Goodman - 3.5 Ton - 21" Width Upflow/Downflow Cased Evaporator Coil TXV - R32 - CAPTA4230C3
An AC or heat pump system is only as good as its evaporator coil. The Goodman CAPTA evaporator coils are designed with this simple thought in mind for its longevity, accessibility, and value as their other heating and cooling equipment. The advanced design and all-aluminum constriction of this coil improves its durability and heat transfer efficiency. The CAPTA series are cased A-Coils for use in Upflow/Downflow applications. These units include an internal TXV (thermostatic expansion valve), which is perfect for high-performance systems. Goodman pressure tests each coil twice prior to it leaving the factory. Whether you are replacing an old failing coil or installing a new system, you can choose Goodman's CAPTA units with confidence.
Features
- All-Aluminum Coil: Goodman's evaporator coils maximize surface area and optimize heat transfer for efficient comfort by using a reliable all-aluminum design complete with sine fins and grooved tubes.
- Internal Thermostatic Expansion Valve: Goodman's CAPTA units have a factory-installed internal thermostatic expansion valve, which streamlines installation and maintains ideal refrigerant flow for your system.
- Cabinet Durability: Providing superior longevity and efficiency, CAPTA units have a galvanized, embossed, and insulated cabinet that protects the coil and prevents air leakage.
- Condensate Management: Keeping your system sage and operational, the CAPTA units feature a foil-faced insulation to inhibit the formation of condensate and a rust-resistant, DecaBDE-free thermoplastic drain pan secondary drain connections. The drain pan is UV-resistant.
- R32 Compatibility: Complies with Clean Air Act New Refrigerant Requirements.
Specifications
| 3.5 Ton 21" Width Goodman Upflow/Downflow Cased Evaporator Coil - TXV - R32 |
| SKU |
CAPTA4230C3 |
| Weight (in lbs) |
66.000000 |
| Brand/Manufacturer |
Goodman |
| Configuration |
Upflow / Downflow |
| Refrigerant |
R32 |
| Liquid Line |
3/8" |
| Suction Line |
7/8" |
| Tonnage |
3.5 Ton |
| Style |
A-Coil |
| Certification |
ETL Listed, AHRI Certified |
| Height |
30" |
| Width |
21" |
| Depth |
21" |
Manual
What our Experts Think
-
Ideal for 3.5‑Ton Systems: Engineered for 42,000 BTU capacity, this coil pairs perfectly with 3.5‑ton split systems to deliver reliable cooling performance.
-
Factory‑Installed TXV for Precision: Thermal expansion valve (TXV) ensures precise refrigerant flow control, improving efficiency and reducing temperature swings.
-
Optimized for R‑32 Refrigerant: Built for R‑32 systems, offering improved heat transfer performance and better environmental impact than older refrigerants.
-
Upflow/Downflow Flexibility: 21″ width and versatile airflow design support both upflow and downflow installations—ideal for basements, closets, or utility rooms.
-
Durable Aluminum Coil Construction: Aluminum tube‑and‑fin coil provides strong corrosion resistance and consistent heat exchange for long‑term performance.
-
Moisture & Rust Protection: Foil‑faced insulation and corrosion‑resistant drain pan help manage condensate and protect internal components.
-
Service‑Friendly Access: Front access panels and standardized connections make installation and maintenance faster and easier.
Q&A
Q: What capacity and installation type is the Goodman CAPTA4230C3 evaporator coil?
A: The Goodman CAPTA4230C3 is a 3.5 Ton upflow/downflow cased evaporator coil ideal for residential HVAC split systems needing efficient indoor cooling and heat pump performance.
Q: What refrigerant does this coil support?
A: Designed to work with R‑32 refrigerant, supporting modern high‑efficiency air conditioner and heat pump systems.
Q: Does the CAPTA4230C3 include a metering device?
A: Yes — it includes a factory‑installed thermal expansion valve (TXV) for optimized refrigerant control in both cooling and heat pump modes.
Q: What are the key dimensions and construction features?
A: The coil features a 21″ width, 21″ depth, and 30″ height in a galvanized steel cased cabinet with foil‑faced insulation and rust‑resistant thermoplastic drain pans.
Q: What materials and performance features does it have?
A: It has an all‑aluminum evaporator coil for strong heat transfer and corrosion resistance, plus a built‑in R‑32 refrigerant leak sensor for added safety.
Q: What line sizes does this coil use?
A: Standard residential connections: 3/8″ liquid line and 7/8″ suction line sizes.
Q: What certifications and warranties are included?
A: The coil is AHRI certified and ETL listed, and typically backed by a 10‑year limited parts warranty when registered online.
Q: What applications is the CAPTA4230C3 best suited for?
A: Ideal for pairing with a compatible outdoor condenser and indoor blower or furnace in residential cooling and heat pump systems requiring flexible upflow or downflow installation.
Maintenance Tips
-
Replace or clean air filters every 1–3 months to maintain proper airflow and prevent dust buildup on the coil.
-
Inspect and clean the evaporator coil annually for efficient heat transfer and consistent cooling.
-
Keep the condensate drain pan and drain line clear to prevent clogs, water overflow, and mold growth.
-
Check refrigerant line connections (3/8" liquid, 7/8" suction) for leaks or damaged insulation.
-
Verify TXV operation to ensure proper refrigerant flow and system efficiency.
-
Inspect coil cabinet and insulation to prevent air leaks and condensation issues.
-
Maintain a clean surrounding area to reduce dust and moisture near the unit.
-
Schedule annual professional HVAC maintenance to inspect coil condition, refrigerant charge, and overall system performance.
Damage 
Loss 
Theft 
