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 160 Condensate Trap Freeze Protection 10 Construct a Working Platform 10 Horizontal Right (Supply-Air Discharge) Applications 11 Condensate Trap Location 11 Condensate Trap Tubing .11 Condensate Trap Field Drain Attachment 12 Pressure Switch Tubing .12 Condensate Trap Freeze Protection 12 Construct a Working Platform 12 LOCATION 13 General 13 Furnace Location Relative to Cooling Equipment .13 Hazardous Locations .14 INSTALLATION .14 Leveling Legs (If Desired) .14 Installation in Upflow and Downflow Applications 14 Installation in Horizontal Applications 16 Air Ducts .16 General Requirements .16 Ductwork Acoustical Treatment .16 Supply Air Connections 16 Return Air Connections .17 Filter Arrangement 17 Bottom Closure Panel .18 Gas Piping .18 Electrical Connections 19 115v Wiring .20 24v Wiring .20 Accessories 21 Direct Venting .21 Removal of Existing Furnaces from Common Vent Systems .23 Combustion-Air and Vent Piping .27 Vent Extension Pipe 27 Concentric Vent and Combustion-Air Termination Kit Installation 27 Multiventing and Vent Terminations 32 Condensate Drain 32 General .32 Application .32 Condensation Drain Protection .32 Sequence of Operation 32 Heating Mode 33 Cooling Mode 35 Thermidistat Mode 35 Continuous Blower Mode .35 Heat Pump Mode .38 Component Test .38 START-UP PROCEDURES 39 General 39 Prime Condensate Trap With Water 39 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 3 APPLICATIONS 5 General 5 Upflow Applications .5 Condensate Trap Location (Factory-Shipped Orientation) 5 Condensate Trap Tubing (Factory-Shipped Orientation) 6 Condensate Trap Location (Alternate Upflow Orientation) 6 Condensate Trap Tubing (Alternate Upflow Orientation) 7 Condensate Trap Field Drain Attachment 7 Pressure Switch Tubing .8 Upper Collector Box and Inducer Housing (Unused) Drain Connections .8 Condensate Trap Freeze Protection 8 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 9 Horizontal Left (Supply-Air Discharge) Applications 9 Condensate Trap Location 9 Condensate Trap Tubing .9 Condensate Trap Field Drain Attachments 10 Pressure Switch Tubing .10 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. 53580090 Printed in U.S.A. Form 58MXA-14SI Pg 1 3-03 Replaces: 58MXA-13SI Tab 6a 8a Purge Gas Lines 40 Adjustments .40 Set Gas Input Rate 40 Set Temperature Rise 47 Adjust Blower Off Delay (Heat Mode) 47 Set Thermostat Heat Anticipator 47 Check Safety Controls 48 Check Primary Limit Control .