Goodman GM9S80 Furnace Instruction Manual
Goodman GM9S80 Furnace
Goodman GM9S80 Furnace
Goodman GM9S80 Furnace
Goodman GM9S80 Furnace Instructions
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Goodman GM9S80 Furnace Specifications
| Model | Capacities (BTU/h) (Input / Out NG / Out LP) |
Blower Specs (AC Tons / Size / HP / Speeds) |
Electrical & Vent (MCA / Max Fuse / Vent Dia.) |
General Specs (AFUE / Temp Rise / Burners / Weight) |
|---|---|---|---|---|
| GM9S800403A | 40k / 32k / 32k | 3 Tons / 10"x6" / 0.5 HP / 9 spd | 8.7A / 15A / 4" | 80% / 25-55°F / 2 / 86 lbs |
| GM9S800603A | 60k / 48k / 48k | 3 Tons / 10"x6" / 0.5 HP / 9 spd | 8.7A / 15A / 4" | 80% / 20-50°F / 3 / 90 lbs |
| GM9S800603B | 60k / 48k / 48k | 3 Tons / 10"x8" / 0.5 HP / 9 spd | 8.7A / 15A / 4" | 80% / 20-50°F / 3 / 100 lbs |
| GM9S800604B | 60k / 48k / 48k | 4 Tons / 10"x8" / 0.75 HP / 9 spd | 12.45A / 15A / 4" | 80% / 20-50°F / 3 / 108 lbs |
| GM9S800803B | 80k / 64k / 64k | 3 Tons / 10"x8" / 0.5 HP / 9 spd | 8.7A / 15A / 4" | 80% / 35-65°F / 4 / 116 lbs |
| GM9S800804B | 80k / 64k / 64k | 4 Tons / 10"x8" / 0.75 HP / 9 spd | 12.45A / 15A / 4" | 80% / 35-65°F / 4 / 120 lbs |
| GM9S800804C | 80k / 64k / 64k | 4 Tons / 10"x10" / 0.75 HP / 9 spd | 12.45A / 15A / 4" | 80% / 35-65°F / 4 / 132 lbs |
| GM9S800805C | 80k / 64k / 64k | 5 Tons / 10"x10" / 0.75 HP / 9 spd | 12.45A / 15A / 4" | 80% / 35-65°F / 4 / 132 lbs |
| GM9S801005C | 100k / 80k / 80k | 5 Tons / 10"x10" / 0.75 HP / 9 spd | 12.45A / 15A / 4" | 80% / 35-65°F / 5 / 132 lbs |
| GM9S801205D | 120k / 96k / 96k | 5 Tons / 10"x10" / 1 HP / 9 spd | 15.3A / 20A / 4" | 80% / 40-70°F / 6 / 132 lbs |
Goodman GM9S80 Furnace Details
The Goodman GM9S80 Furnace is an 80% AFUE Ultra Low NOx gas furnace, specifically designed to meet the stringent 14Ng/J maximum NOx emission requirements of California's South Coast and San Joaquin Valley Air Pollution Control Districts. It exclusively uses natural gas and is approved for Category I venting. This model is primarily for residential heating but can also be adapted for specific non-industrial commercial uses like schools or retail stores, provided installation guidelines are strictly followed.
This furnace is equipped with a heavy-duty aluminized-steel dual-diameter tubular heat exchanger, ensuring efficient and reliable operation. Its construction also features a robust, heavy-gauge steel cabinet with a durable baked-enamel finish and foil-faced insulation, contributing to its longevity and performance. The inclusion of a multi-speed ECM blower motor allows for precise airflow control and quiet operation, enhancing overall system efficiency.
Key internal components include a single-stage gas valve and a durable hot-surface igniter for consistent ignition. A quiet, single-speed draft inducer ensures proper combustion and venting. The furnace's self-diagnostic control board, equipped with color-coded low-voltage terminals, simplifies troubleshooting by providing diagnostic information through an LED display.
Installation flexibility is a core feature, as the GM9S80 model supports upflow and horizontal left or right configurations. It offers convenient left or right connections for both gas and electrical service. Proper clearances to combustible materials are crucial, with specific requirements such as 1 inch on the sides, 0 inches at the rear, and 3 inches in front, along with specific vent and top clearances.
Safety is paramount, with built-in features like a blower door interlock switch that interrupts voltage when the door is opened. The manual emphasizes the importance of Electrostatic Discharge (ESD) precautions during installation and servicing to protect the integrated control module. Only qualified and trained personnel should install, adjust, or service this equipment to prevent property damage, personal injury, or even death.
The furnace requires a dedicated electrical circuit, proper grounding, and the use of correctly sized wiring. It is essential to supply adequate combustion and ventilation air, especially in modern, tightly sealed homes, often requiring outside air. Connections for accessories such as humidifiers and electronic air cleaners are readily available through dedicated relay terminals on the integrated control module.
Gas supply connections must adhere to strict guidelines, including using a ground joint union, a drip leg to trap debris, and a manual shutoff valve. All gas piping must be leak-tested with an approved soap solution, never an open flame. High-altitude installations require manifold pressure adjustments and combustion analysis to ensure optimal performance and safety.
Finally, the system demands a closed return duct system, properly sized ductwork, and filters. Filters are not included but are mandatory and must be inspected monthly and replaced when dirty to prevent efficiency loss, equipment damage, and potential fire hazards. The furnace is AHRI Certified and ETL Listed, affirming its adherence to industry standards for performance and safety.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Goodman GM9S80 Furnace, and we answer them below.
