Goodman 3.5 Ton Evaporator Coil – 24-1/2" Wide Uncased With TXV | R32 (CAUTA4230D3)
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Key features
- 3.5-ton capacity in a 24-1/2-inch wide uncased configuration
- Factory-installed TXV for precise refrigerant metering across varying loads
- R-32 refrigerant compatible, lower GWP than R-410A
- Uncased design allows installation inside existing air handler cabinets
- Aluminum or copper fin-and-tube construction typical of Goodman coil lineup
- Designed for vertical orientation; confirm orientation compatibility before ordering
About this system
The Goodman CAUTA4230D3 is a 3.5-ton uncased evaporator coil designed for R-32 refrigerant, built to a 24-1/2-inch cabinet width that fits a defined range of air handler and furnace configurations. The uncased design means the coil ships without a surrounding cabinet, which gives an experienced installer the ability to fit it inside an existing air handler or build a custom enclosure, but it also demands careful sealing work to prevent condensation and airflow bypass. The factory-installed TXV (thermostatic expansion valve) is a meaningful inclusion at this price point: it meters refrigerant more precisely than a fixed orifice, which helps efficiency hold up under varying load conditions and reduces the risk of liquid slugging at the compressor.
R-32 is the direction the HVAC industry is moving, and this coil reflects that shift. R-32 has a lower global warming potential than R-410A and generally allows slightly smaller refrigerant charges, which can reduce leak risk over time. However, R-32 is mildly flammable (classified A2L), so any service work requires a technician current on A2L handling procedures and the proper recovery equipment. That narrows your installer pool slightly compared to a standard R-410A coil. This coil is best matched with an R-32-compatible outdoor unit, and pairing decisions should be verified against Goodman’s published matchup tables to ensure proper AHRI certification and warranty coverage.
The CAUTA4230D3 is a competitively priced R-32 evaporator coil that does the core job well when matched correctly and installed by a technician familiar with A2L refrigerants. The included TXV adds real value at this price tier, but the uncased format and R-32 requirements mean this is not the simplest drop-in coil, and Goodman's documented history of evaporator coil leaks in its broader lineup is worth factoring into long-term cost estimates.
Overall score is the average of the five ratings above.
What we like
- Factory TXV included, improving efficiency and refrigerant control without added cost
- R-32 compatibility positions the system for longer-term regulatory viability
- Goodman pricing typically runs 15 to 25 percent below Trane, Carrier, and Lennox comparable coils
- Uncased design offers installation flexibility for retrofit and custom air handler applications
- Widely available through HVAC distributors, easing parts and replacement access
Trade-offs
- Evaporator coil leaks are a documented failure mode across Goodman's coil lineup, showing up in a meaningful share of owner reviews
- Uncased configuration requires precise field sealing; any bypass gap undermines efficiency and can cause moisture problems
- R-32 (A2L) refrigerant limits your installer and service technician options compared to R-410A equipment
- No efficiency rating (SEER2) applies to this coil alone; system efficiency depends entirely on the matched outdoor unit and air handler
What homeowners and pros say about Goodman
Homeowners who have gone the Goodman route often point to the upfront savings as the deciding factor, and that holds for coil-only purchases as well. Goodman’s Google dealer reviews average around 3.8 out of 5, where affordability is the praise that comes up most consistently. On the other side, ConsumerAffairs scores average roughly 2.5 out of 5, a complaint-skewed platform where the recurring pattern is repair costs climbing after about year seven. For an evaporator coil specifically, that tracks: coil leaks are one of Goodman’s named failure modes, appearing in a meaningful share of reviews across the brand’s coil lineup. That does not make this coil a bad choice, but it does make a solid installation and a regular maintenance schedule more important, not optional.
Technicians who work on Goodman equipment regularly tend to have a pragmatic view: the parts are widely available, the pricing is honest, and the system performs reasonably well when it is installed right. The documented weak points in Goodman’s broader lineup, including dual-run capacitor failures (typically a 300 to 600 dollar fix), coil leaks, and compressors that average 10 to 14 years rather than the 15 to 20 years seen on premium brands, are things a good tech will plan around rather than be surprised by. For the CAUTA4230D3 specifically, the R-32 refrigerant requirement adds a layer that not every shop is prepared for yet, so confirming A2L certification with your installer before purchase is a practical first step.
Sources: ConsumerAffairs Goodman owner reviews, AHRI Directory of Certified Product Performance, U.S. DOE appliance and equipment efficiency standards, Goodman product specification sheets.
How it compares
| Brand | Comparable model | SEER2 | Stage | Price position |
|---|---|---|---|---|
| Goodman | CAUTA4230D3 | N/A (coil only) | N/A | Value pick |
| Carrier | CNPVP series (cased, TXV-included coil) | N/A (coil only) | N/A | Priced noticeably higher than the Goodman, consistent with Carrier's premium brand positioning |
| Trane | Coil-Only series (Uncased, e.g., AAUFP coil line) | N/A (coil only) | N/A | Higher priced than the Goodman; Trane's brand premium reflects its stronger reliability reputation |
| Lennox | CH35 series evaporator coil | N/A (coil only) | N/A | Among the highest-priced coils in this tier; Lennox commands a significant premium over the Goodman |
Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.
Questions about this system
Does this coil come with a cabinet, or do I need to buy one separately?
This is an uncased coil, meaning no outer cabinet is included. It is designed to be installed inside an existing air handler cabinet or a separately purchased cased enclosure. Your installer will need to seal it carefully to prevent air bypass, which is critical for both efficiency and moisture control.
Can I pair this R-32 coil with my existing R-410A outdoor unit?
No. R-32 and R-410A are not interchangeable refrigerants and require matched, compatible equipment. You must pair this coil with an R-32-rated outdoor unit. Always verify the specific matchup through Goodman's AHRI-certified combination listings to maintain warranty coverage.
What does the TXV do, and why does it matter on an evaporator coil?
The thermostatic expansion valve controls how much refrigerant enters the coil based on actual load conditions, which improves efficiency and protects the compressor compared to a fixed orifice. Having it factory-installed saves on parts and labor cost at installation.
How concerned should I be about Goodman coil leaks?
Evaporator coil leaks are a documented failure mode in Goodman's lineup and appear in a meaningful share of owner reviews, often showing up after several years of use. Proper installation, a leak check at startup, and annual maintenance checks can catch issues early. It is worth asking your installer about their leak-testing procedure before they button up the system.
Is R-32 harder to service than R-410A, and will any HVAC tech be able to work on it?
R-32 is classified as an A2L mildly flammable refrigerant, which requires technicians to have specific training and compatible recovery equipment. Not every HVAC technician is currently certified or equipped for A2L work, so confirm your service provider's qualifications before committing to this equipment, especially if you live in a rural area with limited contractor options.
Specifications
| Cooling capacity | 3.5 Ton |
| Refrigerant | R-32 |