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From inside (document excerpt):
58MXA Deluxe 4Way Multipoise Fixed-Capacity Direct Vent Condensing Gas Furnace Visit www.carrier.com Installation, Start-Up, and Operating Instructions Sizes 040-140, Series 170 Condensate Trap Freeze Protection 11 Construct a Working Platform 11 Horizontal Right (Supply-Air Discharge) Applications 11 Condensate Trap Location 11 Condensate Trap Tubing .11 Condensate Trap Field Drain Attachment 13 Pressure Switch Tubing .13 Condensate Trap Freeze Protection 13 Construct a Working Platform 13 LOCATION 13 General 13 Furnace Location Relative to Cooling Equipment .14 Hazardous Locations .14 INSTALLATION .15 Leveling Legs (If Desired) .15 Installation in Upflow and Downflow Applications 15 Installation in Horizontal Applications 16 Air Ducts .17 General Requirements .17 Ductwork Acoustical Treatment .17 Supply Air Connections 17 Return Air Connections .17 Filter Arrangement 18 Bottom Closure Panel .19 Gas Piping .19 Electrical Connections 20 115v Wiring .20 24v Wiring .22 Accessories 22 Direct Venting .22 Removal of Existing Furnaces from Common Vent Systems .22 Combustion-Air and Vent Piping .22 Vent Extension Pipe 27 Concentric Vent and Combustion-Air Termination Kit Installation 29 Multiventing and Vent Terminations 33 Condensate Drain 34 General .34 Application .34 Condensation Drain Protection .35 START-UP, ADJUSTMENTS AND SAFETY CHECK .35 General 35 Prime Condensate Trap With Water 36 Purge Gas Lines 37 Sequence of Operation 37 Heating Mode 37 Cooling Mode 40 Thermidistat Mode 40 Continuous Blower Mode .41 A93040 NOTE: Read the entire instruction manual before starting the installation.
This symbol indicates a change since the last issue. TABLE OF CONTENTS SAFETY CONSIDERATIONS .2 INTRODUCTION 3 CODES AND STANDARDS 3 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 5 APPLICATIONS 6 General 6 Upflow Applications .6 Condensate Trap Location (Factory-Shipped Orientation) 6 Condensate Trap Tubing (Factory-Shipped Orientation) 6 Condensate Trap Location (Alternate Upflow Orientation) 6 Condensate Trap Tubing (Alternate Upflow Orientation) 6 Condensate Trap Field Drain Attachment 7 Pressure Switch Tubing .7 Upper Collector Box and Inducer Housing (Unused) Drain Connections .7 Condensate Trap Freeze Protection 7 Downflow Applications 8 Condensate Trap Location 8 Condensate Trap Tubing .8 Condensate Trap Field Drain Attachment 9 Pressure Switch Tubing .9 Condensate Trap Freeze Protection 10 Horizontal Left (Supply-Air Discharge) Applications 10 Condensate Trap Location 10 Condensate Trap Tubing .10 Condensate Trap Field Drain Attachments 11 Pressure Switch Tubing .11 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. 53580136 Printed in U.S.A. Form 58MXA-17SI Pg 1 9-04 Replaces: 58MXA-16SI Tab 6a 8a Heat Pump Mode .41 Component Test .41 Adjustments .42 Set Gas Input Rate 42 Set Temperature Rise 48 Adjust Blower Off Delay (Heat Mode) 49 Set Thermostat Heat Anticipator 49 Check Safety Controls 49 Check Primary Limit Control .49 Check Pressure Switch 49 Checklist 50 FIRE, EXPLOSION, ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in electrical shock, fire, personal injury, or death. 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. 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. All other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in literature, on tags, and on labels attached to or shipped with unit and other safety precautions that may apply.