M95 Natural Gas and Propane Installation Codes (NSCNGPIC). Wear safety glasses and work gloves. Have fire extinguisher available during start-up and adjustment procedures and service calls. Recognize safety information. This is the safety-alert symbol. When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage. These instructions cover minimum requirements and conform to existing 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 residential construction practices. We require these instructions as a minimum for a safe installation. SAFETY CONSIDERATIONS Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified personnel should install, repair, or service heating equipment. Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 PC 101 Catalog No. 535-849