ACiQ 5 Ton Evaporator Coil | 21" Wide V-Coil w/ TXV | R454B (EVD5X61M21A)
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Key features
- 5-ton capacity with V-coil design for increased surface area in a 21-inch-wide cabinet
- Designed for R-454B refrigerant, an A2L low-GWP replacement for R-410A
- Factory-installed TXV metering device for precise refrigerant flow and improved system efficiency
- Compatible with upflow and horizontal air handler or furnace configurations
- ACiQ 12-year parts warranty included without dealer markup
- Sold direct, reducing cost versus dealer-distributed coil brands at comparable specifications
About this system
The ACiQ EVD5X61M21A is a 5-ton, 21-inch-wide V-coil evaporator coil designed for use with R-454B refrigerant, the lower-GWP A2L refrigerant that is replacing R-410A across the industry. The TXV (thermostatic expansion valve) metering device is included, which provides more precise refrigerant flow control than a fixed orifice and helps the matched outdoor unit operate closer to its rated efficiency. At 5 tons, this coil is sized for larger homes, typically in the 2,200 to 3,000 square foot range depending on climate and insulation, and the 21-inch cabinet width makes it a fit for medium-footprint air handler or furnace configurations where horizontal or upflow installation space is a real constraint.
This coil is a replacement or new-installation component, not a standalone comfort system. It must be matched with a compatible R-454B outdoor condensing unit and an appropriately sized air handler or furnace with a compatible cabinet opening. The V-coil geometry increases surface area within the 21-inch cabinet, which supports heat transfer efficiency and helps control static pressure drop across the coil. Buyers replacing an older R-410A system should confirm that all system components, including the line set and any existing metering devices, are compatible with R-454B before installation, as the new refrigerant has different pressure and handling requirements and requires certified A2L-trained technicians.
The EVD5X61M21A is a competitively priced R-454B evaporator coil that delivers a TXV and V-coil geometry at a cost well below comparable components from Carrier or Trane. The trade-off is that ACiQ is a newer brand with limited long-term reliability data, and the undisclosed manufacturing origin makes parts cross-referencing harder for service technicians. For cost-conscious buyers working with a trusted independent HVAC contractor, it is a reasonable choice; for those who prioritize brand-name parts support or have a dealer-serviced system, established alternatives are worth the premium.
Overall score is the average of the five ratings above.
What we like
- Lower price than name-brand coils at equivalent tonnage and refrigerant specification
- TXV included from the factory, not an add-on cost
- 12-year parts warranty without dealer markup inflating the price
- R-454B compatibility positions the system for current and near-future refrigerant regulations
- V-coil configuration supports efficient heat transfer within a constrained 21-inch cabinet width
Trade-offs
- ACiQ is a newer brand with no Consumer Reports reliability ranking and limited independent long-term coil performance data
- The actual manufacturer is not disclosed, which complicates parts sourcing and service history cross-referencing for technicians
- R-454B is an A2L refrigerant requiring specially certified technicians, which can limit your service contractor options depending on region
- Sold direct without a dealer network, so installation and warranty service depend entirely on the quality of your independent contractor
What homeowners and pros say about ACiQ
Homeowners who have installed ACiQ equipment generally report satisfaction with responsiveness from the direct-sales support team and with early operational performance. On independent contractor forums and HVAC community boards, the ACiQ brand draws cautious but not dismissive commentary. The unconfirmed connection to a major manufacturing family is frequently cited as a reason technicians feel comfortable recommending it as a budget alternative, though most are careful to note that cross-referencing parts is harder when the OEM label is not on the box. Consumer Reports has not yet assigned ACiQ a reliability score due to insufficient long-term field data, which is the honest ceiling on confidence at this point in the brand’s history.
For a coil-only component like the EVD5X61M21A, the specific failure modes most relevant to buyers are coil leaks at brazed joints and TXV calibration issues, both of which can surface within the first few years if installation quality is inconsistent. Because ACiQ is sold direct rather than through a dealer network, the installation contractor carries more of the accountability weight than in a traditional distribution model, and the quality of that contractor relationship matters more here than it would with a brand that has a dedicated local service infrastructure. The 12-year parts warranty is a genuine advantage, but it only pays off if your contractor can efficiently source the right components when a repair is needed.
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 | EVD5X61M21A | N/A (coil component only) | N/A (coil only, TXV metered) | Value pick |
| Carrier | Performance Series CNPVP6021ALA (or equivalent 5-ton TXV coil) | N/A (coil component only) | N/A (coil only, TXV metered) | Noticeably higher, sold through dealer network with markup |
| Trane | 4TXCB006DS3HCA (5-ton cased coil series) | N/A (coil component only) | N/A (coil only, TXV metered) | Higher, dealer-distributed with established parts network |
| Lennox | C33 Series 5-ton evaporator coil | N/A (coil component only) | N/A (coil only, TXV metered) | Comparable to Carrier and Trane, premium over 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 specifically for R-454B refrigerant, which has different pressure characteristics than R-410A and requires a matched R-454B-compatible outdoor condensing unit. Using it with an R-410A system risks improper operation, refrigerant leaks, and voided warranty coverage.
Do I need a specially certified technician to install this coil because of the R-454B refrigerant?
Yes. R-454B is classified as an A2L mildly flammable refrigerant, and many jurisdictions and manufacturers require technicians to complete additional A2L handling certification beyond a standard EPA 608 license. Verify that your contractor holds the appropriate certification before scheduling installation.
Is the TXV already installed on the coil, or do I need to buy it separately?
The TXV is factory-installed on the EVD5X61M21A, so no separate metering device purchase is required. Confirm with your contractor that the TXV is compatible with your specific outdoor unit's operating pressures and refrigerant charge requirements before startup.
What does the 12-year warranty actually cover, and are there registration requirements?
ACiQ offers a 12-year parts warranty, which is competitive with name-brand coil coverage. You should verify current registration requirements directly with ACiQ at the time of purchase, as warranty terms and any registration deadlines can change, and failing to register on time is a common reason claims are denied.
How hard is it to find replacement parts if this coil needs a repair down the road?
Because ACiQ does not publicly disclose its manufacturing parent, technicians cannot easily cross-reference parts to an OEM catalog the way they can with Carrier or Trane components. Parts are available through ACiQ directly, but if the brand's supply chain changes or the product line is discontinued, sourcing replacement components could become more difficult than with a major legacy brand.
Specifications
| Cooling capacity | 5 Ton |
| Refrigerant | R-454B |
| Model | EVD5X61M21A |