Review
The ACiQ 4-ton downflow system combines a Goodman gas furnace and air conditioner into one competent package positioned between builder-grade and premium equipment. At $3,136, it occupies a practical middle ground for contractors and homeowners seeking straightforward efficiency gains without luxury pricing. The downflow A-coil configuration suits existing installations where ducts run below the unit, common in basement and crawl space setups across North America.
Performance metrics tell a solid story. The furnace achieves 96% AFUE, meaning 96 cents of every dollar spent on fuel becomes heat, versus roughly 78-90% for pre-2006 units. The air conditioner delivers 48,000 BTU cooling capacity with 14 SEER efficiency, factoring in the variable-speed ECM blower that adjusts fan speed based on demand. This two-stage burner design means your heating system won't blast full power constantly, preserving comfort and reducing cycling wear.
Pros & Cons
Pros
- 96% AFUE heating efficiency recovers nearly all fuel energy, reducing heating costs versus 80-90% units
- 14 SEER cooling beats baseline 13 SEER requirements and qualifies for some utility rebates
- Variable speed ECM blower motor maximizes comfort and reduces runtime electricity consumption
- Two-stage burner enables soft starts and better part-load efficiency during shoulder seasons
- 120,000 BTU output handles most 3,000 to 4,000 square foot homes, sized appropriately for 4-ton cooling
Cons
- 74 dB noise level runs louder than higher-end single-stage models, noticeable during operation
- Not Energy Star certified, missing potential rebate eligibility in some utility programs
- R454B refrigerant requires compatible evacuation equipment, adding service costs for HVAC technicians unfamiliar with newer blends
Who Should Buy
Best For
Homeowners replacing 15+ year old furnace-AC combos and contractors building value systems for budget-conscious customers. This unit works especially well in mixed climates where you need reliable heating and cooling without paying for premium efficiency tiers.
Consider Alternatives If
Buyers in California or other strict ENERGY STAR markets should verify rebate eligibility first, and those prioritizing ultra-quiet operation should audition units rated below 70 dB.
Installation
The downflow configuration requires vertical mounting with ducts positioned below, limiting placement options. Standard 208/230V single-phase electrical service supports the system, needing a 26.4 to 45 amp breaker depending on final setup. Lineset runs up to 30 feet, and the plastic PVC exhaust flue is less costly than metallic alternatives. Most installations take 6-10 hours for experienced crews.
Warranty & Reliability
Goodman backs this system with 10 years parts coverage when you register online within 60 days of purchase. Registration is essential, as claiming warranty without proof of registration defaults to 5 years. Labor coverage varies by dealer, so confirm those details before installation. This warranty period matches mid-tier competitors but lags high-end brands offering 15-year protection.
Specifications
| SKU | ACIQ-48-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 48,000 |
| Heating BTU | 120,000 |
| Refrigerant | R454B |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 74 |
| Weight (in lbs) | 120.000000 |
| Feature | Spec |
| Configuration | Downflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Tonnage | 4 Ton |
| Style | A-Coil |
| Height | 36.25" |
| Width | 35.5" |
| Depth | 35.5" |
| Resources | Goodman Installation Manual Goodman Specifications Goodman Brochure Goodman Warranty Information Goodman Service Instructions Goodman Kit Instructions Goodman Parts Manual 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. |
| AHRI Certificate Number | 7368845 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Energy Star | No |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 45 amps |
| Min. Breaker Size | 26.4 amps |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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