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From inside (document excerpt):
58MVB 4-Way Multipoise Variable-Capacity Condensing Gas Furnace Visit www.carrier.com Installation, Start-Up, and Operating Instructions For Sizes 040–120, Series 100 NOTE: Read the entire instruction manual before starting the installation. ama ISO 9001:2000 CERTIFIED ® A93040 NOTE: This furnace can be installed as a direct vent (2-pipe) or non-direct vent (1-pipe) condensing gas furnace. This symbol indicates a change since the last issue.
Index Page SAFETY CONSIDERATIONS .2 DIMENSIONAL DRAWING 3 Clearances to Combustibles 4 CODES AND STANDARDS 5 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 6 INTRODUCTION 6 APPLICATIONS 6 General 6 Upflow Applications .6 Downflow Applications 8 Horizontal Left (Supply-Air Discharge) Applications 10 Horizontal Right (Supply-Air Discharge) Applications 12 LOCATION 14 General 14 Low-Heat Only Installation 15 Furnace Location Relative to Cooling Equipment 16 Hazardous Locations .16 Furnace Location and Application .16 AIR FOR COMBUSTION AND VENTILATION 17 INSTALLATION .19 Leveling Legs (If Desired) .19 Installation In Upflow or Downflow Applications 20 Installation In Horizontal Applications 20 Air Ducts .20 General Requirements .20 Ductwork Acoustical Treatment .20 Supply-Air Connections 20 Return-Air Connections .22 Filter Arrangement 23 Bottom Closure Panel .23 Gas Piping .24 Electrical Connections 25 115-v Wiring 25 24-v Wiring 27 Accessories 27 Removal of Existing Furnaces from Common Vent Systems .27 Combustion-air and Vent Pipe Systems 27 Condensate Drain .40 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 General 40 Application 41 Condensate Drain Protection 42 START-UP, ADJUSTMENTS AND SAFETY CHECK .42 General 42 Select Setup Switch Positions 43 Prime Condensate Trap With Water 44 Purge Gas Lines 44 Sequence of Operation 44 Single-Stage Thermostat and Two-Stage Heating (Adaptive Mode) 45 Two-Stage Thermostat and Two-Stage Heating 46 Cooling Mode 46 Thermidistat Mode 47 Super-Dehumidify Mode .47 Continuous Blower Mode .47 Heat Pump .48 Component Test .48 Adjustments .48 Set Gas Input Rate 48 Set Temperature Rise 56 Set Thermostat Heat Anticipator 56 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 Printed in U.S.A. Catalog No. 58MVB-1SI Pg 1 8-05 Replaces: 58MVP-16SI Tab 6a 8a Check Safety Controls 56 Check Primary Limit Control .56 Check Pressure Switch 56 CHECKLIST .57 SAFETY CONSIDERATIONS CUT HAZARD Failure to follow this caution may result in personal injury. Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing and gloves when handling parts. FURNACE RELIABILITY HAZARD Improper installation or misapplication of furnace may require excessive servicing or cause premature component failure.