Goodman GR9S80 / GD9S80 Gas Furnace
Single-Stage, Multi-Speed ECM, Multi-Position
Heating Input: 40,000–120,000 BTU/H
AFUE: 80% AFUE
Key Features
Standard Features
- Heavy-duty aluminized-steel dual-diameter tubular heat exchanger
- Single-stage gas valve
- Durable Hot-surface igniter
- Quiet, single-speed draft induced blower
- Self-diagnostic control board
- Color-coded low-voltage terminals
- Multi-speed ECM blower motor
- California Low NOx emissions models available
- AHRI Certified; ETL Listed
Note: California Low NOx models cannot be installed in California's South Coast Air Quality Management District (SCAQMD) and San Joaquin Valley Air Pollution Control District (SJVAPCD).
Cabinet Features
- Installation Flexibility: GR9S80 for upflow, horizontal left or right; GD9S80 for downflow, horizontal left or right.
- Convenient left or right connection for gas and electrical service.
- Heavy-gauge steel cabinet with durable baked-enamel finish.
- Foil-faced insulated heat exchanger.
Nomenclature Breakdown
The model number indicates key features:
- G: Goodman® Brand
- R: Configuration (R = Upflow/Horizontal, D = Downflow/Horizontal)
- 9: Motor (Nine Speed ECM)
- S: Gas Valve (Single Stage)
- AFUE: 80, 92, 96, 97 (e.g., 80 = 80% AFUE)
- MBTU/H: Heating capacity (e.g., 060 = 60,000 BTU/h)
- Engineering: Major/Minor Revisions (A, B)
- NOx: Emissions rating (N, X, U)
- Cabinet Width: (A=14", B=17½", C=21", D=24½")
- Maximum CFM: (3=1200, 4=1600, 5=2000)
Product Specifications
The following tables detail the specifications for various GR9S80 and GD9S80 models.
GR9S80 Series Specifications
| Specification | GR9S80 0403A* | GR9S80 0603A* | GR9S80 0603B* | GR9S80 0604B* | GR9S80 0803B* | GR9S80 0804B* | GR9S80 0804C* | GR9S80 0805C* | GR9S80 1005C* | GR9S80 1205D* |
|---|---|---|---|---|---|---|---|---|---|---|
| Heating Capacity (Input)¹ | 40,000 | 60,000 | 60,000 | 60,000 | 80,000 | 80,000 | 80,000 | 80,000 | 100,000 | 120,000 |
| Natural Gas Output¹ | 32,000 | 48,000 | 48,000 | 48,000 | 64,000 | 64,000 | 64,000 | 64,000 | 80,000 | 96,000 |
| LP Gas Output | 32,000 | 48,000 | 48,000 | 48,000 | 64,000 | 64,000 | 64,000 | 64,000 | 80,000 | 96,000 |
| AFUE ² | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| Available AC @ 0.5" ESP | 3 | 3 | 3 | 4 | 3 | 4 | 4 | 5 | 5 | 5 |
| Temperature Rise Range (°F) | 25-55 | 20-50 | 20-50 | 20-50 | 35-65 | 35-65 | 35-65 | 35-65 | 35-65 | 40-70 |
| Circulator Blower Size (D x W) | 10" x 6" | 10" x 6" | 10" x 8" | 10" x 8" | 10" x 8" | 10" x 8" | 10" x 10" | 10" x 10" | 10" x 10" | 10" x 10" |
| Horsepower @1075 RPM | 0.5 | 0.5 | 0.5 | 0.75 | 0.5 | 0.75 | 0.75 | 0.75 | 0.75 | 1 |
| Speed | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Vent Diameter ³ | 4" | 4" | 4" | 4" | 4" | 4" | 4" | 4" | 4" | 4" |
| No. of Burners | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 6 |
| Min. Circuit Ampacity ⁴ | 7.7 | 7.7 | 7.7 | 11.3 | 7.7 | 11.3 | 11.3 | 11.3 | 11.3 | 14.3 |
| Max. Overcurrent Device (amps) ⁵ | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 25 |
| Ship Weight (LBS) | 86 | 90 | 100 | 108 | 116 | 120 | 132 | 132 | 132 | 132 |
¹ Natural Gas BTU/h; for altitudes 0-4500' above sea level, reduce input rating by 4% for each 1000' above 4500' altitude.
² DOE AFUE based upon Isolated Combustion System (ICS).
³ Vent and combustion air diameters may vary depending upon vent length. Refer to the latest editions of the National Fuel Gas Code NFPA 54/ANSI Z223.1 (in the USA) and the Canada National Standard of Canada, CAN/CSA B149.1 and CAN/CSA B142.2 (in Canada).
⁴ Minimum Circuit Ampacity = (1.25 x Circulator Blower Amps) + ID Blower amps. Wire size should be determined in accordance with National Electrical Codes. Extensive wire runs will require larger wire sizes.
⁵ Maximum Overcurrent Protection Device refers to maximum recommended fuse or circuit breaker size. May use fuses or HACR-type circuit breakers of the same size as noted.
GD9S80 Series Specifications
| Specification | GD9S80 0403A* | GD9S80 0603A* | GD9S80 0804B* | GD9S80 0805C* | GD9S80 1005C* |
|---|---|---|---|---|---|
| Heating Capacity (Input) ¹ | 40,000 | 60,000 | 80,000 | 80,000 | 100,000 |
| Natural Gas Output ¹ | 32,000 | 48,000 | 64,000 | 64,000 | 80,000 |
| LP Gas Output | 32,000 | 48,000 | 64,000 | 64,000 | 80,000 |
| AFUE ² | 80 | 80 | 80 | 80 | 80 |
| Available AC @ 0.5" ESP | 3 | 3 | 4 | 5 | 5 |
| Temperature Rise Range (°F) | 25-55 | 30-60 | 35-65 | 35-65 | 40-70 |
| Circulator Blower Size (D x W) | 10" X 6" | 10" X 6" | 10" X 8" | 10" X 10" | 10" X 10" |
| Horsepower @1075 RPM | 1/2 | 1/2 | 3/4 | 1 | 1 |
| Speed | 9 | 9 | 9 | 9 | 9 |
| Vent Diameter ³ | 4" | 4" | 4" | 4" | 4" |
| No. of Burners | 2 | 3 | 4 | 4 | 5 |
| Min. Circuit Ampacity ⁴ | 7.7 | 7.7 | 11.3 | 14.3 | 14.3 |
| Max. Overcurrent Device (amps) ⁵ | 15 | 15 | 15 | 25 | 25 |
| Ship Weight (LBS) | 90 | 94 | 107 | 115 | 115 |
¹ Natural Gas BTU/h; for altitudes 0-4500' above sea level, reduce input rating by 4% for each 1000' above 4500' altitude.
² DOE AFUE based upon Isolated Combustion System (ICS).
³ Vent and combustion air diameters may vary depending upon vent length. Refer to the latest editions of the National Fuel Gas Code NFPA 54/ANSI Z223.1 (in the USA) and the Canada National Standard of Canada, CAN/CSA B149.1 and CAN/CSA B142.2 (in Canada).
⁴ Minimum Circuit Ampacity = (1.25 x Circulator Blower Amps) + ID Blower amps. Wire size should be determined in accordance with National Electrical Codes. Extensive wire runs will require larger wire sizes.
⁵ Maximum Overcurrent Protection Device refers to maximum recommended fuse or circuit breaker size. May use fuses or HACR-type circuit breakers of the same size as noted.
Dimensions
The following diagrams illustrate the physical dimensions and clearance requirements for the GR9S80 and GD9S80 furnaces.
GR9S80 Dimensions
Diagram Description: Front view showing overall dimensions (A and B) and inlet/outlet locations. Side view showing depth and inlet/outlet locations.
| Model | A (Width) | B (Depth) |
|---|---|---|
| GR9S800403A* | 14" | 12½" |
| GR9S800603A* | 14" | 12½" |
| GR9S800603B* | 17½" | 16" |
| GR9S800604B* | 17½" | 16" |
| GR9S800803B* | 17½" | 16" |
| GR9S800804B* | 17½" | 16" |
| GR9S800804C* | 21" | 19½" |
| GR9S800805C* | 21" | 19½" |
| GR9S801005C* | 21" | 19½" |
| GR9S801205D* | 24½" | 23" |
GD9S80 Dimensions
Diagram Description: Front view showing overall dimensions (A and B) and inlet/outlet locations. Side view showing depth and inlet/outlet locations.
| Model | A (Width) | B (Depth) | Non-Combustible Floor Base |
|---|---|---|---|
| GD9S800403A* | 14" | 12½" | SBT14 |
| GD9S800603A* | 14" | 12½" | SBT14 |
| GD9S800804B* | 17½" | 16" | SBT17 |
| GD9S800805C* | 21" | 19½" | SBT17 |
| GD9S801005C* | 21" | 19½" | SBT21 |
Minimum Clearances to Combustible Materials
| Clearance | Sides | Rear | Front¹ | Vent SW² | Vent B² | Top |
|---|---|---|---|---|---|---|
| Distance | 1" | 0" | 3" | 6" | 1" | 1" |
¹ 24" clearance for serviceability recommended.
² Single Wall Vent (SW) to be used only as a connector. Refer to the latest editions of the National Fuel Gas Code NFPA 54/ANSI Z223.1 (in the USA) and the Canada National Standard of Canada, CAN/CSA B149.1 and CAN/CSA B142.2 (in Canada).
Airflow Data Summary
The document includes detailed fan and cooling airflow data tables for various models across different external static pressures and thermostat tap settings (F01-F09). These tables provide CFM (Cubic Feet per Minute) and Wattage information to help select appropriate operating parameters for optimal performance. Due to the extensive nature of this data, the full tables are not reproduced here. Please refer to the original document for precise airflow specifications.
The document also contains a "Temperature Rise Range Chart" which graphically illustrates the relationship between BTU/h output, CFM, and temperature rise, along with formulas for calculation.
Wiring Diagram
A comprehensive wiring diagram is provided, illustrating the electrical connections for the furnace. It details components such as the igniter, gas valve, pressure switches, limit controls, blower motor, transformer, and control board. The diagram includes wire color coding and terminal designations for proper installation and servicing. It also outlines error code status indicators displayed on the unit.
Important Safety Note: Always disconnect all power before servicing or installing this unit. Multiple power sources may be present. Failure to do so may cause property damage, personal injury, or death.
Accessories and Filter Sizes
Available Accessories
| Model | Description | GR9S80 0403A* | GR9S80 0603A* | GR9S80 0603B* | GR9S80 0604B* | GR9S80 0803B* | GR9S80 0804B* | GR9S80 0804C* | GR9S80 0805C* | GR9S80 1005C* | GR9S80 1205D* |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AFE18-60A | Fossil Fuel (Dual Fuel) Kit | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| HANG20 | High-Altitude Natural Gas Kit | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| LPM-31 | LP Conversion Kits W/ LP Switch | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| MVK-01 * | Masonry Vent Kit | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| MVK-02 * | Masonry Vent Kit (for 120k model only) | — | — | — | — | — | — | — | — | — | ✓ |
* Upflow applications only
GD9S80 Series Accessories
| Model | Description | GD9S80 0403A*B | GD9S80 0603A*B | GD9S80 0804B*B | GD9S80 0805C* | GD9S80 1005C*B |
|---|---|---|---|---|---|---|
| SBT14 | Downflow Sub-Base 14" | ✓ | ✓ | — | — | — |
| SBT17 | Downflow Sub-Base 17.5" | — | — | ✓ | ✓ | ✓ |
| SBT21 | Downflow Sub-Base 21" | — | — | — | — | ✓ |
| AFE18-60A | Fossil Fuel (Dual Fuel) Kit | ✓ | ✓ | ✓ | ✓ | ✓ |
| HANG20 | High-Altitude Natural Gas Kit | ✓ | ✓ | ✓ | ✓ | ✓ |
| LPM-31 | LP Conversion Kits W/ LP Switch | ✓ | ✓ | ✓ | ✓ | ✓ |
Minimum Filter Sizes
| Model # | Filter Size (in²) |
|---|---|
| GR9S80 0403A* | (1) 16 x 25 (Side) or (1) 14 x 24 (Bottom) |
| GR9S80 0603A* | (1) 16 x 25 (Side or Bottom) |
| GR9S80 0604B* | (1) 16 x 25 (Side or Bottom) |
| GR9S80 0804B* | (1) 16 x 25 (Side or Bottom) |
| GR9S80 0805C* | (2) 16 x 25 (Side) or (1) 20 x 25 (Bottom) |
| GR9S80 81005C* | (2) 16 x 25 (Side) or (1) 24 x 24 (Bottom) |
| GR9S80 1205D* | (2) 16 x 25 (Side) or (1) 24 x 24 (Bottom) |
| Model # | Filter Size (in²) |
|---|---|
| GD9S80 0403A* | (2) 10 x 20 or (1) 14 x 25 (Top Return) |
| GD9S80 0603A* | (2) 14 x 20 or (1) 16 x 25 (Top Return) |
| GD9S80 0804B* | (2) 14 x 20 or (1) 16 x 25 (Top Return) |
| GD9S80 0805C* | (2) 14 x 20 or (1) 20 x 25 (Top Return) |
| GD9S80 1005C* | (2) 14 x 20 or (1) 20 x 25 (Top Return) |
Note: Other size filters of equal or greater surface area may be used; filters may also be centrally located.
¹ Use 2 - 16 x 25 filters on side returns or 20 x 25 filter on bottom return if furnace is connected to a cooling unit over 4 tons nominal capacity.
Warranty and Certifications
Goodman furnaces are backed by limited warranties. For the most current warranty information, including the 99-Year Heat Exchanger Limited Warranty and 10-Year Parts Limited Warranty, customers should refer to the complete warranty details available from their local dealer or at www.goodmanmfg.com. Online registration may be required within 60 days of installation, with exceptions noted for certain regions.
These furnaces are AHRI Certified and ETL Listed, indicating compliance with industry standards for performance and safety.
The manufacturer, Daikin Comfort Technologies Manufacturing, Inc., is committed to quality and may update specifications without notice.
