Oxbox J5AH5E24A1B00 Air Handler 2 Ton Variable Speed Ecm R-454B

Product Description

The Oxbox J5AH5E24A1B00 is a 2-ton residential air handler from the J5AH5E series, designed for use with R-454B (A2L) refrigerant systems. It features a variable speed ECM blower motor, which modulates airflow to match system demand, improving comfort and efficiency compared to single-speed alternatives. The cabinet measures 41.38 inches tall by 18.13 inches wide by 20.5 inches deep, making it suitable for closet, utility room, or attic installations where space is limited. This unit is installed by licensed HVAC technicians as part of a split-system configuration paired with a matched outdoor condensing unit.

The J5AH5E24A1B00 is intended for residential split-system cooling and heating applications using R-454B, an A2L low-global-warming-potential refrigerant. The variable speed ECM blower provides quiet, efficient operation across a range of static pressures, making it well-suited for modern duct systems with zoning or enhanced filtration. The compact footprint supports installation in tight mechanical spaces common in residential construction.

Key Features

• 2-ton nominal capacity for residential split-system applications
• Variable speed ECM blower motor for efficient, demand-matched airflow
• Compatible with R-454B (A2L) refrigerant
• Compact cabinet at 41.38 x 18.13 x 20.5 inches for space-constrained installs
• Part of the J5AH5E series product line

Compatibility

Designed as an OEM-style replacement or new-installation air handler for residential R-454B split-system configurations. Specific outdoor unit compatibility should be confirmed against manufacturer matchup tables before installation.

Installation Notes

Installation must be performed by a licensed HVAC technician holding the appropriate EPA Section 608 certification for handling A2L refrigerants. Disconnect and lock out all electrical power to the system before beginning any installation or service work. R-454B is an A2L mildly flammable refrigerant — follow current ASHRAE 15 and local code requirements for ventilation and ignition source control in the mechanical space. Verify that the existing duct system and electrical supply are rated to match the air handler specifications prior to startup.

Technical Specifications

• Nominal Capacity: 2 tons
• Refrigerant: R-454B (A2L)
• Blower Motor: Variable Speed ECM
• Height: 41.38 inches
• Width: 18.13 inches
• Depth: 20.5 inches
• Series: J5AH5E

Standard Information

• Brand: Oxbox
• Manufacturer Part Number: J5AH5E24A1B00