COMFORT™ 92 MODEL 58MXB
HIGHLY-EFFICIENT 4-WAY MULTIPOISE FIXED-CAPACITY
DELUXE CONDENSING GAS FURNACE
Input Rates: 40,000 thru 138,000 Btuh
Product Data
4-Way Multipoise Design
Allows More Applications . . .
A05069
The Comfort™ 92 is a must for your
product line. This high-efficiency furnace allows more applications with its
reliable 4-way multipoise design. The
Comfort™ 92 is available in 12 heat/airflow combinations and with the 4-way
multipoise design can be installed in upflow, downflow, or horizontal positions
covering up to 48 different applications.
With the exception of the 140 size unit,
all Comfort™ 92 models can be installed in a manufactured (mobile) home
when the optional kit is used, and in installations with elevations up to 10,000 ft
(140 size unit limitation 7,000 ft). The
furnace is factory configured for upflow
application. With the exception of the
140 size, all sizes can be installed with 2pipe or 1-pipe venting. The 140 size can
be installed only as a 2-pipe system.
This versatile unit utilizes Power
Heat™ hot surface ignition (HSI)
which ignites the burners directly. HSI
eliminates gas waste that typical
continuous-pilot designs can bring. Hot
surface ignition provides reliable startup and operation.
Take a look at the control center on
the Comfort™ 92. Control of ignition,
inducer, and blower operation is all handled in 1 central printed circuit board.
The status indicator on the control signals when a fault has occurred and
identifies where the problem is. This,
along with the component test feature,
makes the Comfort™ 92 one of the easiest gas furnaces to troubleshoot.
High efficiency is achieved by maximizing heat transfer. The result is
energy-saving efficiency, up to
95.5 percent Annual Fuel Utilization
Efficiency (AFUE), and reduced operational noise. The Comfort™ 92 is one of
the quietest furnaces in the industry.
A unique feature of this unit is the
patented polypropylene-laminated
heat exchanger. This secondary heat
exchanger ensures that all available heat
is properly transferred to the airstream
58MXB
and throughout the home. Using the
exclusive flow-through design, the
secondary heat exchanger reduces the
pressure drop in the furnace which leads
to lower electrical usage, an important
part of this unit’s efficiency. Carrier heat
exchangers are backed by a Limited
Lifetime Warranty. (See Warranties
section for details.)
When we put it all together, the
Comfort™ 92 combines quality and
design to bring high efficiency and
comfort. You will enjoy the versatility
and ease of installation of this unit. The
Comfort™ 92 is equipped for either leftor right-side connections. Blower speeds
are easily adjustable with speed-taps
conveniently located on the control
center. A combustion inducer allows for
more use of 2-in. vent and combustion-air
piping, keeping installation costs low.
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.
Comfort™ 92 FEATURES/
BENEFITS
SerpentuffTM — 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 capapble of running at line voltage and
does not require complex voltage
regulators as do other brands. This unique
feature further enhances the reliability of
Comfort™ 92 gas furnace and continues
Carrier’s traditoin of tecnology
leadership and innovation in providing a
reliable and durable product.
ComfortFan™ — Improves comfort all
year long by allowing the homeowner to
select different fan speeds during continuous fan operation to achieve more or
minimizes heat loss.
less airflow. This is done right at the
thermostat.
SmartEvap™ — This feature allows
your system to reduce summertime
humidity levels by nearly 10% over
standard systems.
Media Filter Cabinet — Enhanced indoor air quality in your home is made
easier with our media filter cabinet—a
standard accessory on all Deluxe furnaces. When installed as a part of your
system, this cabinet allows for easy and
convenient addition of a Carrier highefficiency air filter.
Control Center — Microprocessor
controls sequencing and furnace
operation. Equipped with a component
test feature and status indicator light to
assist in troubleshooting. Microprocessor blower control times blower
start after main burners ignite to eliminate
cold air blowing into rooms.
Warranties — Limited Lifetime
Warranty on the heat exchangers for the
lifetime of original owner in single family
residence; 20 years in other residential
and commercial applications. Five-year
Limited Warranty on entire unit. Contact
your dealer for details.
Direct or Non-direct Venting — The
Comfort™ 92 can be installed as a 1
pipe/Non-Direct vent (except 140 size
unit and in manufactured/mobile home
installations) or 2 pipe/Direct vent furnace. This provides added flexibility to
meet diverse installation needs.
Insulated Blower Compartment —The
acoustical insulation reduces air and
motor noise to promote quiet operation.
Combustion Products Venting —
The combustion-air and vent pipes can
terminate through a side wall or through
the roof when used with a factoryauthorized vent termination kit.
Insulation — Foil-faced insulation in
heat exchanger section of the casing
Bottom Closure — Factory-installed for
side return; easily removable for bottom
return.
Filter — Cleanable filter with retainer is
standard.
Blower Access Panel Switch — Shuts
off all 115-v power through furnace
components whenever blower access
panel is opened.
Casing — One piece, seamless
wrap-around construction of heavy,
galvanized steel resists corrosion.
Adjustable Blower Speed — For
precise airflow selection of heating or
cooling operation.
Monoport Burners — The burners are
finely tuned for smooth, quiet
combustion plus economical gas usage.
Slow Opening Redundant Gas Valve
— Shuts off gas to burners if 1 of the
valves fails to close completely for any
reason. The slow opening feature reduces
start-up noise from rapid ignition.
Quality Registration — The Comfort™
92 is engineered and manufactured under
an ISO 9001 registered quality system.
Certifications — The Comfort™ 92
Model units are CSA (A.G.A. and
C.G.A.) design certified 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 required to convert
furnace for use with propane gas. The
efficiency is GAMA efficiency rating
certified. The Comfort™ 92 meets
California Air Quality Management
District emission requirements. Except
for the 140 size unit, all Comfort™ 92
models can be installed in a
manufactured (mobile) home when the
optional kit is used in direct vent (2-pipe)
application. Refer to Vent Table, for
elevation limitations.
TWINNING AND/OR
COMPONENT TEST
TERMINAL
BLOWER OFF-DELAY
BLOWER OFF-DELAY
DHUM
120 180
90 150
Y1
HUMIDIFIER TERMINAL
(24-VAC 0.5 AMP MAX.)
G
TEST/TWIN
TRANSFORMER 24-VAC
CONNECTIONS
PLT
COM W/W1 Y/Y2
24V
24-V THERMOSTAT
TERMINALS
R
HUM
0.5 AMP@24VAC
NUETRAL BLW
STATUS CODE LED
3-AMP FUSE
FUSE 3-AMP
SEC-2 SEC-1
EAC-2
GE MAIN
L2
PLT
LED OPERATION &
DIAGNOSTIC LIGHT
PL1-LOW VOLTA
HARNESS CONNECTOR
1
115-VAC(L2)NEUTRAL
CONNECTIONS
COOL
FAN
SPARE-1 SPARE-2
BLOWER SPEED
SELECTION TERMINALS
SPARE-2
1-AMP@
EAC-1 115VAC
SPARE-1
FAN
PR-1
L1
HEAT
COOL
HEAT
PL2
1
115 VAC (L1) LINE
VOLTAGE CONNECTION
PL2-HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTOR
EAC-1 TERMINAL
(115-VAC 1.0 AMP MAX.)
A92505
A02142
A02172
HEAT EXCHANGERS
2
CONTROL CENTER
INDUCER ASSEMBLY
1
2
3
13
4
14
5
6
6
7
8
9
10
15
58MXB
16
17
18
19
11
12
A02173
1
Burner sight glass for viewing burner flame.
11
2
Burner assembly (inside), operates with energysaving, inshot burners and hot surface igniter for
safe, dependable heating.
Heavy-duty blower circulates air across the heat
exchangers to transfer heat into the
home.
12
3
Combustion-air intake connection to ensure
contaminant-free air (right or left side).
Air filter and retainer may be used for side or
bottom return application.
13
4
Redundant gas valve, safe, efficient, features 1
gas control with 2 internal shutoff valves.
Rollout switch (manual reset) to prevent
overtemperature in burner area.
14
5
Junction box for 115-v electrical power supply.
(right or left side)
6
Vent outlet uses sealed PVC pipe to carry vent
gases from the furnace’s combustion system
(right or left side).
Primary serpentine heat exchanger (inside).
Stretches fuel dollars with the S-shaped heat-flow
design. Solid weld-free construction of corrosionresistant aluminized steel means reliability.
15
3-amp fuse provides electrical and component
protection.
16
Light emitting diode (LED) on control center.
Code lights are for diagnosing furnace operation
and service requirements.
7
Secondary condensing heat exchanger (inside),
wrings out more heat through condensation of
gases. Constructed with Polypropylenelaminated steel to ensure durability.
8
Pressure switch ensures adequate flow of flue
products through furnace and out vent system.
17
Control center.
18
Blower access panel safety interlock switch.
9
Inducer motor pulls hot flue gases through the
heat exchangers, maintaining negative pressure
for added safety.
19
Transformer (24v) behind control center
provides low-voltage power to furnace control
center and thermostat.
10
Condensate drain connection collects moisture
condensed during the combustion process.
3
Model number nomenclature
58MXB
040
F
100
08
Cooling Airflow
(Nominal 400 CFM per
12,000 Btuh Cooling)
08 — 800 CFM
12 — 1200 CFM
16 — 1600 CFM
20 — 2000 CFM
58MXB
Deluxe 4-Way Multipoise Fixed-Capacity
Direct-Vent (2-pipe) and Non-Direct Vent
(1-pipe) Condensing Gas Furnace
Input Rates
040 — 40,000 Btuh
060 — 60,000 Btuh
080 — 80,000 Btuh
100 — 100,000 Btuh
120 — 120,000 Btuh
140 — 138,000 Btuh
Series
Media Filter Cabinet included
ama
CERTIFIED
®
MEETS DOE RESIDENTIAL
CONSERVATION SERVICES
PROGRAM STANDARDS
Before purchasing this appliance,
read important energy cost and
efficiency information available
from your retailer.
ISO 9001:2000
REGISTERED
As an ENERGY STAR®
Partner, Carrier
Corporation has
determined that this
product meets the
ENERGY STAR®
guidelines for energy
efficiency.
4
REGISTERED QUALITY SYSTEM
These products are engineered and
manufactured under an ISO 9001 registered
quality system.
Physical data
UNIT SIZE
040-08 040-12 060-08 060-12 060-16 080-12 080-16 080-20 100-16 100-20 120-20 140-20
174
SHIPPING WEIGHT (Lb)
175
180
182
183
198
LIMIT CONTROL
205
214
229
232
261
261
5
6
6
SPST
HEATING BLOWER CONTROL (Off Delay)
Selectable 90, 120, 150, or 180 Sec.
BURNERS (Monoport)
2
2
3
3
3
4
GAS CONNECTION SIZE
4
4
5
1/2-in. NPT
GAS VALVE (Redundant) Manufacturer
White-Rodgers
Minimum Inlet Pressure (In. wc)
4.5 (Natural Gas)
Maximum Inlet Pressure (In. wc)
13.6 (Natural Gas)
IGNITION DEVICE
Hot Surface
58MXB
UNIT SIZE
040-08 040-12 060-08 060-12 060-16 080-12 080-16 080-20 100-16 100-20 120-20 140-20
DIRECT-DRIVE MOTOR
h.p. (PSC)
1/5
1/3
1/5
1/3
1/2
1/3
1/2
3/4
1/2
3/4
3/4
3/4
MOTOR FULL LOAD AMPS
4.9
5.8
4.9
5.8
7.9
5.8
7.9
11.1
7.9
11.1
11.1
11.1
10 x 7
11 x 8
10 x 7
11 x 8
RPM (Nominal) — SPEEDS
BLOWER WHEEL DIAMETER X WIDTH (In.)
FILTER SIZE (In.) — (Washable)
1075—3 1075—4 1075—3
10 x 6
10 x 7
10 x 6
1075—4
(1) 16 x 25 x 1
11 x 10
11 x 8
11 x 10 11 x 10 11 x 10
(1) 20 x 25 x 1
(1) 24 x 25 x 1
PSC—Permanent Split Capacitor
5
Carrier accessories*
040-08
040-12
UNIT SIZE
060-08
060-12
060-16
080-12
080-16
080-20
GAS CONVERSION KIT — NATURAL-TO-PROPANE
120-20
140-20
KGANP4001ALL
GAS CONVERSION KIT — PROPANE-TO-NATURAL
KGAPN3301ALL
TWINNING KIT
N/A
MANUFACTURED (Mobile) HOME KIT
KGATW0601HSI†
KGAMH0102KIT
DOWNFLOW BASE (For Combustible Floors)‡
N/A
N/A
KGASB0201ALL
VENT TERMINATION KIT (Bracket Only for 2 Pipes)
2-in. — KGAVT0101BRA
3-in. — KGAVT0201BRA
CONCENTRIC TERMINATION KIT (Single Exit)
2-in. — KGAVT0501CVT
3-in. — KGAVT0601CVT
CONDENSATE FREEZE PROTECTION KIT
KGAHT01010CFP
CONDENSATE NEUTRALIZER KIT (obtained thru RCD)
58MXB
100-16
100-20
P908-0001
ELECTRONIC AIR CLEANER (EAC)
Model EACB
MECHANICAL AIR CLEANER
Model FILCAB, EZXCAB
HUMIDIFIER
Models HUM
HEAT RECOVERY VENTILATOR
Model HRV
ENERGY RECOVERY VENTILATOR
Model ERV
UV LIGHTS
Model UVL
VENT/EXHAUST PIPE EXTERNAL TRAP KIT
KGAET0106ETK
DOOR GASKET KIT
KGBAC0110DGK
* Factory-authorized and field-installed. Gas conversion kits are CSA (A.G.A./C.G.A.) recognized.
† For 16 and 20 airflow sizes only (except 140-20 size unit). See kit Installation Instructions for details.
‡ Required for installation on combustible floors when no coil box is used, or when any coil box other than a Carrier cased coil is used.
Thermostat and zoning control options
Non-Programmable Thermostat Selection
TSTATCCNAC01-C
For use with 1-spd. Air Conditioner - deg. F/C, Auto Changeover
TSTATCCNHP01-C
For use with 1-spd. Air Conditioner - deg. F/C, Auto Changeover
TSTATCCN2S01-C
For use with 2-spd. Air Conditioner - deg. F/C, Auto Changeover
TSTATCCBAC01-B
For use with 1-spd. Air Conditioner - deg. F/C
TSTATCCPRH01-B**
For multi-use / stage configurations - deg. F/C, Auto Changeover/Temperature and Humidity Control
* Model HP and 2S thermostat must be field converted to air conditioner operation.
**Thermidistat Control is versatile and can be configured for multiple use and staging, it must be configured for each specific application.
Programmable Thermostat Selection
TSTATCCPAC01-B
For use with 1-spd. Air Conditioner - deg. F/C, Auto Changeover, 7-Day Programmable
TSTATCCPHP01-B*
For use with 1-spd. Air Conditioner - deg. F/C, Auto Changeover, 7-Day Programmable
TSTATCCP2S01-B*
For use with 2-spd. Air Conditioner - deg. F/C, Auto Changeover, 7-Day Programmable
TSTATCCSAC01
For use with 1-spd. Air Conditioner - deg. F/C, 5-2 Day Programmable
TSTATCCPDF01-B**
For use with multi-stage applications - deg. F/C, Auto Changeover, 7-Day Programmable
TSTATCCPRH01-B***
For multi-use / stage configurations - deg. F/C, Auto Changeover, 7-Day Programmable/Temperature and Humidity Control
* Model HP and 2S thermostat must be field converted to air conditioner operation.
**Dual Fuel thermostat is used with furnace and heat pump application
***Thermidistat Control can be configured for multiple use and staging, it must be configured for each specific application.
Zoning Control Selection
ZONECC3Z(AC/HP)01
6
Weather Maker Two-Zone kit
ZONECC2KIT01-B
Comfort Zone Plus 2-Zone kit/Temperature and Humidity Control
ZONECC4KIT01-B
Comfort Zone Plus 4-Zone kit/Temperature and Humidity Control
ZONECC8KIT01-B
Comfort Zone Plus 8-Zone kit/Temperature and Humidity Control
A93086
A concentric vent kit allows vent
and combustion-air pipes to
terminate through a single exit
in a roof or side wall.
One pipe runs inside the other
allowing venting through the
inner pipe and combustion air to
be drawn in through the outer
pipe.
A88202
A96214
DOWNFLOW
SUBBASE
CARRIER CASED
N-COIL
One base fits all furnace sizes.
The base is designed to be installed between the furnace and a
combustible floor when no coil
box is used or when a coil box
other than a Carrier cased coil is
used. It is CSA (A.G.A./C.G.A.)
design certified for use with Carrier 58MXB furnaces when installed in downflow
applications.
(as shown)
The Carrier Cased N-Coil or
A-Coil is an upflow/downflow
furnace coil which can also
replace the downflow subbase
when installing the 58MXB on
combustible flooring in the
downflow orientation.
58MXB
CONCENTRIC
VENT (DIRECT VENT/
2-PIPE ONLY)
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®
A97152
ELECTRONIC AIR
CLEANER
Cleans the air of smoke, dirt, and
many pollens commonly found.
Saves decorating and cleaning
expenses by keeping carpets,
furniture, and drapes cleaner.
A01484
HUMIDIFIER
By adding moisture to winterdry air, a Carrier humidifier can
often improve comfort and keeps
woodwork, wallpaper, and paint
in better condition. Moisturizing
household air also helps to retain
normal body heat and provides
comfort at lower temperatures.
A97432
A94336
CONTROLS:
THERMOSTATS
AND ZONING
ENERGY/HEAT
RECOVERY
VENTILATOR
Available in programmable and
non-programmable models,
Carrier thermostats maintain a
constant, comfortable temperature level in the home.
Carrier’s energy or heat recovery
ventilators exhaust stale indoor
air and provide fresh outdoor air
to the home while minimizing
heat loss and humidity level.
Especially useful for today’s
tighter constructed houses.
For the ultimate in home comfort, Carrier’s 2, 4, and 8-zone
systems allow temperature control of individual zones of the
home. This is accomplished
through a series of electronic
dampers and remote room
sensors. The 4-zone system is
shown.
Energy recovery ventilator is
shown.
7
8
11⁄4"
1"
14 1⁄2"
TYP
26 15⁄16"
1⁄2-IN.
26
15⁄16"
TYP
23 1⁄4" TYP
SIDE INLET
SIDE INLET
DIA THERMOSTAT
ENTRY
22 11⁄16"
2-IN. VENT CONN
1⁄2-IN. DIA
GAS CONN
2-IN. COMBUSTIONAIR CONN
22 5⁄16"
24 1⁄2"
26 1⁄4"
17 5⁄16"
E
INLET
OUTLET
D
11⁄16"
18 1⁄4"
⁄16"
TYP
9
DIMPLE LOCATORS
FOR HORIZONTAL
HANGING
CONDENSATE
DRAIN LOCATION
(UPFLOW)
30 1⁄2"
CONDENSATE DRAIN
TRAP LOCATION
(DOWNFLOW &
HORIZONTAL RIGHT)
OR ALTERNATE
1
⁄2-IN. DIA GAS CONN
⁄ "
13 16
A
17-1/2
17-1/2
17-1/2
17-1/2
17-1/2
17-1/2
17-1/2
21
21
21
24-1/2
24-1/2
UNIT SIZE
040-08
040-12
060-08
060-12
060-16
080-12
080-16
080-20
100-16
100-20
120-20
140-20
D
22-7/8
22-7/8
19-3/8
19-3/8
19-3/8
15-7/8
15-7/8
15-7/8
15-7/8
15-7/8
15-7/8
15-7/8
DIMENSIONS (In.)
NOTES: 1. Minimum return-air openings at furnace, based on metal duct. If flex duct is used,
see flex duct manufacturer’s recommendations for equivalent diameters.
2. Minimum return-air opening at furnace:
a. For 800 CFM–16-in. round or 14 1/ 2 x 12-in. rectangle.
b. For 1200 CFM–20-in. round or 14 1/ 2 x 19 1/ 2-in. rectangle.
c. For 1600 CFM–22-in. round or 14 1/ 2 x 23 1/ 4-in. rectangle.
d. For airflow requirements above 1800 CFM, see Air Delivery table in Product Data
literature for specific use of single side inlets. The use of both side inlets, a
combination of 1 side and the bottom, or the bottom only will ensure adequate
return air openings for airflow requirements above 1800 CFM at 0.5” W.C. ESP.
11⁄16"
33 1⁄4"
TYP
5⁄8"
32
TYP
30 13⁄16"
29 11⁄16"
TYP
27 5⁄8"
27 9⁄16"
TYP
24 1⁄2"
CONDENSATE
DRAIN LOCATION
(UPFLOW)
9 7⁄16"
TYP
CONDENSATE
DRAIN TRAP
LOCATION
(ALTERNATE
UPFLOW)
DIA
ACCESSORY
POWER ENTRY
7⁄8-IN.
DIA
POWER CONN
7⁄8-IN.
CONDENSATE DRAIN
TRAP LOCATION
(DOWNFLOW &
HORIZONTAL LEFT)
⁄ "
13 16
A
AIRFLOW
E
19-1/2
19-1/2
23
23
22 1⁄4" TYP
SIDE INLET
22 11⁄16"
A05053
2-IN. VENT CONN
24 3⁄16"
BOTTOM INLET
19-1/2
16
16
16
16
16
16
16
DIA
POWER CONN
DIA
THERMOSTAT ENTRY
1⁄2-IN.
7⁄8-IN.
1
⁄2-IN. DIA
GAS CONN
2-IN. COMBUSTIONAIR CONN
OUTLET
19"
22 5⁄16"
26 1⁄4"
26 15⁄16"
28 1⁄2"
58MXB
16"
11⁄16"
7⁄
1"
39 7⁄8"
5⁄16"
⁄16"
⁄8"
5
13
A05053
Dimensions
DOWNFLOW SUBBASE — DIMENSIONS (In.)
FURNACE
CASING
WIDTH
PLENUM OPENING*
FLOOR OPENING
FURNACE IN DOWNFLOW APPLICATION
A
B
C
D
HOLE NO.
FOR WIDTH
ADJUSTMENT
17-1/2
Furnace with or without Cased Coil
Assembly or Coil Box
15-1/8
19
16-3/4
20-3/8
3
21
Furnace with or without Cased Coil
Assembly or Coil Box
18-5/8
19
20-1/4
20-3/8
2
24-1/2
Furnace with or without Cased Coil
Assembly or Coil Box
22-1/8
19
23-3/4
20-3/8
1
* The plenum should be constructed 1/4 in. smaller in width and depth than the plenum dimensions shown above.
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LOCATING
TAB
58MXB
1 1/4″ TYP
PLENUM
OPENING
B
A
D
1
2
3
4
LOCATING
TAB
C
FACTORY-SUPPLIED
FIELD-INSTALLED
INSULATION
4
3
A97427
2
1
A88207
Assembled
Disassembled
COMBUSTION-AIR PIPE FOR NON-DIRECT VENT (1-PIPE) APPLICATION (SIZES 040 THROUGH 120 ONLY)
FIELD-SUPPLIED
2-IN. DIAMETER
FIELD-SUPPLIED
LENGTH OF STRAIGHT
PVC 90° ELBOW
2-IN. DIAMETER
PVC PIPE
PIPE PORTION OF COMBUSTION
AIR INLET PIPE ASSEMBLY (IN.)
CASING WIDTH
A
17-1/2
8-1/2 ± 1/2
21
10-1/2 ± 1/2
24-1/2
12 ± 1/2
A
COMBUSTION-AIR DISC
(FACTORY-SUPPLIED IN
LOOSE PARTS BAG)
A96211
CONCENTRIC VENT FOR DIRECT VENT (2-PIPE) APPLICATION (ALL MODEL SIZES)
B IN. DIA PVC
VENT/EXHAUST
F
E
C IN. DIA
13/16
11/2
NOTE: See furnace Installation
Instructions when venting multiple furnaces near each other.
D
A
B IN. DIA PVC
INTAKE/COMBUSTION AIR
A97110
DIMENSIONS (In.)
KIT PART NO.
A*
B
C
D†
E
F
KGAVT0501CVT
33-3/8
2
3-1/2
16-5/8
6-1/4
5-3/4
KGAVT0601CVT
38-7/8
3
4-1/2
21-1/8
7-3/8
6-1/2
* Dimension A will change accordingly as dimension D is lengthened or shortened.
† Dimension D may be lengthened to 60 in. maximum. Dimension D may also be
shortened by cutting the pipes provided in the kit to 12 in. minimum.
9
CONDENSATE TRAP
FURNACE
DOOR
BLOWER SHELF
CONDENSATE
TRAP
CONDENSATE
TRAP (INSIDE)
FURNACE
DOOR
FURNACE
SIDE
4 78
FURNACE
SIDE
4
534
534
58MXB
4
ALTERNATE DRAIN
TUBE LOCATION
26 1 4
26 1 4
FIELD
DRAIN
CONN
11 2
SIDE VIEW
CONDENSATE TRAP
DRAIN TUBE LOCATION
FIELD
DRAIN
CONN
FRONT VIEW
END VIEW
SLOT FOR SCREW
HORIZONTAL
APPLICATION
(OPTIONAL)
FRONT VIEW
HORIZONTAL
APPLICATIONS
DOWNFLOW AND ALTERNATE
EXTERNAL UPFLOW APPLICATIONS
UPFLOW APPLICATIONS
34
1⁄4
OD
COLLECTOR BOX TO
TRAP RELIEF PORT
11 2
1⁄2
OD
INDUCER HOUSING
DRAIN CONNECTION
34
5⁄8
OD
COLLECTOR BOX
DRAIN CONNECTION
71 8
SCREW HOLE FOR
UPFLOW OR DOWNFLOW APPLICATIONS
(OPTIONAL)
13 4
78
WIRE TIE
GUIDES
(WHEN USED)
21 4
FRONT VIEW
1⁄2-IN.
PVC OR CPVC
A93026
SIDE VIEW
MEDIA FILTER CABINET
25 5/8"
23 5/8"
24 3/8"
Opening with Flanges Bent
23 3/8"
23 1/8"
Opening
B Opening
A
Duct Side
Furnace Side
23 3/4"
Centerline Screw Slots
5 3/4"
Media
Filter Cabinet
A
B
16"
17"
16"
040-08, 040-12, 060-08, 060-12,
060-16, 080-12, 080-16
20"
21"
20"
080-20, 100-16, 100-20
24"
25"
24"
120-20, 140-20
Shipped with sizes
A05186
10
Clearance to combustibles
INSTALLATION
Pour des applications de flux ascendant et descendant, la fournaise doit être installée de
niveau ou inclinée à pas plus de 1/2" du niveau. Pour une application horizontale, la
fournaise doit être inclinée entre minimum 1/4" et maximum 1/2" du niveau pour le drainage
approprié. En cas d'installation en position horizontale, consulter les renseignements
IMPORTANTS sur le support dans le manuel d'installation.
LEVEL (0")
TO
1/2" MAX
UPFLOW OR
DOWNFLOW
MIN 1/4"
TO
1/2" MAX
FRONT
R
MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION
ALL POSITIONS:
*
††
Minimum front clearance for service 30 inches (762mm).
140 size furnaces require 1 inch back clearance to combustible materials.
FRONT
Cette fournaise est approuvée pour l´installation HORIZONTALE
et la circulation d´air VERS LE HAUT et VERS LE BAS.
DOWNFLOW POSITIONS:
†
For installation on combustible floors only when installed on special base No. KGASB0201ALL, Coil
Assembly, Part No. CD5 or CK5, or Coil Casing, Part No. KCAKC.
HORIZONTAL POSITIONS:
§
Line contact is permissible only between lines formed by intersections of top and two sides of furnace
jacket, and building joists, studs, or framing.
Clearance shown is for air inlet and air outlet ends.
120 and 140 size furnaces require 1 inch bottom clearance to combustible materials.
Ø
DÉGAGEMENT MINIMUM EN POUCES AVEC ÉLÉMENTS DE CONSTRUCTION COMBUSTIBLES
Clearance arrows
do not change with
furnace orientation.
††
0"B
A
R
A
C
RI K
ER
E
POUR TOUS LES POSITIONS :
*
HORIZONTAL
This furnace is approved for UPFLOW, DOWNFLOW and
HORIZONTAL installations.
Dégagement avant minimum de 762mm (30 po) pour l´entretien.
1"
TOP/PLENUM
DESSUS/CHAMBRE D´AI
For upflow and downflow applications, furnace must be installed level, or pitched within 1/2"
of level. For a horizontal application, the furnace must be pitched minimum 1/4" to
maximum of 1/2" forward for proper drainage. See Installation Manual for IMPORTANT unit
support details on horizontal applications.
Les fléches de dégagement
ne change pas avec
l´orientation de la
générateur d´air chaud.
E
AC SE
RN A I
F U URN
T
ON
FO
F R AN T
V
A
†† Pour les fournaises de 140 taille, 1 po (25mm) dégagement des matériaux combustibles est requis
POUR LA POSITION COURANT DESCENDANT:
† Pour l´installation sur le plancher combustible seulement quand on utilise la base spéciale, pièce
§
0"
DE
SI E S
T
O
C
POUR LA POSITION HORIZONTALE:
§
Ø
Le contact n´est permis qúentre les lignes formées par les intersections du dessus et des deuxcôtés de la
chemise de la fournaise, et des solives, des montants ou de la charpente du bátiment.
La distance indiquée concerne l´extrémité du tuyau d´arrivée d´air et l´extrémité du tuyau de sortie d´air.
Pour les fournaises de 120 et 140 taille, 1 po (25mm) dégagement des matériaux combustibles est requis
au-dessous.
324999-201 REV. D (LIT TOP)
Clearance in inches
Dégagement (po).
F
R
A V ON
T
A
NT
BOTTOM
DESSOUS
au-arriere.
n° KGASB0201ALL, l´ensemble serpentin, pièce n° CD5 ou CK5, ou le carter de serpentin, pièce
n° KCAKC.
58MXB
This forced air furnace is equipped for use with natural gas at altitudes 0 - 10,000 ft (0 - 3,050m), except 140 size Furnaces are only approved for altitudes 0 - 7,000 ft. (0 - 2,135m).
An accessory kit, supplied by the manufacturer, shall be used to convert to propane gas use or may be required for some natural gas applications.
This furnace is for indoor installation in a building constructed on site. This furnace may be installed in a manufactured (mobile) home when stated on rating plate and using factory
authorized kit.
This furnace may be installed on combustible flooring in alcove or closet at minimum clearance from combustible material.
This appliance requires a special venting system. Refer to the installation instructions for parts list and method of installation. This furnace is for use with schedule-40 PVC, PVC-DWV,
CPVC, or ABS-DWV pipe, and must not be vented in common with other gas-fired appliances. Construction through which vent/air intake pipes may be installed is maximum 24 inches
(600 mm), minimum 3/4 inches (19 mm) thickness (including roofing materials).
Cette fournaise à air pulsé est équipée pour utilisation avec gaz naturel et altitudes comprises entre 0 - 3,050m
(0-10,000 pi), excepté queles fournaises de 140 taille sont pour altitudes comprises entre 0 - 2,135m (0 - 7,000 pi).
Utiliser une trousse de conversion, fournie par le fabricant, pour passer au gaz propane ou pour certaines installations au gaz naturel.
Cette fournaise à air pulsé est pour installation à l´intérieur dans un bâtiment construit sur place. Cette fournaise à air pulsé peut être installée dans une maison préfabriquée
(maison mobile) si prescrit par la plaque signalétique et si l´on utilise une trousse specifiée par le fabricant.
Cette fournaise peut être installée sur un plancher combustible dans un enfoncement ou un placard en observant les dégagements minimums avec les matériaux combustibles.
Cet appareil nécessite un système d´évacuation spécial. La méthode d´installation et la liste des pièces nécessaires figurent dans les instructions d´installation.Cette fournaise doit
s´utiliser avec la tuyauterie des nomenclatures 40 PVC, PVC-DWV, CPVC, ou ABS-DWV et elle ne peut pas être ventilée conjointment avec d´autres appareils à gaz. Épaisseur de la
construction au travers de laquelle il est possible de faire passer les tuyaux d´aération (admission/évacuation): 24 po (600 mm) maximum, 3/4 po (19 mm) minimum (y compris la toiture).
0"
†Ø
DE
SI E S
T
CO
LÈ
3"
0" §
S
E
NT R VI
RE C
TI E
EN
*
30
MIN
Vent clearance to
combustibles 0".
0 (po) Dégagement
d´évent avec combustibles.
A02148
11
Performance data
EFFICIENCY
UNIT SIZE
CAPACITY* Direct Vent (2-Pipe)
38,000 38,000 56,000 56,000 56,000 75,000 75,000 75,000 94,000 94,000 113,000 129,000
(Shaded capacities are
Downflow
38,000 38,000 56,000 56,000 56,000 75,000 75,000 75,000 94,000 94,000 113,000 129,000
specified on rating plate)
Horizontal
38,000 38,000 56,000 56,000 56,000 74,000 75,000 75,000 93,000 93,000 112,000 128,000
Non-Direct Vent (1-Pipe)
AFUE* Direct Vent (2-Pipe)
58MXB
040-08 040-12 060-08 060-12 060-16 080-12 080-16 080-20 100-16 100-20 120-20 140-20
Upflow
Nonweatherized ICS
AFUE* Non-Direct Vent (1-Pipe)
Nonweatherized ICS
Upflow
38,000 38,000 56,000 56,000 56,000 75,000 75,000 75,000 94,000 94,000 112,000
Downflow
38,000 38,000 56,000 56,000 56,000 74,000 75,000 75,000 93,000 93,000 113,000
NA
Horizontal
38,000 38,000 56,000 56,000 56,000 74,000 75,000 75,000 93,000 93,000 112,000
NA
Upflow
94.3
NA
95.5
93.0
93.0
93.0
93.0
93.0
93.0
93.0
93.0
93.0
92.6
91.2
Downflow
92.9
94
91.5
91.5
91.5
91.5
91.5
91.5
91.5
91.5
91.5
Horizontal
93.7
94.9
92.3
92.3
92.3
92.3
92.3
92.3
92.3
92.3
92.3
Upflow
93.9
95.1
92.4
NA
Downflow
92.5
93.7
91.4
NA
Horizontal
93.3
94.5
91.4
NA
Input Btuh†
92
40,000 40,000 60,000 60,000 60,000 80,000 80,000 80,000 100,000100,000 120,00 138,000
UNIT SIZE
040-08 040-12 060-08 060-12 060-16 080-12 080-16 080-20 100-16 100-20 120-20 140-20
CERTIFIED TEMP RISE RANGE (°F)
30—60 15—45 45—75 30—60 20—50 40—70 30—60 20—50 45—75 30—60 40—70
50—80
CERTIFIED EXT STATIC PRESSURE
Heating
0.10
0.10
0.12
0.12
0.12
0.15
0.15
0.15
0.20
0.20
0.20
(In. wc)
Cooling
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0.50
0.20
0.50
AIRFLOW CFM‡
Heating
850
1125
885
1065
1320
1190
1285
1785
1315
1690
1720
1970
Cooling
895
1215
900
1200
1545
1245
1525
1925
1570
1930
2000
1990
* Capacity and AFUE in accordance with U.S. Government DOE test procedures.
† Gas input ratings are certified for elevations to 2000 ft. For elevations above 2000 ft, reduce ratings 2% for each 1000 ft above sea level. In Canada, derate the unit 5% for elevations 2000 to 4500 ft above sea level.
‡ • Airflow shown is for bottom only return-air supply with factory supplied 1-in. washable filter(s).
• For air delivery above 1800 CFM, see Air Delivery table for other options.
• An airflow reduction of up to 7% may occur when using the factory-specified 4 5/16-inch wide, high efficiency media filter.
• For best furnace efficiency when using the 4 5/16-inch wide media filter, adjust the blower speed tap to near the mid-point of the rise range.
ICS—Isolated Combustion System.
12
AIR DELIVERY—CFM (With Filter)
EXTERNAL STATIC PRESSURE (In. wc)
040-08
1 side
or
bottom
040-12
1 side
or
bottom
060-08
1 side
or
bottom
060-12
1 side
or
bottom
060-16
1 side
or
bottom
080-12
1 side
or
bottom
080-16
1 side
or
bottom
080-20
1 side
or
bottom
both sides or
1 side and
bottom
100-16
100-20
1 side
or
bottom
1 side
or
bottom
both sides or
1 side and
bottom
bottom
only
120-20
both sides or
1 side and
bottom
1 side only
bottom only
140-20
both sides or
1 side and
bottom
1 side only
‡ •
•
•
•
•
SPEED
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
High
Med-Low
Low
High
Med-High
Med-Low
Low
High
Med-Low
Low
High
Med-High
Med-Low
Low
High
Med-High
Med-Low
Low
High
Med High
Med-Low
Low
High
Med-High
Med-Low
Low
High
Med-High
Med-Low
Low
High
Med-High
1075
850
740
1470
1315
1125
930
1100
890
745
1430
1270
1070
915
1700
1500
1325
1205
1535
1395
1200
1040
1750
1495
1310
1135
2200
2100
1815
1560
2360
1965
1040
825
700
1415
1280
1110
925
1065
865
710
1375
1260
1055
895
1695
1465
1295
1170
1470
1350
1175
1020
1685
1455
1260
1105
2175
2025
1760
1555
2280
1925
995
780
650
1400
1235
1085
910
1005
810
670
1325
1215
1045
885
1640
1435
1265
1145
1405
1300
1125
990
1635
1405
1225
1075
2085
1945
1720
1515
2210
1870
945
740
620
1285
1180
1045
850
945
765
625
1275
1160
1015
865
1580
1385
1230
1110
1330
1225
1065
960
1575
1355
1170
1040
2025
1865
1670
1460
2130
1830
895
685
565
1215
1115
990
830
900
705
565
1200
1105
975
840
1545
1355
1190
1080
1245
1155
1030
910
1525
1305
1125
995
1925
1785
1620
1435
2035
1760
840
635
515
1120
1035
915
770
805
620
505
1135
1035
920
800
1450
1300
1150
1035
1160
1080
970
860
1445
1250
1095
995
1820
1700
1550
1390
1960
1710
760
560
455
995
930
830
705
730
540
425
1040
950
850
720
1380
1250
1105
990
1065
985
890
785
1380
1185
1040
910
1735
1620
1480
1340
1875
1670
670
480
385
890
825
740
635
610
475
360
935
850
750
650
1310
1185
1050
950
935
880
780
680
1310
1120
980
860
1635
1540
1405
1270
1790
1575
High
Med-High
Med-Low
Low
High
Med-High
Med-Low
Low
High
Med-High
1740
1500
1340
1195
2250
2020
1725
1490
2360
1960
1705
1470
1315
1175
2175
1950
1690
1480
2315
1940
1660
1445
1300
1165
2090
1900
1660
1460
2265
1930
1615
1410
1270
1130
2020
1840
1630
1440
2200
1900
1570
1375
1235
1100
1930
1790
1575
1380
2130
1850
1500
1330
1200
1070
1855
1710
1520
1340
2055
1800
1425
1280
1140
1030
1760
1640
1460
1295
1965
1740
1355
1210
1095
975
1670
1545
1370
1230
1890
1660
High
Med-High
Med-Low
Low
High
Med-High
2350
2100
1770
1545
2435
2040
2250
2015
1720
1520
2360
2000
2160
1955
1675
1465
2285
1950
2070
1875
1620
1415
2220
1905
2000
1810
1575
1365
2130
1835
1885
1710
1515
1325
2050
1790
1790
1650
1450
1265
1965
1725
1635
1540
1365
1185
1875
1650
High
Med-High
High
Med-High
Med-Low
Low
High
Med-High
2255
1985
2285
2020
1675
1460
2310
1975
2190
1930
2210
1970
1650
1445
2255
1945
2115
1890
2140
1920
1620
1430
2185
1900
2045
1840
2065
1870
1590
1400
2120
1860
1965
1780
1990
1805
1560
1370
2045
1835
1890
1720
1910
1730
1510
1320
1965
1775
1800
1645
1830
1660
1450
1275
1880
1720
1710
1560
1745
1590
1390
1230
1800
1640
High
Med-High
2140
1930
2080
1850
2025
1800
1945
1740
1875
1725
1795
1660
1725
1580
1625
1495
58MXB
UNIT SIZE
RETURN-AIR
SUPPLY
Airflow shown is for bottom only return-air supply with factory supplied 1-in. washable filter(s).
For air delivery above 1800 CFM, see Air Delivery table for other options.
An airflow reduction of up to 7% may occur when using the factory-specified 4 5/16-inch wide, high efficiency media filter.
For best furnace efficiency when using the 4 5/16-inch wide media filter, adjust the blower speed tap to near the mid-point of the rise range.
For horizontal and downflow applications, use 1 side or bottom or bottom only as airflow reference.
13
Combustion-air and vent piping for Direct Vent/2-Pipe (All
Sizes) and Non-Direct Vent/1-Pipe (Sizes 040 through 120
Only) Applications
Maximum Allowable Pipe Length (ft)
DIRECT VENT (2-PIPE) ONLY
58MXB
ALTITUDE (FT)
0 to 2000
UNIT SIZE
(BTUH)
TERMINATION
TYPE
40,000
2 Pipe or 2-in
Concentric
60,000
2 Pipe or 2-in
Concentric
80,000
2 Pipe or 2-in
Concentric
100,000
2 Pipe or 3-in
Concentric
120,000
2 Pipe or 3-in.
Concentric
138,000
2 Pipe or 3-in.
Concentric
PIPE DIA
(IN.)*
1
1-1/2
2
1-1/2
2
1-1/2
2
2-1/2
2
2-1/2
3
2-1/2 one disk
3†
3† no disk
2-1/2 one disk
3† one disk
3† no disk
4† no disk
DIRECT VENT (2-PIPE) ONLY
ALTITUDE (FT)
2001 to 3000
UNIT SIZE
(BTUH)
TERMINATION
TYPE
PIPE DIA
(IN.)*
40,000
2 Pipe or 2-in
Concentric
60,000
2 Pipe or 2-in
Concentric
80,000
2 Pipe or 2-in
Concentric
100,000
2 Pipe or 3-in
Concentric
120,000
2 Pipe or 3-in.
Concentric
138,000
2 Pipe or 3-in.
Concentric
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
3
NA
3† no disk
4† no disk
3† one disk
3† no disk
4† no disk
DIRECT VENT (2-PIPE) ONLY
ALTITUDE (FT)
3001 to 4000
UNIT SIZE
(BTUH)
TERMINATION
TYPE
PIPE DIA
(IN)*
40,000
2 Pipe or 2-in
Concentric
60,000
2 Pipe or 2-in
Concentric
80,000
2 Pipe or 2-in
Concentric
100,000
2 Pipe or 3-in
Concentric
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
3† no disk
NA
4† no disk
3† one disk
3† no disk
4† no disk
120,000
2 Pipe or 3-in.
Concentric
4† no disk
138,000
See notes at end of table
14
2 Pipe or 3-in.
Concentric
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1
1-1/2
2
1-1/2
2
1-1/2
2
2-1/2
2
2-1/2
3
2-1/2
NA
3†
NA
NA
NA
NA
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
NA
3†
NA
4† no disk
NA
NA
NA
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
NA
3†
4† no disk
NA
NA
NA
NUMBER OF 90° ELBOWS
1
2
3
4
5
6
5
70
70
20
70
10
55
70
5
40
70
10
45
70
5
40
60
70
NA
70
70
15
70
NA
50
70
NA
30
70
NA
40
70
NA
35
56
70
NA
65
70
10
70
NA
35
70
NA
20
70
NA
35
70
NA
30
52
70
NA
60
70
5
70
NA
30
70
NA
20
70
NA
30
70
NA
25
48
70
NA
60
70
NA
70
NA
30
70
NA
10
70
NA
25
70
NA
20
44
70
NA
55
70
NA
70
NA
20
70
NA
NA
70
NA
20
70
NA
15
40
70
NUMBER OF 90° ELBOWS
1
2
3
4
5
6
67
70
17
70
49
70
35
70
14
63
70
70
20
39
70
62
70
12
67
44
70
26
70
9
62
70
70
15
35
70
57
70
7
66
30
70
16
70
NA
62
63
70
10
31
70
52
70
NA
61
25
70
16
70
NA
61
56
70
5
27
70
52
70
NA
61
25
70
6
66
NA
61
50
70
NA
23
70
47
70
NA
61
15
70
NA
61
NA
61
43
70
NA
19
70
NUMBER OF 90° ELBOWS
1
2
3
4
5
6
64
70
16
68
46
70
33
70
65
59
70
11
30
70
59
70
11
63
41
70
24
70
58
59
70
6
26
70
54
70
6
62
28
70
15
70
51
58
70
NA
22
70
49
70
NA
57
23
70
14
66
44
57
70
NA
18
70
48
70
NA
57
22
70
5
61
38
57
70
NA
14
70
43
70
NA
56
13
70
NA
56
31
56
70
NA
10
70
Combustion-air and vent piping for Direct Vent/2-Pipe (All
Sizes) and Non-Direct Vent/1-Pipe (Sizes 040 through 120
Only) Applications (continued)
Maximum Allowable Pipe Length (ft) (Continued)
ALTITUDE (FT)
4001 to 5000‡
PIPE DIA
(IN)*
40,000
2 Pipe or 2-in
Concentric
60,000
2 Pipe or 2-in
Concentric
80,000
2 Pipe or 2-in
Concentric
100,000
2 Pipe or 3-in
Concentric
120,000
2 Pipe or 3-in.
Concentric
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
3† no disk
NA
4† no disk
138,000
2 Pipe or 3-in.
Concentric
4† no disk
NA
TERMINATION
TYPE
PIPE DIA
(IN.)*
40,000
2 Pipe or 2-in
Concentric
60,000
2 Pipe or 2-in
Concentric
80,000
2 Pipe or 2-in
Concentric
100,000
2 Pipe or 3-in
Concentric
120,000
2 Pipe or 3-in.
Concentric
138,000
2 Pipe or 3-in.
Concentric
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
3† no disk
NA
4† no disk
3† no disk
4† no disk
DIRECT VENT (2-PIPE) ONLY
ALTITUDE (FT)
5001 to 6000‡
UNIT SIZE
(BTUH)
TERMINATION
TYPE
PIPE DIA
(IN.)*
40,000
2 Pipe or 2-in
Concentric
60,000
2 Pipe or 2-in
Concentric
80,000
2 Pipe or 2-in
Concentric
100,000
2 Pipe or 3-in
Concentric
120,000
2 Pipe or 3-in.
Concentric
138,000
2 Pipe or 3-in.
Concentric
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
3† no disk
NA
4† no disk
3† no disk
4† no disk
DIRECT VENT (2-PIPE) ONLY
ALTITUDE (FT)
6001 to 7000‡
UNIT SIZE
(BTUH)
NUMBER OF 90° ELBOWS
1
2
3
4
5
6
60
70
15
64
44
70
31
70
53
56
70
21
69
55
70
10
59
39
70
22
70
46
55
70
17
64
50
70
5
58
26
70
13
67
40
54
70
13
59
45
70
NA
53
21
70
12
62
33
53
70
9
54
44
70
NA
52
20
70
NA
57
26
52
70
5
49
39
70
NA
52
11
70
NA
52
20
52
70
NA
44
58MXB
TERMINATION
TYPE
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
NA
3†
4† no disk
NA
NA
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
NA
3†
4† no disk
NA
NA
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN)*
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
NA
3†
4† no disk
DIRECT VENT (2-PIPE) ONLY
UNIT SIZE
(BTUH)
NUMBER OF 90° ELBOWS
1
2
3
4
5
6
57
70
14
60
41
70
29
70
42
53
70
12
42
52
70
9
55
36
70
21
67
35
52
70
8
37
47
70
NA
54
23
70
12
62
29
50
70
NA
32
42
70
NA
49
18
70
11
57
22
49
70
NA
27
40
70
NA
48
17
70
NA
52
15
48
70
NA
22
35
70
NA
47
8
70
NA
47
9
47
70
NA
17
NUMBER OF 90° ELBOWS
1
2
3
4
5
6
53
70
13
57
38
70
27
68
31
49
70
48
70
8
52
33
70
19
63
24
48
70
43
68
NA
50
21
68
10
58
18
47
70
38
67
NA
45
16
67
9
53
11
45
70
37
66
NA
44
15
66
NA
48
NA
44
67
32
64
NA
43
6
64
NA
43
NA
43
62
17
12
7
NA
NA
NA
See notes at end of table
15
Combustion-air and vent piping for Direct Vent/2-Pipe (All
Sizes) and Non-Direct Vent/1-Pipe (Sizes 040 through 120
Only) Applications (continued)
Maximum Allowable Pipe Length (ft) (Continued)
TERMINATION
TYPE
PIPE DIA
(IN.)*
40,000
2 Pipe or 2-in
Concentric
1-1/2
2
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
NA
3†
4† no disk
NA
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
NA
3†
4† no disk
NA
NON-DIRECT VENT
(1-PIPE) ONLY
PIPE DIA
(IN.)*
1-1/2
2
60,000
2 Pipe or 2-in
Concentric
2
80,000
2 Pipe or 2-in
Concentric
100,000
2 Pipe or 3-in
Concentric
120,000
2 Pipe or 3-in.
Concentric
2
2-1/2
2-1/2
3
NA
4† no disk
DIRECT VENT (2-PIPE) ONLY
58MXB
ALTITUDE (FT)
UNIT SIZE
(BTUH)
TERMINATION
TYPE
PIPE DIA
(IN.)*
40,000
2 Pipe or 2-in
Concentric
60,000
2 Pipe or 2-in
Concentric
80,000
2 Pipe or 2-in
Concentric
100,000
2 Pipe or 3-in
Concentric
120,000
2 Pipe or 3-in.
Concentric
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
3† no disk
NA
4† no disk
7001 to 8000‡
138,000
DIRECT VENT (2-PIPE) ONLY
ALTITUDE (FT)
UNIT SIZE
(BTUH)
TERMINATION
TYPE
PIPE DIA
(IN.)*
40,000
2 Pipe or 2-in
Concentric
60,000
2 Pipe or 2-in
Concentric
80,000
2 Pipe or 2-in
Concentric
100,000
2 Pipe or 3-in
Concentric
120,000
2 Pipe or 3-in.
Concentric
1-1/2
2
1-1/2
2
2
2-1/2
2-1/2
3
3† no disk
NA
4† no disk
8001 to 9000‡
138,000
DIRECT VENT (2-PIPE) ONLY
ALTITUDE (FT)
9001 to 10,000‡
UNIT SIZE
(BTUH)
138,000
NUMBER OF 90° ELBOWS
1
2
3
4
5
6
49
66
12
53
36
66
25
63
20
46
61
44
65
7
48
31
65
17
58
13
44
56
39
63
NA
46
19
63
8
53
7
43
51
34
62
NA
41
14
62
7
48
NA
41
46
33
60
NA
40
12
60
NA
43
NA
40
41
28
59
NA
38
NA
59
NA
38
NA
38
36
NUMBER OF 90° ELBOWS
1
2
3
4
5
6
46
62
11
49
33
62
23
59
10
43
35
41
60
6
44
28
60
15
54
NA
41
30
36
58
NA
42
17
58
7
49
NA
39
25
31
56
NA
37
12
56
5
44
NA
37
20
29
55
NA
35
10
55
NA
39
NA
35
15
24
53
NA
34
NA
53
NA
34
NA
34
10
NUMBER OF 90° ELBOWS
1
2
3
4
5
6
42
57
37
55
32
53
27
51
25
49
20
47
2
45
40
38
33
31
29
2
2-1/2
2-1/2
3
3†
4† no disk
NA
30
57
21
54
39
10
25
55
13
49
37
5
14
53
5
44
35
NA
9
51
NA
39
33
NA
7
49
NA
34
31
NA
NA
47
NA
29
29
NA
*Disk usage-Unless otherwise specified, use perforated disk assembly (factory-supplied in loose parts bag). If one disk is stated, separate 2 halves of perforated disk
assembly and use shouldered disk half. When using shouldered disk half, install screen side toward inlet box.
†Wide radius elbow.
‡Vent sizing for Canadian installations over 4500 ft (1370 m) above sea level are subject to acceptance by the local authorities having jurisdiction.
NA-Not Allowed; pressure switch will not make.
NOTES:
1. Do not use pipe size greater than those specified in table or incomplete combustion, flame disturbance, or flame sense lockout may occur.
2. Size both the combustion-air and vent pipe independently, then use the larger diameter for both pipes.
3. Assume two 45° elbows equal one 90° elbow. Wide radius elbows are desirable and may be required in some cases.
4. Elbows and pipe sections within the furnace casing and at the vent termination should not be included in vent length or elbow count.
5. The minimum pipe length is 5 ft for all applications.
6. Use 3-in. diameter vent termination kit for installations requiring 4-in diameter pipe.
16
MAXIMUM ALLOWABLE EXPOSED VENT PIPE LENGTH (FT) WITH AND WITHOUT INSULATION
IN WINTER DESIGN TEMPERATURE AMBIENT*
UNIT
SIZE
040-08
040-12
060-08
060-12
060-16
100-16
100-20
120-20
140-20
MAX PIPE
DIAMETER
(IN.)
WITHOUT
INSULATION
WITH 3/8-IN. OR
THICKER INSULATION†
20
1-1/2
51
70
0
1-1/2
28
70
–20
1-1/2
16
70
20
2
65
70
0
2
35
70
–20
2
20
70
20
2-1/2
70
70
70
0
2-1/2
47
–20
2-1/2
28
70
20
3
70
70
0
3
50
70
–20
3
28
70
20
4
70
70
0
4
48
70
–20
4
23
70
20
4
70
70
0
4
57
70
–20
4
30
70
58MXB
080-12
080-16
080-20
WINTER DESIGN
TEMPERATURE
(°F)
* Pipe length (ft) specified for maximum vent pipe lengths located in unconditioned spaces. Vent pipes located in unconditioned space cannot
exceed the total allowable pipe length as specified in Maximum Allowable Pipe Length table.
† Insulation thickness based on R value of 3.5 per in.
17
Electrical data
UNIT SIZE
040-08 040-12 060-08 060-12 060-16 080-12 080-16 080-20 100-16 100-20 120-20 140-20
UNIT VOLTS — HERTZ — PHASE
115—60—1
OPERATING VOLTAGE RANGE (Min — Max)*
104—127
MAXIMUM UNIT AMPS
6.1
7.3
6.1
7.1
9.5
7.6
10.0
14.1
10.2
14.8
14.6
14.3
UNIT AMPACITY†
8.4
10.0
8.4
9.8
12.8
10.4
13.4
18.4
13.5
19.3
19.1
18.8
MINIMUM WIRE SIZE
14
14
14
14
14
14
14
12
14
12
12
12
MAXIMUM WIRE LENGTH (Ft)‡
44
37
44
38
29
36
28
31
27
30
30
30
MAXIMUM FUSE OR CKT BKR (Amps)**
15
15
15
15
15
15
15
20
15
20
20
20
TRANSFORMER (24v)
40va
58MXB
EXTERNAL CONTROL POWER AVAILABLE
Heating
12va
Cooling
21va
AIR CONDITIONING BLOWER RELAY
Standard
* Permissible limits of the voltage range at which unit will operate satisfactorily.
† Unit ampacity =125% of largest operating component’s full load amps plus 100% of all other potential operating components’ (EAC, humidifier,
etc.) full load amps.
‡ Length is as measured 1 way along wire path between unit and service panel for maximum 2% voltage drop.
** Time-delay type is recommended.
Typical wiring schematic
FIELD 24-V WIRING
FIELD 115-, 208/230-, 460-V WIRING
FACTORY 24-V WIRING
FACTORY 115-V WIRING
NOTE 2
W
FIVE WIRE
THREE-WIRE
HEATING-ONLY
C
R
G
Y
THERMOSTAT
TERMINALS
FIELD-SUPPLIED
DISCONNECT
208/230- OR
460-V
THREE
PHASE
BLOWER DOOR SWITCH
BLK
BLK
WHT
WHT
GND
115-V FIELDSUPPLIED
DISCONNECT
W
GND
AUXILIARY
J-BOX
C
O
N
T
R
O
L
R
208/230-V
SINGLE
PHASE
G
COM
NOTE 1
Y/Y2
24-V
TERMINAL
BLOCK
FURNACE
GND
CONDENSING
UNIT
TWO
WIRE
NOTES: 1. Connect Y-terminal in furnace as shown for proper blower operation.
2. Some thermostats require a "C" terminal connection as shown.
3. If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
A99440
18
Typical installations
COMBUSTION AIR PIPE
(DIRECT VENT/2-PIPE APPLICATION)
OUTDOOR UNIT
VENT PIPE
A/C COIL
HUMIDIFIER
58MXB
COMBUSTION
AIR INLET
(NON-DIRECT
1-PIPE APPLICATION)
GAS-FIRED
WATER HEATER
ELECTRONIC
AIR CLEANER
FRONT OF
FURNACE
AIRFLOW
A05064
Basement — Upflow Application
ELECTRONIC
AIR CLEANER
VENT
COMBUSTION AIR
INLET (NON-DIRECT
VENT/ 1-PIPE APPLICATION
COMBUSTION
AIR (DIRECT VENT/
2 PIPE APPLICATION
HUMIDIFIER
OUTDOOR
UNIT
A/C COIL
AIRFLOW
FRONT OF
FURNACE
A05065
Closet — Downflow Application
19
COMBUSTION-AIR INLET
(NON-DIRECT VENT/1-PIPE APPLICATION)
COMBUSTION–AIR PIPE
DIRECT VENT/2-PIPE APPLICATION)
58MXB
VENT PIPE
ELECTRONIC
AIR CLEANER
FRONT OF FURNACE
FURNACE
CONDENSATE
DRAIN
REFRIGERATION
PIPING
AIR CONDITIONING
COIL
AIRFLOW
A05066
Attic — Horizontal Application
COMBUSTION– AIR PIPE
(DIRECT VENT/2-PIPE
APPLICATION)
COMBUSTION - AIR INLET
(NON-DIRECT VENT/
1-PIPE APPLICATION)
VENT
PIPE
REFRIGERATION
PIPING
AIR CONDITIONING
COIL
ELECTRONIC
AIR CLEANER
AIRFLOW
FURNACE CONDENSATE
DRAIN
FRONT OF
FURNACE
Crawlspace — Horizontal Application
20
A05067
58MXB
21
Guide specifications
Comfort 92
Single-Stage/Deluxe Gas Furnace
58MXB
GENERAL
System Description
Furnish a _________________ (4-way multipoise) fixed capacity gas-fired condensing furnace for use with natural gas or
propane (factory authorized conversion kit required for propane); furnish cold air return plenum; furnish external medial
cabinet for use with accessory media filter or standard filter.
Quality Assurance
Unit will be designed, tested and constructed to the current
ANSI Z 21.47/CSA 2.3 design standard for gas-fired central
furnaces.
Unit will be 3rd party certified by CSA to the current ANSI Z
21.47/CSA 2.3 design standard for gas-fired central furnaces.
Unit will carry the CSA Blue Star® and Blue Flame® labels.
Unit efficiency testing will be performed per the current DOE
test procedure as listed in the Federal Register.
Unit will be certified for capacity and efficiency and listed in the
latest GAMA Consumer's Directory of Certified Efficiency
Ratings.
Unit will carry the current Federal Trade Commission Energy
Guide efficiency label.
Delivery, Storage, and Handling
Unit will be shipped as single package only and is stored and
handled per unit manufacturer's recommendations.
Warranty (for inclusion by specifying engineer)
U.S. and Canada only. Warranty certificate available upon request.
PRODUCTS
Equipment
Components shall include: slow-opening gas valve to reduce ignition noise, regulate gas flow, with electric switch gas shut-off;
flame proving sensor, hot surface igniter, pressure switch assembly verifies inducer operation; flame rollout switch, drain
tubing and installed condensate drain trap, blower and inducer
assembly, 40va transformer; low-voltage (heating) (heating/
cooling) thermostat.
Blower Wheel and Blower Motor
Galvanized blower wheel shall be centrifugal type, statically
and dynamically balanced. Blower motor of PSC type shall be
permanently lubricated with sealed bearings, of _____ hp, and
shall be multiple-speed direct drive. Blower motor shall be soft
mounted to the blower scroll to reduce vibration transmission.
Filters
Furnace shall have reusable-type filters. Filter shall be ______
Copyright 2006 Carrier Corp. • 7310 W. Morris St. • Indianapolis, IN 46231
in (x) ______in. An accessory high efficiency Media Filter is
available as an option. ______________Media Filter.
Casing
Casing shall be of .030 in. thickness minimum, pre-painted galvanized steel.
Inducer Motor
Inducer motor shall be soft mounted to reduce vibration transmission.
Primary Heat Exchangers
Primary Heat exchangers shall be 3-Pass 20 gauge corrosion resistant aluminized steel of fold-and-crimp sectional design,
which operates under negative pressure.
Secondary Heat Exchangers
Secondary Heat exchangers shall be of a flow-through design
having a patented interior laminate coating of polypropylene for
greater corrosion resistance with fold-and-crimp design, which
operates under negative pressure.
Controls
Controls shall include a microprocessor based integrated electronic control board with at least 11 service troubleshooting
codes displayed via diagnostic flashing LED light on the control, has ability to store fault codes, when activated a self-test
feature checks all major functions of the furnace within one
minute, and a replaceable automotive-type circuit protection
fuse. Multiple operational settings available including separate
blower speeds. Cooling airflow will be selectable between 350
or 400 CFM per ton of air conditioning. Features will also include temporary reduced airflow in the cooling mode for improved dehumidification when a Thermidistat® is selected as
the thermostat.
Operating Characteristics
Heating
Capacity
shall
be_________Btuh
input;
____________Btuh output capacity.
Fuel Gas Efficiency shall be 93% AFUE.
Air delivery shall be__________ cfm minimum at 0.50 in. wg.
external static pressure.
Dimensions shall be: depth__________in.; width__________
in.; height_________in. (casing only). Height shall be
__________in. with A/C coil and____________in. overall with
plenum.
Electrical Requirements
Electrical supply shall be 115 volts, 60 Hz, single-phase (nominal). Minimum wire size shall be_________AWG; maximum
fuse size or HACR-type, designated circuit breaker shall be
_______Amps.
Special Features
Refer to section of the product data sheet identifying accessories
and descriptions for specific features and available enhancements.
Printed in U.S.A.
Manufacturer reserves the right to change, at any time, specifications or designs without notice and obligations
edition date: 01/06
Catalog No: 58MXB-1PD Rev. A
Replaces: 58MXB-1PD