From inside (document excerpt):
58UXT Upflow/Horizontal, 2Speed, 2Stage Induced-Combustion Gas Furnace Visit www.carrier.com Installation, Start-Up, and Operating Instructions Size 060120, Series 130 NOTE: Read the entire instruction manual before starting the installation. This symbol indicates a change since the last issue. TABLE OF CONTENTS SAFETY CONSIDERATIONS .1 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 4 LOCATION 4 General 4 Location Relative to Cooling Equipment 4 Hazardous Locations .4 AIR FOR COMBUSTION AND VENTILATION 4 Unconfined Space .5 Confined Space .5 INSTALLATION .6 Air Ducts .6 General Requirements .6 Ductwork Acoustical Treatment .6 Supply Air Connections 6 Return Air Connections .7 Filter Arrangement 7 Leveling Legs (If Required) .8 Upflow Installation .8 Horizontal Attic Installation .8 Construct a Working Platform 8 Install Furnace .8 Horizontal Crawlspace Installation 8 Gas Piping .10 Electrical Connections 10 115-v Wiring 10 24-v Wiring 11 Accessories 11 Venting 11 START-UP, ADJUSTMENT AND SAFETY CHECK .11 General 11 Sequence of Operation 12 Start-up Procedures .17 Adjustments .17 Check Safety Controls 23 Checklist 23 SAFETY CONSIDERATIONS Installation and servicing of heating equipment can be hazardous due to gas and electrical components.
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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 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. Ca EFFICIENCY RATING CERTIFIED INTRODUCTION 1 rr ier Cor pora ti on CERTIFIED SO 900 E R E D F8 3 1 #A28 REGISTERED QUALITY SYSTEM Follow all safety codes. In the United States, follow all safety codes including the National Fuel Gas Code (NFGC) NFPA 54-1999/ANSI Z223.1-1999 and the Installation Standards, Warm Air Heating and Air Conditioning Systems (NFPA 90B) ANSI/NFPA 90B. In Canada, refer to the current edition of the CAN/CGA-B149.1- and .2-M00 National Standard of Canada, Natural Gas and Propane Installation Codes (NSCNGPIC). Wear safety glasses and work gloves. Have a 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 furnace and in instructions or manuals, 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.