General Electric nam42v1ta4 Variable Speed Ahu 3.5 Ton

Product Description

The GENERAL ELECTRIC nam42v1ta4 is a 3.5-ton, 1-piece variable speed air handling unit built for residential and light-commercial forced-air systems. The unit ships with a factory-installed TXV and aluminum alloy tube-and-fin coils, reducing field labor and helping ensure consistent refrigerant metering from startup. The variable speed ECM motor adjusts airflow to match system demand, supporting better dehumidification, quieter operation, and improved system efficiency compared to single-speed alternatives. Licensed HVAC technicians are the intended installers for this equipment.

This air handler is suited for split-system cooling and heat-pump applications where a 3.5-ton indoor unit is required. The 1-piece configuration simplifies installation in utility closets, mechanical rooms, and attic installations where a compact, self-contained cabinet is preferred. The factory-installed TXV eliminates a separate field installation step and is matched to the unit's rated capacity. At 54.375 inches tall, 21.5 inches wide, and 22 inches deep, the cabinet footprint fits many standard residential mechanical spaces.

Key Features

• Variable speed motor reduces operating noise and improves humidity control compared to single-speed motors
• Factory-installed TXV provides precise refrigerant metering without additional field components
• Aluminum alloy tube-and-fin coils offer corrosion resistance in high-humidity environments
• 1-piece cabinet design streamlines installation and simplifies access for future service
• Limited 10-year parts warranty on entire appliance with product registration; limited 5-year without registration
• Gray finish provides a clean appearance in finished mechanical spaces

Compatibility

Designed as an OEM-style 3.5-ton variable speed air handling unit for use in residential split-system cooling and heat-pump configurations. Consult the equipment specification sheet and the paired condensing unit's documentation to confirm system compatibility before installation.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes and the manufacturer's installation instructions. Disconnect and lock out all electrical power to the system before handling refrigerant connections or wiring. The factory-installed TXV must be matched to a compatible outdoor unit rated for the same tonnage and refrigerant type. Verify that the installation space accommodates the full cabinet dimensions plus required service clearances before mounting.

Technical Specifications

• Product Type: Air Handling Unit
• Tonnage: 3.5 tons
• Configuration: 1-Piece
• Motor Type: Variable Speed
• Coil Material: Aluminum Alloy Tube and Fin
• Metering Device: Factory-Installed TXV
• Overall Height: 54.375 inches
• Overall Width: 21.5 inches
• Overall Depth: 22 inches
• Net Weight: 158 pounds
• Approximate Shipping Weight: 168 pounds
• Color: Gray
• Parts Warranty: Limited 5-year entire appliance; Limited 10-year entire appliance with registration
• Labor Warranty: No Warranty

Standard Information

• Brand: GENERAL ELECTRIC
• Manufacturer Part Number: nam42v1ta4