Oxbox J5AH4P48A1C00 Air Handler 4 Ton 48000 Btu R-454B Multi-position Psc Motor

Product Description

The Oxbox J5AH4P48A1C00 is a multi-position residential air handler engineered to circulate conditioned air in split-system heating and cooling applications. Rated at 4 tons (48000 BTU/h), it is designed for use with R-454B refrigerant and pairs with a compatible heat pump outdoor unit to deliver year-round comfort. The unit uses a multi-speed PSC blower motor to move air efficiently across the indoor coil. Electrical ratings are 208/230 volts, single phase, 60 Hz. The multi-position design allows installation in upflow or horizontal configurations, giving installers flexibility on the jobsite. Licensed HVAC technicians performing new installations or system upgrades in mid-to-large residential applications are the primary end users of this unit.

This air handler is suited for mid-to-large residential split systems requiring a 4-ton indoor unit. It is confirmed compatible as the air handler half of the Oxbox J5HP5048A1000 plus J5AH4P48A1C00 split system bundle, making it a direct fit for that pairing. Its multi-position cabinet supports both upflow with top discharge and horizontal with side discharge, accommodating a range of equipment room and closet layouts common in residential new construction and retrofit projects.

Key Features

• 4-ton (48000 BTU/h) capacity for mid-to-large residential cooling and heating loads
• Multi-speed PSC blower motor for reliable airflow across operating conditions
• R-454B refrigerant compatible, aligned with current low-GWP refrigerant requirements
• Multi-position cabinet supports upflow and horizontal installation orientations
• Dual drainage spouts for flexible condensate management
• ETL Listed and AHRI Certified for code-compliant installations

Compatibility

Confirmed compatible with the Oxbox J5HP5048A1000 heat pump as part of a matched 4-ton split system. Designed as an OEM-style indoor unit for R-454B residential split-system heat pump applications.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with applicable local mechanical codes and manufacturer guidelines. Shut off all electrical power to the system at the disconnect before any work begins. Ensure the condensate drain lines are properly trapped and pitched per local plumbing code before startup. R-454B is a mildly flammable A2L refrigerant — technicians must follow EPA Section 608 requirements and use equipment rated for A2L refrigerants when recovering, evacuating, or charging the system.

Technical Specifications

• Capacity: 48000 BTU/h (4 Ton)
• Refrigerant: R-454B
• Voltage: 208/230 volts, 1 Phase, 60 Hz
• Blower Motor Type: Multi-Speed PSC
• Installation Positions: Upflow (Top Discharge), Horizontal (Side Discharge)
• Certifications: ETL Listed, AHRI Certified

Standard Information

• Brand: Oxbox
• Manufacturer Part Number: J5AH4P48A1C00