NuTone FG7T High Efficiency Upflow Horizontal Downflow Gas Furnaces Owner’s Manual

NuTone FG7T High Efficiency Upflow Horizontal Downflow Gas Furnaces

INTRODUCTION

Two Stage, Fixed Speed, High Efficiency Upflow/Horizontal and Downflow Gas Furnaces

Induced Draft – 80 + AFUE
Input 60,000 – 140,000 Btuh

The high efficiency gas furnace may be installed free standing in a utility room, basement, or enclosed in an alcove or closet. The rounded corner jacket provides a pleasing “appliance appearance.” Design certified by CSA for application in Canada and the United States.

WARRANTY

• 10 Year all-parts warranty.

• 10 Year Quality Pledge to replace the unit if the heat exchanger fails within the first 10 years of operation, to the original owner.

• Consumer product registration required for 10 year
  All Parts Warranty and Quality Pledge within a limited period of time after the installation. See current warranty document or visit our consumer web site for warranty details.

• When registered, this product is upgraded to a limited lifetime heat exchanger warranty.

FEATURES and BENEFITS

• i SEER: Energy efficient brushless DC (ECM) motor gives up to 1 SEER point efficiency gain in cooling.
• 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 igniter: Innovative application of a silicon nitride igniter. 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 NORDYNE 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.
• LP convertible: Simple burner orifice and regulator spring change for ease of convertibility.
• Diagnostic lights for easy troubleshooting without counting flashes: 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, humidifier and twinning.
• Two piece door design: Enhances furnace appearance and uses captured screws to prevent loosing door screws.
• Blower Compartment: Insulated for ultra quiet operation.
• 2 Stage Inducer: Optimizes efficiency on first stage heat and reduces sound levels.

GAS FURNACE COMPONENTS

1. Blower Assembly
2. Blower Door Switch
3. Burner Assembly
4. Flame Roll-Out Switch
5. Flame Sensor
6. Furnace Control Board
7. Gas Manifold
8. Gas Valve
9. Igniter
10. Inducer Assembly
11. Main Air Limit Switch
12. Motor Choke (3/4 and 1HP only)
13. Motor Control Board
14. Motor Control Box
15. Pressure Switch(s)
16. Transformer

Upflow/Horizontal Gas Furnace

1. Blower Assembly
2. Blower Door Switch
3. Burner Assembly
4. Combustion Tube
5. Flame Roll-Out Switch
6. Flame Sensor
7. Furnace Control Board
8. Gas Manifold
9. Gas Valve
10. Igniter
11. Inducer Assembly
12. Main Air Limit Switch
13. Motor Choke (3/4 and 1HP only)
14. Motor Control Board
15. Pressure Switch(s)
16. Transformer

Downflow Gas Furnace

DIMENSIONS

FG7TA 80+ High Efficiency Upflow/Horizontal Series

FG7TK 80+ High Efficiency Downflow Series

BLOWER PERFORMANCE – FG7TA/TK

FG7TA/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| 74| 555| 80| 510| | | | | | | | | | |
1| 1| 0| 0| 705| 63| 670| 66| 635| 70| 600| 74| | | | | | | |
0| 0| 1| 0| 775| 57| 740| 60| 705| 63| 665| 67| | | | | | | |
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| 82| | | | | | | | | | | | | |
0| 0| 1| 0| 810| 73| | | | | | | | | | | | | |
1| 0| 1| 0| 940| 63| 890| 67| 845| 70| 795| 75| 750| 79| 700| 85| | | |
0| 1| 1| 0| 990| 60| 945| 63| 905| 65| 860| 69| 820| 72| 775| 76| 735| 81| 690| 86
1| 1| 1| 0| 1055| 56| 1015| 58| 970| 61| 930| 64| 890| 67| 845| 70| 805| 74| 760| 78
0| 0| 0| 1| 1135| 52| 1095| 54| 1055| 56| 1010| 59| 960| 62| 930| 64| 890| 67| 850| 70
1| 0| 0| 1| 1185| 50| 1145| 52| 1105| 54| 1065| 56| 1030| 58| 990| 60| 950| 62| 910| 65
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:

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

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| 82| 890| 83| 805| 92| 780| 95| | | | | | | |
1| 0| 0| 0| 980| 76| 930| 80| 900| 82| 835| 89| 820| 90| 800| 93| 715| 104| 670| 111
0| 1| 0| 0| 1095| 68| 1015| 73| 980| 76| 915| 81| 895| 83| 870| 85| 810| 91| 765| 97
1| 1| 0| 0| 1160| 64| 1100| 67| 1065| 70| 1035| 72| 995| 74| 940| 79| 895| 83| 865| 86
0| 0| 1| 0| 1230| 60| 1195| 62| 1170| 63| 1110| 67| 1075| 69| 1060| 70| 995| 74| 970| 76
1| 0| 1| 0| 1315| 56| 1275| 58| 1240| 60| 1195| 62| 1160| 64| 1140| 65| 1115| 66| 1075| 69
0| 1| 1| 0| 1345| 55| 1310| 57| 1280| 58| 1250| 59| 1220| 61| 1190| 62| 1140| 65| 1115| 66
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| 71| 960| 77| | | | | | | | | |
1| 0| 0| 0| 1205| 61| 1120| 66| 1040| 71| 960| 77| | | | | | | |
0| 1| 0| 0| 1305| 57| 1225| 60| 1150| 64| 1070| 69| 995| 74| 915| 81| | | |
1| 1| 0| 0| 1430| 52| 1350| 55| 1270| 58| 1190| 62| 1110| 67| 1030| 72| 950| 78| 865| 86
0| 0| 1| 0| 1525| 49| 1450| 51| 1375| 54| 1300| 57| 1225| 60| 1150| 64| 1075| 69| 1000| 74
1| 0| 1| 0| 1620| 46| 1540| 48| 1465| 51| 1390| 53| 1315| 56| 1240| 60| 1165| 64| 1090| 68
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:

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

FG7TA/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-120(C )-C1| 120000| 0| 0| 0| 0| 1125| 79| 1040| | | | | | | | | | | | |
1| 0| 0| 0| 1205| 74| 1120| 79| 1040| 85| | | | | | | | | |
0| 1| 0| 0| 1305| 68| 1225| 73| 1150| 77| 1070| 83| | | | | | | |
1| 1| 0| 0| 1430| 62| 1350| 66| 1270| 70| 1190| 75| 1110| 80| 1030| 86| | | |
0| 0| 1| 0| 1525| 58| 1450| 61| 1375| 65| 1300| 68| 1225| 73| 1150| 77| 1075| 83| 1000| 89
1| 0| 1| 0| 1620| 55| 1540| 58| 1465| 61| 1390| 64| 1315| 68| 1240| 72| 1165| 76| 1090| 82
0| 1| 1| 0| 1695| 52| 1620| 55| 1545| 58| 1465| 61| 1390| 64| 1315| 68| 1235| 72| 1160| 77
1| 1| 1| 0| 1770| 50| 1700| 52| 1630| 55| 1555| 57| 1485| 60| 1410| 63| 1340| 66| 1265| 70
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| 74| 1350| 77| 1305| 79| 1260| 82| 1210| 86| 1165| 89| | | |
1| 0| 0| 0| 1465| 71| 1420| 73| 1375| 75| 1330| 78| 1290| 80| 1245| 83| 1200| 86| |
0| 1| 0| 0| 1555| 67| 1510| 69| 1470| 71| 1425| 73| 1380| 75| 1340| 77| 1295| 80| 1250| 83
1| 1| 0| 0| 1625| 64| 1585| 65| 1540| 67| 1500| 69| 1460| 71| 1415| 73| 1375| 75| 1335| 78
0| 0| 1| 0| 1690| 61| 1650| 63| 1610| 64| 1570| 66| 1530| 68| 1485| 70| 1445| 72| 1405| 74
1| 0| 1| 0| 1760| 59| 1715| 60| 1670| 62| 1625| 64| 1575| 66| 1530| 68| 1485| 70| 1440| 72
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

Notes:

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

SPECIFICATIONS

FG7TA/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 / 52,000| 80,000 / 52,000| 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| 3/4 – 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| 115lbs| 110lbs| 120lbs| 125lbs| 135lbs| 155lbs

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

ACCESSORIES

FG7TA/TK KITS

Description

|

SKU

Fixed speed -to- variable speed|

904880

“A” Cabinet downflow sub base kit|

902974

“B”, “C”, “D” Cabinet downflow sub base kit|

904911

U.S. LP Conversion kit (0 to 10,000 ft.)|

904914

Canada LP Conversion kit (0 to 4,500 ft.)|

904915

Bottom return filter 20 per box, “A” cabinet|

903088

Bottom return filter 20 per box, “B” cabinet|

904916

Bottom return filter 20 per box, “C” cabinet|

904917

Bottom return filter 20 per box, “D” cabinet|

904918

Side return filter kit|

541036

GENERAL TERMS OF LIMITED WARRANTY

NORDYNE will furnish a replacement for any part of this product which fails in normal use and service within the first ten years of installation, in accordance with the terms of the warranty.

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

8000 Phoenix Parkway | O’Fallon, MO 63368-3827
Specifications and illustrations subject to change without notice and without incurring obligations. Printed in U.S.A (02/2010)

819C-0210 (Replaces 819C-1009)

www.nutonehvac.com

NuTone® trademark used under license. © Nortek Global HVAC, LLC. All Rights Reserved.

References

• TCPDF

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