ACiQ 4 Ton Evaporator Coil | 24.5"" Wide Multi-Positional A-Coil w/ TXV | R454B (EAM5X48M24A)
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Key features
- 4-ton capacity, sized for medium to large residential applications
- 24.5-inch wide cabinet fits standard air handler openings
- Multi-positional A-coil: upflow, downflow, or horizontal installation
- Factory-installed TXV for precise refrigerant metering across varying loads
- R-454B refrigerant compatibility, meeting post-2025 EPA low-GWP requirements
- 12-year parts warranty included with registration, no dealer markup
About this system
The ACiQ EAM5X48M24A is a 4-ton, multi-positional A-coil designed to work as the indoor half of a split-system air conditioner or heat pump. Its 24.5-inch cabinet width fits a standard air handler footprint, and the multi-positional design means it can be installed upflow, downflow, or horizontal, which covers most residential duct configurations without ordering a coil cut specifically for one orientation. The coil ships with a factory-installed thermostatic expansion valve, so refrigerant metering is handled precisely regardless of load conditions rather than relying on a fixed orifice.
This coil is rated for R-454B, the low-global-warming-potential refrigerant that is replacing R-410A across the industry under EPA rules that took effect in 2025. If you are pairing this coil with a new outdoor unit, that alignment matters: an R-454B coil cannot legally be charged with R-410A equipment going forward, so buyers should confirm the outdoor unit they are matching is also R-454B-rated. At 4 tons, this coil suits homes in roughly the 2,000 to 2,600 square foot range, though actual sizing depends on Manual J load calculations for the specific building. ACiQ positions this as a value option for homeowners and contractors who want a code-compliant, TXV-equipped coil without paying a premium brand’s price.
The ACiQ EAM5X48M24A delivers a code-compliant, TXV-equipped R-454B coil at a price point that undercuts most name-brand equivalents, making it a sensible choice for budget-conscious replacements or new installations. The value proposition is real, but buyers accept limited long-term reliability data and a disclosed-manufacturer ambiguity that can complicate service calls down the road. For straightforward installs with a trusted independent contractor, the trade-off is reasonable; for anyone who relies heavily on a dealer network for support, it deserves more scrutiny.
Overall score is the average of the five ratings above.
What we like
- R-454B ready, so the system is compliant with post-2025 refrigerant regulations out of the box
- Factory TXV improves efficiency matching versus fixed-orifice coils, especially at part-load conditions
- Multi-positional cabinet reduces inventory needs for contractors and simplifies residential installs
- 12-year parts warranty with no dealer markup is longer coverage than many name-brand coils at this price tier
- Lower purchase price than Carrier, Trane, or Lennox equivalent coils, keeping total system cost down
Trade-offs
- The actual manufacturer is not publicly disclosed, making cross-referencing OEM parts or service records harder than with a named brand
- Long-term reliability data is thin because ACiQ is a newer brand and Consumer Reports has not yet assigned it a reliability score
- Sold direct rather than through a dealer network, so service depends entirely on finding a willing independent contractor
- No standalone efficiency rating applies to the coil alone; system SEER2 depends entirely on the matched outdoor unit, requiring careful equipment pairing
What homeowners and pros say about ACiQ
Homeowners who have installed ACiQ equipment generally report satisfaction with the purchase price and note that the company’s direct-support line has been responsive when questions come up. Quiet operation and solid early performance come up repeatedly in owner feedback. That said, Consumer Reports has not yet ranked ACiQ because the brand is too new to have the long-term field data the organization requires before assigning a reliability score, and that absence of independent verification is a real consideration for anyone planning to stay in their home for 15 or more years. The specific failure modes most commonly flagged in the broader direct-to-consumer HVAC space, including capacitor failures, refrigerant coil leaks over time, and uncertainty about compressor lifespan on newer refrigerant blends, have not been documented at scale for ACiQ yet simply because the sample size and timeline are still limited.
Among independent HVAC contractors, the conversation around ACiQ often centers on the undisclosed manufacturer. Forum speculation connecting it to the ICP and Carrier family has circulated, but it remains unconfirmed, and that ambiguity matters when a tech is standing in front of a unit trying to source a replacement part through the usual distribution channels. Contractors who are comfortable working directly with ACiQ’s supply chain tend to be more willing to install and service the equipment; those who rely heavily on local supply houses for next-day parts may be more hesitant. For this specific coil, the R-454B refrigerant compatibility is straightforwardly practical rather than a brand differentiator, since all new coils entering the market are moving in that direction regardless of manufacturer.
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.
How it compares
| Brand | Comparable model | SEER2 | Stage | Price position |
|---|---|---|---|---|
| ACiQ | EAM5X48M24A | N/A (coil only) | N/A (coil only) | Value pick |
| Carrier | Infinity Series CNPVP4821ALA | N/A (coil only) | N/A (coil only) | Noticeably higher than ACiQ |
| Trane | 4TXCB004DS3HCA (Comfort series 4-ton A-coil) | N/A (coil only) | N/A (coil only) | Moderately higher than ACiQ |
| Lennox | CH35 series 4-ton multi-positional A-coil | N/A (coil only) | N/A (coil only) | Moderately to noticeably higher than ACiQ |
Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.
Questions about this system
Can I pair this coil with my existing R-410A outdoor unit?
No. This coil is designed and rated for R-454B refrigerant, which is not interchangeable with R-410A. Under EPA regulations effective 2025, new equipment must use a lower-GWP refrigerant like R-454B, so you would need to pair this coil with a new R-454B-compatible outdoor unit, not an older R-410A condenser.
Does the TXV come pre-installed or do I need to add it separately?
The thermostatic expansion valve ships factory-installed on this coil. Your installer does not need to source or add a separate TXV, which also avoids compatibility guesswork when matching the metering device to the coil.
What air handler brands will this coil fit or match with?
The 24.5-inch cabinet width is a common industry dimension, so the coil will physically fit most air handlers designed for that cabinet size. However, for a rated AHRI system efficiency match, the coil should be paired with equipment listed on ACiQ's certified combination list; mixing brands without an AHRI-matched pair may affect the SEER2 rating your system actually achieves.
How do I register for the 12-year warranty, and what does it actually cover?
Registration is done through ACiQ's website after installation. The 12-year coverage applies to parts; it does not cover labor costs, refrigerant, or consequential damages. Confirming registration deadlines and exact exclusions in the warranty document before install is worth doing, since labor is the largest cost in most coil replacement scenarios.
If a technician needs to replace a part, will they be able to find components for an ACiQ coil?
ACiQ parts are available through AC Direct's direct channel, but because the underlying manufacturer is not publicly disclosed, an independent tech cannot easily cross-reference the coil to an OEM parts catalog the way they could with a Carrier or Trane unit. This makes it more important to keep your documentation and work with a contractor comfortable sourcing through ACiQ directly.
Specifications
| Cooling capacity | 4 Ton |
| Refrigerant | R-454B |
| Model | EAM5X48M24A |