Carrier 58MXA 7SI Gas Furnace Owners Manual

58MXA Deluxe 4-Way Multipoise Fixed-Capacity Direct-Vent Condensing Gas Furnace Visit www.carrier.com Installation, Start-Up, and Operating Instructions For Sizes 040–140, Series 131 ® ama CANADIAN GAS ASSOCIATION A PP R O VED R A93040 NOTE: Read the entire instruction manual before starting the installation. This symbol indicates a change since the last issue. 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 INSTALLATION 13-17 Leveling Legs (If Desired) .13 Installation In Upflow and Downflow Applications 13-15 Installation In Horizontal Applications 15 Filter Arrangement 16 Bottom Closure Panel .16 Gas Piping .17 ELECTRICAL CONNECTIONS .17-21 115-v Wiring 17-18 Wiring Diagram 19 24-v Wiring .20 Accessories 21 DIRECT VENTING .21-30 Removal of Existing Furnaces from Common Vent Systems .21 Combustion-Air and Vent Piping .21-27 Concentric Vent and Combustion-Air Termination Kit Installation 27-29 Multiventing and Vent Termination .29-30 CONDENSATE DRAIN 31-32 General 31 Application 31 Condensate Drain Protection .31-32 As an ENERGY STARSM Partner, Carrier Corporation has determined that this product meets the ENERGY STAR guidelines for energy efficiency.

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CERTIFICATION OF MANUFACTURING SITE AIRFLOW UPFLOW HORIZONTAL LEFT DOWNFLOW AIRFLOW HORIZONTAL RIGHT AIRFLOW AIRFLOW Fig. 1–Multipoise Orientations A93041 SEQUENCE OF OPERATION 32-33 Heating Mode 32 Cooling Mode .32 Continuous Blower Mode .32 Heat Pump Mode .32-33 Component Test 33 START-UP PROCEDURES 33-42 General 33 Prime Condensate Trap With Water .33-34 Purge Gas Lines 34 Adjustments .34-42 Set Gas Input Rate 34-41 Set Temperature Rise 41-42 Adjust Blower Off Delay (Heat Mode) .42 Set Thermostat Heat Anticipator 42 CHECK SAFETY CONTROLS 42 Check Primary Limit Control .42 Check Pressure Switch .42 CHECKLIST .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. 565-876.

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Carrier Company Web Site: www.corp.carrier.com