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
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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
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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