BROAN FG7S High Efficiency Upflow Horizontal and Downflow Gas Furnaces Owner’s Manual

BROAN FG7S High Efficiency Upflow Horizontal and Downflow Gas Furnaces

Technical Specifications

• Product Name : FG7S (A and K Series) Gas Furnaces
• Type : High Efficiency Upflow/Horizontal and Downflow
• Induced Draft – 80+ AFUE Input
• Input Range : 45,000 – 126,000 Btuh
• Installation : Free standing in utility room, basement, or enclosed in an alcove or closet
• Design Certification : CSA for application in Canada and the United States

TECHNICAL SPECIFICATIONS

FG7S (A and K Series) High Efficiency Upflow/Horizontal and
Downflow Gas Furnaces

Induced Draft – 80+ AFUE
Input 45,000 – 126,000 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.

• This furnace series is approved and certified by the SCAQM and the SJVAPC Districts in the state of California under each Districts’ Mitigation Fee Plan for shipment into and sales in both districts.
  For California installations in SCAQMD only: This furnace does not meet the SCAQMD Rule 1111 NOx emission limit (14 ng/J), and thus is subject to a mitigation fee of up to $450. This furnace is not eligible for the Clean Air Furnace Rebate Program: www.CleanAirFurnaceRebate.com.

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 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 Nortek Global HVAC coil.
• Flexible category I venting system: May be vented with dedicated venting system or common vented with other category one appliances.
• High efficiency blower kits: Maximize efficiencies. On select units, a SEER improvement of up to 1 point is realized.
• Multi-speed direct drive blower: Designed to give a wide range of cooling capacities. Switches on PCB, provide ultra easy motor speed selection.
• 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 and humidifier.
• Two piece door design: Enhances furnace appearance and uses captured screws to prevent loosing door screws.
• Blower Compartment: Insulated for ultra quiet operation.
• 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

1. Blower Assembly
2.  Blower Door Switch
3. Burner Assembly
4. Control Board
5. Flame Sensor
6. Gas Manifold
7. Gas Valve
8. Igniter
9. Inducer
10.  Insulated Combustion Tube (Downflow Models)
11. Low Voltage Transformer
12. Main Air Limit Switch
13. Pressure Switch
14. Roll-Out Switch(s)

DIMENSIONS

FG7SA 80+ High Efficiency Upflow/Horizontal Series

FG7SK 80+ High Efficiency Downflow Series

BLOWER PERFORMANCE – FG7SA

**Model Number| Heating Input (Btuh)| **

Motor Speed

| External Static Pressure (Inches Water Column)
---|---|---|---
0.1| 0.2| 0.3| 0.4| 0.5| 0.6| 0.7| 0.8
CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise
| | High*| 1260| 26| 1205| 28| 1145| 29| 1080| 31| 1025| 33| 960| 35| 890| 37| 825| 40
SA045( )-23A

Bottom Return

| **** 45,000| Med-High

Med-Low**

| 955

825

| 35

40

| 950

800

| 35

42

| 940

760

| 35

44

| 935

730

| 36

46

| 925

690

| 36

48

| 860

650

| 39

51

| 800

600

| 42| 725

530

| 46
–| –
| | Low| 655| 51| 630| 53| 610| 55| 580| –| 550| –| 520| –| 480| –| 435| –
| | High*| 1350| 25| 1290| 26| 1225| 27| 1155| 29| 1100| 30| 1025| 33| 950| 35| 885| 38
SA045( )-23A

Side Return

| **** 45,000| Med-High

Med-Low**

| 1025

885

| 33

38

| 1015

855

| 33

39

| 1005

815

| 33

41

| 1000

780

| 33

43

| 990

740

| 34

45

| 920

695

| 36

48

| 855

640

| 39

52

| 775

565

| 43
–
| | Low| 700| 48| 675| 49| 655| 51| 620| –| 590| –| 555| –| 515| –| 465| –
| | High*| 1260| 32| 1205| 33| 1145| 35| 1080| 37| 1025| 39| 960| 42| 890| 45| 825| 48
SA054( )-23A

Bottom Return

| **** 54,000| Med-High

Med-Low**

| 955

825

| 42

48

| 950

800

| 42

50

| 940

760

| 43

53

| 935

730

| 43

55

| 925

690

| 43| 860

650

| 47| 800

600

| 50| 725

530

| 55
–| –| –| –
| | Low| 655| –| 630| –| 610| –| 580| –| 550| –| 520| –| 480| –| 435| –
| | High*| 1350| 30| 1290| 31| 1225| 33| 1155| 35| 1100| 36| 1025| 39| 950| 42| 885| 45
SA054( )-23A

Side Return

| **** 54,000| Med-High

Med-Low**

| 1025

885

| 39

45

| 1015

855

| 39

47

| 1005

815

| 40

49

| 1000

780

| 40

51

| 990

740

| 40

54

| 920

695

| 43| 855

640

| 47| 775

565

| 52
–| –| –
| | Low| 700| –| 675| –| 655| –| 620| –| 590| –| 555| –| 515| –| 465| –
| | High*| 1685| 32| 1640| 33| 1605| 33| 1565| 34| 1515| 35| 1475| 36| 1415| 38| 1345| 40
SA072( )-24B

Bottom Return

| **** 72,000| Med-High

Med-Low**

| 1330

1175

| 40

45

| 1295

1155

| 41

46

| 1275

1125

| 42

47

| 1245

1100

| 43

48

| 1215

1075

| 44

50

| 1185

1045

| 45

51

| 1135

1010

| 47

53

| 1070

955

| 50

56

| | Low| 930| 57| 895| 60| 885| 60| 850| –| 825| –| 800| –| 770| –| 740| –
| | High*| 1770| 30| 1720| 31| 1685| 32| 1645| 32| 1590| 34| 1550| 34| 1485| 36| 1415| 38
SA072( )-24B

Side Return

| **** 72,000| Med-High

Med-Low**

| 1400

1235

| 38

43

| 1360

1215

| 39

44

| 1340

1180

| 40

45

| 1310

1155

| 41

46

| 1275

1130

| 42

47

| 1245

1100

| 43

48

| 1190

1060

| 45

50

| 1125

1005

| 47

53

| | Low| 975| 55| 940| 57| 930| 57| 890| 60| 865| –| 840| –| 810| –| 775| –
| | High*| 1610| 41| 1575| 42| 1530| 44| 1485| 45| 1440| 46| 1385| 48| 1340| 50| 1275| 52
SA090( )-24B

Bottom Return

| 90,000| Med- High**

Med-Low

| 1295

1155

| 51

58

| 1260

1130

| 53

59

| 1235

1100

| 54

61

| 1220

1070

| 55| 1175

1035

| 57| 1135

1015

| 59| 1095

965

| –

–

| 1015

920

| –

–

–| –| –
| | Low| 880| –| 860| –| 830| –| 800| –| 765| –| 740| –| 675| –| 660| –
| | High*| 1690| 39| 1655| 40| 1610| 41| 1560| 43| 1510| 44| 1455| 46| 1405| 47| 1340| 50
SA090( )-24B

Side Return

| ** 90,000| Med- High

Med-Low

| 1360

1215

| 49

55

| 1325

1190

| 50

56

| 1300

1155

| 51

58

| 1280

1125

| 52

59

| 1235

1090

| 54| 1190

1065

| 56| 1150

1015

| 58| 1065

965

| –

–

–| –| –
| | Low| 925| –| 900| –| 870| –| 840| –| 800| –| 775| –| 710| –| 695| –
| | High*| 1950| –| 1865| –| 1790| –| 1715| –| 1630| –| 1550| –| 1475| 36| 1390| 38
SA072( )-35C

Bottom Return

| **** 72,000| Med-High

Med-Low**

| 1860

1300

| –| 1780

1240

| –| 1710

1200

| –| 1635

1160

| –| 1575

1120

| –| 1500

1065

| 36

50

| 1415

995

| 38

54

| 1325

910

| 40

59

41| 43| 44| 46| 48
| | Low| 1165| 46| 1115| 48| 1060| 50| 1025| 52| 985| 54| 940| 57| 890| 60| 825| 65
| | High*| 2030| –| 1940| –| 1860| –| 1785| –| 1695| –| 1615| –| 1535| 35| 1445| 37
SA072( )-35C

Side Return

| **** 72,000| Med-High

Med-Low**

| 1935

1350

| –| 1850

1290

| –| 1780

1250

| –| 1700

1205

| –| 1340

1165

| 40

46

| 1560

1110

| –| 1470

1035

| 36

52

| 1380

945

| 39

56

40| 41| 43| 44| 48
| | Low| 1215| 44| 1160| 46| 1105| 48| 1065| 50| 1025| 52| 980| 54| 925| 58| 860| 62

BLOWER PERFORMANCE – FG7SA Continued

**Model Number| ****Heating Input (Btuh)| ****Motor Speed| External Static Pressure (Inches Water Column)|
---|---|---|---|---
0.1| 0.2| 0.3| 0.4| 0.5| 0.6| 0.7| 0.8|
CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise**|

SA072( )-35C

Side +

Bottom

or 2 Sides

| ****

72,000

| High* Med-High

Med-Low**

Low

| 2050

1955

1365

1225

| –

–

| 1960

1870

1300

1170

| –

–

| 1880

1800

1260

1115

| –

–

| 1800

1715

1220

1075

| –

–

| 1710

1655

1175

1035

| –

–

| 1630

1575

1120

985

| –

–

| 1550

1485

1045

935

| –| 1460

1390

955

865

| 37

38

56

62

|
36

51

57

|
39

44

| 41

46

| 42

48

| 44

50

| 45

52

| 48

54

|
| | High*| 1940| –| 1860| 36| 1790| 37| 1710| 39| 1625| 41| 1540| 43| 1450| 46| 1355| 49|
SA090( )-35C

Bottom Return

| ****

90,000

| Med-High**

Med-Low

| 1820

1290

| 37

52

| 1760

1245

| 38

54

| 1695

1200

| 39

56

| 1620

1155

| 41

58

| 1545

1110

| 43

60

| 1466

1060

| 45

63

| 1380

995

| 48| 1280

915

| 52|
–| –|
| | Low| 1145| 58| 1110| 60| 1070| 62| 1035| 64| 1000| –| 950| –| 905| –| 835| –|
| | High*| 2020| –| 1935| –| 1860| 36| 1780| 37| 1690| 39| 1600| 42| 1510| 44| 1410| 47|
SA090( )-35C

Side Return

| ****

90,000

| Med-High**

Med-Low

| 1895

1345

| 35

50

| 1830

1295

| 36

51

| 1765

1250

| 38

53

| 1685

1200

| 40

56

| 1610

1155

| 41

58

| 1525

1100

| 44

61

| 1435

1035

| 46

64

| 1330

950

| 50|
–|
| | Low| 1190| 56| 1155| 58| 1115| 60| 1075| 62| 1040| 64| 980| –| 940| –| 870| –|

SA090( )-35C

Side +

Bottom

or 2 Sides

| ****

90,000

| High*

Med-High** Med-Low

Low

| 2040

1910

1355

1205

| –| 1955

1850

1310

1165

| –| 1880

1780

1260

1125

| 35

37

53

59

| 1795

1700

1215

1085

| 37

39

55

61

| 1705

1625

1165

1050

| 39

41

57

63

| 1620

1540

1115

1000

| 41

43

60

| 1525

1450

1050

950

| 44

46

63

| 1425

1345

960

875

| 47

50

|
35

49

55

| 36

51

57

|
–

–

|
–| –|
| | High*| 2205| 36| 2150| 37| 2095| 38| 2030| 39| 1970| 41| 1900| 42| 1830| 44| 1740| 46|
SA108( )-35C

Bottom Return

| ****

108,000

| Med-High**

Med-Low

| 2050

1700

| 39

47

| 1995

1680

| 40

48

| 1955

1645

| 41

49

| 1895

1610

| 42

50

| 1840

1565

| 43

51

| 1775

1525

| 45

52

| 1700

1460

| 47

55

| 1610

1375

| 50

58

|
| | Low| 1390| 58| 1370| 58| 1355| 59| 1320| 61| 1300| 62| 1270| 63| 1225| 65| 1175| –|
| | High*| 2295| 35| 2235| 36| 2180| 37| 2110| 38| 2050| 39| 1975| 41| 1900| 42| 1810| 44|
SA108( )-35C

Side Return

| ****

108,000

| Med-High**

Med-Low

| 2130

1770

| 38

45

| 2075

1750

| 39

46

| 2035

1710

| 39

47

| 1970

1675

| 41

48

| 1915

1630

| 42

49

| 1845

1585

| 43

50

| 1765

1520

| 45

53

| 1675

1430

| 48

56

|
| | Low| 1445| 55| 1425| 56| 1410| 57| 1375| 58| 1350| 59| 1320| 61| 1275| 63| 1225| 65|
| | High*| 2315| 35| 2260| 35| 2200| 36| 2130| 38| 2070| 39| 1995| 40| 1925| 42| 1825| 44|
SA108( )-35C

Side + Bottom

| ****

108,000

| Med-High** Med-Low| 2155

1785

| 37

45

| 2095

1765

| 38

45

| 2055

1725

| 39

46

| 1990

1690

| 40

47

| 1930

1645

| 41

49

| 1865

1600

| 43

50

| 1785

1535

| 45

52

| 1690

1445

| 47

55

|
or 2 Sides| | Low| 1460| 55| 1440| 56| 1425| 56| 1385| 58| 1365| 59| 1335| 60| 1285| 62| 1235| 65|
| | High*| 2255| 41| 2200| 42| 2125| 44| 2065| 45| 2010| 46| 1935| 48| 1855| 50| 1755| 53|
SA126( )-45D

Bottom only or 2 openings

| ****

126,000

| Med-High**

Med-Low

| 2075

1720

| 45

54

| 2025

1695

| 46

55

| 1970

1655

| 47

56

| 1940

1630

| 48

57

| 1875

1580

| 50

59

| 1810

1520

| 52

61

| 1750

1455

| 53

64

| 1680

1390

| 56

67

|
–| 1310| –| 1300| –| 1260| –| 1230| –|
| | Low| 1360| 69| 1375| 68| 1365| 68| 1315|
| | High*| 2230| 42| 2180| 43| 2105| 44| 2045| 46| 1990| 47| 1915| 49| 1835| 51| 1740| 54|
SA126( )-45D

Side Return

| ****

126,000

| Med-High**

Med-Low

| 2055

1705

| 45

55

| 2005

1680

| 47

56

| 1950

1640

| 48

57

| 1920

1615

| 49

58

| 1855

1565

| 50

60

| 1790

1505

| 52

62

| 1735

1440

| 54

65

| 1665

1375

| 56

68

|
| | Low| 1345| 69| 1360| 69| 1350| 69| 1300| –| 1230| –| 1290| –| 1250| –| 1220| –|

( ) Can be C or N

• Factory Set Cooling Speed ** Factory Set Heating Speed

NOTES

1. Two openings are required for airflows above 1600 CFM if filter(s) is(are) adjacent to furnace.
2. Temperature rises in the table are approximate. Actual temperature rises may vary.
3. Temperature rises shaded in gray are not recommended.

BLOWER PERFORMANCE – FG7SA Continued

Model Number

| ****

Heating Input (Btuh)

| ****

Motor Speed

| External Static Pressure (Inches Water Column)|
---|---|---|---|---
0.1| 0.2| 0.3| 0.4| 0.5| 0.6| 0.7| 0.8|
CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise| CFM| Rise|

SK054( )-23A

| ****

54,000

| High* Med-High

Med-Low**

Low

| 1375

1155

790

650

| 29

35

51

| 1340

1130

775

640

| 30

35

52

| 1300

1110

765

630

| 31

36

52

| 1270

1085

750

610

| 31

37

53

| 1225

1055

730

590

| 33

38

55

| 1175

1015

700

565

| 34

39

| 1115

975

665

530

| 36

41

| 1035

910

610

480

| 39

44

|
–

–

| –

–

| –

–

|
–| –| –| –| –|

SK072( )-24B

| ****

72,000

| High* Med-High

Med-Low**

Low

| 1610

1295

1155

910

| 33

41

46

59

| 1590

1275

1135

885

| 34

42

47

60

| 1575

1260

1115

860

| 34

42

48

| 1560

1250

1095

835

| 34

43

49

| 1540

1220

1065

810

| 35

44

50

| 1495

1195

1040

785

| 36

45

51

| 1460

1170

1015

765

| 37

46

53

| 1415

1120

980

735

| 38

48

54

|
–| –| –| –| –| –|

SK090( )-24B

| ****

90,000

| High* Med-High

Med-Low**

Low

| 1675

1330

1180

940

| 40

50

56

| 1655

1315

1165

925

| 40

51

57

| 1640

1300

1150

900

| 41

51

58

| 1620

1280

1135

880

| 41

52

59

| 1590

1255

1115

850

| 42

53

60

| 1560

1230

1090

825

| 43

54

61

| 1520

1200

1060

795

| 44

56

63

| 1475

1150

1010

760

| 45

58

66

|
–| –| –| –| –| –| –| –|

SK108( )-35C

| ****

108,000

| High* Med-High

Med-Low**

Low

| 2395

2190

1785

1145

| 33

37

45

| 2335

2135

1770

1110

| 34

37

45

| 2285

2115

1740

1070

| 35

38

46

| 2230

2080

1725

1035

| 36

38

46

| 2200

2030

1685

1000

| 36

39

47

| 2140

1975

1645

950

| 37

41

49

| 2080

1915

1615

905

| 38

42

50

| 2000

1810

1565

835

| 40

44

51

|
–| –| –| –| –| –| –| –|

SK126( )-45D

| ****

126,000

| High* Med-High

Med-Low**

Low

| 2445

2195

1795

1480

| 38

43

52

63

| 2395

2170

1780

1475

| 39

43

52

63

| 2385

2140

1770

1450

| 39

44

53

64

| 2330

2120

1760

1440

| 40

44

53

65

| 2275

2090

1725

1440

| 41

45

54

65

| 2225

2030

1690

1415

| 42

46

55

| 2130

1975

1655

1405

| 44

47

56

| 2015

1855

1610

1375

| 46

50

58

|
–| –| –|

( ) Can be C or N

• Factory Set Cooling Speed ** Factory Set Heating Speed

  1.  Temperature rises in the table are approximate. Actual temperature rises may vary.
  2. Temperature rises shaded in gray are not recommended.

MODEL IDENTIFICATION CODE

SPECIFICATIONS

FG7SA MODEL NUMBERS| -045-23A| -054-23A| -072-24B| -090-24B| -072-35C| -090-35C| -108-35C| -126-45D
---|---|---|---|---|---|---|---|---
Input – Btuh (a)| 45,000| 54,000| 72,000| 90,000| 72,000| 90,000| 108,000| 126,000
Heating Capacity – Btuh| 36,000| 43,200| 57,600| 72,000| 57,600| 72,000| 86,400| 100,800
AFUE| 80.0| 80.0| 80.0| 80.0| 80.0| 80.0| 80.0| 80.0
Motor H.P. – Speed – Type| 1/3 – 4 – PSC| 1/3 – 4 – PSC| 1/2 – 4 – PSC| 1/2 – 4 – PSC| 1/2 – 4 – PSC| 1/2 – 4 – PSC| 1.0 – 4 – PSC| 1.0 – 4 – PSC
Motor FLA| 4.80| 4.80| 8.20| 8.20| 7.50| 7.50| 13.75| 13.75
Rated Ext. SP – In. W.C.| 0.5| 0.5| 0.5| 0.5| 0.5| 0.5| 0.5| 0.5
Temperature Rise Range – ºF| 30-60| 30-60| 35-65| 35-65| 35-65| 35-65| 40-70| 40-70
Shipping Weights| 100lbs| 100lbs| 110lbs| 115lbs| 115lbs| 120lbs| 125lbs| 145lbs
SKU| 905004F| 905005F| 904989F| 905006F| 905007F| 905008F| 905009F| 905010F
FG7SK MODEL NUMBERS| -054-23A| -072-24B| -090-24B| -108-35C| -126-45D
---|---|---|---|---|---
Input – Btuh (a)| 54,000| 72,000| 90,000| 108,000| 126,000
Heating Capacity – Btuh| 43,200| 57,600| 72,000| 86,400| 100,800
AFUE| 80.0| 80.0| 80.0| 80.0| 80.0
Motor H.P. – Speed – Type| 1/3 – 4 – PSC| 1/2 – 4 – PSC| 1/2 – 4 – PSC| 3/4 – 4 – PSC| 1.0 – 4 -PSC
Motor FLA| 4.80| 8.20| 8.20| 13.75| 13.75
Rated Ext. SP – In. W.C.| 0.5| 0.5| 0.5| 0.5| 0.5
Temperature Rise Range – ºF| 30-60| 35-65| 35-65| 40-70| 40-70
Shipping Weights| 100lbs| 110lbs| 115lbs| 125lbs| 145lbs
SKU| 905011F| 905012F| 905013F| 905014F| 905015F

ACCESSORIES

FG7S (A, K) KITS

Description| SKU
“A” Cabinet fixed speed, high efficiency, FSHE| 904872
“B” Cabinet fixed speed, high efficiency, FSHE| 904873
“C” Cabinet fixed speed, high efficiency, FSHE| 904874
“D” Cabinet fixed speed, high efficiency, FSHE| 904875
“A” Cabinet variable speed, high efficiency, VSHE| 904876
“B” Cabinet variable speed, high efficiency, VSHE| 904877
“C” Cabinet variable speed, high efficiency, VSHE| 904878
“D” Cabinet variable speed, high efficiency, VSHE| 904879
“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.) and High Altitude LP| 905028
Canada LP Conversion kit (0 to 4,500 ft.) and High Altitude LP| 905029
Side return filter kit| 541036
Furnace Twinning Kit| 1010035

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 (03/2019)

• www.broanhvac.net

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

References

• TCPDF

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