Carrier 58CTA Operation manual

58CTA/CTX
P E R F O R M A N C E ™ 8 0 T W O --- S T A G E 4 --- W AY
MULTIPOISE INDUCED---COMBUSTION GAS FURNACE
Input Capacities: 45,000 thru 155,000 Btuh
Series 140
Product Data
Performance
A10249
THE PERFORMANCE 80 GAS FURNACE
The 58CTA/CTX Two-Stage, 4-way Multipoise Gas Furnaces
offer unmatched comfort in their class with ComfortHeatt
technology in an 80% AFUE gas furnace. You get the benefits of a
ComfortHeatttechnology furnace: reduced drafts, reduced sound
levels, longer cycles, less temperature swings between cycles, and
less temperature differences between rooms. Its exclusive,
intelligent microprocessor control adapts to the heating needs of
the home by automatically adjusting high and low heat times to
maximize comfort. The 58CTA/CTX furnaces are approved for use
with natural or propane gas, and the 58CTX is approved for use in
Low NOx Air Quality Management Districts.
STANDARD FEATURES
SComfortHeattTechnology Intelligent microprocessor
control
STwo--stage heating with single-stage thermostat with
patented Adaptive Control Technology
SVery low operating sound through low--stage operation and
QuieTechtsystem
SSmartEvapt--Humidity control when using a
Thermidistattcontrol
SComfort Fantadjustable constant fan speed from the
thermostat
SMicroprocessor based control center
Enhanced diagnostics with LED and reflective sight glass
Stores fault codes during power outages
Adjustable heating air temperature rise
Adjustable cooling airflow
S4-way Multipoise furnace, 13 vent applications
SCompact design -- only 33-1/3 in. (847 mm) tall
SPower HeattIgniter
SDraft Safeguard switch to ensure proper furnace venting
SInsulated blower compartment
SInner door for tighter sealing
SCertified to leak 2 percent or less of its nominal air
conditioning CFM delivered when pressurized to 1--In.
Water Gauge with all present air inlets, air outlets, and
condensate drain port(s) sealed.
SHYBRID HEATrDual Fuel System compatible
SAll models are Chimney Friendly when used with accessory
vent kit
STwinning in Upflow, Downflow and Horizontal
SResidential installations eligible for consumer financing
through the Retail Credit Program

2
MODEL NUMBER NOMENCLATURE
58CTA 045 100 08
58CTA Two-Stage 4-Way Multipoise Nominal Cooling Size
58CTX Low NOx version (Airflow at .5 e.s.p.)
(400 CFM per 12,000 Btuh)
08---800 CFf7
12---1200 CFM
100 14---1400 CFM
110 16---1600 CFM
Input Capacity 120 20---2000 CFM
045---44,000 Btuh 110---110,000 Btuh 130 22---2200 CFM
070---66,000 Btuh 135---132,000 Btuh 140
090---88,000 Btuh 155---154,000 Btuh Series Number
FURNACE COMPONENTS
A02169
HEAT EXCHANGER
A02238
CONTROL BOARD
A02170
INDUCER BLOWER
58CTA/CTX

3
FURNACE COMPONENTS
INDUCER MOTOR
ASSEMBLY
PRESSURE
SWITCHES
FLUE COLLECTOR
BOX
GAS VALVE
HOT SURFACE
IGNITOR
BLOWER DOOR
SAFETY SWITCH
FURNACE CONTROL
BOARD
VENT
ELBOW
MAIN LIMIT SWITCH
(BEHIND GAS VALVE)
BLOCKED VENT
SWITCH
FLAME
SENSOR
GAS MANIFOLD
GAS BURNER
BLOWER AND
MOTOR
MANUAL RESET
LIMIT SWITCHES
CAPACITOR/
POWER CHOKE
A10313
NOTE: The 58CTA/CTX Furnaces are factory shipped for use with natural gas. These furnaces can be field-converted for propane gas with
a factory-authorized and listed accessory conversion kit.
58CTA/CTX

4
CARRIER ACCESSORIES
CONTROLS:
THERMOSTATS
AND ZONING
Available in programmable and
non-programmable models, Carrier
thermostats maintain a constant
temperature level in the home.
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.
A97432
MECHANICAL
OR 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.
Electronic air cleaner is shown.
C04008 A01484
MODEL HUMCCLFP
HUMIDIFIER
By adding moisture to winter-dry
air, a Carrier humidifier can often
improve comfort and keep
furniture, rugs, and draperies in
better condition. Moisturizing
household air also helps to retain
normal body heat and provides
comfort at lower temperatures.
Accessories
ELECTRONIC AIR CLEANER (EAC) Model EACB
MECHANICAL AIR CLEANER Models EZXCAB, FILCAB
HUMIDIFIER Model HUM
HEAT RECOVERY VENTILATOR Model HRV
ENERGY RECOVERY VENTILATOR Model ERV
T H E R M O S T A T ---
NON---PROGRAMMABLE
Fo r u s e w i t h 1 --- s p e e d A i r C o n d i t i o n e r --- d e g . F / C , A u t o C h a n g e o v e r --- T P --- NA C , T C --- N A C
Fo r u s e w i t h 1 --- s p e e d H e a t P u m p --- d e g. F / C , A u t o C h a n g e o v e r --- T P --- NH P, T C --- N HP *
Fo r u s e w i t h 2 --- s p e e d A i r C o n d i t i o n e r --- d e g . F / C , A u t o C h a n g e o v e r --- T P --- NR H *
For use with multi---use / stage configurations --- deg. F/C, Auto Changeover/Temperature and Humidity control
--- T P --- P R H †
T H E R M O S T A T ---
PROGRAMMABLE
Fo r u s e w i t h 1 --- s p e e d A i r C o n d i t i o n e r --- d e g . F / C , A u t o C h a n g e o v e r, 7 --- D a y P r o g r a m m a b l e --- T P --- P A C
Fo r u s e w i t h 1 --- s p e e d H e a t P u m p --- d e g. F / C , A u t o C h a n g e o v e r, 7 --- D a y P r o g r a m m a b l e --- T P --- P H P *
Fo r u s e w i t h 2 --- s p e e d A i r c o n d i t i o n e r --- d e g . F / C , A u t o C h a n g e o v e r, 7 --- D a y P r o g r a m m a b l e --- T P --- P R H *
F o r u s e w i t h 1 --- s p e e d A i r C o n d i t i o n e r --- d e g . F / C , 5 --- 2 D a y P r o g r a m m a b l e --- T P --- P A C
Fo r u s e w i t h m u l t i --- s t a g e a p p li c a t i o n s --- d e g . F /C , A u t o C h a n g e o v e r, 7 --- D a y P r o g r a m m a b le --- T C --- P R H †
Fo r m u l t i --- u s e / s t a g e c o n f i g u ra t i o n s --- d e g . F / C , A u t o C h a n g e o v e r, 7 --- D a y P r o g ra m m a b l e / Te m p e r a t u r e a n d
H u m i d i t y C o n t r o l --- T P --- P R H †
ZONING CONTROL
Comfort™ Series 3-Zone Kit --- ZONECC3ZAC01, ZONECC3ZHP01
2 Performance™ Series ComfortZone™ II Zoning/Temperature and Humidity Control --- ZONECC2KIT01---B
4 Performance™ Series ComfortZone™ II Zoning/Temperature and Humidity Control --- ZONECC4KIT01---B
8 Performance™ Series ComfortZone™ II Zoning/Temperature and Humidity Control --- ZONECC8KIT01---B
* Model HP and 2S thermostat must be field converted to air conditioner operation.
† Thermidistat Control can be configured for multiple use and staging, it must be configured for each specific application.
58CTA/CTX

5
CARRIER ACCESSORIES
58CTA/CTX DESCRIPTION PART NO. 045-
08
045-
12
070-
08
070-
12
070-
16
090-
14
090-
16
090-
20
110-
12
110-
16
110-
22
135-
16
135-
22
155-
20
Media Filter Cabinet
FILCABCC0016 XXXXXX X
FILCABCC0020 XX XXX
FILCABCC0024 X X
Cartridge Media Filter
FILCCCAR0016 XXXXXX X
FILCCCAR0020 XX XXX
FILCCCAR0024 X X
EZ Flex Media Filter with End Caps
EXPXXUNV0016 XXXXXX X
EXPXXUNV0020 XX XXX
EXPXXUNV0024 X X
Replacement EZ Flex Filter Media
EXPXXFIL0016 XXXXXX X
EXPXXFIL0020 XX XXX
EXPXXFIL0024 X X
External Bottom Return Filter Rack
KGAFR0401B14 X X X X
KGAFR0501B17 X X X
KGAFR0601B21 XX XXX
KGAFR0701B24 X X
External Side Return Filter Rack KGAFR0801SRE XXXXXXXXXXXXXX
Unframed Filter 3/4-in. (19 mm)
KGAWF1301UFR† XXXXXX X
KGAWF1401UFR XX XXX
KGAWF1501UFR X X
KGAWF1306UFR† XXXXXX X
KGAWF1406UFR XX XXX
KGAWF1506UFR X X
Flue Extension KGAFE0112UPH XXXXXXXXXXXXXX
Twinning Kit KGATW0601HSI XXXXXXXXXXXXXX
Combustible Floor Base KGASB0201ALL XXXXXXXXXXXXXX
Downflow Vent Guard KGBVG0101DFG XXXXXXXXXXXXXX
Vent Extension Kit KGAVE0101DNH XXXXXXXXXXXXXX
Chimney Adapter Kit
KGACA02014FC XXXXXXXXXXX
KGACA02015FC X X X
Natural-to-Propane Conversion Kit* KGANP4601ALL XXXXXXXXXXXXXX
Propane-to-Natural Conversion Kit KGAPN3901ALL XXXXXXXXXXXXXX
Label Kit KGALB0101KIT XXXXXXXXXXXXXX
Gas Orifice Kit (Qty 50)
KGAHA0150N42
See Installation Instructions for model, altitude, and heat value usages
KGAHA0250N43
(factory supplied)
KGAHA0350N44
KGAHA0450N45
KGAHA0550N46
KGAHA1550N47
KGAHA1650N48
KGAHA0650P54
KGAHA0750P55
KGAHA0850P56
KGAHA5750125
KGAHA5750130
* Factory-authorized and field installed. Fuel conversion kits are CSA (formerly AGA/CGA) recognized.
† Suitable for Side Return Filter Rack
X = Accessory
S=Standard
58CTA/CTX

6
PHYSICAL DATA
UNIT SIZE
045 070 090
08 12 08 12 16 14 16 20
OUTPUT CAPACITY
BTUH*
(Nonweatherized
ICS) †
All 58CTA; 58CTX
Upflow
High 35,000 36,000 54,000 54,000 53,000 71,000 71,000 71,000
Low 23,000 23,000 36,000 36,000 35,000 47,000 47,000 47,000
All 58CTX Downflow/
Horizontal
High 34,000 34,000 51,000 51,000 51,000 68,000 68,000 68,000
Low 23,000 23,000 36,000 36,000 35,000 47,000 47,000 47,000
INPUT BTUH*
All 58CTA; 58CTX
Upflow
High 44,000 44,000 66,000 66,000 66,000 88,000 88,000 88,000
Low 29,000 29,000 43,500 43,500 43,500 58,000 58,000 58,000
All 58CTX Downflow/
Horizontal
HIgh 42,000 42,000 63,000 63,000 63,000 84,000 84,000 84,000
Low 29,000 29,000 43,500 43,500 43,500 58,000 58,000 58,000
AFUE † * Nonweatherized ICS 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0
SHIPPING WEIGHT --- LB (KG) 104 (47) 107 (49) 111 (50) 115 (52) 126 (57) 127 (58) 140 (64) 146 (66)
CERTIFIED TEMP RISE RANGE --- ° F (° C)
High 30---60
( 1 7 --- 3 3 )
20---50
( 1 1 --- 2 8 )
40---70
( 2 2 --- 3 9 )
30---60
( 1 7 --- 3 3 )
25---55
( 1 4 --- 3 0 )
40---70
( 2 2 --- 3 9 )
30---60
( 1 7 --- 3 3 )
25---55
( 1 4 --- 3 0 )
Low 20---50
( 1 1 --- 2 8 )
15---45
( 8 --- 2 5 )
30---60
( 1 7 --- 3 3 )
30---60
( 1 7 --- 3 3 )
15---45
( 8 --- 2 5 )
25---55
( 1 4 --- 3 0 )
25---55
( 1 4 --- 3 0 )
15---45
( 8 --- 2 5 )
CERTIFIED EXT
STATIC PRESSURE
Heating 0.10 0.10 0.12 0.12 0.12 0.15 0.15 0.15
Cooling 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50
AIRFLOW CFM‡
Heating High/Low 820/725 1030/860 790/685 885/695 1570/1045 1375/1195 1265/1030 1580/1325
Cooling 895 1175 955 1240 1605 1385 1755 2005
LIMIT CONTROL SPST
HEATING BLOWER CONTROL Solid-State Time Operation
BURNERS (Monoport) 2 2 3 3 3 4 4 4
GAS CONNECTION SIZE 1 / 2 --- i n . N P T
GAS VALVE (Redundant) Manufacturer White-Rodgers
Minimum Inlet Pressure (In. W.C.) 4.5 (Natural Gas)
Maximum Inlet Pressure (In. W.C.) 13.6 (Natural Gas)
IGNITION DEVICE Hot Surface
* Gas input ratings are certified for elevations to 2000 ft. (610 M). For elevations above 2000 ft. (610 M), reduce ratings 4 percent for each 1000 ft. (305M)
above sea level. Refer to National Fuel Gas Code NFPA 54/ANSI Z223.1---2009 Table F.4 or furnace Installation Instructions.
† Capacity in accordance with U.S. Government DOE test procedures.
‡ Airflow shown is for bottom only return ---air supply. For air delivery above 1800 CFM, see Air Delivery Table for other options. A filter is required for each
return-air supply.
ICS — Isolated Combustion System
BLOWER PERFORMANCE DATA
UNIT SIZE
045 070 090
08 12 08 12 16 14 16 20
DIRECT-DRIVE MOTOR Hp (PSC) 1/5 1/3 1/5 1/3 1/2 1/3 1/2 3/4
MOTOR FULL LOAD AMPS 2.8 5.1 2.8 5.1 7.4 5.2 7.4 11.0
RPM (Nominal) – Speeds 1075-4 1075-5 1075-4 1075-5 1075-5 1075-4 1075-5 1075-5
BLOWER WHEEL DIAMETER × WIDTHS ---
In. (mm)
10 x 6
(254 x
152)
10 x 6
(254 x
152)
10 x 6
(254 x
152)
10 x 6
(254 x
152)
11 x 8
(279 x
203)
10 x 8
(254 x
203)
10 x 10
(254 x
254)
11 x 11
(279 x
279)
PSC ---Permanent Split Capacitor
58CTA/CTX

7
PHYSICAL DATA
UNIT SIZE
110 135 155
12 16 22 16 22 20
OUTPUT CAPACITY
BTUH*
(Nonweatherized
ICS) †
All 58CTA; 58CTX
Upflow
High 89,000 89,000 89,000 107,000 107,000 125,000
Low 59,000 59,000 59,000 70,000 70,000 82,000
All 58CTX Downflow/
Horizontal
High 85,000 85,000 85,000 102,000 102,000 119,000
Low 59,000 59,000 59,000 70,000 70,000 82,000
INPUT BTUH*
All 58CTA; 58CTX
Upflow
High 110,000 110,000 110,000 132,000 132,000 154,000
Low 72,500 72,500 72,500 87,000 87,000 101,500
All 58CTX Downflow/
Horizontal
HIgh 105,000 105,000 105,000 126,000 126,000 147,000
Low 72,500 72,500 72,500 87,000 87,000 101,500
AFUE † * Nonweatherized ICS 80.0 80.0 80.0 80.0 80.0 80.0
SHIPPING WEIGHT --- LB. (KG) 135 (61) 146 (66) 152 (69) 149 (68) 163 (74) 170 (77)
CERTIFIED TEMP RISE RANGE --- ° F (° C)
High 50---80
( 1 7 --- 3 3 )
40---70
( 1 7 --- 3 3 )
30---60
( 1 7 --- 3 3 )
50---80
( 1 7 --- 3 3 )
40---70
( 1 7 --- 3 3 )
45---75
( 1 7 --- 3 3 )
Low 30---60
( 1 7 --- 3 3 )
25---55
( 1 4 --- 3 0 )
20---50
( 1 1 --- 2 8 )
30---60
( 1 7 --- 3 3 )
25---55
( 1 4 --- 3 0 )
30---60
( 1 7 --- 3 3 )
CERTIFIED EXT
STATIC PRESSURE
Heating 0.20 0.20 0.20 0.20 0.20 0.20
Cooling 0.50 0.50 0.80 0.50 0.50 0.50
AIRFLOW CFM‡
Heating High/Low 1335/1180 1290/1045 1555/1295 1525/1320 1865/1640 1790/1565
Cooling 1355 1695 2200 1710 2110 2230
LIMIT CONTROL SPST
HEATING BLOWER CONTROL Solid-State Time Operation
BURNERS (Monoport) 555667
GAS CONNECTION SIZE 1 / 2 --- i n . N P T
GAS VALVE (Redundant) Manufacturer White-Rodgers
Minimum Inlet Pressure (In. W.C.) 4.5 (Natural Gas)
Maximum Inlet Pressure (In. W.C.) 13.6 (Natural Gas)
IGNITION DEVICE Hot Surface
* Gas input ratings are certified for elevations to 2000 ft. (610 M). For elevations above 2000 ft. (610 M), reduce ratings 4 percent for each 1000 ft. (305M)
above sea level. Refer to National Fuel Gas Code NFPA 54/ANSI Z223.1---2009 Table F.4 or furnace Installation Instructions.
† Capacity in accordance with U.S. Government DOE test procedures.
‡ Airflow shown is for bottom only return ---air supply. For air delivery above 1800 CFM, see Air Delivery Table for other options. A filter is required for each
return-air supply.
ICS — Isolated Combustion System
BLOWER PERFORMANCE DATA
UNIT SIZE
110 135 155
12 16 22 16 22 20
DIRECT-DRIVE MOTOR Hp (PSC) 1/3 1/2 3/4 1/2 3/4 3/4
MOTOR FULL LOAD AMPS 5.2 7.4 11.0 7.9 11.1 11.1
RPM (Nominal) – Speeds 1075-4 1075-5 1075-5 1075-4 1075-4 1075-5
BLOWER WHEEL DIAMETER × WIDTHS ---
In. (mm)
10 x 8
(254 X 203)
10 x 10
(254 X 254)
11 x 11
(279 x 279)
10 x 10
(254 x 254)
11 x 11
(279 x 279)
11 x 11
(279 x279)
PSC ---Permanent Split Capacitor
58CTA/CTX

8
A02058
SEE NOTES: 1,2,4,7,8,9
UPFLOW
SEE NOTES: 1,2,3,4,7,8,9
UPFLOW
SEE NOTES: 1,2,4,5,7,8,9
DOWNFLOW
A02059 A02061
SEE NOTES:1,2,3,4,5,7,8,9
DOWNFLOW
SEE NOTES: 1,2,3,4,5,7,8,9
DOWNFLOW
SEE NOTES: 1,2,4,5,6,7,8,9
DOWNFLOW
A02060 A02063 A02062
Venting Notes
1. For common vent, vent connector sizing and vent material: United States, latest edition of the National Fuel Gas
Code (NFGC), ANSI Z223.1/NFPA 54.
2. Immediately increase to 5-in. (127 mm) vent connector outside furnace casing when 5-in. (127 mm) vent connector
required, refer to Note 1.
3. Side outlet vent for upflow and downflow installations must use Type B vent immediately after exiting the furnace,
except when Downflow Vent Guard is used in downflow position.
4. Type B vent where required, refer to Note 1.
5. 4---in. (102 mm) single wall vent must be used inside furnace casing and the Downflow Vent Guard Kit.
6. Accessory Downflow Vent Guard Kit, required in downflow installations with bottom vent configuration.
7. Chimney Adapter Kit required for exterior masonry chimney applications. Refer to Chimney Adapter Kits for sizing
and complete application details.
8. Secure vent connector to furnace elbow with (2) corrosion-resistant sheet metal screws, space approximately 180°
apart.
9. Secure all other single wall vent connector joints with (3) corrosion-resistant screws spaced approximately 120°
apart. Secure Type B vent connectors per vent connector manufacturer’s recommendations.
58CTA/CTX

9
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL RIGHT
A02068
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL RIGHT
A02070
SEE NOTES: 1,2,4,7,8,9
HORIZONTAL RIGHT A02069
SEE NOTES: 1,2,4,7,8,9
HORIZONTAL LEFT A02064
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL LEFT A02065
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL LEFT
A02066
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL LEFT
A02067
58CTA/CTX

10
AIR DELIVERY—CFM (With Filter)*
UNIT SIZE
RETURN-AIR
SUPPLY SPEED
EXTERNAL STATIC PRESSURE (In. W.C.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
045-08
Bottom
or
Side(s)
High
Med-High
Med-Low
Low
1120
930
820
725
1075
890
785
690
1020
850
750
655
960
805
700
605
895
750
650
555
815
680
585
495
720
600
505
405
605
500
400
305
455
345
235
—
340
195
—
—
045-12
Bottom
or
Side(s)
High
Med-High
Medium
Med-Low
Low
1465
1295
1150
1030
860
1400
1260
1120
1008
835
1325
1210
1085
980
810
1250
1155
1040
945
780
1175
1090
985
895
745
1085
1015
920
835
700
980
930
835
765
635
860
830
740
685
555
725
700
620
—
—
—
—
—
—
—
070-08
Bottom
or
Side(s)
High
Med-High
Med-Low
Low
1140
915
795
690
1105
885
770
665
1055
855
740
630
1010
825
700
590
955
785
655
550
885
725
600
475
815
655
510
415
715
530
420
340
545
420
325
245
390
280
—
—
070-12
Bottom
or
Side(s)
High
Med-High
Medium
Med-Low
Low
1440
1180
1015
885
695
1400
1165
1020
885
700
1355
1150
1010
880
700
1300
1125
990
865
690
1240
1085
965
845
670
1170
1030
925
815
640
1090
970
875
770
600
1000
890
800
700
540
890
785
700
605
460
745
645
560
475
345
070-16
Bottom
or
Side(s)
High
Med-High
Medium
Med-Low
Low
1840
1610
1460
1260
1065
1790
1575
1430
1240
1040
1730
1535
1400
1215
1015
1670
1485
1360
1180
985
1605
1435
1315
1145
955
1530
1370
1260
1100
915
1450
1305
1205
1040
875
1370
1230
1130
985
825
1275
1145
1055
915
765
1170
1055
965
835
695
090-14
Bottom
or
Side(s)
High
Med-High
Med-Low
Low
1650
1515
1385
1205
1600
1485
1360
1180
1535
1440
1320
1160
1465
1380
1260
1120
1385
1300
1195
1065
1285
1220
1120
1005
1175
1115
1025
925
1055
990
915
810
895
830
710
630
645
600
565
510
090-16
Bottom
or
Side(s)
High
Med-High
Medium
Med-Low
Low
2060
1710
1470
1260
1030
2000
1695
1475
1265
1025
1930
1665
1450
1245
1020
1835
1585
1390
1225
990
1755
1480
1335
1165
940
1620
1390
1230
1090
890
1490
1245
1120
995
810
1315
1110
1005
880
720
1115
955
855
750
615
910
775
690
600
500
090-20
Bottom
Only
High
Med-High
Medium
Med-Low
Low
2380
2185
1905
1595
1340
2295
2115
1865
1565
1310
2205
2045
1815
1530
1280
2105
1960
1740
1485
1225
2005
1875
1670
1430
1170
1900
1770
1590
1355
1120
1775
1655
1490
1275
1040
1650
1535
1390
1160
955
1510
1400
1245
1055
850
1335
1240
1110
920
750
Both Sides
or 1
Side & Bottom
High
Med-High
Medium
Med-Low
Low
2485
2175
1845
1540
1280
2415
2130
1815
1515
1250
2330
2070
1770
1475
1220
2230
2000
1720
1435
1190
2135
1930
1655
1385
1155
2030
1840
1580
1335
1105
1920
1740
1500
1270
1035
1790
1620
1395
1175
945
1645
1495
1270
1045
845
1485
1345
1090
915
745
1SideOnly
High
Med-High
Medium
Med-Low
Low
2420
2160
1850
1530
1290
2345
2110
1815
1490
1250
2265
2045
1765
1455
1220
2165
1960
1710
1420
1190
2070
1885
1635
1375
1155
1960
1790
1560
1320
1110
1850
1695
1480
1250
1040
17720
1570
1380
1160
950
1570
1445
1250
1055
835
1420
1305
1110
905
740
* A filter is required for each return ---air supply. Airflow performance includes 3/4 ---in. (19 mm) washable filter media such as contained in factory --- a u t h o r iz ed
accessory filter rack. To determine airflow performance without this filter, assume an additional .1 available external static pressure.
— Indicates unstable operating conditions.
58CTA/CTX