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2
BL
W
NUETRAL
ST
A
TUS CODE LED
SEC-2 SEC-1
EAC-2 L2
FUSE 3-AMP
0.5 AMP@24VAC
HUM
TEST/TWIN
G Com
W
Y R
24V
120 180
90 150
BLOWER OFF-DELAY
PL
T 1
COOL HEA
T
SPARE-1 SPARE-2
EAC-1
1-AMP@
115VAC
PR-1
L1
PL2 1
24-V THERMOSTAT
TERMINALS
3-AMP FUSE
LED OPERATION &
DIAGNOSTIC LIGHT
115-VAC(L2)NEUTRAL
CONNECTIONS
COOL
HEAT
SPARE-1
SPARE-2
BLOWER SPEED
SELECTION TERMINALS
EAC-1 TERMINAL
(115-VAC 1.0 AMP MAX.)
115 VAC (L1) LINE
VOLTAGE CONNECTION
PL2-HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTOR
PL1-LOW VOLTA
GE MAIN
HARNESS CONNECTOR
TRANSFORMER 24-VAC
CONNECTIONS
HUMIDIFIER TERMINAL
(24-VAC 0.5 AMP MAX.)
TWINNING AND/OR
COMPONENT TEST
TERMINAL
BLOWER OFF-DELAY
J2
J2 JUMPER
PL
T
achieved in any type of installation.
Standard 2-in. PVC pipe connects the
combustion-air and vent pipes to the
furnace. The primary and secondary heat
exchangers are backed by a 20-year
Limited Warranty.
The 58MCB is a standard part of a
quality-built new home. This high-
efficiency furnace will provide years of
quality service to home builders and
home owners alike.
As with other Carrier furnaces, this
model is designed to work as a part of the
total home comfort system which
includes elements for cooling, air
cleaning, humidification, ventilation,
and zoning.
58MCB FEATURES/
BENEFITS
Serpentuff
TM
—Exclusive Serpentuff
coating, a patented polypropylene
laminate is used on the secondary heat
exchanger.
Power Heat™ Igniter
—Carrier’s
unique SiN igniter is not only physically
robust but it is also electrically robust. It
is capable of running at line voltage and
does not require complex voltage
regulators as do other brands. This
unique feature further enhances the
reliability of the 58MCB gas furnace
and continues Carrier’s tradition of
technology leadership and innovation in
providing a reliable and durable product.
Control Center
—Controls sequencing
and furnace operation. Equipped with a
component test feature and status
indicator light to assist in trouble-
shooting. Control times blower start after
main burners ignite to eliminate cold air
blowing into rooms.
Warranties
—20-year
Warranty
on the heat exchangers. Five-
year Warranty on entire unit.
Contact your dealer for details.
Direct or Non-direct Venting
—The
58MCB can be installed as a 1 pipe-Non-
Direct vent or 2 pipe/Direct vent furnace
except the 140 size which can be in-
stalled as 2-pipe only. This provides
added flexibility to meet diverse installa-
tion needs.
Adjustable Blower Speed
—For precise
airflow selection of heating or cooling
operation.
Casing
—One piece, seamless wrap-
around construction of prepainted
galvanized steel resists corrosion.
Combustion Products Venting
—The
combustion-air and vent pipes can
terminate through a side wall or through
the roof when used with a factory-
authorized vent termination kit.
Insulation
—Foil-faced insulation in
heat exchanger section of the casing
minimizes heat loss.
Certifications
—The 58MCB units are
CSA (A.G.A. and C.G.A.) design certi-
fied for use with natural and propane
gases. The furnace is factory-shipped for
use with natural gas. A CSA (A.G.A./
C.G.A.) listed gas conversion kit is re-
quired to convert furnace for use with
propane gas. The efficiency is GAMA
efficiency rating certified. The 58MCB
meets California Air Quality Manage-
ment District emission requirements.
Except for the 140 size unit, all sizes
of the 58MCB can be installed in a
manufactured (mobile) home when the
optional kit is used. Refer to Vent Table
for elevation limitations.
Quality Registration
—The 58MCB is
engineered and manufactured under an
ISO 9001 registered quality system.
A92505
HEAT EXCHANGERS
CONTROL CENTER
A02172
INDUCER ASSEMBLY
A02100
Model number nomenclature
58MCB
040
4-Way Multipoise Fixed-Capacity
Direct-Vent (2-Pipe) and Non-Direct Vent
(1-Pipe) Condensing Gas Furnace
Input Rate
040 — 40,000 Btuh
060 — 60,000 Btuh
080 — 80,000 Btuh
100 — 100,000 Btuh
120 — 120,000 Btuh
140 — 138,000 Btuh
100
08
Cooling Size Airflow
(Nominal 400 CFM per
12,000 Btuh Cooling)
08 — 800 CFM
12 — 1200 CFM
16 — 1600 CFM
20 — 2000 CFM
Series
58MCB
Summary of Contents for 58MCB040
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