Carrier 58MSA 6SI 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 140 NOTE: Read the entire instruction manual before starting the installation. This symbol indicates a change since last issue. ama CERTIFIED A93040 Index Page DIMENSIONAL DRAWING 2 SAFETY CONSIDERATIONS .3 Clearances to Combustibles 3 CODES AND STANDARDS 4 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 5 INTRODUCTION 5 APPLICATIONS 6-12 General 6 Upflow Applications .6 Downflow Applications .7-9 Horizontal Left (Supply-Air Discharge) Applications .9-10 Horizontal Right (Supply-Air Discharge) Applications .10-12 LOCATION 12-14 General 12 Furnace Location Relative to Cooling Equipment 13 Hazardous Locations .14 AIR FOR COMBUSTION AND VENTILATION .14-15 General 14 Unconfined Space .14 Confined Space 14-15 INSTALLATION 15-16 Leveling Legs (If Desired) 15-16 Installation in Upflow and Downflow Applications 15 Installation In Horizontal Applications 16 AIR DUCTS 16-21 General 16 Ductwork Acoustical Treatment .16-18 Supply Air Connections 18 Return Air Connections 18 Filter Arrangement 18 Bottom Closure Panel 18-19 Gas Piping 19-21 ELECTRICAL CONNECTIONS .21-22 115-v Wiring .21 24-v Wiring .22 Accessories 22 VENTING .26-30 Removal of Existing Furnaces from Common Vent Systems .26 Combustion-Air and Vent Piping .26-29 Vent Termination .29-30 Multiventing 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 CONDENSATE DRAIN 30-33 General .30-32 Application 32 Condensate Drain Protection 32 SEQUENCE OF OPERATION 33-36 Heating Mode 33-34 Cooling Mode .34 Continuous Blower Mode .35 Heat Pump Mode 35 Component Test .35-36 START-UP PROCEDURES 36-42 General 36 Prime Condensate Trap With Water 36 Purge Gas Lines 36-37 Adjustments .37-42 Set Gas Input Rate 37-42 Set Temperature Rise 42 Blower Off Delay (Heat Mode) .42 Set Thermostat Heat Anticipator 42 CHECK SAFETY CONTROLS 42-43 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. 535-80092 Printed in U.S.A. Form 58MSA-6SI Pg 1 12-02 Replaces: 58MSA-5SI Tab 6a 8a Check Primary Limit Control .42 Check Pressure Switch .43 CHECKLIST 43 SAFETY CONSIDERATIONS Application of this furnace should be indoors with special attention given to vent sizing and material, gas input rate, air temperature rise, unit leveling, and unit sizing. Improper installation or misapplication of furnace can require excessive servicing or cause premature component failure. Improper installation, adjustment, alteration, service, maintenance, or use can cause carbon monoxide poisoning, explosion, fire, electrical shock, or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, local gas supplier, or your distributor or branch for information or assistance. The qualified installer or agency must use only factory-authorized and listed kits or accessories when modifying this product. Failure to follow this warning could result in electrical shock, fire, personal injury, or death. 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.