Review
The ACiQ 1.5 ton vertical uncased coil occupies a practical middle ground in the residential HVAC market. With 18,000 BTU capacity and 14 SEER efficiency, it targets contractors and homeowners who need capable cooling without paying for premium variable-stage compressors. The R454B refrigerant reflects current environmental standards, making this coil relevant for new installations and systems being converted from older refrigerants.
Performance specs show a single-stage rotary compressor operating at 208/230V single phase, drawing between 12 and 30 amps depending on configuration. The 71 dB noise level sits at typical single-stage residential standards. Line sizing accommodates both 3/8 inch liquid connections and 3/4 inch suction lines with matching 3/4 inch insulation thickness, supporting 50 feet of refrigerant line length without performance degradation.
Pros & Cons
Pros
- R454B refrigerant future-proofs the system against regulatory phase-outs affecting older R410A equipment
- 14 SEER efficiency rating balances performance with affordability, beating many 13 SEER alternatives
- Flexible 3/8 inch and 3/4 inch line sizes accommodate various existing ductwork configurations
- Single-stage rotary compressor is proven reliable in residential applications with simpler maintenance
- 10-year warranty with online registration provides solid coverage for residential use
Cons
- Not Energy Star certified, meaning it misses utility rebates available to higher-efficiency models
- 71 dB operating noise is moderately loud compared to variable-stage alternatives in quieter neighborhoods
- SKU confusion shows this as 3 ton tonnage in specs while marketed as 1.5 ton, raising questions about data accuracy
Who Should Buy
Best For
Contractors performing mid-range residential replacements where budget constraints matter and homeowners want to avoid 18,000 BTU single-stage systems. This works well for homes with space limitations where vertical coil orientation is necessary and R454B compatibility is desired.
Consider Alternatives If
Buyers seeking Energy Star rebates, those prioritizing whisper-quiet operation, or anyone needing variable-speed efficiency for peak summer cooling in extremely hot climates.
Installation
The 17.5 inch vertical A-coil design fits tight spaces between joists or in compact mechanical closets. Upflow and downflow configurations provide flexibility for both basement and attic installations. Standard 3/8 and 3/4 inch line connections work with existing copper runs. Contractors should verify voltage availability before ordering, as single-phase 208/230V requirements may need electrician approval in some installations.
Warranty & Reliability
Ten years of parts coverage applies when registered online within 30 days of installation. The Goodman evaporator coil warranty specifically protects against manufacturing defects. This coverage applies to residential use only, providing solid peace of mind for homeowners but offering no commercial guarantees.
Specifications
| SKU | ACIQ-18-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 18,000 |
| Refrigerant | R454B |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 120.000000 |
| Feature | Spec |
| Energy Star | No |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Rotary |
| Liquid Line | 3/8" |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 30 amps |
| Min. Breaker Size | 12 amps |
| Tonnage | 3 Ton |
| Height | 19.5" |
| Width | 16.5" |
| Depth | 20 1/8" |
| Resources | CAUF Installation Manual CAUF 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 | Upflow / Downflow |
| Suction Line | 3/4" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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