Review
The ACiQ 4-ton dual-fuel system bridges the gap between budget equipment and premium offerings. Branded as a Goodman variant (replacing model GSZ140491), this unit combines a heat pump condenser with a gas furnace in one compact frame. Energy Star certification signals solid efficiency credentials. It's designed for upflow/horizontal installations common in homes with basement or crawlspace mechanical rooms. Weighing 120 lbs and measuring 34.5 inches tall, it fits standard equipment footprints without major ductwork modifications.
Performance specs reveal a balanced system: 46,000 BTU cooling capacity with 14 SEER efficiency, plus 80,000 BTU heating from two-stage gas burners at 80% AFUE. The scroll compressor operates on R454B refrigerant at single-stage capacity. Electrical requirements are modest, needing 120V single-phase power with a 26.4 to 40-amp breaker. The multi-speed blower reaches 2000 CFM maximum, providing flexibility for various ductwork configurations. Suction line insulation of 0.5 inches is adequate for moderate climates.
Pros & Cons
Pros
- 14 SEER cooling efficiency meets Energy Star standards, reducing summer electricity costs by 20-30% versus baseline units
- Two-stage gas burner provides flexible heating output, cutting fuel consumption during mild winter days
- 80,000 BTU heating capacity handles most residential zones without oversizing issues
- Scroll compressor delivers reliable operation with proven track record across ACiQ and Goodman platforms
- Multi-speed blower motor adjusts airflow from 0-2000 CFM, improving comfort during part-load conditions
Cons
- 80% AFUE is mid-range for gas furnaces; modern condensing units reach 95%+ AFUE but cost significantly more
- Single-stage cooling compressor cannot modulate capacity, leading to cycling on hot days versus continuous operation
- 74 dB noise level is moderately loud during operation, noticeable in quiet home environments
Who Should Buy
Best For
Homeowners in climates where winter heating costs are moderate and cooling is seasonal will see real savings. This system makes sense for those upgrading from 10-year-old equipment and wanting efficient dual-fuel capability without the expense of high-efficiency condensing furnaces.
Consider Alternatives If
Buyers in extremely cold climates should prioritize higher AFUE gas furnaces or consider cold-climate heat pumps. Those seeking quietest operation should look elsewhere given the 74 dB rating.
Installation
Installation requires standard HVAC connections: 3/8 inch liquid line and 1 1/8 inch insulated suction line, both using sweat valve connections. Upflow configuration suits basements and attics with gravity-assist airflow advantages. Metal exhaust flue is mandatory for the gas furnace section. Technicians should verify existing ductwork, electrical service, and gas line capacity before rough-in work begins. Proper refrigerant charging and burner calibration are critical for achieving rated efficiency.
Warranty & Reliability
ACiQ provides 10-year parts coverage with online registration, a solid mid-range warranty. Registration is essential, as it activates full coverage without this step, you lose years of protection. This duration matches most homeowner expectations for equipment lifespan. Compressor and sealed components typically carry the same 10-year term. Service labor is not covered, so budget for technician visits during repairs.
Specifications
| SKU | ACIQ-48-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 46,000 |
| Heating BTU | 80,000 |
| Refrigerant | R454B |
| Electrical | 120 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 74 |
| Weight (in lbs) | 120.000000 |
| Feature | Spec |
| Replaces | GSZ140491 |
| Product Features | Rebate Available |
| Energy Star | Yes |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 40 amps |
| Min. Breaker Size | 26.4 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation Manual Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User 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 | 1 1/8" |
| Style | A-Coil |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | Multi-Speed |
| Maximum CFM | 2000 |
| Burner Stages | Two |
| Fuel Type | Gas |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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