GOODMAN 3 Ton Cased Up-flow/Down-flow Evaporator Coil with Factory-Installed TXV (R-32) CAPTA3626B3

The Goodman CAPTA3626B3 is a high-performance, all-aluminum cased evaporator coil designed for residential split-system air conditioners and heat pumps using R-32 refrigerant. It features the AlumaFin7™ design, a factory-installed thermal expansion valve (TXV), and a compact 17.5-inch wide cabinet for reliable cooling and efficient heat transfer in upflow or downflow installations.

Dimensions

• Width: 17.5 inches (cabinet/chassis size B)
• Depth: 21 inches
• Height: 26 inches
• Approximate weight: 33–48 lbs (shipping weight varies by source; typically around 46–53 lbs)

Key Features

• All-aluminum construction (tubing, fins, and end plates) with AlumaFin7™ technology and grooved/rifled tubing for enhanced heat transfer
• Factory-installed TXV optimized for cooling and heat pump applications
• Optimized refrigerant circuits and manifolds specifically for R-32 (A2L compliant)
• Integrated R-32 sensor designed for the lifespan of the coil
• Foil-faced insulation on the internal casing to minimize condensation
• Galvanized steel cabinet with leather grain-embossed finish (painted/architectural gray)
• Rust-resistant, UV-resistant, DecaBDE-free thermoplastic drain pan with low water-retention design, primary and secondary drain connections (typically ¾” FPT), and repositionable rails for easier service
• Single front access panel for simplified maintenance
• Standardized copper suction tube stub
• 21-inch depth for improved attic accessibility
• AHRI certified and ETL listed

Benefits

• Superior heat transfer and humidity removal for better comfort and efficiency
• Reduced cabinet condensation and corrosion resistance for longer service life
• Precise refrigerant metering via TXV helps maintain stable superheat/subcooling and supports higher SEER2 performance when properly matched
• Easier installation and servicing thanks to the compact depth, front access, and drain pan design
• Environmentally friendlier lower-GWP R-32 refrigerant compatibility (AIM Act compliant for A2L systems)
• Durable construction suitable for long-term residential use

Specifications

• Nominal capacity: 3.0 tons (36,000 BTU); suitable for 2–3 ton matched systems (some ratings list 2.5–3 ton range)
• Refrigerant: R-32 only (A2L); not for R-410A systems
• Configuration: Cased A-coil, upflow/downflow
• Metering device: Factory-installed TXV
• Liquid line connection: ⅜ inch
• Suction line connection: ⅞ inch
• Drain connections: Primary and secondary (typically ¾” FPT)
• Airflow: Designed for typical 3-ton airflow ranges (approx. 1,050–1,200+ CFM depending on match and static pressure)
• Warranty: 10-year limited parts warranty when registered within 60 days of installation (standard 5-year if unregistered); terms subject to manufacturer details

Compatibility

Designed for use with Goodman (and related Daikin/Amana) R-32 split-system air conditioners and heat pumps. It pairs with matching R-32 outdoor condensers/heat pumps and compatible furnaces or air handlers (especially those with 17.5-inch cabinets). Cross-brand use is limited to properly matched R-32 systems; it is not a direct drop-in for older R-410A coils. Always verify AHRI-matched combinations for certified efficiency ratings, proper airflow, and warranty coverage. Professional installation by a licensed HVAC technician is required, including any refrigerant detection system (RDS) considerations for R-32.

This Goodman coil is an excellent choice for new R-32 installations or system upgrades requiring a reliable, efficient 3-ton cased evaporator coil. Always consult the latest manufacturer specifications, installation manuals, and a qualified HVAC professional for system matching and local code compliance.