Review
The ACiQ 4-ton horizontal slab coil air conditioner occupies a practical middle ground in today's HVAC market. Designed as a direct replacement for older Goodman models (GSX130483, GSX130484, GSX130485), this unit employs R454B refrigerant and a straightforward reciprocating compressor. At 13 SEER, it meets current minimum efficiency standards without commanding premium pricing. This positions it squarely in the replacement and retrofit segment where contractors value compatibility and homeowners want reasonable upfront costs.
Performance specs show 48,000 BTU cooling capacity in a single-stage configuration, meaning full cooling output or nothing, without modulating capacity. The 76 dB noise level places it firmly in the standard range, audible from nearby outdoor areas but acceptable for most installations. Electrical requirements are straightforward: 208/230V single-phase 60Hz with breaker sizing between 26.3 and 45 amps. The horizontal slab design suits cramped attics and crawlspaces where vertical clearance is limited, though its 120-pound weight requires proper support.
Pros & Cons
Pros
- 48,000 BTU cooling capacity delivers consistent 4-ton performance across residential applications
- 13 SEER efficiency meets current minimum standards while keeping equipment costs competitive
- R454B refrigerant future-proofs against EPA phaseouts and suits modern HVAC systems
- Single-stage reciprocating compressor offers proven reliability with minimal maintenance requirements
- 10-year warranty with online registration provides solid long-term peace of mind
- Horizontal slab design accommodates tight attic spaces and crawlspace installations
Cons
- 76 dB noise level is moderately loud, comparable to older units and noticeably louder than variable-speed alternatives
- Not Energy Star certified, missing potential rebates and highest efficiency tier recognition
- Single-stage operation means no capacity modulation during mild weather, reducing efficiency in shoulder seasons
Who Should Buy
Best For
Contractors performing equipment replacements on existing Goodman systems, and homeowners in moderate climates prioritizing reliability over peak efficiency. Budget-conscious residential upgrades where R454B compatibility is required.
Consider Alternatives If
Buyers seeking Energy Star certification, homes in hot climates where higher SEER ratings would justify cost premium, or noise-sensitive installations near bedrooms.
Installation
Installation is straightforward for experienced technicians. Line sets use standard 3/8-inch liquid and 1 1/8-inch suction connections with sweat-type valves. Pre-insulated suction line with 1/2-inch thickness reduces field insulation requirements. The 50-foot line set length accommodates most residential placements. Horizontal configuration simplifies mounting in tight spaces, but technicians must verify proper condensate drainage and ensure adequate clearance for airflow.
Warranty & Reliability
Coverage extends 10 years from purchase when registered online, a solid protection period for residential use. This aligns with industry standards and protects against compressor failure, refrigerant loss, and component defects. Registration is required to activate full coverage, so buyers should complete this process immediately after installation.
Specifications
| SKU | ACIQ-48-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 48,000 |
| Refrigerant | R454B |
| Electrical | 208 / 230 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 | No |
| 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 | 25" |
| Width | 39.5" |
| Depth | 12" |
| Resources | CSCF Installation Manual CSCF Specifications Sheet Goodman Evaporator Coil 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 | Horizontal |
| Style | Slab |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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