Goodman 3.5 Ton 21" Variable-Speed Multi-Position Air Handler with TXV & ComfortBridge R-32

Sized for homes that fall between standard 3-ton and 4-ton loads, the Goodman AMVT42CP1300 delivers 3.5 tons of capacity in a 21" cabinet. It carries the full variable-speed feature set — ComfortBridge diagnostics, constant CFM control, and precise TXV metering — for a comfort upgrade on mid-to-large homes.

Key features that matter in the field

• Variable-speed ECM blower motor holds constant CFM across a wide static pressure range
• ComfortBridge Technology with automatic airflow/tonnage configuration and Bluetooth diagnostics
• Internal factory-installed TXV for accurate refrigerant metering in cooling and heat pump modes
• All-aluminum evaporator coil with long-life R-32 sensor
• Adjustable low-CFM fan-only operation for efficient continuous circulation
• Rigid SmartFrame cabinet with repositionable coil mounting track
• Galvanized, embossed cabinet; DecaBDE-free drain pan with secondary drain
• Fault recall of the six most recent faults
• Multi-position: upflow, downflow, or horizontal

Regional readiness and important compatibility notes

• R-32 only — not compatible with R-410A systems
• Requires a matched R-32 outdoor unit sized to 3.5 tons for full warranty and ComfortBridge functionality
• Suited to homes in the ~1,800–2,100 sq ft range

Specs at a glance

• Tonnage: 3.5 Ton
• Cabinet Width: 21"
• Refrigerant: R-32
• Metering Device: Internal TXV
• Motor: Variable-Speed ECM
• Line Connections: 3/8" liquid, 3/4" suction
• Warranty: 10-year limited parts warranty with registration within 60 days
• AHRI Certified, ETL Listed

Why this matters for you A 3.5-ton coil often gets overlooked between standard 3- and 4-ton sizing, but for homes right on that line, the AMVT42CP1300 avoids over- or under-sizing the system — with the comfort and efficiency benefits of variable-speed operation built in.

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