Goodman - 4 Ton/100,000 BTU Gas Packaged Unit - 15.2 SEER2 - Two Stage - R32 - 230V - GPGM54810031
The Goodman GPGM54810031 is a gas heat and electric AC packaged unit, ready for any application where it is not convenient to have an indoor furnace or air handler. At 15.2 SEER2 and 81% AFUE, the GPGM54810031 is a high-efficiency packaged unit with a compact designed for rooftop and next-to-building applications.
Features
- 4 ton, 100,000 BTU packaged unit
- 15.2 SEER2, 81% AFUE
- Downflow or horizontal discharge installation options
- Fully charged and ready to install
- Low sound output
- Low NOx compliant
Specifications
| SKU |
GPGM54810031 |
| Weight (in lbs) |
655.000000 |
| AHRI Certificate Number |
209319570 |
| Brand/Manufacturer |
Goodman |
| Replaces |
GPG1648100M41 |
| Furnace Efficiency / AFUE |
80% |
| Cooling BTU |
45,500 BTU |
| Heating BTU |
100,000 BTU |
| Blower Motor |
Multi-Speed |
| Maximum CFM |
1300 |
| Decibel Level (dBA) |
78 decibels |
| Configuration |
Downflow/Horizontal |
| Energy Star |
Yes |
| Refrigerant |
R32 |
| SEER2 (Efficiency) |
15.2 |
| Condenser Stages |
Two Stage |
| Compressor Type |
Scroll |
| Electrical |
208 / 230 V. 1 Phase 60 Hz |
| Max Breaker Size |
50 amps |
| Tonnage |
4 Ton |
| Fuel Type |
Natural Gas |
| Height |
42 1/2" |
| Width |
47" |
| Depth |
51" |
Owner's Manual
GPGM5 Specifications Sheet
What our Experts Think
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Complete packaged solution: The Goodman 4 Ton Gas Packaged Unit (GPGM54810031) delivers both cooling and gas heat in one outdoor cabinet, eliminating the need for a separate indoor furnace or air handler — ideal for installations where space or duct layout limits split systems.
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High seasonal efficiency: With a 15.2 SEER2 cooling rating and ~81 % AFUE heating efficiency, it balances strong summer performance with reliable winter warmth, helping reduce overall utility costs compared to older or lower‑efficiency models.
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Two‑stage performance: The two‑stage compressor and gas furnace modulate output based on demand, improving comfort consistency, reducing cycling, and often lowering noise and energy waste versus single‑stage units.
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Modern refrigerant & airflow: Factory‑charged with eco‑friendly R‑32 refrigerant and equipped with a variable‑speed ECM blower motor, this unit supports smoother airflow, better humidity control, and compliance with current regulatory standards.
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Installation flexibility: Designed for horizontal or downflow configuration, the GPGM54810031 fits rooftop, slab‑side, or ground locations, giving installers flexibility for a range of properties.
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Durable construction & sound control: Heavy‑gauge, insulated steel cabinet and quality internal components help reduce operating noise and stand up to outdoor elements, contributing to long‑lasting performance.
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Strong warranty support: Goodman backs this unit with competitive warranty coverage — typically 10 year parts + 20 year heat exchanger protection with registration — providing homeowners confidence in long‑term ownership.
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Good value packaged HVAC choice: Experts see this model as a well‑rounded, value‑driven packaged unit that combines modern efficiency, two‑stage comfort control, and installation ease for homes or light commercial applications needing a single‑unit heating/cooling solution.
Q&A
Q: What type of HVAC system is the Goodman GPGM54810031?
A: The GPGM54810031 is a 4-ton gas packaged unit, combining heating and cooling in a single outdoor unit, ideal for homes or commercial spaces where indoor air handlers are not feasible.
Q: What size space is suitable for this system?
A: A 4-ton unit (100,000 BTU heating) is suitable for larger homes or small commercial areas around 1,800–2,400 sq. ft., depending on insulation, layout, and climate conditions.
Q: How energy efficient is this system?
A: This packaged unit delivers 15.2 SEER2 cooling efficiency with two-stage gas heating, offering energy savings, more precise temperature control, and improved comfort compared to single-stage units.
Q: What refrigerant does this unit use?
A: The unit uses R‑32 refrigerant, a modern, environmentally-friendly refrigerant that enhances efficiency and reduces greenhouse gas impact.
Q: Is this a single-stage or multi-stage system?
A: The GPGM54810031 is a two-stage system, providing high-efficiency operation by adjusting output to match heating and cooling demand for better comfort and energy savings.
Q: What electrical requirements does this system have?
A: The unit operates on 230V single-phase power, standard for residential and light commercial installations.
Maintenance Tips
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Replace air filters every 1–3 months: Maintains airflow, protects the blower, and improves indoor air quality.
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Keep the unit exterior clear: Maintain 2–3 ft clearance and remove leaves, debris, or grass to ensure proper airflow and peak efficiency.
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Inspect evaporator coil and condensate pan: Check periodically for dust, dirt, or clogs to prevent water leaks and maintain cooling performance.
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Check refrigerant line insulation: Ensure suction line insulation is intact to maintain energy efficiency.
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Keep vents and registers unobstructed: Ensures balanced airflow and consistent comfort throughout your space.
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Schedule annual professional service: A certified HVAC technician should inspect the heat exchanger, blower motor, refrigerant levels, and two-stage system controls yearly.
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Maintain clear surrounding space: Keep the area around the packaged unit free of clutter for safe operation and optimal airflow.
Damage 
Loss 
Theft 
