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From inside (document excerpt):
58MCB 4-Way Multipoise Fixed-Capacity Condensing Gas Furnace Visit www.carrier.com Installation, Start-Up, and Operating Instructions For Sizes 040-140, Series 100 ama ISO 9001:2000 CERTIFIED ® A93040 NOTE: Read the entire instruction manual before starting the installation. NOTE: This furnace can be installed as a (2-pipe) direct vent or (1-pipe) non-direct vent condensing gas furnace. This symbol indicates a change since the last issue.
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Index Page DIMENSIONAL DRAWING 2 SAFETY CONSIDERATIONS .3 Clearances to Combustibles 4 CODES AND STANDARDS 5 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 6 INTRODUCTION 6 APPLICATIONS 7 General 7 Upflow Applications .7 Downflow Applications 9 Horizontal Left (Supply-Air Discharge) Applications 10 Horizontal Right (Supply-Air Discharge) Applications 11 LOCATION 14 General 14 Furnace Location Relative to Cooling Equipment 15 Hazardous Locations .15 Furnace Location and Application .15 AIR FOR COMBUSTION AND VENTILATION 16 INSTALLATION .19 Leveling Legs (If Desired) .19 Installation In Upflow and Downflow Applications .19 Installation In Horizontal Applications 19 Air Ducts .21 General .21 Ductwork Acoustical Treatment .22 Supply Air Connections 22 Return Air Connections .22 Filter Arrangement 22 Bottom Closure Panel .23 Gas Piping .23 Electrical Connections 24 115-v Wiring 24 24-v Wiring 26 Accessories 26 Removal of Existing Furnaces from Common Vent Systems .26 Combustion-Air and Vent Pipe Systems .26 REGISTERED As an ENERGY STAR® Partner, Carrier Corporation has determined that this product meets the ENERGY STAR® guidelines for energy efficiency. AIRFLOW UPFLOW HORIZONTAL LEFT DOWNFLOW AIRFLOW HORIZONTAL RIGHT AIRFLOW AIRFLOW Fig. 1–Multipoise Orientations A93041 Condensate Drain .41 General 41 Application 41 Condensate Drain Protection 41 START-UP, ADJUSTMENTS AND SAFETY CHECK .42 General 42 Prime Condensate Trap With Water 42 Purge Gas Lines 42 Sequence of Operation 42 Heating Mode 43 Cooling Mode 43 Continuous Blower Mode .43 Heat Pump Mode .43 Component Test .43 Adjustments .