Literature Library KG7T Two Stage Fixed Speed High Efficiency Upflow Horizontal and Downflow Gas Furnaces Owner’s Manual

: June 15, 2024
: Literature Library

Table of Contents

FEATURES and BENEFITS
GAS FURNACE COMPONENTS
DIMENSIONS
KG7TK 80+ High Efficiency Downflow SeriesBLOWER PERFORMANCE – KG7TA/TK
****
Model Number
Heating Input (Btuh)
Motor Switch Setting
External Static Pressure (in.w.c.)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
1/5
2/6
3/7
4/8
CFM
Rise
CFM
Rise
CFM
Rise
CFM
Rise
CFM
Rise
CFM
Rise
CFM
Rise
CFM
Rise
****
****
****
****
****
****
****
****
TA/TK-120(C)-C1
****
****
****
****
****
****
****
****
120000
0
0
0
0
1125
–
1040
1
0
0
0
1205
–
1120
–
1040
–
0
1
0
0
1305
–
1225
–
1150
–
1070
–
1
1
0
0
1430
62
1350
–
1270
–
1190
–
1110
–
1030
–
0
0
1
0
1525
58
1450
61
1375
65
1300
–
1225
–
1150
–
1075
–
1000
–
1
0
1
0
1620
55
1540
58
1465
61
1390
64
1315
–
1240
–
1165
–
1090
–
0
1
1
0
1695
52
1620
55
1545
58
1465
61
1390
64
1315
–
1235
–
1160
–
1
1
1
0
1770
50
1700
52
1630
55
1555
57
1485
60
1410
63
1340
66
1265
–
0
0
0
1
1875
47
1805
49
1730
51
1655
54
1580
56
1510
59
1435
62
1340
66
1
0
0
1
1905
47
1840
48
1775
50
1710
52
1640
54
1575
56
1510
59
1445
62
0
1
0
1
1980
45
1910
47
1845
48
1780
50
1715
52
1650
54
1580
56
1515
59
1
1
0
1
2025
44
1960
45
1895
47
1830
49
1765
50
1700
52
1635
54
1570
57
0
0
1
1
2085
43
2025
44
1960
45
1900
47
1840
48
1775
50
1715
52
1655
54
1
0
1
1
2135
42
2070
43
2010
44
1945
46
1880
47
1815
49
1750
51
1685
53
0
1
1
1
2200
40
2145
41
2090
43
2035
44
1980
45
1925
46
1870
48
1820
49
1
1
1
1
2280
39
2225
40
2170
41
2115
42
2065
43
2010
44
1955
45
1900
47
****
****
****
****
****
****
****
****
TA/TK-140(C)-D1
****
****
****
****
****
****
****
****
140000
0
0
0
0
1395
–
1350
–
1305
–
1260
–
1210
–
1165
–
1
0
0
0
1465
–
1420
–
1375
–
1330
–
1290
–
1245
–
1200
–
0
1
0
0
1555
67
1510
69
1470
–
1425
–
1380
–
1340
–
1295
–
1250
–
1
1
0
0
1625
64
1585
65
1540
67
1500
69
1460
–
1415
–
1375
–
1335
–
0
0
1
0
1690
61
1650
63
1610
64
1570
66
1530
68
1485
70
1445
–
1405
–
1
0
1
0
1760
59
1715
60
1670
62
1625
64
1575
66
1530
68
1485
70
1440
–
0
1
1
0
1835
57
1790
58
1745
59
1695
61
1650
63
1605
65
1555
67
1510
69
1
1
1
0
1885
55
1840
56
1790
58
1745
59
1700
61
1655
63
1610
64
1565
66
0
0
0
1
1945
53
1900
55
1850
56
1805
57
1760
59
1710
61
1665
62
1620
64
1
0
0
1
1950
53
1905
54
1860
56
1820
57
1775
58
1735
60
1690
61
1650
63
0
1
0
1
2075
50
2030
51
1990
52
1945
53
1900
55
1855
56
1810
57
1770
59
1
1
0
1
2125
49
2085
50
2040
51
2000
52
1955
53
1910
54
1870
55
1825
57
0
0
1
1
2170
48
2130
49
2090
50
2045
51
2005
52
1965
53
1925
54
1880
55
1
0
1
1
2215
47
2180
48
2140
48
2105
49
2070
50
2035
51
2000
52
1965
53
0
1
1
1
2225
47
2165
48
2100
49
2040
51
1
1
1
1
2170
48
2120
49
2065
50
MODEL IDENTIFICATION CODE
SPECIFICATIONS
ACCESSORIES
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

**Literature Library KG7T Two Stage Fixed Speed High Efficiency Upflow Horizontal and Downflow Gas Furnaces Owner’s Manual

**

FEATURES and BENEFITS

100% fired and tested: All units and each component are tested on the manufacturing line. • Best packaging in the industry: Unique corner post design assures product will arrive to the homeowner dent free.
Low Boy Height: Easy to apply in low ceiling applications, works well with taller high SEER coils, easier to handle and install.
Tubular primary heat exchanger: Heavy gauge aluminized steel heat exchanger assures a long life.
30 second blower delay at start-up: Assures a warm duct temperature at furnace start-up. Adjustable blower off settings (60, 90, 120 and 180 seconds).
30 second post purge :Increases life of heat exchanger.
Hot surface ignitor : Innovative application of an appliance type ignitor with a 20 year history of reliability. Utilizes proven Smartlite® technology.
Color coded wire harness: Designed to fit the components, all with quick-connect fittings for ease of service and replacement.
High static blowers: All models equipped with high static blowers.
90 second cooling cycle blower-off delay (TDR): increases cooling performance when matched with a Nortek Global HVAC coil.
Flexible category I venting system: May be vented with dedicated venting system or common vented with other category one appliances.
Variable speed blower kit: Upgradable to full variable speed with kit.
Convertible : Simple burner orifice and regulator spring
change for ease of convertibility.
Diagnostic lights for easy troubleshooting without counting lashes: Dedicated light for flame signal strength and 2 lights in combination to indicate all other fault codes with easy to recognize states without counting flashes.
Integrated control board: Incorporates connections for electronic air cleaner and humidifier.
Two piece door design: Enhances furnace appearance and uses captured screws to prevent loosing door screws.
Energy Efficient Brushless DC (ECM) Motor: Gives up to 1 SEER point efficiency gain in cooling.
Furnace Air Leakage: These furnaces comply with Energy Star cabinet air leakage requirement of less than or equal to 2%. Keep the conditioned air flowing to where it’s needed.

GAS FURNACE COMPONENTS

Upflow/Horizontal Gas Furnace
Downflow Gas Furnace

DIMENSIONS

GAS FURNACE COMPONENTSU pflow/Horizontal Gas Furnace Downflow Gas Furnace DIMENSIONS

*TA Model #’s| Dimension “A”| Dimension “B”| Dimension “C”| Dimension “D”
---|---|---|---|---
060-23A1| 14 1/4| 10 3/4| 12 5/8| 12 7/8
080-24B1| 17 1/2| 11 3/4| 15 7/8| 16 1/8
100-24B1
100-35C1| 21| 14| 19 3/8| 19 5/8
120-35C1
140-45D1| 24 1/2| 15 1/4| 22 7/8| 23 1/8

KG7TA 80+ High Efficiency Upflow/Horizontal Series

*TK Model #’s| Dimension “A”| Dimension “B”| Dimension “C”| Dimension “D”
---|---|---|---|---
060-23A1| 14 1/4| 10 3/4| 12 5/8| 12 7/8
080-24B1| 17 1/2| 11 3/4| 15 7/8| 16 1/8
100-24B1
100-35C1| 21| 14| 19 3/8| 19 5/8
120-35C1
140-45D1| 24 1/2| 15 1/4| 22 7/8| 23 1/8

KG7TK 80+ High Efficiency Downflow SeriesBLOWER PERFORMANCE – KG7TA/TK

G7TA/TK – 80% AFUE, Two Stage Gas Furnace

**Model Number| ****Heating Input (Btuh)| Motor Switch Setting| External Static Pressure (in.w.c.)
0.1| 0.2| 0.3| 0.4| 0.5| 0.6| 0.7| 0.8
1/5| 2/6| 3/7| 4/8| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise
***TA/TK-060(C)-*A1| **60000| 0| 0| 0| 0| | | | | | | | | | | | | | | |
1| 0| 0| 0| | | | | | | | | | | | | | | |
0| 1| 0| 0| 600| –| 555| –| 510| | | | | | | | | | |
1| 1| 0| 0| 705| –| 670| –| 635| –| 600| –| | | | | | | |
0| 0| 1| 0| 775| 57| 740| 60| 705| –| 665| –| | | | | | | |
1| 0| 1| 0| 900| 49| 870| 51| 835| 53| 800| 56| 765| 58| 730| 61| 695| 64| 660| 67
0| 1| 1| 0| 950| 47| 920| 48| 890| 50| 855| 52| 825| 54| 795| 56| 765| 58| 730| 61
1| 1| 1| 0| 1000| 44| 970| 46| 940| 47| 910| 49| 880| 51| 850| 52| 820| 54| 790| 56
0| 0| 0| 1| 1075| 41| 1045| 43| 1015| 44| 985| 45| 960| 46| 925| 48| 900| 49| 870| 51
1| 0| 0| 1| 1110| 40| 1080| 41| 1055| 42| 1025| 43| 1000| 44| 975| 46| 945| 47| 920| 48
0| 1| 0| 1| 1170| 38| 1140| 39| 1115| 40| 1090| 41| 1060| 42| 1035| 43| 1010| 44| 985| 45
1| 1| 0| 1| 1210| 37| 1185| 38| 1160| 38| 1130| 39| 1105| 40| 1080| 41| 1055| 42| 1025| 43
0| 0| 1| 1| 1520| 29| 1225| 36| 1200| 37| 1175| 38| 1150| 39| 1120| 40| 1095| 41| 1070| 42
1| 0| 1| 1| 1305| 34| 1280| 35| 1255| 35| 1230| 36| 1205| 37| 1180| 38| 1155| 38| 1130| 39
0| 1| 1| 1| 1350| 33| 1230| 36| 1305| 34| 1285| 35| 1260| 35| 1240| 36| 1215| 37| 1195| 37
1| 1| 1| 1| 1440| 31| 1400| 32| 1365| 33| 1230| 36| 1295| 36| 1255| 35| 1220| 36| 1185| 38
***TA/TK-080(C)-*B1| **80000**| 0| 0| 0| 0| | | | | | | | | | | | | | | |
1| 0| 0| 0| | | | | | | | | | | | | | | |
0| 1| 0| 0| | | | | | | | | | | | | | | |
1| 1| 0| 0| 725| –| | | | | | | | | | | | | |
0| 0| 1| 0| 810| –| | | | | | | | | | | | | |
1| 0| 1| 0| 940| –| 890| –| 845| –| 795| –| 750| –| 700| –| | | |
0| 1| 1| 0| 990| 60| 945| –| 905| –| 860| –| 820| –| 775| –| 735| –| 690| –
1| 1| 1| 0| 1055| 56| 1015| 58| 970| –| 930| –| 890| –| 845| –| 805| –| 760| –
0| 0| 0| 1| 1135| 52| 1095| 54| 1055| 56| 1010| 59| 960| –| 930| –| 890| –| 850| –
1| 0| 0| 1| 1185| 50| 1145| 52| 1105| 54| 1065| 56| 1030| 58| 990| 60| 950| –| 910| –
0| 1| 0| 1| 1250| 47| 1210| 49| 1170| 51| 1135| 52| 1095| 54| 1055| 56| 1020| 58| 980| 60
1| 1| 0| 1| 1290| 46| 1255| 47| 1220| 49| 1180| 50| 1145| 52| 1110| 53| 1075| 55| 1040| 57
0| 0| 1| 1| 1315| 45| 1275| 46| 1240| 48| 1200| 49| 1160| 51| 1120| 53| 1085| 55| 1045| 57
1| 0| 1| 1| 1350| 44| 1315| 45| 1280| 46| 1245| 48| 1205| 49| 1170| 51| 1135| 52| 1100| 54
0| 1| 1| 1| 1390| 43| 1350| 44| 1315| 45| 1275| 46| 1240| 48| 1200| 49| 1160| 51| 1125| 53
1| 1| 1| 1| 1420| 42| 1380| 43| 1345| 44| 1310| 45| 1270| 47| 1235| 48| 1200| 49| 1160| 51

Notes :

Motor Switch Settings are for heating speeds using HEAT switches 1, 2, 3, & 4 and cooling speeds using COOL switches 5, 6, 7, & 8.
Two openings are required for airflows above 1600 CFM if the filter(s) is (are) adjacent to the furnace.
Data is shown without filter.
Temperature rises in the table are approximate. Actual temperature rises may vary.
Temperature rises that are shaded in grey are not recommended.

BLOWER PERFORMANCE – KG7TA/TK Continued

G7TA/TK – 80% AFUE, Two Stage Gas Furnace

**Model Number| ****Heating Input (Btuh)| ****Motor Switch Setting| External Static Pressure (in.w.c.)
0.1| 0.2| 0.3| 0.4| 0.5| 0.6| 0.7| 0.8
1/5| 2/6| 3/7| 4/8| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise
***TA100(C)-*B1| **100000| 0| 0| 0| 0| 905| –| 890| –| 805| –| 780| –| | | | | | | |
1| 0| 0| 0| 980| –| 930| –| 900| –| 835| –| 820| –| 800| –| 715| –| 670| –
0| 1| 0| 0| 1095| –| 1015| –| 980| –| 915| –| 895| –| 870| –| 810| –| 765| –
1| 1| 0| 0| 1160| 64| 1100| –| 1065| –| 1035| –| 995| –| 940| –| 895| –| 865| –
0| 0| 1| 0| 1230| 60| 1195| 62| 1170| –| 1110| –| 1075| –| 1060| –| 995| –| 970| –
1| 0| 1| 0| 1315| 56| 1275| 58| 1240| 60| 1195| 62| 1160| 64| 1140| 65| 1115| –| 1075| –
0| 1| 1| 0| 1345| 55| 1310| 57| 1280| 58| 1250| 59| 1220| 61| 1190| 62| 1140| 65| 1115| –
1| 1| 1| 0| 1445| 51| 1390| 53| 1350| 55| 1315| 56| 1280| 58| 1250| 59| 1230| 60| 1185| 63
0| 0| 0| 1| 1490| 50| 1430| 52| 1420| 52| 1380| 54| 1340| 55| 1310| 57| 1280| 58| 1275| 58
1| 0| 0| 1| 1550| 48| 1510| 49| 1475| 50| 1450| 51| 1420| 52| 1375| 54| 1340| 55| 1325| 56
0| 1| 0| 1| 1600| 46| 1270| 58| 1540| 48| 1500| 49| 1475| 50| 1445| 51| 1425| 52| 1385| 53
1| 1| 0| 1| 1640| 45| 1605| 46| 1570| 47| 1550| 48| 1525| 49| 1490| 50| 1460| 51| 1430| 52
0| 0| 1| 1| 1690| 44| 1665| 44| 1630| 45| 1600| 46| 1570| 47| 1550| 48| 1515| 49| 1490| 50
1| 0| 1| 1| 1755| 42| 1730| 43| 1680| 44| 1660| 45| 1640| 45| 1610| 46| 1575| 47| 1550| 48
0| 1| 1| 1| 1805| 41| 1770| 42| 1740| 43| 1715| 43| 1690| 44| 1655| 45| 1645| 45| 1605| 46
1| 1| 1| 1| 1860| 40| 1825| 41| 1790| 41| 1765| 42| 1745| 42| 1710| 43| 1695| 44| 1660| 45
***TA/TK-100(C)-*C1| **100000**| 0| 0| 0| 0| 1125| 66| 1040| –| 960| –| | | | | | | | | |
1| 0| 0| 0| 1205| 61| 1120| –| 1040| –| 960| –| | | | | | | |
0| 1| 0| 0| 1305| 57| 1225| 60| 1150| 64| 1070| –| 995| –| 915| –| | | |
1| 1| 0| 0| 1430| 52| 1350| 55| 1270| 58| 1190| 62| 1110| –| 1030| –| 950| –| 865| –
0| 0| 1| 0| 1525| 49| 1450| 51| 1375| 54| 1300| 57| 1225| 60| 1150| 64| 1075| –| 1000| –
1| 0| 1| 0| 1620| 46| 1540| 48| 1465| 51| 1390| 53| 1315| 56| 1240| 60| 1165| 64| 1090| –
0| 1| 1| 0| 1695| 44| 1620| 46| 1545| 48| 1465| 51| 1390| 53| 1315| 56| 1235| 60| 1160| 64
1| 1| 1| 0| 1770| 42| 1700| 44| 1630| 45| 1555| 48| 1485| 50| 1410| 53| 1340| 55| 1265| 59
0| 0| 0| 1| 1875| 40| 1805| 41| 1730| 43| 1655| 45| 1580| 47| 1510| 49| 1435| 52| 1340| 55
1| 0| 0| 1| 1905| 39| 1840| 40| 1775| 42| 1710| 43| 1640| 45| 1575| 47| 1510| 49| 1445| 51
0| 1| 0| 1| 1980| 37| 1910| 39| 1845| 40| 1780| 42| 1715| 43| 1650| 45| 1580| 47| 1515| 49
1| 1| 0| 1| 2025| 37| 1960| 38| 1895| 39| 1830| 40| 1765| 42| 1700| 44| 1635| 45| 1570| 47
0| 0| 1| 1| 2085| 36| 2025| 37| 1960| 38| 1900| 39| 1840| 40| 1775| 42| 1715| 43| 1655| 45
1| 0| 1| 1| 2135| 35| 2070| 36| 2010| 37| 1945| 38| 1880| 39| 1815| 41| 1750| 42| 1685| 44
0| 1| 1| 1| 2200| 34| 2145| 35| 2090| 35| 2035| 36| 1980| 37| 1925| 38| 1870| 40| 1820| 41
1| 1| 1| 1| 2280| 32| 2225| 27| 2170| 34| 2115| 35| 2065| 22| 2010| 37| 1955| 38| 1900| 39

Notes:

Motor Switch Settings are for heating speeds using HEAT switches 1, 2, 3, & 4 and cooling speeds using COOL switches 5, 6, 7, & 8.
Two openings are required for airflows above 1600 CFM if the filter(s) is (are) adjacent to the furnace.
Data is shown without filter.
Temperature rises in the table are approximate. Actual temperature rises may vary.
Temperature rises that are shaded in grey are not recommended.

BLOWER PERFORMANCE – KG7TA/TK Continued

****

Model Number

|

Heating Input (Btuh)

|

Motor Switch Setting

|

****

TA/TK-120(C)-C1

|

|

–

|

62

|

57

|

53

TA/TK-140(C)-D1

|

|

–

|

66

|

63

|

57

|

53

MODEL IDENTIFICATION CODE

SPECIFICATIONS

KG7TA/TK MODEL NUMBERS| **060C-23A1| ****080C-24B1| ****100C-24B1| ****100C-35C1| ****120C-35C1| ****140C-45D1
---|---|---|---|---|---|---
Input – Btuh (a)| 60,000 / 39,000| 80,000 / 52,000| 100,000 / 65,000| 100,000 / 65,000| 120,000 / 78,000| 140,000 / 91,000
Heating Capacity – Btuh| 48,000 / 31,200| 64,000 / 41,600| 80,000 / 52,600| 80,000 / 52,600| 96,000 / 62,400| 112,000 / 72,800
AFUE**| 80.0| 80.0| 80.0| 80.0| 80.0| 80.0
Blower D x W| 10 x 6| 11 x 8| 11 x 8| 11 x 10| 11 x 10| 11 x 10
Motor H.P. – Speed – Type| 1/2 BLDC| 1/2 BLDC| 1/2 BLDC| 3/4 BLDC| 3/4 BLDC| 1 BLDC
Motor FLA| 6.2| 6.2| 8.7| 8.7| 8.7| 11.7
Rated Ext. SP – In. W.C.| 0.5| 0.5| 0.5| 0.5| 0.5| 0.5
Temperature Rise Range – ºF| 25-55| 30-60| 30-60| 35-65| 35-65| 40-70
Shipping Weights – TA| 104lbs| 116lbs| 120lbs| 135lbs| 135lbs| 154lbs
Shipping Weights – TK| 104lbs| 116lbs| 116lbs| 135lbs| 140lbs| 146lbs

All models are 115 V, 60 HZ. Gas connections are 1/2″ N.P.T. AFUE= Annual Fuel Utilization Efficiency

ACCESSORIES

KG7TA/TK KITS

GENERAL TERMS OF LIMITED WARRANTY

Nortek Global HVAC, LLC will furnish a replacement for any part of this product which fails in normal use and service within the terms and conditions of the warranty.

For complete details of the Limited Warranty, including applicable terms and conditions, see your local installer or contact the Nortek Global HVAC, LLC warranty department for a copy.

Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. Specifications and illustrations

subject to change without notice and without incurring obligations. Printed in U.S.A (06/2017