ACiQ 4 Ton Evaporator Coil | 24" Wide V-Coil w/ TXV | R454B (EVD5X49M24A)
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Key features
- 4-ton capacity V-coil in a 24-inch wide cabinet for space-constrained installations
- Factory-installed TXV for active refrigerant metering and stable system performance
- R-454B refrigerant compatibility, meeting current low-GWP regulatory direction
- Designed for ducted split-system applications paired with a matched outdoor unit
- ACiQ 12-year parts warranty included with product registration
- Sold factory-direct, eliminating dealer markup on the coil itself
About this system
The ACiQ EVD5X49M24A is a 4-ton replacement evaporator coil built in a 24-inch wide V-coil configuration and pre-fitted with a thermal expansion valve (TXV). It is designed for use in ducted split systems and is charged for R-454B, the low-global-warming-potential refrigerant that is gradually replacing R-410A as the industry moves toward EPA Section 608 compliance. If your outdoor condensing unit is spec’d for R-454B, this coil is a direct-path replacement that avoids the cost of a full system swap.
The V-coil layout maximizes surface area within a compact cabinet footprint, which is useful in tight air handler or furnace closets where a horizontal or A-coil might not fit cleanly. The factory-installed TXV actively meters refrigerant flow in response to load changes rather than relying on a fixed orifice, which supports more stable suction pressure, better moisture removal, and less risk of slugging the compressor during partial-load conditions. At 4 tons, this coil is sized for homes roughly in the 2,000 to 2,600 square foot range, though actual sizing depends on Manual J load calculations for your specific structure and climate.
The ACiQ EVD5X49M24A is a competitively priced R-454B evaporator coil with a factory TXV and a strong 12-year warranty, making it a reasonable choice for cost-conscious replacement projects. The main trade-offs are the undisclosed manufacturing origin, which complicates parts sourcing, and the limited independent long-term reliability data that comes with any newer brand. Buyers who prioritize upfront cost savings and are comfortable with direct-buy service logistics will find the value proposition solid.
Overall score is the average of the five ratings above.
What we like
- Factory-installed TXV improves refrigerant metering versus fixed-orifice alternatives
- R-454B ready, which future-proofs the installation against R-410A phase-out regulations
- 24-inch wide V-coil design fits many existing air handler cabinets without modification
- 12-year parts warranty is longer than most comparably priced coil options
- Direct-to-consumer pricing removes dealer margin from the coil cost
Trade-offs
- Undisclosed manufacturer makes cross-referencing OEM parts and service bulletins harder for technicians
- No long-term independent reliability data exists yet; Consumer Reports has not ranked ACiQ
- Service depends on independent contractors, so support quality varies by region
- R-454B requires certified technicians with appropriate equipment, which can narrow your service pool
What homeowners and pros say about ACiQ
Homeowners who have installed ACiQ equipment generally describe the brand positively in early reviews, with quiet operation and responsive customer support cited most often. On the installer side, independent HVAC technicians report that the equipment arrives well-packaged and that the factory-installed TXV on coil models like this one saves time on the job. That said, contractors who lean on manufacturer technical lines or prefer to pull parts from a local distributor have flagged the undisclosed manufacturing origin as a real inconvenience, since it makes sourcing components or checking service advisories less straightforward than with a named brand.
Consumer Reports has not yet assigned ACiQ a reliability score due to insufficient long-term field data, which is the most honest summary of where the brand stands right now. The specific failure modes documented in the broader direct-buy HVAC category, including premature capacitor failure, coil leaks at fittings, and questions about compressor longevity in variable-speed systems, have not been independently confirmed as patterns in ACiQ equipment yet, but the brand is simply too new for those patterns to surface or be ruled out. For a coil-only component like the EVD5X49M24A, the mechanical risk profile is somewhat simpler than a full system, and the 12-year parts warranty provides a meaningful backstop while that long-term picture develops.
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 | EVD5X49M24A | N/A (coil only) | N/A (coil component) | Value pick |
| Carrier | Performance CNPVP Series (4-ton, R-454B) | N/A (coil only) | N/A (coil component) | Moderately higher, typically sold through authorized dealers with markup |
| Trane | Spine Fin 4TXCB Series (4-ton, R-454B) | N/A (coil only) | N/A (coil component) | Higher, available through Trane dealer network with regional pricing variation |
| Lennox | C35 Series (4-ton, R-454B compatible) | N/A (coil only) | N/A (coil component) | Higher, sold through Lennox dealer channel with dealer-set pricing |
Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.
Questions about this system
Will this coil work with my existing R-410A outdoor unit?
No. This coil is designed and rated for R-454B refrigerant, which operates at different pressures and has different oil requirements than R-410A. Mixing refrigerants or using this coil with an R-410A unit is unsafe and will void the warranty. You need a matched R-454B outdoor condensing unit.
Does the 24-inch width refer to the cabinet or the coil itself, and will it fit my current air handler?
The 24-inch measurement refers to the coil cabinet width. Before ordering, measure the interior width of your existing air handler or furnace cabinet and verify the model number against ACiQ's coil compatibility chart, since cabinet depth and height also matter for a clean fit.
Why does ACiQ not disclose who actually manufactures this coil?
ACiQ is AC Direct's house brand and the company has not publicly named its manufacturing partner, though forum discussion has pointed toward the ICP and Carrier family without confirmation. The practical effect is that technicians cannot easily look up OEM service bulletins or cross-reference parts by manufacturer number, which is worth discussing with your installer upfront.
Is the TXV pre-installed, or does my technician need to add one separately?
The TXV is factory-installed on this model, so your technician does not need to source or add one separately. That said, your installer should still verify the valve is properly matched to the refrigerant charge and outdoor unit capacity during commissioning.
What do I need to do to activate the 12-year warranty?
ACiQ requires product registration to unlock the full 12-year parts warranty, and the installation must be performed by a licensed HVAC technician. Keep a copy of the installation invoice and registration confirmation, as warranty claims will ask for both.
Specifications
| Cooling capacity | 4 Ton |
| Refrigerant | R-454B |
| Model | EVD5X49M24A |