Review
The Goodman 3-ton split system represents a mainstream choice in residential HVAC replacement. Positioned as a mid-tier offering, it combines proven Goodman manufacturing with specs that appeal to cost-conscious contractors and homeowners tired of aging equipment. The upflow A-coil configuration suits most residential installations, and Energy Star certification on both the cooling and heating sides suggests reasonable attention to efficiency during design.
Performance data reveals some pleasant surprises. The listed 15 SEER rating undershoots the actual 16 SEER2 cooling efficiency, delivering approximately 34,800 BTU of cooling capacity. The two-stage burner and 100,000 BTU heating output work together to modulate for comfort. Two-speed blower motor circulates air at up to 2,000 CFM, adapting to load conditions. The 80% AFUE furnace is adequate but not cutting-edge, missing opportunities that newer 90-95% AFUE equipment provides.
Pros & Cons
Pros
- 16 SEER2 cooling efficiency exceeds the advertised 15 SEER rating, delivering better-than-expected AC performance
- Two-stage gas burner allows modulated heating, reducing energy waste during mild weather operation
- High-efficiency multi-speed blower motor adjusts airflow dynamically for better comfort and lower runtime costs
- Energy Star certified across both heating and cooling functions
- A-coil upflow configuration fits most residential installations with standard ductwork
Cons
- 80% AFUE furnace efficiency is dated by modern standards, missing opportunities for 90%+ two-stage units
- Single-stage compressor cannot modulate cooling capacity, leading to higher energy consumption in mild conditions
- 73.5 dB noise level runs noticeably louder than premium variable-capacity systems during operation
Who Should Buy
Best For
Contractors replacing broken systems in existing homes and homeowners replacing 10-15 year old equipment in moderate climates where heating load is secondary. This system balances upfront cost with solid efficiency gains over original equipment.
Consider Alternatives If
Buyers in very cold climates needing aggressive heating, or those prioritizing minimal operating noise and maximum efficiency should explore variable-capacity or two-stage compressor options.
Installation
Installation requires standard refrigerant connections: 3/8 inch liquid line and 7/8 inch suction line with 3/4 inch insulation. The system needs 120V single-phase 60 Hz power with a 18.7 to 30 amp breaker. The furnace requires a metal exhaust flue and upflow/horizontal airflow orientation. Suction line tubing extends to 50 feet, offering flexibility in condenser placement. Most licensed installers complete setup in one working day.
Warranty & Reliability
Online Supply backs this system with a 10-year warranty upon registration. This is standard coverage for Goodman residential equipment and covers compressor, coil, and furnace components. Ten years provides reasonable peace of mind for most homeowners, though it trails premium manufacturers offering 12-15 year protections. Register immediately after installation to activate the full term.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 100,000 |
| Refrigerant | R410A |
| Electrical | 120 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73.5 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 30 amps |
| Min. Breaker Size | 18.7 amps |
| Tonnage | 3.5 Ton |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation Manual Goodman Specifications Goodman Parts Manual Goodman User Information Goodman Service Manual Goodman Technical Information Goodman Warranty You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here. |
| Configuration | Upflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | High Efficiency Multi-Speed |
| Maximum CFM | 2000 |
| Burner Stages | Two |
| Fuel Type | Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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