Literature Library FG7S 80 Percent AFUE High Efficiency Upflow Horizontal and Downflow Gas Furnaces Owner’s Manual

TECHNICAL
SPECIFICATIONS
Owner’s Manual FG7S (A and K Series)
High Efficiency Upflow/Horizontal and
Downflow Gas Furnaces
Induced Draft – 80+ AFUE
Input 45,000 – 126,000 Btuh

FG7S 80 Percent AFUE High Efficiency Upflow Horizontal and Downflow Gas

Furnaces

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 currentwarranty document or visit our consumer web site 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

• 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.
• LowBoy Height: Easy to applyin 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.
• Highstatic blowers: Allmodels equipped with high static blowers.
• 90 second cooling cycle blower-off delay (TDR): increases cooling performance when matched with a NORDYNE coil.
• Flexible categorylventing 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 directdrive blower: Designedto give a wide range of cooling capacities. Switches on PCB, provide ultra easy motor speed selection.
• LPconvertible: Simple burner orifice and regulator spring change for ease of convertibility.
• Diagnostic lights for easy troubleshooting without countingflashes: Dedicated light for flame signal strength and 2 lights in combination toindicate 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.

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

054-23A
072-24B| 17 1/2| 11 3/4| 15 7/8| 16 1/8
090-24B
072-35C| 21| 14| 19 3/8| 19 7/8
090-350
108-35C
126-45D| 24 1/2| 15 1/4| 22 7/8| 23 1/8

090-24B
108-35C| 21| 14| 19 3/8| 19 5/8
126-45D| 24 1/2| 15 1/4| 22 7/8| 23 1/8

BLOWER PERFORMANCE – FG7SA

()Canbe CorN

• Factory Set Cooling Speed
  Factory Set Heating Speed
  NOTES:**

  1. Temperature rises in the table are approximate. Actual temperature rises may vary.
  2. Temperature rises shaded in gray are for reference only. These conditions are not recommended.

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
BlowerDxW| 10 x 6| 10 x 6| 11x 8| 11 x8| 10 x 10| 10 x 10| 11 x10| 11 x10
Motor H.R. – 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 – °F| 30-60| 30-60| 35-65| 35-65| 35-65| 35-65| 40-70| 40-70
Shipping Weights| 100Ibs| 100Ibs| 110Ibs| 115Ibs| 115Ibs| 120Ibs| 125Ibs| 145Ibs
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
BlowerDxW| 10 x 6| 11 x 8| 11 x 8| 11 x 10| 11 x 10
Motor H.R – 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 – °F| 30-60| 35-65| 35-65| 40-70| 40-70
Shipping Weights| 100Ibs| 110Ibs| 115Ibs| 125Ibs| 145Ibs

ACCESSORIES

FGTS (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
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” 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.

NORDYNE 8000 Phoenix Parkway
I O’Fallon MO 63368-3827
Specifications and illustrations subject to change without notice and without incurring obligations.
Printed in U.S.A (03/2009)
213D-0309

References

• TCPDF

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