NuTone FG7T High-Efficiency Upflow Horizontal Downflow Gas

Product Information

Technical Specifications

Product Name: FG7T (C and L Series) Gas Furnaces

• Two Stage, Fixed Speed, High Efficiency Upflow/Horizontal and Downflow Gas Furnaces
• Induced Draft – 95.1 AFUE Input 60,000 – 120,000 Btuh

Features and Benefits

• 100% fired and tested
• Best packaging in the industry
• 30-second blower delay
• 30-second post purge
• Hot surface igniter
• Color-coded wire harness
• Flexible category IV venting system
• High Static Blowers
• Low Boy Height
• Tubular primary heat exchanger
• 90-second fixed cooling cycle blower-off delay (TDR)
• Variable speed blower kit
• LP convertible
• Diagnostic lights for easy troubleshooting without counting flashes
• Incorporates integrated control board
• Two-piece door design
• Blower Compartment
• Sealed Vestibule
• 2 Stage Inducer

Location of Furnace Components

• Flame Sensor
• Finish Flange
• Roll-Out Switch
• Pressure Switches (Inducer)
• Main Air Limit Switch
• Inducer Assembly
• Blower Door Switch
• Motor Control Box
• Motor Choke (C & D cabinets only)
• Burner Assembly
• Igniter
• Gas Valve
• Furnace Control Board
• Pressure Switches (Condensate)
• Transformer
• Motor Control Board
• Blower Assembly

The following components are located in the Downflow Gas Furnace:

• Flame Sensor
• Finish Flange
• Roll-Out Switch
• Pressure Switches (Inducer)
• Main Air Limit Switch
• Inducer Assembly
• Gas Valve
• Igniter
• Burner Assembly
• Gas Manifold

Dimensions

• Cabinet   Size A: 19 inches
• Cabinet Size B: 23 1/2 inches
• Cabinet Size C: 2 3/4 inches

Model Identification Code

FG7TC/TL – Cabinet Width: C, Cooling Airflow: 080, Input Heating Capacity: D, 24 B

Blower Performance – FG7TC/TL

• Motor Switch: 1/5, External Static Pressure (in.w.c.): 0.1, CFM
• Rise: 2/6
• Motor Switch: 2/6, External Static Pressure (in.w.c.): 0.2, CFM
• Rise: 3/7
• Motor Switch: 3/7, External Static Pressure (in.w.c.): 0.3, CFM
• Rise: 4/8
• Motor Switch: 4/8, External Static Pressure (in.w.c.): 0.4, CFM
• Rise: CFM Rise
• Motor Switch: 5/9, External Static Pressure (in.w.c.): 0.5, CFM
• Rise: CFM Rise
• Motor Switch: 6/10, External Static Pressure (in.w.c.): 0.6, CFM
• Rise: CFM Rise
• Motor Switch: 7/11, External Static Pressure (in.w.c.): 0.7, CFM
• Rise: CFM Rise
• Motor Switch: 8/12, External Static Pressure (in.w.c.): 0.8, CFM
• Rise: CFM Rise

Venting

• Furnace Models (BTU): Furnace Installation Vent Table Single Pipe Length (ft.) with 1 long radius elbow**:
• Outlet 2 Diameter
• Outlet 3 Diameter
• Direct Vent, Dual Pipe Length (ft.) with 1 long radius elbow on each pipe**:

Product Usage Instructions

Installation

1. Choose a suitable location for the furnace.
2. Ensure proper ventilation and clearance for the furnace.
3. Follow the venting guidelines provided in the user manual.
4. Connect the necessary gas and electrical connections.
5. Secure the furnace in place using the appropriate mounting brackets.

Operation

1. Set the desired temperature on the thermostat.
2. The furnace will automatically ignite and start heating the air.
3. The blower will circulate the heated air throughout the space.
4. Monitor the furnace for any unusual sounds or malfunctions.
5. Follow the maintenance guidelines to ensure optimal performance.

Maintenance

1. Regularly clean or replace the air filters to maintain airflow.
2. Inspect the furnace components for any signs of damage or wear.
3. Schedule professional maintenance at least once a year.
4. Keep the area around the furnace clean and free from debris.

FAQ

Q: How often should I clean or replace the air filters?

• A: It is recommended to clean or replace the air filters every 1-3 months, depending on usage and air quality.

Q: Can I convert the furnace to use propane gas?

• A: Yes, the furnace is LP convertible. Please refer to the user manual for instructions on propane gas conversion.

Q: What should I do if the furnace is not igniting?

• A: Check the hot surface igniter and ensure it is in working condition. If the issue persists, contact a qualified technician for assistance.

TECHNICAL SPECIFICATIONS

FG7T (C and L Series)

• ISEER, Smartlite®
• Two Stage, Fixed Speed,
• High Efficiency Upflow/Horizontal and Downflow Gas Furnaces
• Induced Draft – 95.1 AFUE
• Input 60,000 – 120,000 Btuh
• The high-efficiency upflow gas furnace may be installed free-standing in a utility room, or basement, or enclosed in an alcove or closet.
• Upflow/horizontal units come ready for upflow or horizontal application. The extended flush 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 is required for 10 years All Parts Warranty and Quality Pledge within a limited time after the installation.
• See the current warranty document or visit our consumer website listed on the back of this document for warranty details.
• When registered, this product is upgraded to a limited lifetime heat exchanger warranty.

FEATURES and BENEFITS

• iSEER: 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 the product will arrive to the homeowner dent-free.
• 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 the life of the heat exchanger.
• Hot surface igniter: Innovative application of a silicon nitride type 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.
• Flexible category IV venting system: May be vertically or horizontally vented using either a one-pipe or two-pipe system for maximum installation flexibility.
• High Static Blowers: All models are equipped with high static blowers.
• 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 and stainless steel secondary heat exchanger ensure a long life.
• 90 second fixed cooling cycle blower-off delay (TDR):
• Increases cooling performance when matched with a NORDYNE coil.
• Variable speed blower kit: Upgradable to full variable speed with the 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.
• Incorporates integrated control board: With connections for electronic air cleaner, humidifier, and twinning.
• Two-piece door design: Enhances furnace appearance and uses captured screws to prevent losing door screws.
• Blower Compartment: Sealed door to reduce air leakage and insulated for ultra-quiet operation.
• Sealed Vestibule: Reduces burner and inducer sound levels.
• 2 Stage Inducer: Optimizes efficiency on first-stage heat and reduces sound levels.

LOCATION OF FURNACE COMPONENTS

DIMENSIONS

TC 95.1% Upflow/Horizontal Furnace

NOTES:
$IMENSIONS SHOWN IN INCHES.

TL 95.1% Downflow Furnace

MODEL IDENTIFICATION CODE

SPECIFICATIONS

FG7TC/TL MODELS NUMBERS:| **-060D-24B| ****-080D-35C| ****-100D-35C| ****-120D-45D
---|---|---|---|---
)NPUT – “TUH (A)| 60,000 / 39,000| 80,000 / 52,000| 100,000 / 65,000| 120,000 / 78,000
(EATING #APACITY – “TUH| 57,000 / 37,050| 76,000 / 49,400| 95,000 / 61,750| 114,000 / 74,100
AFUE*| 95.1| 95.1| 95.1| 95.1
“LOWER $ X 7| 11 X 8| 11 X 10| 11 X 10| 11 X 10
-OTOR (.0. – 3PEED – 4YPE| 1/2 – “,$#| 3/4 – “,$#| 3/4 – “,$#| 1 – “,$#
-OTOR &,!| 6.2| 8.7| 8.7| 11.7
2ATED %XT. 30 – )N. 7.#.| 0.5| 0.5| 0.5| 0.5
4EMPERATURE 2ISE 2ANGE – Ž&| 30-60| 35-65| 35-65| 40-70
3HIPPING 7EIGHTS| 125LBS| 135LBS| 145LBS| 160LBS

• TL 120 is 94.8% AFUE

Note:

• All models are 115V, 60 Hz. Gas Connections are 1/2″ N.P.T. AFUE = Annual Fuel Utilization Efficiency
• (a) Ratings to 2,000 ft. Over 2,000 ft. reduce 4% for each 1,000 ft. above sea level.

BLOWER PERFORMANCE – FG7TC/TL

FG7TC/TL – 95.1% 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

4#/4,-060$-”

| ****

60000

| 0| 0| 0| 0|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1| 0| 0| 0|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
0| 1| 0| 0|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1| 1| 0| 0| 725| 73|  |  |  |  |  |  |  |  |  |  |  |  |  |
0| 0| 1| 0| 810| 65|  |  |  |  |  |  |  |  |  |  |  |  |  |
1| 0| 1| 0| 940| 56| 890| 59| 845| 62| 795| 66| 750| 70| 700| 75|  |  |  |
0| 1| 1| 0| 990| 53| 945| 56| 905| 58| 860| 61| 820| 64| 775| 68| 735| 72| 690| 76
1| 1| 1| 0| 1055| 50| 1015| 52| 970| 54| 930| 57| 890| 59| 845| 62| 805| 66| 760| 69
0| 0| 0| 1| 1135| 47| 1095| 48| 1055| 50| 1010| 52| 960| 55| 930| 57| 890| 59| 850| 62
1| 0| 0| 1| 1185| 45| 1145| 46| 1105| 48| 1065| 50| 1030| 51| 990| 53| 950| 56| 910| 58
0| 1| 0| 1| 1250| 42| 1210| 44| 1170| 45| 1135| 47| 1095| 48| 1055| 50| 1020| 52| 980| 54
1| 1| 0| 1| 1290| 41| 1255| 42| 1220| 43| 1180| 45| 1145| 46| 1110| 48| 1075| 49| 1040| 51
0| 0| 1| 1| 1315| 40| 1275| 41| 1240| 43| 1200| 44| 1160| 45| 1120| 47| 1085| 49| 1045| 51
1| 0| 1| 1| 1350| 39| 1315| 40| 1280| 41| 1245| 42| 1205| 44| 1170| 45| 1135| 47| 1100| 48
0| 1| 1| 1| 1390| 38| 1350| 39| 1315| 40| 1275| 41| 1240| 43| 1200| 44| 1160| 45| 1125| 47
1| 1| 1| 1| 1420| 37| 1380| 38| 1345| 39| 1310| 40| 1270| 42| 1235| 43| 1200| 44| 1160| 45

4#/4,-080$-#

| ****

80000

| 0| 0| 0| 0| 1125| 55| 1040| 68| 960| 73| 880| 80| 795| 89|  |  |  |  |  |
1| 0| 0| 0| 1205| 58| 1120| 63| 1040| 68| 960| 73| 875| 80| 795| 89|  |  |  |
0| 1| 0| 0| 1305| 54| 1225| 57| 1150| 61| 1070| 66| 995| 71| 915| 77| 840| 84| |
1| 1| 0| 0| 1430| 49| 1350| 52| 1270| 55| 1190| 59| 1110| 63| 1030| 68| 950| 74| 865| 81
0| 0| 1| 0| 1525| 46| 1450| 49| 1375| 51| 1300| 54| 1225| 57| 1150| 61| 1075| 65| 1000| 70
1| 0| 1| 0| 1620| 43| 1540| 46| 1465| 48| 1390| 51| 1315| 54| 1240| 57| 1165| 60| 1090| 65
0| 1| 1| 0| 1695| 42| 1620| 43| 1545| 46| 1465| 48| 1390| 51| 1315| 54| 1235| 57| 1160| 61
1| 1| 1| 0| 1770| 40| 1700| 41| 1630| 43| 1555| 45| 1485| 47| 1410| 50| 1340| 53| 1265| 56
0| 0| 0| 1| 1875| 38| 1805| 39| 1730| 41| 1655| 43| 1580| 45| 1510| 47| 1435| 49| 1340| 53
1| 0| 0| 1| 1905| 37| 1840| 38| 1775| 40| 1710| 41| 1640| 43| 1575| 45| 1510| 47| 1445| 49
0| 1| 0| 1| 1980| 36| 1910| 37| 1845| 38| 1780| 40| 1715| 41| 1650| 43| 1580| 45| 1515| 46
1| 1| 0| 1| 2025| 35| 1960| 36| 1895| 37| 1830| 38| 1765| 40| 1700| 41| 1635| 43| 1570| 45
0| 0| 1| 1| 2085| 34| 2025| 35| 1960| 36| 1900| 37| 1840| 38| 1775| 40| 1715| 41| 1655| 43
1| 0| 1| 1| 2135| 33| 2070| 34| 2010| 35| 1945| 36| 1880| 37| 1815| 39| 1750| 40| 1685| 42
0| 1| 1| 1| 2200| 32| 2145| 33| 2090| 34| 2035| 35| 1980| 36| 1925| 37| 1870| 38| 1820| 39
1| 1| 1| 1| 2280| 31| 2225| 32| 2170| 32| 2115| 33| 2065| 34| 2010| 35| 1955| 36| 1900| 37

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 filters) is (are) adjacent to the furnace.
3. Data is shown without a 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.

FG7TC/TL – 95.1% 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**

4#/4,-100$-#

| ****

100000

| 0| 0| 0| 0| 1125| 78| 1040| 85|  |  |  |  |  |  |  |  |  |  |  |
1| 0| 0| 0| 1205| 73| 1120| 79| 1040| 85|  |  |  |  |  |  |  |  |  |
0| 1| 0| 0| 1305| 67| 1225| 72| 1150| 76| 1070| 82| 995| 88|  |  |  |  |  |
1| 1| 0| 0| 1430| 62| 1350| 65| 1270| 69| 1190| 74| 1110| 79| 1030| 85|  |  | |
0| 0| 1| 0| 1525| 58| 1450| 61| 1375| 64| 1300| 68| 1225| 72| 1150| 76| 1075| 82| 1000| 88
1| 0| 1| 0| 1620| 54| 1540| 57| 1465| 60| 1390| 63| 1315| 67| 1240| 71| 1165| 76| 1090| 81
0| 1| 1| 0| 1695| 52| 1620| 54| 1545| 57| 1465| 60| 1390| 63| 1315| 67| 1235| 71| 1160| 76
1| 1| 1| 0| 1770| 50| 1700| 52| 1630| 54| 1555| 57| 1485| 59| 1410| 62| 1340| 66| 1265| 70
0| 0| 0| 1| 1875| 47| 1805| 49| 1730| 51| 1655| 53| 1580| 56| 1510| 58| 1435| 61| 1340| 66
1| 0| 0| 1| 1905| 46| 1840| 48| 1775| 50| 1710| 51| 1640| 54| 1575| 56| 1510| 58| 1445| 61
0| 1| 0| 1| 1980| 44| 1910| 46| 1845| 48| 1780| 49| 1715| 51| 1650| 53| 1580| 56| 1515| 58
1| 1| 0| 1| 2025| 43| 1960| 45| 1895| 46| 1830| 48| 1765| 50| 1700| 52| 1635| 54| 1570| 56
0| 0| 1| 1| 2085| 42| 2025| 43| 1960| 45| 1900| 46| 1840| 48| 1775| 50| 1715| 51| 1655| 53
1| 0| 1| 1| 2135| 41| 2070| 42| 2010| 44| 1945| 45| 1880| 47| 1815| 48| 1750| 50| 1685| 52
0| 1| 1| 1| 2200| 40| 2145| 41| 2090| 42| 2035| 43| 1980| 44| 1925| 46| 1870| 47| 1820| 48
1| 1| 1| 1| 2280| 39| 2225| 40| 2170| 41| 2115| 42| 2065| 43| 2010| 44| 1955| 45| 1900| 46

4#/4,-120$-$

| ****

120000

| 0| 0| 0| 0| 1395| 76| 1350| 78| 1305| 81| 1260| 84| 1210| 87| 1165| 91| 1120| 94|  |
1| 0| 0| 0| 1465| 72| 1420| 74| 1375| 77| 1330| 79| 1290| 82| 1245| 85| 1200| 88| 1155| 91
0| 1| 0| 0| 1555| 68| 1510| 70| 1470| 72| 1425| 74| 1380| 76| 1340| 79| 1295| 82| 1250| 84
1| 1| 0| 0| 1625| 65| 1585| 67| 1540| 69| 1500| 70| 1460| 72| 1415| 75| 1375| 77| 1335| 79
0| 0| 1| 0| 1690| 62| 1650| 64| 1610| 66| 1570| 67| 1530| 69| 1485| 71| 1445| 73| 1405| 75
1| 0| 1| 0| 1760| 60| 1715| 62| 1670| 63| 1625| 65| 1575| 67| 1530| 69| 1485| 71| 1440| 73
0| 1| 1| 0| 1835| 58| 1790| 59| 1745| 60| 1695| 62| 1650| 64| 1605| 66| 1555| 68| 1510| 70
1| 1| 1| 0| 1885| 56| 1840| 57| 1790| 59| 1745| 60| 1700| 62| 1655| 64| 1610| 66| 1565| 67
0| 0| 0| 1| 1945| 54| 1900| 56| 1850| 57| 1805| 58| 1760| 60| 1710| 62| 1665| 63| 1620| 65
1| 0| 0| 1| 1950| 54| 1905| 55| 1860| 57| 1820| 58| 1775| 59| 1735| 61| 1690| 62| 1650| 64
0| 1| 0| 1| 2075| 51| 2030| 52| 1990| 53| 1945| 54| 1900| 56| 1855| 57| 1810| 58| 1770| 60
1| 1| 0| 1| 2125| 50| 2085| 51| 2040| 52| 2000| 53| 1955| 54| 1910| 55| 1870| 56| 1825| 58
0| 0| 1| 1| 2170| 49| 2130| 50| 2090| 51| 2045| 52| 2005| 53| 1965| 54| 1925| 55| 1880| 56
1| 0| 1| 1| 2215| 48| 2180| 48| 2140| 49| 2105| 50| 2070| 51| 2035| 52| 2000| 53| 1965| 54
0| 1| 1| 1|  |  |  |  |  |  |  |  | 2225| 47| 2165| 49| 2100| 50| 2040| 52
1| 1| 1| 1|  |  |  |  |  |  |  |  |  |  | 2170| 49| 2120| 50| 2065| 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 the 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.

VENTING

All models are approved for vertical non direct (1 pipe) and direct (2 pipe) venting applications. See Vent Table below for specified sizes and allowable lengths.

VENT TABLE

FURNACE MODELS (BTU)

| ****

FURNACE INSTALLATION

| SINGLE PIPE LENGTH (FT.)

with 1 long radius elbow**

| DIRECT VENT,

DUAL PIPE LENGTH (ft.) WITH

1 long radius elbow on each pipe**

---|---|---|---
OUTLET| OUTLET| INLET/OUTLET| INLET/OUTLET
2” Diameter| 3” Diameter| 2” Diameter| 3” Diameter

60,000

| 5PmOW| 90| 90| 90| 90
(HORIZONTAL| 50| 90| 50| 90
$OWNmOW| 30| 90| 30| 90

80,000

| 5PmOW| 90| 90| 90| 90
(HORIZONTAL| 30| 90| 30| 90
$OWNmOW| 30| 90| 30| 90

100,000

| 5PmOW| 60| 90| 60| 90
(HORIZONTAL| 30| 90| 30| 90
$OWNmOW| 30| 90| 25| 90

120,000

| 5PmOW| ./!| 90| ./!| 90
(HORIZONTAL| ./!| 90| ./!| 90
$OWNmOW| ./!| 90| ./!| 90

NOTES:

1. Two 45-degree elbows are equivalent to one 90-degree elbow.
2. This table applies to elevations from sea level to 2,00 t. For higher elevations, decrease pipe lengths by 8% per 100 t of altitude.

ACCESSORIES

FG7TC/TL KITS

Description| SKU
&IXED SPEED -TO- VARIABLE SPEED| 904880
2″ #ONCENTRIC VENT KIT| 904177
3″ #ONCENTRIC VENT KIT| 904176
“!” #ABINET DOWNmOW SUB BASE KIT| 902974
“””, “#”, “$” #ABINET DOWNmOW SUB BASE KIT| 904911
2″ 3IDE WALL VENT KIT| 904617
3″ 3IDE WALL VENT KIT| 904347
5.3. ,0 #ONVERSION KIT (0 TO 10,000 FT.)| 904914

ANADA ,0 #ONVERSION KIT (0 TO 4,500 FT.)| 904915

“OTTOM RETURN lLTER 20 PER BOX, “!” CABINET| 903088
“OTTOM RETURN lLTER 20 PER BOX, “”” CABINET| 904916
“OTTOM RETURN lLTER 20 PER BOX, “#” CABINET| 904917
“OTTOM RETURN lLTER 20 PER BOX, “$” CABINET| 904918
3IDE RETURN lLTER KIT| 541036
.EUTRALIZER KIT| 902377

GENERAL TERMS OF LIMITED WARRANTY

• NORDYNE will furnish a replacement for any part of this product that fails in normal use and service within the first ten years of installation, under 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.

NORDYNE COMPLETE COMFORT. GENUINE VALUE

• 8000 Phoenix Parkway | O’Fallon, MO 63368-3827
• Specifications and illustrations are subject to change without notice and without incurring obligations. Printed in U.S.A (03/2010) 217D-0310 (Replaces 217D-1009)
• www.nutonehvac.com
• NuTone® trademark used under license. © Nortek Global HVAC, LLC. All Rights Reserved.

References

• TCPDF

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