ACiQ 2 Ton Heat Pump AC Condenser | 18.6 SEER2 High Efficiency Extreme Heat Inverter R454B (ACIQ-24-HPD)
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Key features
- 18.6 SEER2 variable-speed inverter compressor for continuous capacity modulation
- R-454B refrigerant with low global warming potential, compliant with current and near-future regulations
- 2-ton (24,000 BTU nominal) cooling and heating capacity
- 12-year parts warranty included at purchase with no dealer markup required
- Sold direct through ACiQ/AC Direct, bypassing dealer margin
- Compatible with standard split-system air handlers; requires matched indoor unit for rated efficiency
About this system
The ACiQ ACIQ-24-HPD is a 2-ton, 18.6 SEER2 inverter-driven heat pump condenser that pairs R-454B refrigerant with variable-speed compression to deliver genuinely high-efficiency heating and cooling in a compact footprint. At 2 tons, it is sized for smaller homes, conditioned additions, or zones in the 700-to-1,000 square foot range, assuming average insulation and local climate. The inverter compressor modulates capacity continuously rather than cycling on and off at full blast, which translates to steadier indoor temperatures, lower electricity bills versus single-stage equipment, and quieter operation at partial load.
The 18.6 SEER2 rating places this unit in the upper tier of the mid-efficiency market, comfortably clearing federal minimums and competitive with name-brand inverter systems that typically carry a significant price premium. The shift to R-454B refrigerant is forward-looking: the A2L refrigerant has a much lower global warming potential than the R-410A it replaces and is now code-compliant in all U.S. regions, though it does require R-454B-certified technicians for service. This system is sold direct, which removes dealer markup and is a meaningful reason its price sits below comparably specified Carrier, Trane, or Lennox units, but it also means installation and ongoing service fall entirely on independent contractors rather than a brand-authorized dealer network.
The ACIQ-24-HPD delivers a legitimate 18.6 SEER2 inverter heat pump at a price that undercuts name brands by a meaningful margin, making it a strong choice for budget-conscious buyers who can source a qualified installer and accept that the brand's long-term reliability record is still being written. The 12-year warranty provides real financial protection, but the undisclosed manufacturing origin and direct-only sales model create service complications that name-brand systems avoid. For buyers willing to do some extra legwork finding an R-454B-certified contractor, the efficiency-to-price ratio is genuinely hard to beat at this tonnage.
Overall score is the average of the five ratings above.
What we like
- 18.6 SEER2 is competitive with premium inverter systems at a noticeably lower price point
- Variable-speed compressor delivers quieter, more consistent comfort than single- or two-stage units
- 12-year parts warranty ships standard without requiring dealer registration or markup
- R-454B refrigerant is future-proofed against tightening environmental regulations
- Early owner feedback consistently notes quiet operation and responsive customer support from ACiQ
Trade-offs
- Consumer Reports has not yet ranked ACiQ due to insufficient long-term data, so reliability is unproven beyond a few years in the field
- The actual manufacturer is not publicly disclosed, which complicates parts sourcing and cross-referencing service history if problems arise
- No factory-authorized dealer network means finding a qualified installer, especially one certified for R-454B, is entirely the buyer's responsibility
- As a newer brand, resale familiarity and contractor comfort with the product vary widely by region
What homeowners and pros say about ACiQ
Homeowners who have installed ACiQ inverter heat pumps in the past two years generally report satisfaction with quiet operation and steady comfort, and those who have needed support describe ACiQ’s direct customer service as accessible and responsive. Because the brand is relatively new to the market, Consumer Reports has not yet assigned it a reliability score, and that absence of independent long-term data is the most honest caution anyone can offer a prospective buyer. Early forum discussions and owner posts are largely positive, but two or three years of field experience is not the same as the decade-plus track record that underpins ratings for Carrier or Trane.
HVAC technicians working on ACiQ equipment encounter the same trade-offs contractors face with any direct-to-consumer brand: the hardware often impresses them on first inspection, but the undisclosed manufacturing origin makes parts cross-referencing harder when something goes wrong, and the lack of a factory dealer network means there is no escalation path beyond ACiQ’s own support line. The specific documented risks worth keeping in mind are the same ones that surface with any newer inverter system: inverter board and capacitor longevity over a 15-plus year lifespan is not yet established for this brand, coil integrity under real-world refrigerant cycling with R-454B is still accumulating field data, and compressor lifespan at the 10-to-15 year mark remains an open question. The 12-year parts warranty addresses these concerns financially, but only if parts availability holds over that period.
Sources: Consumer Reports heat pump ratings, HVACDirect on the ACiQ brand, AHRI Directory of Certified Product Performance, U.S. DOE appliance and equipment efficiency standards.
What it costs to run
At 18.6 SEER2, cooling this 2-ton system for a typical 1200-hour cooling season at the U.S. average electricity rate of $0.17/kWh works out to roughly $263 per year in cooling, about $102 less per year than a minimum-efficiency 13.4 SEER2 unit of the same size. Your real cost depends on your climate and local rate.
Method: (24,000 BTU/hr ÷ 18.6 SEER2) × 1200 hours ÷ 1000 × $0.17/kWh. Rate source: U.S. EIA average; cooling hours: moderate-climate estimate.
How it compares
| Brand | Comparable model | SEER2 | Stage | Price position |
|---|---|---|---|---|
| ACiQ | ACIQ-24-HPD | 18.6 | Variable | Value pick |
| Carrier | Infinity 24 (25VNA024) | 19.0 | Variable | Significantly higher than ACiQ; includes dealer network and authorized service |
| Trane | XV18 (4TWV8024) | 18.0 | Variable | Significantly higher than ACiQ; strong dealer and parts infrastructure |
| Lennox | XP21 (XP21-024) | 17.8 | Two-stage | Higher than ACiQ; established reliability data and dealer coverage |
Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.
Questions about this system
Will any HVAC contractor be able to install and service this unit, or do I need a specialist?
Any EPA 608-certified technician can handle the electrical and refrigerant work, but because this system uses R-454B, an A2L-certified contractor is required for refrigerant handling. R-454B certification is becoming more common, but you should confirm your installer is qualified before purchasing. ACiQ sells direct, so there is no factory dealer network to tap for referrals.
How does the 12-year warranty actually work when there is no dealer network?
ACiQ registers the warranty at purchase and handles claims directly. If a covered component fails within 12 years, you contact ACiQ, and they ship the replacement part. Labor is not covered, so you will need to pay your independent contractor to do the repair work. Keep your purchase documentation and installation records.
Is R-454B refrigerant significantly different to work with compared to R-410A?
R-454B is an A2L refrigerant, meaning it is mildly flammable at high concentrations. It is not dramatically more dangerous than R-410A in typical residential service, but it requires specific handling procedures, leak detection practices, and in some jurisdictions, permits. Contractors trained on R-410A need to complete A2L certification before working with it.
Who actually manufactures ACiQ equipment, and does it matter?
ACiQ is AC Direct's house brand and the actual OEM manufacturer has not been publicly disclosed. Forum speculation suggests a connection to the ICP and Carrier family of manufacturers, but this is unconfirmed. It matters primarily if a component fails and you are trying to source parts outside of ACiQ's own supply chain, since cross-referencing part numbers to a known platform is harder without confirmed manufacturing origin.
What indoor air handler or coil do I need to pair with this condenser to achieve the rated 18.6 SEER2?
To achieve the 18.6 SEER2 rating, you need to pair this condenser with a matched ACiQ indoor unit from a tested and rated combination. Using a mismatched or off-brand air handler can reduce system efficiency and may affect warranty coverage. Check ACiQ's published matched-system specifications or contact their support team to confirm the correct indoor unit for your application.
Specifications
| Cooling capacity | 2 Ton |
| Efficiency | 18.6 SEER2 |
| Refrigerant | R-454B |