Review
The ACiQ 4-ton downflow system represents Goodman's solid middle-market positioning in residential HVAC. This unit combines a gas furnace with an air conditioning condenser in a single package, simplifying replacement installations for contractors. At the time of review, pricing reflects typical mid-range equipment costs without premium features. The downflow A-coil configuration suits basement or attic furnace placement in many homes, making it a practical choice for straightforward system swaps.
Performance metrics show 97% AFUE heating efficiency and 13 SEER cooling efficiency, both respectable standards that qualify for Energy Star recognition. The furnace generates 80,000 BTU heating output with a modulating burner that adjusts to actual heating demand, reducing on-off cycling. Cooling delivers 48,000 BTU through a reciprocating compressor operating on R454B refrigerant. The variable-speed ECM blower motor runs at up to 1,600 CFM, optimizing airflow while consuming less electricity than fixed-speed motors across different load conditions.
Pros & Cons
Pros
- 97% AFUE furnace efficiency with modulating burner stages minimizes fuel waste and cycling losses
- 13 SEER air conditioner qualifies for Energy Star, reducing cooling costs significantly
- Variable-speed ECM blower motor maintains consistent comfort while using less electricity than single-speed alternatives
- Modulating gas burner adapts to heating demand, improving comfort during partial-load operation
- 10-year parts warranty with online registration provides solid protection for mid-range equipment
Cons
- 5-ton cooling capacity exceeds the stated 4-ton system name, potentially causing confusion during replacement ordering
- 76 dB noise level is moderate to loud for outdoor condenser operation in noise-sensitive neighborhoods
- Single-stage cooling compressor cannot modulate, limiting efficiency at part-load compared to two-stage designs
Who Should Buy
Best For
Contractors and homeowners replacing 10-15 year old systems who prioritize measurable energy bill reduction and reliability over premium efficiency tiers. This works well in mixed-climate regions where heating and cooling both contribute substantially to annual operating costs.
Consider Alternatives If
Anyone needing cutting-edge 14+ SEER cooling efficiency, installations in noise-restricted areas, or systems with variable-capacity compressors for superior part-load performance.
Installation
Installation requires standard line sets with 3/8-inch liquid and 1 1/8-inch suction connections using sweat valve fittings. The downflow configuration needs adequate clearance below furnace discharge, typically 36 inches minimum. Plastic PVC exhaust flue is required with proper slope and outdoor termination. Electrical connection demands a 115V single-phase circuit with 26.3 to 45 amp capacity depending on local codes. Most HVAC contractors complete installation in one to two days for standard replacements.
Warranty & Reliability
Goodman provides 10 years parts coverage when registered online within 60 days of installation. This protects major components like compressor, heat exchanger, and blower motor but excludes refrigerant and labor costs. Online registration takes five minutes and significantly extends coverage compared to unregistered 5-year baseline. Coverage terms cover manufacturing defects, not installation errors or maintenance neglect.
Specifications
| SKU | ACIQ-48-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 48,000 |
| Heating BTU | 80,000 |
| Refrigerant | R454B |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 76 |
| Weight (in lbs) | 120.000000 |
| Feature | Spec |
| Replaces | GSX130483, GSX130484, GSX130485 |
| Energy Star | Yes |
| SEER1 (Efficiency) | 13 |
| Condenser Stages | Single Stage |
| Compressor Type | Reciprocating |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Liquid Valve Size | 3/8" |
| Max Breaker Size | 45 amps |
| Min. Breaker Size | 26.3 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation Instructions 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 | Downflow/Horizontal |
| Style | A-Coil |
| AHRI Certificate Number | 7424271 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Flue Location | Right |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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