Carrier 58MSA 2SI Gas Furnace Owners Manual

58MSA 4-Way Multipoise Fixed-Capacity Condensing Gas Furnace Visit www.carrier.com Installation, Start-Up, and Operating Instructions For Sizes 040–120 Series 110 NOTE: Read the entire instruction manual before starting the installation. This symbol indicates a change since last issue. ® ama CANADIAN GAS ASSOCIATION A PP R O VED R A93040 Index Page DIMENSIONAL DRAWING 2 SAFETY CONSIDERATIONS .3 Clearances to Combustibles 3 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 3-4 INTRODUCTION 4 APPLICATIONS 4-11 General 4 Upflow Applications 4-7 Downflow Applications .7-8 Horizontal Left (Supply-Air Discharge) Applications .8-9 Horizontal Right (Supply-Air Discharge) Applications .9-11 LOCATION 11-13 General .11-12 Furnace Location Relative to Cooling Equipment 12 Hazardous Locations .13 AIR FOR COMBUSTION AND VENTILATION .13-14 General 13 Unconfined Space .13 Confined Space 13-14 INSTALLATION 14-18 Leveling Legs (If Desired) 14-15 Installation On a Concrete Slab .15 Installation On a Combustible Floor (Downflow Applications) 15-16 Installation In Horizontal Applications 16 Filter Arrangement 16-17 Bottom Closure Panel .17 Gas Piping .18 ELECTRICAL CONNECTIONS .18-21 115-v Wiring 18-19 24-v Wiring 19-21 Accessories 21 VENTING .21-29 Removal of Existing Furnaces from Common Vent Systems .22 Combustion-Air and Vent Piping .22-28 Vent Termination .28-29 Multiventing 29 CONDENSATE DRAIN 29-30 General 29 Application 29 Condensate Drain Protection 30 As an ENERGY STAR Partner, Carrier Corporation has determined that this product meets the ENERGY STAR guidelines for energy efficiency.

REGISTERED QUALITY SYSTEM AIRFLOW UPFLOW HORIZONTAL LEFT DOWNFLOW AIRFLOW HORIZONTAL RIGHT AIRFLOW AIRFLOW Fig. 1–Multipoise Orientations A93041 SEQUENCE OF OPERATION 30-31 Heating Mode 30 Cooling Mode .30 Continuous Blower Mode .30 Heat Pump Mode .30-31 Component Test 31 START-UP PROCEDURES 31-37 General 31 Prime Condensate Trap With Water .31-32 Purge Gas Lines 32 Adjustments .32-37 Set Gas Input Rate 32-36 Set Temperature Rise 36-37 Blower Off Delay (Heat Mode) .37 Set Thermostat Heat Anticipator 37 CHECK SAFETY CONTROLS 37 Check Primary Limit Control .37 Check Pressure Switch .37 CHECKLIST .37-38 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. 535-867