Carrier Comfort 59SC5A Series Operation manual

1
59SC5A
Comfort™ Series Single---Stage
4 --- W a y M u l t i p o i s e
Condensing Gas Furnace
Series 100
Product Data
A11263
The 59SC5 Multipoise Comfort Series Condensing Gas Furnace
features energy efficiency of 95.5% AFUE gas efficiency and
workhorse PSC blower motor. This gas furnace also features
4-way multipoise installation flexibility, and is available in nine
model sizes. The 59SC5 can be vented for direct vent/two-pipe,
ventilated combustion air, or single-pipe applications. All units
meet California Air Quality Management District emission
requirements, are design certified in Canada, and are certified for
mobile/manufactured home use.
STANDARD FEATURES
S4-way multipoise design for upflow, downflow or horizontal
installation.
SInstallation flexibility with a 360-degree rotating elbow.
SMore than twelve different venting options, including optional
through-the-cabinet downflow and horizontal venting.
SIdeal condensing furnace height 35” (889 mm) cabinet: short
enough for taller coils, but still allows enough room for service.
SSilicon Nitride Power HeattHot Surface Igniter.
SAluminized-steel primary heat exchanger.
SStainless-steel condensing secondary heat exchanger.
SHigh-quality corrosion-resistant prepainted steel cabinet with
hemmed edges for safety.
SFactory-configured ready for upflow applications.
SDirect-vent/sealed combustion, single-pipe venting or ventilated
combustion air.
SPSC blower motor, single-speed inducer motor, and single-stage
gas valve.
SSelf-diagnostics with SuperBrite LED.
SApproved for Twinning applications (040--12 through 120-20
sizes, only).
SPropane convertible (See accessory list).
SApproved for Manufactured Housing/Mobile Home applications
(except 140,000 Btuh input) with MH accessory kit.
SConvenient Air Purifier and Humidifier connections.
SResidential installations may be eligible for consumer financing
through the Retail Credit Program.
SCertified to leak 2% or less of nominal air conditioning CFM
delivered when pressurized to 1--in. water column with all
present air inlets, air outlets, and condensate drain port(s) sealed.
Use of the AHRI Certified TM Mark indicates a
manufacturer’s participation in the program. For
verification of certification for individual products,
go to www.ahridirectory.org.
CERTIFIED

2
SAP ORDERING
NO.
CASING
DIMENSIONS
(IN.)
RATED HEATING
OUTPUT† HEATING AIRFLOW COOLING
CFM
@0.5ESP
(in WC)
MOTOR HP-SPEED
APPROX SHIP
WEIGHT
H D W (BTUH) AFUE CFM‡
Heating
ESP
(in. WC) LB (KG)
59SC5A040S14--10 35 29.5 14.2 39,000 95.5% 820 0.10 625-905 1/2 - 4 123 55.8
59SC5A040S17--12 35 29.5 17.5 39,000 95.5% 1000 0.10 650-1050 1/2 - 5 134 60.8
59SC5A060S14--10 35 29.5 14.2 58,000 95.5% 840 0.12 675-1130 1/2 - 4 127 57.6
59SC5A060S17--14 35 29.5 17.5 58,000 95.5% 980 0.12 650-1420 1/2 - 5 144 65.3
59SC5A080S17--16 35 29.5 17.5 78,000 95.5% 1040 0.15 810-1600 3/4 - 5 154 69.9
59SC5A080S21--20 35 29.5 21.0 78,000 95.5% 1695 0.15 1335-1970 1-5 162 73.5
59SC5A100S21--14 35 29.5 21.0 97,000 95.5% 1510 0.20 915---1545 1/2 - 4 169 76.7
59SC5A100S21--20 35 29.5 21.0 97,000 95.5% 1680 0.20 1345---2065 1-5 169 76.7
59SC5A120S24--20 35 29.5 24.5 117,000 95.5% 2245 0.20 1320-2105 1-5 186 84.4
59SC5A140S24--20 35 29.5 24.5 135,000 95.5% 2175 0.20 1290---2035 1-5 190 86.2
† Capacity in accordance with DOE test procedures. Ratings are position dependent. See rating plate.
‡Heating CFM at factory default blower motor heating tap settings.
ESP --- External Static Pressure
FEATURES AND BENEFITS
HYBRID HEATRDual Fuel system — This system can provide
more control over your monthly energy bills by automatically
selecting the most economical method of heating. With HYBRID
HEAT components, our system automatically switches between the
gas furnace and the single--stage electric heat pump as outside
temperatures change to maintain greater efficiency and comfort
than with any traditional single-source heating system. The heat
pump also delivers high-efficiency cooling in the summer.
Power HeattIgniter — 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 gas furnace reliability and continues Carrier’s tradition of
technology leadership and innovation in providing a reliable and
durable product.
Reliable Heat Exchanger Design — The aluminized steel, clam
shell primary heat exchanger was re--engineered to achieve greater
efficiency out of a smaller size. The first two passes of the heat
exchanger are based on the current 80% product, a design with
more than ten years of field-proven performance and success.
These innovations, paired with the continuation of a crimped,
no-weld seam create an efficient, robust design for this essential
component.
The condensing heat exchanger, a stainless steel fin and tube
design, is positioned in the furnace to extract additional heat.
Stainless steel coupling box componentry between heat exchangers
has exceptional corrosion resistance in both natural gas and
propane applications.
4-Way Multipoise Design — One model for all applications –
there is no need to stock special downflow or horizontal models
when one unit will do it all. The new heat exchanger design allows
these units to achieve the certified AFUE in all positions.
Direct or Single-pipe Venting, or Optional Ventilated
Combustion Air — This furnace can be installed as a 2-pipe
(Direct Vent) furnace, in an optional ventilated combustion air
application, or in single-pipe, non-direct vent applications. This
provides added flexibility to meet diverse installation needs.
Sealed Combustion System — This furnace brings in combustion
air from outside the furnace, which results in especially quiet
operation. By sealing the entire combustion vestibule, the entire
furnace can be made quieter, not just the burners.
Monoport Burners — The burners are specially designed and
finely tuned for smooth, quiet combustion and economical
operation.
Bottom Closure — Factory-installed for side return; easily
removable for bottom return. The multi-use bottom closure can
also serve for roll-out protection in horizontal applications, and act
as the bottom closure for the optional return air base accessory.
Blower Access Panel Switch — Automatically shuts off 115-v
power to furnace whenever blower access panel is opened.
Quality Registration — Our furnaces are engineered and
manufactured under an ISO 9001 registered quality system.
Certifications — This furnace is CSA (AGA and CGA) design
certified for use with natural and propane gases. The furnace is
factory--shipped for use with natural gas. A CSA listed gas
conversion kit is required to convert furnace for use with propane
gas. The efficiency is AHRI efficiency rating certified. This furnace
meets California Air Quality Management District emission
requirements.
59SC5A

3
SPECIFICATIONS
Heating Capacity and Efficiency 040-10 040-12 060-10 060-14 080-16 080-20 100-14 100-20 120-20 140-20
Input High
Heat (BTUH) 40,000 40,000 60,000 60,000 80,000 80,000 100,000 100,000 120,000 140,000
Output High
Heat (BTUH) 39,000 39,000 58,000 58,000 78,000 78,000 97,000 97,000 117,000 135,000
Efficiency AFUE % (ICS) 95.5 95.5 95.5 95.5 95.5 95.5 95.5 95.5 95.5 95.5
Certified Temperature
Rise Range ºF (ºC) High Heat 40 - 70 (22 - 39)
35 - 65
(19 - 36)
40 - 70
(22 - 39)
40 - 70
(22 - 39)
40 - 70
(22 - 39)
40 - 70
(22 - 39)
40 - 70
(22 - 39)
40 - 70
(22 - 39)
40 - 70
(22 - 39)
45 - 75
(25 - 42)
Airflow Capacity and Blower Data 040-10 040-12 060-10 060-14 080-16 080-20 100-14 100-20 120-20 140-20
Rated External Static
Pressure (in. WC.)
Heating 0.10 0.10 0.12 0.12 0.15 0.15 0.20 0.20 0.20 0.20
Cooling 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Airflow Delivery
@ Rated ESP (CFM)
High Heat 820 1000 840 980 1040 1695 1510 1680 2245 2175
Cooling 905 1050 1130 1420 1600 1970 1545 2065 2105 2035
Cooling Capacity (tons) 400 CFM/ton 22.5 2.5 3.5 4 5 4 5 5 5
350 CFM/ton 2.5 3 3 4 4.5 5.5 4.5 6 6 6
Direct-Drive Motor Type Permanent Split Capacitor (PSC)
Direct-Drive Motor HP 0.5 0.5 0.5 0.5 0.75 10.5 1 1 1
Motor Full Load Amps 6.2 6.8 6.2 6.8 7.9 13.8 6.5 13.8 14.1 14.1
RPM Range 500 -1150
Speed Selections 4 5 4 5 5 5 4 5 5 5
Blower Wheel Dia x Width in. 11 x 7 11 x 8 11 x 7 11 x 8 11 x 8 11 x 10 11 x 10 11 x 10 11 x 11 11 x 11
Air Filtration System Field Supplied
Filter Used for Certified Watt Data* KGAWF**06UFR
Electrical Data 040-10 040-12 060-10 060-14 080-16 080-20 100-14 100-20 120-20 140-20
Input Voltage Volts-Hertz-Phase 115-60-1
Operating Voltage Range Min-Max 104-127
Maximum Input Amps Amps 6.8 8.3 7.0 8.4 9.6 14.5 7.6 14.6 14.9 14.9
Unit Ampacity Amps 9.5 11.4 9.7 11.5 13.0 19.1 10.4 19.2 19.6 19.6
Minimum Wire Size AWG 14 14 14 14 14 12 14 12 12 12
Maximum Wire Length
@ Minimum Wire Size
Feet 39 32 38 32 28 30 35 29 29 29
(M) (11.9) (9.8) (11.6) (9.8) (8.5) (9.1) (10.7) (8.8) (8.8) (8.8)
Maximum Fuse/Ckt Bkr
(Time-Delay Type Recom-
mended)
Amps 15 15 15 15 15 20 15 20 20 20
Transformer Capacity (24vac output) 40 VA
External Control Power
Available
Heating 27.9 VA
Cooling 34.6 VA
Controls 040-10 040-12 060-10 060-14 080-16 080-20 100-14 100-20 120-20 140-20
Gas Connection Size 1/2" - NPT
Burners (Monoport) 2 2 3 3 4 4 5 5 6 7
Gas Valve (Redundant) Manufacturer White Rogers
Minimum Inlet Gas pressure (in. wc) 4.5
Maximum Inlet Gas pressure (in. wc) 13.6
Gas Conversion Kit - Natural to Propane KGANP50011SP
Gas Conversion Kit - Propane to Natural KGAPN42011SP
Manufactured (Mobile) Home Kit KGAMH0601KIT N/A
Ignition Device Silicon Nitride
Limit Control 165 180 165 180 170 200 180 180 160 155
Heating Blower Control (Heating Off-Delay) Adjustable: 90, 120, 150, 180 seconds
Cooling Blower Control (Time Delay Relay) 90 seconds
Communication System none
Thermostat Connections Com24V,R,W,G,Y
Accessory Connections EAC (115vac); HUM (24vac)
* See Accessory List for part numbers available.
59SC5A

4
MODEL NUMBER NOMENCLATURE
59 TN6A060 V17 -- -- 14
S - Single Stage
T - Two Stage
M - Modulating
C - Comfort
P - Performance
N - Infinity
S - Standard
E - Energy Efficient
V - Variable Speed
14 - 14.2”
17 - 17.5”
21 - 21.0”
24 - 24.5”
08 - 800 CFM
10 - 1000 CFM
12 - 1200 CFM
14 - 1400 CFM
16 - 1600 CFM
18 - 1800 CFM
20 - 2000 CFM
22 - 2200 CFM
Family
Major Series
Voltage
Minor Series
1 - 2
Family
3
Htg. Stages Tier
45
Base Effy.
6
Major Series Htg. Cap.
7 - 9
Motor
10 11 - 12
Width
13
Voltage
14
Minor Series Airflow
15 - 16
040=40,000 BTU
060=60,000 BTU
080=80,000 BTU
100=100,000 BTU
120=120,000 BTU
140=140,000 BTU
Not all familes have these models.
Example of Model Number
0 - +90 AFUE
2 - +92 AFUE
3 - +93 AFUE
5 - +95 AFUE
6 - +96 AFUE
7 - +97 AFUE
A12373
FURNACE COMPONENTS
RATING PLATE NOT SHOWN
(LOCATED ON BLOWER DOOR)
GAS VALVE
MAIN LIMIT SWITCH
(BEHIND GAS VALVE)
REPRESENTATIVE DRAWING ONLY, SOME MODELS MAY VARY IN APPEARANCE.
ELECTRICAL JUNCTION
BOX (IF REQUIRED,
LOCATION MAY VARY)
MEDIA CABINET
OPERATING INSTRUCTIONS
NOT SHOWN (LOCATED ON
MAIN FURNACE DOOR, SEE
OPERATING INSTRUCTIONS
INSIDE DOOR FIGURE).
FURNACE
CONTROL
BOARD
MANUAL RESET
ROLLOUT SWITCH
FLAME
SENSOR
MANUAL RESET
ROLLOUT SWITCH
GAS BURNER
HOT SURFACE
IGNITER
INDUCER MOTOR
ASSEMBLY
BLOWER AND
MOTOR
CAPACITOR/
POWER CHOKE
(IF USED)
BLOWER DOOR
SAFETY SWITCH
A11408
59SC5A

5
ACCESSORIES
DESCRIPTION PART NUMBER 040--- 10 060--- 10 040---12 060--- 14 080--- 16 080---20 100-14 100-20 120-20 140-20
Venting Accessories
Vent Kit - Through the Cabinet KGADC0101BVC DDDDDDDDDD
Vent Terminal - Concentric - 2” (51 mm) KGAVT0701CVT
See Venting Tables
Vent Terminal - Concentric - 3” (76 mm) KGAVT0801CVT
Vent Terminal Bracket - 2” (51 mm) KGAVT0101BRA
Vent Terminal Bracket - 3” (76 mm) KGAVT0201BRA
Vent Kit --- Rubber Coupling KGAAC0101RVC See Venting Tables
Condensate Drainage Accessories
Freeze Protect Kit - Heat Tape KGAHT0101CFP DDDDDDDDDD
CPVC to PVC Drain Adapters - 1/2” CPVC to 3/4”
PVC KGAAD0110PVC DDDDDDDDDD
Horizontal Trap Grommet - Direct Vent KGACK0101HCK All DV Horizontal
Condensate Neutralizer Kit P908---0001 DDDDDDDDDD
External Trap Kit KGAET0201ETK DDDDDDDDDD
Ductwork Adapter Accessories
Furnace Base Kit for Combustible Floors KGASB0201ALL DDDDDDDDDD
Coil Adapter Kits --- No Offset KGADA0101ALL DDDDDDDDDD
Coil Adapter Kits --- Single Offset KGADA0201ALL DDDDDDDDDD
Coil Adapter Kits --- Double Offset KGADA0301ALL DDDDDDDDDD
Return Air Base (Upflow Applications) 14.0 ---in.
wide KGARP0301B14 D D
Return Air Base (Upflow Applications) 17.5 ---in.
wide KGARP0301B17 DDD
Return Air Base (Upflow Applications) 21.0 ---in.
wide KGARP0301B21 D D D
Return Air Base (Upflow Applications) 24.5 ---in.
wide KGARP0301B24 D D
IAQ Device Duct Adapters 20.0 ---in. IAQ to 16 in.
Side Return KGAAD0101MEC 20”x25” IAQ Devices
IAQ Device Duct Adapters 24.0 ---in. IAQ to 16 in.
Side Return KGAAD0201MEC 24”x25” IAQ Devices
Gas Conversion Accessories
Mobile Home Kit KGAMH0601KIT DDDDDDDDD
Gas Conversion Kit - Nat to LP KGANP50011SP DDDDDDDDDD
Gas Conversion Kit - LP to Nat KGAPN42011SP DDDDDDDDDD
GasOrificeKit-#42(NatGas) LH32DB207 DDDDDDDDDD
GasOrificeKit-#43(NatGas) LH32DB202 DDDDDDDDDD
GasOrificeKit-#44(NatGas) LH32DB200 DDDDDDDDDD
GasOrificeKit-#45(NatGas) LH32DB205 DDDDDDDDDD
GasOrificeKit-#46(NatGas) LH32DB208 DDDDDDDDDD
GasOrificeKit-#47(NatGas) LH32DB078 DDDDDDDDDD
GasOrificeKit-#48(NatGas) LH32DB076 DDDDDDDDDD
Gas Orifice Kit - #54 (LP) LH32DB203 DDDDDDDDDD
Gas Orifice Kit - #55 (LP) LH32DB201 DDDDDDDDDD
Gas Orifice Kit - #56 (LP) LH32DB206 DDDDDDDDDD
Gas Orifice Kit - 1.25mm (LP) LH32DB209 DDDDDDDDDD
Gas Orifice Kit - 1.30mm (LP) LH32DB210 DDDDDDDDDD
Control Accessories
Twinning Kit KGATW0701HSI D DDDDDD
IAQ Accessories
Filter Rack --- Side Return for 1” Filters KGAFR0801SRE DDDDDDDDDD
Filter Rack --- Bottom Return for 1” Filters --- 14.2”
wide KGBFR0401B14 DDDDDDDDDD
Filter Rack --- Bottom Return for 1” Filters --- 17.5”
wide KGBFR0501B17 DDDDDDDDDD
Filter Rack --- Bottom Return for 1” Filters --- 21.0”
wide KGBFR0601B21 DDDDDDDDDD
Filter Rack --- Bottom Return for 1” Filters --- 24.5”
wide KGBFR0701B24 DDDDDDDDDD
Filter Pack (6 pack) --- Washable - 16x25x1 KGAWF1306UFR DDDDDDDDDD
Filter Pack (6 pack) --- Washable - 24x25x1 KGAWF1506UFR DDDDDDDDDD
EZ-Flex Filter - 16” (406 mm) EXPXXFIL0016 Use with EZXCAB---1016
EZ-Flex Filter - 20” (508 mm) EXPXXFIL0020 Use with EZXCAB---1020
EZ-Flex Filter - 24” (610 mm) EXPXXFIL0024 Use with EZXCAB---1024
EZ-Flex Filter with End Caps - 16” (406 mm) EXPXXUNV0016 Use with EZXCAB---1016
EZ-Flex Filter with End Caps - 20” (508 mm) EXPXXUNV0020 Use with EZXCAB---1020
EZ-Flex Filter with End Caps - 24” (610 mm) EXPXXUNV0024 Use with EZXCAB---1024
Cartridge Media Filter - 16” (406 mm) FILXXCAR0016 Use with FILCABXL ---1016
Cartridge Media Filter - 20” (508 mm) FILXXCAR0020 Use with FILCABXL ---1020
Cartridge Media Filter - 24” (610 mm) FILXXCAR0024 Use with FILCABXL ---1024
EZ Flex Cabinet Side or Bottom Return 4” Filters
--- 1 6 ” EZXCABCC0016 DDDDD
EZ Flex Cabinet Side or Bottom Return 4” Filters
--- 2 0 ” EZXCABCC0020 D D D
EZ Flex Cabinet Side or Bottom Return 4” Filters
--- 2 4 ” FILCABXL0024 D D
D= Used with the model furnace
59SC5A

6
AIR DELIVERY -- CFM (BOTTOM RETURN WITH FILTER)
UNIT SIZE RETURN-AIR
CONNECTION
SPEED
TAPS 2
EXTERNAL STATIC PRESSURE (IN. W.C.) 6
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
040---10 SIDE/BOTTOM
Black 1100 1055 1010 960 905 850 795 740 685 620
Yellow 955 915 875 830 790 740 695 645 590 530
Blue 820 795 765 730 695 655 615 570 515 460
Red 730 710 680 655 625 595 555 515 465 400
040---12 SIDE/BOTTOM
Black 1245 1195 1150 1100 1050 1000 945 890 830 775
Yellow 1165 1120 1075 1030 980 925 870 815 760 710
Orange 1045 1015 965 925 885 840 790 740 695 640
Blue 1000 960 930 890 850 810 765 715 665 615
Red 735 725 700 680 650 625 590 555 515 470
060---10 SIDE/BOTTOM
Black 1340 1295 1245 1190 1130 1065 1005 895 815 725
Yellow 1035 1010 980 945 910 865 795 730 665 605
Blue 845 825 810 785 755 710 670 625 570 515
Red 5770 750 730 710 675 640 600 560 510 455
060---14 SIDE/BOTTOM
Black 1665 1615 1550 1485 1420 1345 1270 1190 1105 985
Yellow 1340 1320 1295 1260 1215 1165 1110 1045 925 850
Orange 1050 1045 1035 1015 995 960 915 845 785 725
Blue 985 980 975 950 930 900 845 795 740 690
Red 5735 720 700 675 650 620 595 560 520 480
080---16 SIDE/BOTTOM
Black 1870 1810 1740 1670 1600 1525 1440 1355 1270 1180
Yellow 1525 1495 1460 1415 1365 1305 1240 1170 1090 990
Orange 1375 1355 1330 1300 1260 1210 1155 1090 1025 940
Blue 1045 1040 1030 1010 985 960 920 875 825 745
Red 5880 865 850 835 810 785 750 715 665 605
080---20 BOTTOM or
TWO-SIDES 3,4
Black 2360 2250 2160 2065 1970 1880 1785 1685 1580 1455
Yellow 2100 2030 1960 1885 1805 1720 1635 1545 1440 1305
Orange 1840 1810 1765 1725 1665 1590 1515 1430 1335 1240
Blue 1705 1685 1660 1615 1570 1510 1445 1370 1280 1135
Red 1425 1410 1385 1365 1335 1290 1245 1190 1120 1050
100---14 SIDE/BOTTOM
Black 1750 1705 1660 1605 1545 1475 1405 1305 1220 1140
Blue 1550 1510 1470 1430 1380 1320 1245 1170 1095 1015
Yellow 51290 1255 1220 1180 1130 1075 1020 960 885 800
Red 51085 1045 1010 960 915 865 805 740 665 595
100---20 BOTTOM or
TWO-SIDES 3,4
Black 2415 2330 2245 2155 2065 1965 1865 1760 1645 1530
Yellow 2130 2075 2010 1945 1865 1785 1695 1600 1490 1375
Orange 1830 1815 1785 1740 1685 1625 1550 1470 1370 1255
Blue 1690 1680 1655 1620 1580 1530 1465 1385 1295 1185
Red 1415 1405 1390 1370 1345 1305 1260 1200 1125 1050
120---20 BOTTOM or
TWO-SIDES 3,4
Black 2440 2360 2295 2215 2105 1975 1815 1710 1575 1405
Blue 2300 2245 2185 2090 2005 1855 1745 1635 1505 1370
Yellow 1805 1780 1750 1705 1650 1595 1515 1430 1330 1230
Orange 51560 1550 1535 1505 1470 1420 1360 1285 1205 1130
Red 51390 1385 1370 1345 1320 1285 1230 1175 1105 1035
140---20 BOTTOM or
TWO-SIDES 3,4
Black 2410 2325 2230 2135 2035 1930 1820 1700 1575 1445
Blue 2250 2175 2100 2020 1930 1825 1715 1600 1485 1370
Yellow 51740 1725 1700 1660 1610 1550 1470 1390 1295 1190
Orange 51500 1495 1485 1465 1435 1390 1335 1265 1185 1090
Red 51350 1345 1335 1315 1290 1255 1210 1150 1080 995
NOTE:
1. A filter is required for each return---air inlet. Airflow performance includes a 3/4---in. (19 mm) washable filter media such as contained in a factory---author-
ized accessory filter rack. See accessory list. To determine airflow performance without this filter, assume an additional 0.1 in. w.c.. available external static
pressure.
2. Blower speed taps are not always in the same order. Factory default blower connections are as follows:
a. Heating airflow --- BLUE (also used for Continuous Fan)
b. Cooling airflow --- BLACK (enabled when the Y terminal is energized)
ADJUST THE BLOWER SPEED TAPS AS NECESSARY FOR THE PROPER AIR TEMPERATURE RISE FOR EACH INSTALLATION.
3. Airflows over 1800 CFM require bottom return, two---side return, or bottom and side return. A minimum filter size of 20” x 25” (508 x 635 mm) is required.
4. For upflow applications, air entering from one side into both the side of the furnace and a return air base counts as a side and bottom return.
5. Highlighted areas indicate that this airflow range is beyond the range allowed for heating. THESE AIRFLOW RANGES MAY ONLY BE USED FOR COOL-
ING.
6. All airflows that are shown in BOLD exceed 0.58 watts per CFM at the given external static pressure.
59SC5A

7
MAXIMUM EQUIVALENT VENT LENGTH -- FT. (M)
Table 1 – Maximum Equivalent Vent Length -- Ft. (M)
0 to 4500 Ft. (0 to 1370 M) Altitude
NOTE: Maximum Equivalent Vent Length (MEVL) includes standard and concentric vent termination and does NOT include elbows.
Use Table 2 - Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application.
Altitude
FT (M)
Unit Size
BTU/Hr DIRECT VENT (2-PIPE) AND NON-DIRECT VENT (1-PIPE)
Vent Pipe Diameter (in.) 1
1-1/2 22-1/2 3 4
0 to 2000
(0 to 610)
40,000 350 (15.2) 210 (64.0) 250 (76.2) NA 2NA
60,000 30 (9.1) 135 (41.1) 235 (71.6) 265 (80.8) NA
80,000 20 (6.1) 70 (21.3) 175 (53.3) 235 (71.6) 265 (80.8)
100,000 NA 25 (7.6) 110 (33.5) 235 (71.6) 265 (80.8)
120,000 NA NA 15 (4.6) 100 (30.5) 250 (76.2)
140,000 4NA NA 10 (3.0) 90 (27.4) 210 (64.0)
2001 to 3000
(610 to 914)
40,000 45 (13.7) 198 (60.4) 232 (70.7) NA NA
60,000 27 (8.2) 127 (38.7) 222 (67.7) 250 (76.2) NA
80,000 17 (5.2) 64 (19.5) 165 (50.3) 222 (67.7) 249 (75.9)
100,000 NA 22 (6.7) 104 (31.7) 223 (68.0) 250 (76.2)
120,000 NA NA 11 (3.4) 93 (28.3) 237 (72.2)
140,000 4NA NA NA 80 (24.4) 185 (56.4)
3001 to 4000
(914 to 1219)
40,000 39 (11.9) 184 (56.1) 214 (65.2) NA NA
60,000 23 (7.0) 119 (36.3) 210 (64.0) 235 (71.6) NA
80,000 15 (4.6) 59 (18.0) 155 (47.2) 210 (64.0) 232 (70.7)
100,000 NA 19 (5.8) 98 (29.9) 211 (64.3) 236 (71.9)
120,000 NA NA 8(2.4) 86 (26.2) 224 (68.3)
140,000 4NA NA NA 79 (24.1) 158 (48.2)
4001 to 4500
(1219 to 1370)
40,000 36 (11.0) 177 (53.9) 205 (62.5) NA NA
60,000 21 (6.4) 115 (35.1) 204 (62.2) 228 (69.5) NA
80,000 14 (4.3) 56 (17.1) 150 (45.7) 202 (61.6) 224 (68.3)
100,000 NA 17 (5.2) 94 (28.7) 205 (62.5) 229 (69.8)
120,000 NA NA NA 83 (25.3) 217 (66.1)
140,000 4NA NA NA 69 (21.0) 146 (44.5)
NOTES: See notes at end of venting tables.
See Table 3 for altitudes over 4500 ft. (1370 M)
Long Medium Mitered
Concentric
Standard
ELBOW CONFIGURATIONS VENT TERMINAL CONFIGURATIONS
A11580
Table 2 – Deductions from Maximum Equivalent Vent Length -- Ft. (M)
Pipe Diameter (in): 1-1/2 22-1/2 3 4
Mitered 90º Elbow 8(2.4) 8(2.4) 8(2.4) 8(2.4) 8(2.4)
Medium Radius 90º Elbow 5(1.5) 5(1.5) 5(1.5) 5(1.5) 5(1.5)
Long Radius 90º Elbow 3(0.9) 3(0.9) 3(0.9) 3(0.9) 3(0.9)
Mitered 45º Elbow 4(1.2) 4(1.2) 4(1.2) 4(1.2) 4(1.2)
Medium Radius 45º Elbow 2.5 (0.8) 2.5 (0.8) 2.5 (0.8) 2.5 (0.8) 2.5 (0.8)
Long Radius 45º Elbow 1.5 (0.5) 1.5 (0.5) 1.5 (0.5) 1.5 (0.5) 1.5 (0.5)
Tee 16 (4.9) 16 (4.9) 16 (4.9) 16 (4.9) 16 (4.9)
Concentric Vent Termination NA 0(0.0) NA 0(0.0) NA
Standard Vent Termination 0(0.0) 0(0.0) 0(0.0) 0(0.0) 0(0.0)
59SC5A

8
Venting System Length Calculations
The Total Equivalent Vent Length (TEVL) for EACH combustion air or vent pipe equals the length of the venting system, plus the equivalent
length of elbows used in the venting system from Table 2.
Standard vent terminations or factory accessory concentric vent terminations count for zero deduction.
See vent system manufacturer’s data for equivalent lengths of flexible vent pipe or other termination systems. DO NOT ASSUME that one
foot of flexible vent pipe equals one foot of straight PVC/ABS DWV vent pipe.
Compare the Total Equivalent Vent Length to the Maximum Equivalent Vent Lengths in Tables 1 and 3.
Example 1
A direct--vent 60,000 Btuh furnace installed at 2100 ft. (640 M). Venting system includes, FOR EACH PIPE, 100 feet (30 M) of vent pipe,
95 feet (28 M) of combustion air inlet pipe, (3) 90_long radius elbows, (2) 45_long radius elbows and a factory accessory concentric vent
kit.
Can this application use 2--in. (50 mm ND) PVC/ABS DWV vent piping?
Measure the required linear length of air inlet and vent pipe; insert the
longest of the two here: 100 ft Use length of the longer of the vent or air inlet piping system
Add equiv length of (3) 90º long-radius elbows
(use the highest number of elbows for either the
vent or inlet pipe)
3 x 3ft =9ft. From Table 2
Add equiv length of (2) 45º long-radius elbows
(use the highest number of elbows for either the
vent or inlet pipe)
2 x 1.5 ft =3ft. From Table 2
Add equiv length of vent termination 0ft. From Table 2
Add correction for flexible vent pipe, if any 0ft. From Vent Manufacturer’s instructions;
zero for PVC/ABS DWV
Total Equivalent Vent Length (TEVL) 112 ft. Add all of the above lines
Maximum Equivalent Vent Length (MEVL) 127 ft. For 2” pipe from Table 1
Is TEVL less than MEVL? YES Therefore, 2” pipe may be used
Example 2
A direct--vent 60,000 Btuh furnace installed at 2100 ft. (640 M) Venting system includes, FOR EACH PIPE, 100 feet (30 M) of vent pipe,
95 feet (28 M) of combustion air inlet pipe, (3) 90_long radius elbows, and a polypropylene concentric vent kit. Also includes 20 feet (6 M)
of flexible polypropylene vent pipe, included within the 100 feet (30 M) of vent pipe.
Assume that one meter of flexible 60 mm or 80 mm polypropylene pipe equals 2.0 Meters of PVC/ABS pipe. VERIFY FROM VENT
MANUFACTURER’S INSTRUCTIONS.
Can this application use 60 mm (O.D.) polypropylene vent piping? If not what size piping can be used?
Measure the required linear length of air inlet and vent pipe; insert the
longest of the two here: 100 ft Use length of the longer of the vent or air inlet piping system
Add equiv length of (3) 90º long-radius elbows
(use the highest number of elbows for either the
vent or inlet pipe)
3 x 3ft =9ft. From Vent Manufacturer’s instructions
Add equiv length of (2) 45º long-radius elbows
(use the highest number of elbows for either the
vent or inlet pipe)
0 x = 0ft. From Vent Manufacturer’s instructions
Add equiv length of vent termination 9M x3ft/M =18 ft. From Vent Manufacturer’s instructions
Add correction for flexible vent pipe, if any 1.8 x20 ft =36 ft. From Vent Manufacturer’s instructions
Total Equivalent Vent Length (TEVL) 163 ft. Add all of the above lines
Maximum Equivalent Vent Length (MEVL) 127 ft. For 2” pipe from Table 1
Is TEVL less than MEVL? NO Therefore, 60mm pipe may NOT be used;
try 80 mm
Maximum Equivalent Vent Length (MEVL) 250 ft. For 3” pipe from Table 1
Is TEVL less than MEVL? YES Therefore, 80 mm pipe may be used
59SC5A

9
MAXIMUM EQUIVALENT VENT LENGTH -- FT. (M) (CONTINUED)
Table 3 – Maximum Equivalent Vent Length -- Ft. (M)
4501 to 10,000 Ft. (0 to 1370 M) Altitude
NOTE: Maximum Equivalent Vent Length (MEVL) includes standard and concentric vent termination and does NOT include elbows.
Use Table 2 - Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application.
Altitude
FT (M) 5Unit Size
DIRECT VENT (2-PIPE) AND SINGLE-PIPE
Vent Pipe Diameter (in.) 1
1-1/2 22-1/2 3 4
4501 to 5000
(1370 to 1524)
40,000 33 (10.1) 171 (52.1) 196 (59.7) NA 2NA
60,000 20 (6.1) 111 (33.8) 198 (60.4) 221 (67.4) NA
80,000 13 (4.0) 54 (16.5) 146 (44.5) 195 (59.4) 216 (65.8)
100,000 NA 16 (4.9) 91 (27.7) 200 (61.0) 222 (67.7)
120,000 NA NA NA 80 (24.4) 211 (64.3)
140,000 4NA NA NA 60 (18.3) 134 (40.8)
5001 to 6000
(1524 to 1829)
40,000 27 (8.2) 158 (48.2) 179 (54.6) NA NA
60,000 16 (4.9) 103 (31.4) 186 (56.7) 207 (63.1) NA
80,000 11 (3.4) 49 (14.9) 137 (41.8) 183 (55.8) 200 (61.0)
100,000 NA 12 (3.7) 85 (25.9) 188 (57.3) 208 (63.4)
120,000 NA NA NA 74 (22.6) 199 (60.7)
140,000 4NA NA NA 50 (15.2) 109 (33.2)
6001 to 7000
(1829 to 2134)
40,000 21 (6.4) 145 (44.2) 162 (49.4) NA NA
60,000 13 (4.0) 96 (29.3) 174 (53.0) 194 (59.1) NA
80,000 NA 44 (13.4) 120 (36.6) 171 (52.1) 185 (56.4)
100,000 NA 10 (3.0) 79 (24.1) 178 (54.3) 195 (59.4)
120,000 NA NA NA 68 (20.7) 187 (57.0)
140,000 4NA NA NA 41 (12.5) 87 (26.5)
7001 to 8000
(2134 to 2438)
40,000 15 (4.6) 133 (40.5) 146 (44.5) NA NA
60,000 10 (3.0) 89 (27.1) 163 (49.7) 181 (55.2) NA
80,000 NA 40 (12.2) 120 (36.6) 159 (48.5) 170 (51.8)
100,000 NA NA 73 (22.3) 167 (50.9) 182 (55.5)
120,000 NA NA NA 62 (18.9) 175 (53.3)
140,000 4NA NA NA 32 (9.8) 63 (19.2)
8001 to 9000
(2438 to 2743)
40,000 10 (3.0) 121 (36.9) 130 (39.6) NA NA
60,000 7(2.1) 82 (25.0) 152 (46.3) 168 (51.2) NA
80,000 NA 35 (10.7) 111 (33.8) 148 (45.1) 156 (47.5)
100,000 NA NA 67 (20.4) 157 (47.9) 170 (51.8)
120,000 NA NA NA 56 (17.1) 164 (50.0)
140,000 4NA NA NA 23 (7.0) 42 (12.8)
9001 to 10,000
(2743 to 3048)
40,000 5(1.5) 110 (33.5) 115 (35.1) NA NA
60,000 NA 76 (23.2) 142 (43.3) 156 (47.5) NA
80,000 NA 31 (9.4) 103 (31.4) 137 (41.8) 142 (43.3)
100,000 NA NA 62 (18.9) 147 (44.8) 157 (47.9)
120,000 NA NA NA 51 (15.5) 153 (46.6)
140,000 4NA NA NA 16 (4.9) 20 (6.1)
NOTES:
1. Use only the vent pipe sizes shown for each furnace. It is NOT necessary to choose the smallest diameter pipe possible for venting.
2. NA --- Not allowed. Pressure switch will not close, or flame disturbance may result.
3. Total equivalent vent lengths under 10’ for 40,000 BTUH furnaces from 0 to 2000 ft. (0 to 610 M) above sea level require use of an outlet choke plate .
Failure to use an outlet choke when required may result in flame disturbance or flame sense lockout.
4. Not all furnace families include 140,000 BTUH input models.
5. Vent sizing for Canadian installations over 4500 ft (1370 M) above sea level are subject to acceptance by local authorities having jurisdiction.
6. Size both the combustion air and vent pipe independently, then use the larger size for both pipes.
7. Assume the two 45_elbows equal one 90_elbow. Wide radius elbows are desirable and may be required in some cases.
8. Elbow and pipe sections within the furnace casing and at the vent termination should not be included in vent length or elbow count.
9. The minimum pipe length is 5 ft. (1.5 M) linear feet (meters) for all applications.
10. Use 3---in. (76 mm) diameter vent termination kit for installations requiring 4---in. (102 mm) diameter pipe.
59SC5A

10
MAXIMUM ALLOWABLE EXPOSED VENT LENGTHS INSULATION TABLE -- FT. (M)
Maximum Length of Uninsulated and Insulated Vent Pipe-Ft (M)
Single Stage
Furnace
Input
Winter Design
Te m p ° F ( ° C )
Pipe
Length in
Ft. & M
No Insulation 3/8-in. (9.5 mm) Insulation 1/2-in. (12.7 mm) Insulation
Pipe Diameter-inches (mm) Pipe Diameter-inches (mm) Pipe Diameter-inches (mm)
11/2 221/2 3 4 11/2 221/2 3 4 11/2 221/2 3 4
(38) (51) (64) (76) (102) (38) (51) (64) (76) (102) (38) (51) (64) (76) (102)
40000
20 (-10)
Ft. 48 42 42 N/A N/A 50 122 111 N/A N/A 50 144 130 N/A N/A
M14.6 12.8 12.8 N/A N/A 15.2 37.2 33.8 N/A N/A 15.2 43.9 39.6 N/A N/A
0 (-20)
Ft. 25 19 17 N/A N/A 50 75 66 N/A N/A 50 90 79 N/A N/A
M7.6 5.8 5.2 N/A N/A 15.2 22.9 20.1 N/A N/A 15.2 27.4 24.1 N/A N/A
-20 (-30)
Ft. 14 7 5 N/A N/A 50 52 45 N/A N/A 50 64 55 N/A N/A
M4.3 2.1 1.5 N/A N/A 15.2 15.8 13.7 N/A N/A 15.2 19.5 16.8 N/A N/A
-40 (-40)
Ft. 700N/A N/A 50 38 31 N/A N/A 50 48 40 N/A N/A
M2.1 0.0 0.0 N/A N/A 15.2 11.6 9.4 N/A N/A 15.2 14.6 12.2 N/A N/A
60000
20 (-10)
Ft. 30 61 61 54 N/A 30 135 163 142 N/A 30 135 191 166 N/A
M9.1 18.6 18.6 16.5 N/A 9.1 41.1 49.7 43.3 N/A 9.1 41.1 58.2 50.6 N/A
0 (-20)
Ft. 30 31 30 23 N/A 30 113 100 85 N/A 30 135 120 101 N/A
M9.1 9.4 9.1 7.0 N/A 9.1 34.4 30.5 25.9 N/A 9.1 41.1 36.6 30.8 N/A
-20 (-30)
Ft. 24 17 15 7N/A 30 81 70 57 N/A 30 98 85 70 N/A
M7.3 5.2 4.6 2.1 N/A 9.1 24.7 21.3 17.4 N/A 9.1 29.9 25.9 21.3 N/A
-40 (-40)
Ft. 15 850N/A 30 61 52 40 N/A 30 75 64 51 N/A
M4.6 2.4 1.5 0.0 N/A 9.1 18.6 15.8 12.2 N/A 9.1 22.9 19.5 15.5 N/A
80000
20 (-10)
Ft. 20 70 78 70 60 20 70 175 183 154 20 70 175 215 181
M6.1 21.3 23.8 21.3 18.3 6.1 21.3 53.3 55.8 46.9 6.1 21.3 53.3 65.5 55.2
0 (-20)
Ft. 20 42 41 33 21 20 70 132 111 89 20 70 157 133 107
M6.1 12.8 12.5 10.1 6.4 6.1 21.3 40.2 33.8 27.1 6.1 21.3 47.9 40.5 32.6
-20 (-30)
Ft. 20 25 23 14 120 70 94 77 57 20 70 113 94 71
M6.1 7.6 7.0 4.3 0.3 6.1 21.3 28.7 23.5 17.4 6.1 21.3 34.4 28.7 21.6
-40 (-40)
Ft. 20 14 12 3 0 20 70 71 56 38 20 70 86 70 50
M6.1 4.3 3.7 0.9 0.0 6.1 21.3 21.6 17.1 11.6 6.1 21.3 26.2 21.3 15.2
100000
20 (-10)
Ft. N/A 25 99 89 78 N/A 25 110 233 265 N/A 25 110 235 229
MN/A 7.6 30.2 27.1 23.8 N/A 7.6 33.5 71.0 80.8 N/A 7.6 33.5 71.6 69.8
0 (-20)
Ft. N/A 25 55 46 33 N/A 25 110 145 117 N/A 25 110 173 140
MN/A 7.6 16.8 14.0 10.1 N/A 7.6 33.5 44.2 35.7 N/A 7.6 33.5 52.7 42.7
-20 (-30)
Ft. N/A 25 34 24 11 N/A 25 110 103 79 N/A 25 110 124 97
MN/A 7.6 10.4 7.3 3.4 N/A 7.6 33.5 31.4 24.1 N/A 7.6 33.5 37.8 29.6
-40 (-40)
Ft. N/A 23 20 11 0N/A 25 95 77 55 N/A 25 110 94 70
MN/A 7.0 6.1 3.4 0.0 N/A 7.6 29.0 23.5 16.8 N/A 7.6 33.5 28.7 21.3
120000
20 (-10)
Ft. N/A N/A 15 99 86 N/A N/A 15 100 219 N/A N/A 15 100 250
MN/A N/A 4.6 30.2 26.2 N/A N/A 4.6 30.5 66.8 N/A N/A 4.6 30.5 76.2
0 (-20)
Ft. N/A N/A 15 51 38 N/A N/A 15 100 130 N/A N/A 15 100 156
MN/A N/A 4.6 15.5 11.6 N/A N/A 4.6 30.5 39.6 N/A N/A 4.6 30.5 47.5
-20 (-30)
Ft. N/A N/A 15 28 14 N/A N/A 15 100 88 N/A N/A 15 100 108
MN/A N/A 4.6 8.5 4.3 N/A N/A 4.6 30.5 26.8 N/A N/A 4.6 30.5 32.9
-40 (-40)
Ft. N/A N/A 15 14 0N/A N/A 15 85 62 N/A N/A 15 100 79
MN/A N/A 4.6 4.3 0.0 N/A N/A 4.6 25.9 18.9 N/A N/A 4.6 30.5 24.1
140000
20 (-10)
Ft. N/A N/A 10 90 99 N/A N/A 10 90 210 N/A N/A 10 90 210
MN/A N/A 3.0 27.4 30.2 N/A N/A 3.0 27.4 64.0 N/A N/A 3.0 27.4 64.0
0 (-20)
Ft. N/A N/A 10 61 47 N/A N/A 10 90 153 N/A N/A 10 90 183
MN/A N/A 3.0 18.6 14.3 N/A N/A 3.0 27.4 46.6 N/A N/A 3.0 27.4 55.8
-20 (-30)
Ft. N/A N/A 10 35 21 N/A N/A 10 90 104 N/A N/A 10 90 128
MN/A N/A 3.0 10.7 6.4 N/A N/A 3.0 27.4 31.7 N/A N/A 3.0 27.4 39.0
-40 (-40)
Ft. N/A N/A 10 20 NA N/A N/A 10 90 75 N/A N/A 10 90 94
MN/A N/A 3.0 6.1 NA N/A N/A 3.0 27.4 22.9 N/A N/A 3.0 27.4 28.7
*Not all families have these models.
59SC5A

11
RETURN AIR TEMPERATURE
This furnace is designed for continuous return--air minimum temperature of 60_F(15_C) db or intermittent operation down to 55_F(13_C)
db such as when used with a night setback thermometer. Return--air temperature must not exceed 80_F(27_C) db. Failure to follow these
return air limits may affect reliability of heat exchangers, motors and controls.
60
80 / 27˚C
/ 16˚C
SUPPLY AIR
A10490
MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS
POSITION CLEARANCE
Rear 0(0mm)
Front (Combustion air openings in furnace and in structure) 1in.(25mm)
Required for service** 24 in. (610 mm)*
All Sides of Supply Plenum** 1in.(25mm)
Sides 0(0mm)
Vent 0(0mm)
Top of Furnace 1in. (25mm)
* Recommended
**Consult your local building codes
COMBUSTION--AIR PIPE FOR NON--DIRECT (1--PIPE) VENT APPLICATION
FIELD-SUPPLIED
2-IN. (51 mm) DIA.
PVC PIPE
FIELD-SUPPLIED
2-IN. (51 mm) DIA.
MITERED RADIUS
PVC 90°ELBOW
12” (300 mm) MINIMUM
A12376
NOTE: See Installation Instructions for specific venting configurations.
59SC5A

12
DOWNFLOW SUBBASE
LOCATING
TAB
LOCATING
TAB
1234
4321
B
D
C
A
1
1
/4-IN. TYP
PLENUM
OPENING
FACTORY-SUPPLIED
FIELD-INSTALLED
INSULATION
Assembled Disassembled
A97427 A88207
DIMENSIONS (IN. / MM)
FURNACE
CASING WIDTH
FURNACE IN DOWNFLOW
APPLICATION
PLENUM OPENING* FLOOR OPENING HOLE NO. FOR
WIDTH
ADJUSTMENT
A B C D
14---3/16 (360) Furnace with or without Cased Coil
Assembly or Coil Box
11---3/16
(322) 19 (483) 13--- 7/16 (341)
20---5/8
(600) 4
17---1/2 (445) Furnace with or without Cased Coil
Assembly or Coil Box
15---1/8
(384) 19 (483) 16--- 3/4 (426)
20---5/8
(600) 3
21 (533) Furnace with or without Cased Coil
Assembly or Coil Box
18---5/8
(396) 19 (483) 20--- 1/4 (514)
20---5/8
(600) 2
24---1/2 (622) Furnace with or without Cased Coil
Assembly or Coil Box
22---1/8
(562) 19 (483) 23--- 3/4 (603)
20---5/8
(600) 1
*The plenum should be constructed 1/4---in. (6 mm) smaller in width and depth than the plenum dimensions shown above.
Concentric Vent Kit
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.
Downflow Subbase
A88202
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 design certified for use with Carrier branded furnaces when
installed in downflow applications.
59SC5A

13
MEDIA FILTER CABINET
Media Filter
Cabinet AB
16" (406mm)
20" (508mm)
24" (610mm)
17" (432mm)
Furnace Side
Centerline Screw Slots
23-3/4”
23-3/8”
23-5/8"
5
34
Duct Side
Opening
Opening with Flanges Bent
24-1/4”
25-5/8"
B Opening
A
"
(600mm)
(594mm)
(603mm)
(146mm)
(651mm)
(616mm)
23-1/8”
(588mm)
16" (406mm)
20" (508mm)
24" (610mm)
21" (533mm)
25" (635mm)
NOTE: Media cabinet is matched to the bottom opening on furnace. May also be used for side return.
A12428
TYPICAL WIRING SCHEMATIC
115-V FIELD-
SUPPLIED
DISCONNECT
AUXILIARY
J-BOX
24-V
TERMINAL
BLOCK
THREE-WIRE
HEATING-ONLY
FIVE WIRE
NOTE 1
NOTE 2
FIELD-SUPPLIED
DISCONNECT
CONDENSING
UNIT
TWO
WIRE
FURNACE
C
O
N
T
R
O
L
R
G
COM
WCR GY
GND
GND
FIELD 24-V WIRING
FIELD 115-, 208/230-, 460-V WIRING
FACTORY 24-V WIRING
FACTORY 115-V WIRING
208/230- OR
460-V
THREE
PHASE
208/230-V
SINGLE
PHASE
BLOWER DOOR SWITCH
WHT
BLK
WHT
BLK
NOTES: Connect Y-terminal in furnace as shown for proper blower operation.
Some thermostats require a "C" terminal connection as shown.
If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
W
Y
GND
THERMOSTAT
TERMINALS
1.
2.
3.
A11387
59SC5A

14
DIMENSIONAL DRAWING
6 15/16
[176.1]
3
[76.2]
3
[76.2]
6 11/16
[170.1]
23 5/16
[592.9]
25 1/8
[638.7]
26 3/8
[670.0]
26 11/16
[678.1]
21
[534.0]
26 5/16
[668.8]
17 5/16
[439.2]
16 9/16
[420.9]
20 1/4
[513.9] 25 3/16
[639.1]
28 3/16
[715.9]
28 5/8
[726.4]
32 5/8
[829.5]
28 3/4
[730.5]
26 3/8
[669.9]
26 11/16
[678.1]
21 15/16
[557.4]
21 1/16
[535.8]
26 5/16
[668.8]
3
[76.2] AIR INTAKE
1 3/4
[44.5] GAS CONN
7/8
[22.2]
7/8
[22.2] POWER CONN
7/8
[22.2]
THERMOSTAT ENTRY
7/8
[22.2]
3
[76.2]
AIR INTAKE 1 3/4
[44.5] GAS CONN
7/8
[22.2]
7/8
[22.2]
3
[76.2 ]
7/8
[22.2]
7/8
[22.2] THERMOSTAT ENTRY
22 15/16
[581.9] 16 9/16
[420.9]
17 7/16
[442.3]
20 1/4
[513.9]
24
[609.7]
28 3/8
[720.4]
28 5/8
[726.9]
29 13/16
[757]
23 3/8
[592.0]
3
[76.2]
VENT
1 (BOTH SIDES)
[25.4]
D
2 3/10
[58.4]
C
BOTTOM RETURN
WIDTH
11/16
[17.5]
11/16
[17.5]
B
OUTLET WIDTH
A
22
[558.3] (BOTH SIDES)
14 13/16
[376.3]
35
[889.0]
5/8
[15.8]
1 5/16
[33.3]
29 1/2
[749.3]
19 1/8
[485.8]
20 5/8
[522.7]
23 7/16
[595.6]
[101.6]
4
[63.5]
2 1/2
18 1/16
[458.6]
2 1/2
[63.5] 4
[101.6]
20 5/8
[522.7]
BOTTOM INLET
21 5/8
[549.5]
6 1/16
[154.0]
PART NUMBER
SD5024-4
SHT
1
REV
E
NEXT SHEET
2
VENT
AIR INTAKE
AIR FLOW AIR FLOW
SIDE INLET
SIDE INLET
CONDENSATE DRAIN TRAP LOCATION
NOTE: ALL DIMENSIONS IN INCH [MM]
[22.2]
7/8
7/8
[22.2] POWER CONN
AIR FLOW
SEE NOTE #3
NOTES: 1. Doors may vary by model. 2. Minimum return-air openings at furnace, based on metal duct. If ex duct is used, see ex duct manufacturer's recommendations for equivalent diameters. a. For 800 CFM-16-in. (406 mm) round or 14 1/2 x 12-in. (368 x 305 mm) rectangle. b. For 1200 CFM-20-in. (508 mm) round or 14 1/2 x 19 1/2-in. (368 x 495 mm) rectangle. c. For 1600 CFM-22-in. (559 mm) round or 14 1/2 x 22 1/16-in. (368 x 560mm) rectangle. d. Return air above 1800 CFM at 0.5 in. w.c. ESP on 24.5" casing, requires one of the following congurations: 2 sides, 1 side and a bottom or bottom only. See Air Delivery table in this document for specic use to allow for sucient airow to the furnace. 3. Vent and Combustion air pipes through blower compartment must use accessory “Vent Kit - Through the Cabinet”. See accessory list for current part number.
TOP VIEW
A12267
59SC5
FURNACE SIZE
A B C D SHIP WT.
LB (KG)
CABINET WIDTH OUTLET WIDTH BOTTOM INLET WIDTH AIR INTAKE
040--- 10 14--- 3/16 (361) 12--- 1/2 (319) 12--- 9/16 (322) 7--- 1/8 (181) 123.0 (55.4)
060--- 10 127.0 (57.2)
040--- 12
17--- 1/2 (445) 15--- 7/8 (403) 16 (406) 8--- 3/4 (222)
134.0 (60.9)
060--- 14 144.0 (65.4)
080--- 16 154.0 (70.0)
080--- 20
21 (533) 19---3/8 (492) 19--- 1/2 (495) 10--- 1/2 (267)
161.5 (73.4)
100--- 14 168.5 (76.6)
100--- 20 168.5 (76.6)
120--- 20 24--- 1/2 (622) 22--- 7/8 (581) 23 (584) 12--- 1/4 (311) 186.0 (84.5)
140--- 20 190.0 (86.4)
59SC5A

15
GUIDE SPECIFICATIONS
General
System Description
Furnish a ______________________ 4--way multipoise gas--fired
condensing furnace for use with natural gas or propane (factory--
authorized conversion kit required for propane).
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 third 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 StarRand Blue FlameRlabels. 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 AHRI 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.
Equipment
Blower Wheel and PSC Blower Motor
Galvanized blower wheel shall be centrifugal type, statically and
dynamically balanced. Blower motor of PSC type shall be
permanently lubricated with sleeve bearings, of _______hp, and
have multiple speeds from 500--1150 RPM operating only when
115--VAC motor inputs are provided. Blower motor shall be direct
drive and soft mounted to the blower housing to reduce vibration
transmission.
Filters
Furnace shall have reusable--type filters. Filter shall be ______ in.
(mm) X ________ in. (mm). An accessory highly efficient Media
Filter is available as an option. _____________ Media Filter.
Casing
Casing shall be of .030 in. thickness minimum, pre--painted
galvanized steel.
Draft Inducer Motor
Draft inducer motor shall be single--speed PSC design.
Primary Heat Exchangers
Primary heat exchangers shall be 3--Pass corrosion--resistant
aluminized steel of fold--and--crimp sectional design and applied
operating under negative pressure.
Secondary Heat Exchangers
Secondary heat exchangers shall be of a stainless steel
flow--through of fin--and--tube design and applied operating under
negative pressure.
Controls
Controls shall include a micro--processor--based integrated
electronic control board with at least 16 service troubleshooting
codes displayed via diagnostic flashing LED light on the control, a
self--test feature that checks all major functions of the furnace, and
a replaceable automotive--type circuit protection fuse. Multiple
operational settings available including blower speeds for heating
and cooling. Continuous fan speed is the same as the selected
heating speed.
Operating Characteristics
Heating capacity shall be _________________ Btuh input;
______________ Btuh output capacity.
Fuel Gas Efficiency shall be __________AFUE.
Air delivery shall be ________________ cfm minimum at 0.50 in.
W.C. external static pressure.
Dimensions shall be: depth_________in. (mm); width
__________in. (mm); height___________in. (mm) (casing only).
Height shall be_________in. (mm) with A/C coil and
_________________in. (mm) 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
of HACR--type designated circuit breaker shall be _________
amps.
Special Features
Refer to section of the product data identifying accessories and
descriptions for specific features and available enhancements.
59SC5A

16
Copyright 2012 Carrier Corp. S7310 W. Morris St. SIndianapolis, IN 46231 Edition Date: 10/12
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Catalog No: 59SC5A---03PD
Replaces: 59SC5A--- 02PD
59SC5A