3.5 Ton Goodman R-410A Variable Speed Air Handler — AMVT42CP1400
The Goodman AMVT42CP1400 is a 3.5-ton (42,000 BTU/h) multi-position variable-speed air handler for R-410A residential cooling and heat pump systems. Housed in a 21-inch SmartFrame cabinet, it combines a 3/4 HP ECM blower, ComfortBridge communicating controls, and a factory-installed thermal expansion valve to deliver steady, efficient airflow for larger homes paired with a matched 3.5-ton outdoor unit.
Is a 3.5 Ton Air Handler the Right Size?
A 3.5-ton air handler supports roughly 42,000 BTU/h of cooling, generally matching homes in the range of about 1,600 to 2,000 square feet. The right capacity is determined by the matched outdoor unit and the home's calculated load, not floor area alone.
Duct capacity matters at this size: the AMVT42CP1400's higher nominal airflow needs properly sized return and supply ductwork to perform quietly and efficiently. Insulation, window load, ceiling height, climate, and the rated capacity of the matched condenser or heat pump all factor into whether 3.5 tons is correct for a given home.
Ideal for: 3.5-ton residential upflow, downflow, and horizontal installations with adequate duct capacity and a matched R-410A condenser or heat pump.
Smaller system? Step down to the 2.5-ton Goodman AMVT30BP1400 variable-speed air handler, or browse the current-generation R-32 AMVT variable-speed air handlers.
Recommended sizing is a general guideline only. Actual requirements depend on insulation, climate, duct design, window load, and the matched outdoor unit. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
Key Specifications
| Brand & Model | Goodman AMVT42CP1400 |
|---|---|
| Nominal Capacity | 3.5 Tons (42,000 BTU/h) |
| Refrigerant | R-410A |
| Nominal Airflow | Approx. 938–1,400 CFM (variable-speed ECM) |
| Blower Motor | 3/4 HP Variable-Speed ECM |
| Cabinet Width | 21.0" |
| Installation | Multi-Position (Upflow / Downflow / Horizontal) |
| Electrical | 208/240V, 1 Phase, 60 Hz (MCA 6.5A, MOCP 15A) |
| Evaporator Coil | All-Aluminum with Factory-Installed TXV |
| Line Connections | 3/8" Liquid, 3/4" Suction, 3/4" FPT Drain |
| Controls | ComfortBridge Communicating + CoolCloud Bluetooth |
| Certification | AHRI Certified, ETL Listed |
With a 21-inch cabinet and 3/4 HP variable-speed ECM blower, the AMVT42CP1400 bridges compact and full-size air handlers, delivering the airflow a 3.5-ton system needs while fitting a wide range of installation spaces.
Air Handler Features
Variable-Speed Blower & ComfortBridge Controls
- 3/4 HP variable-speed ECM blower for efficient, even airflow
- Nominal airflow range of approximately 938–1,400 CFM
- Integrated ComfortBridge communicating technology
- Bluetooth commissioning and diagnostics via the Goodman CoolCloud app
- Automatic airflow and tonnage configuration in communicating mode
- Onboard CFM indicator and adjustable low-CFM fan-only operation
- Fault recall of the six most recent fault codes
- Works with single- and multi-stage cooling and heat pump systems
21" SmartFrame Cabinet & All-Aluminum Coil
- 21-inch SmartFrame cabinet for mid-to-large residential systems
- All-aluminum evaporator coil for long-term corrosion resistance
- Factory-installed thermal expansion valve for cooling and heat pump use
- Multi-position installation: upflow, downflow, and horizontal
- 3/8" liquid and 3/4" suction line connections
- 3/4" FPT condensate drain connection
- Field-installed electric heat kits available from 5 kW to 15 kW
- R-410A compatible; AHRI certified and ETL listed
Specifications & Manuals
Product documentation includes technical specifications and warranty information to assist with equipment selection, installation, and service.
Frequently Asked Questions
How wide is the AMVT42CP1400 cabinet, and will it fit my space?
The AMVT42CP1400 uses a 21-inch-wide SmartFrame cabinet. Confirm your closet, attic platform, or mechanical space has clearance for a 21" unit plus service and duct connections before installation.
What size home is a 3.5-ton air handler suited for?
A 3.5-ton system supports roughly 42,000 BTU/h of cooling, typically matching homes around 1,600 to 2,000 square feet. A load calculation and the matched outdoor unit should confirm the correct size.
What electrical circuit does the AMVT42CP1400 require?
The air handler operates on 208/240V single-phase power with a minimum circuit ampacity of 6.5A and a maximum overcurrent protection of 15A. Adding an electric heat kit increases the circuit requirements.
Does the AMVT42CP1400 work with a heat pump?
Yes. Its factory-installed thermal expansion valve supports both air conditioning and heat pump operation, making it suitable for a matched 3.5-ton R-410A heat pump or condenser.
What refrigerant line connection sizes does this unit use?
The AMVT42CP1400 has a 3/8" liquid line connection and a 3/4" suction line connection, with a 3/4" FPT condensate drain. Verify these against your matched outdoor unit and line set.
How do I qualify for the full 10-year parts warranty?
Register the unit online within 60 days of installation to receive up to a 10-year parts limited warranty. Without registration, a 5-year parts limited warranty applies.
AMVT Technical Specifications
