58MVB
4-Way Multipoise
Variable-Capacity Condensing Gas Furnace
Installation, Start-Up, and Operating Instructions
For Sizes 040—120, Series 100
NOTE: This furnace can be installed as a direct vent (2-pipe)
or non-direct vent (1-pipe)
condensing gas furnace.
This symbol → indicates a change since the last issue.
Index Page
SAFETY CONSIDERATIONS.....................................................2
DIMENSIONAL DRAWING........................................................3
Clearances to Combustibles......................................................4
CODES AND STANDARDS........................................................5
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS........6
INTRODUCTION..........................................................................6
APPLICATIONS............................................................................6
General ......................................................................................6
Upflow Applications.................................................................6
Downflow Applications............................................................8
Horizontal Left (Supply-Air Discharge) Applications ..........10
Horizontal Right (Supply-Air Discharge) Applications ........12
LOCATION..................................................................................14
General ....................................................................................14
Low-Heat Only Installation....................................................15
Furnace Location Relative to Cooling Equipment ................16
Hazardous Locations...............................................................16
Furnace Location and Application.........................................16
AIR FOR COMBUSTION AND VENTILATION ....................17
INSTALLATION.........................................................................19
Leveling Legs (If Desired).....................................................19
Installation In Upflow or Downflow Applications................20
Installation In Horizontal Applications..................................20
Air Ducts.................................................................................20
General Requirements .......................................................20
Ductwork Acoustical Treatment .......................................20
Supply-Air Connections....................................................20
Return-Air Connections.....................................................22
Filter Arrangement..................................................................23
Bottom Closure Panel.............................................................23
Gas Piping...............................................................................24
Electrical Connections............................................................25
115-v Wiring......................................................................25
24-v Wiring........................................................................27
Accessories ........................................................................27
Removal of Existing Furnaces from
Common Vent Systems.....................................................27
Combustion-air and Vent Pipe Systems ................................27
Condensate Drain.........................................................................40
General ....................................................................................40
Application..............................................................................41
Condensate Drain Protection..................................................42
START-UP, ADJUSTMENTS AND SAFETY CHECK...........42
General ....................................................................................42
Select Setup Switch Positions................................................43
Prime Condensate Trap With Water......................................44
Purge Gas Lines......................................................................44
Sequence of Operation............................................................44
Single-Stage Thermostat and Two-Stage Heating
(Adaptive Mode)..........................................................45
Two-Stage Thermostat and Two-Stage Heating ..............46
Cooling Mode....................................................................46
Thermidistat Mode ............................................................47
Super-Dehumidify Mode...................................................47
Continuous Blower Mode .................................................47
Heat Pump .........................................................................48
Component Test.................................................................48
Adjustments .............................................................................48
Set Gas Input Rate ............................................................48
Set Temperature Rise ........................................................56
Set Thermostat Heat Anticipator ......................................56
A93040
NOTE: Read the entire instruction
manual before starting the installation.
ama
CERTIFIED
®
REGISTERED
ISO 9001:2000
As an ENERGY STAR®
Partner, Carrier Corpora-
tion has determined that
this product meets the EN-
ERGY STAR® guidelines
for energy efficiency.
Fig. 1—Multipoise Orientations
A93041
UPFLOW
DOWNFLOW
HORIZONTAL
LEFT
AIRFLOW
AIRFLOW
AIRFLOW
AIRFLOW
HORIZONTAL
RIGHT
Visit www.carrier.com
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
Tab 6a 8a
PC 101 Printed in U.S.A. Catalog No. 58MVB-1SI Pg 1 8-05 Replaces: 58MVP-16SI
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