Carrier 58MTA Installation, Start-Up, And Operating Instructions Manual

HEATING & COOLING
58MTA
Deluxe 4-Way Multipoise 2-Stage
Direct Vent Condensing Gas Furnace
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Installation, Start-up, and Operating Instructions
Sizes 060-120
NOTE: Read the entire instruction manual before starting the
installation.
This symbol + indicates a change since the last issue.
A93040
TABLE OF CONTENTS
SAFETY CONSIDERATIONS ..................................................... 2
INTRODUCTION .......................................................................... 2
CODES AND STANDARDS ........................................................ 3
Safety ......................................................................................... 3
General Installation ................................................................... 3
Combustion and Ventilation Air .............................................. 3
Duct Systems ............................................................................ 3
Acoustical Lining and Fibrous Glass Duct .............................. 3
Gas Piping and Gas Pipe Pressure Testing .............................. 3
Electrical Connections .............................................................. 5
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ........ 5
APPLICATIONS ............................................................................ 6
General ...................................................................................... 6
Upflow Applications ................................................................. 6
Condensate Trap Location (Factury-Shipped
Orientation) .......................................................................... 6
Condensate Trap Tubing fEactory-Shipped
Orientation) .......................................................................... 6
Condensate Trap Location tAlternate Upflow
Orientation/ .......................................................................... 7
Condensate Trap Tubing (Alternate Upflow Orientation/.7
Condensate Trap Field Drain Attachment .......................... 8
Pressure Switch Tubing ....................................................... g
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 ................................................... 10
Condensate Trap Field Drain Attachments ...................... 10
Pressure Switch Tubing ..................................................... l0
Condensate Trap Freeze Protection .................................. I1
Constrnct a Working Platform .......................................... 11
Horizontal Right (Supply-Air Discharge) Applications ........ 1I
Condensate Trap Location ................................................ I 1
Condensate Trap Tubing ................................................... I 1
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 ..................................................... t6
Filter Arrangement .................................................................. 17
Bottom Closure Panel ............................................................. 18
Gas Piping ............................................................................... 18
Electrical Connections ............................................................ 19
115-V Wiring ..................................................................... 19
24-V Wiring ....................................................................... 2l
Accessories ........................................................................ 21
Direct Venting ......................................................................... 23
Remov,'d of Existing Furnaces from Common Vent
Systems .............................................................................. 23
Combustion-Air and Vent Piping ..................................... 24
Concentric Vent and Combustion-Air Ternlination
Kit Installation ................................................................... 28
Multiventing and Vent Terminations ................................ 32
Condensate Drain .................................................................... 32
General ............................................................................... 33
Application ......................................................................... 33
Condensation Drain Protection ......................................... 34
START-UP ADJUSTMENT AND SAFETY CHECK .............. 34
General .................................................................................... 34
Sequence of Operation ............................................................ 35
Two-Stage Heating With Single-Stage Thermostat
(Adaptive Model ................................................................ 35
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 101 Catalog No. 535-80042 Printed in U.S.A.
Form 58MTA-3SI
Pg 1 7-02
Replaces:
58MTA-1SI