Oxbox J5PH4048A1000A Packaged Heat Pump Unit 48000 Btu 4 Ton 13.4 SEER2 R-454B Single Phase

Product Description

The Oxbox J5PH4048A1000A is a 4-ton packaged heat pump unit rated at 48,000 BTU/h with a 13.4 SEER2 efficiency rating. It uses R-454B refrigerant, a lower-global-warming-potential alternative to R-410A, making it compliant with current EPA refrigerant transition requirements. This self-contained unit houses both the heating and cooling components in a single cabinet, eliminating the need for a separate indoor condensing section. It operates on 208/230-volt, single-phase, 60 Hz power. Licensed HVAC technicians install this unit in rooftop or ground-level applications for residential and light commercial projects requiring integrated heating and cooling in one package.

The J5PH4048A1000A is suited for residential and light commercial applications where a fully self-contained system is preferred or required by the installation layout. Typical scenarios include slab-mounted installations on the exterior of a structure or rooftop placements using a roof curb adapter. The unit is designed to connect directly to the building ductwork through supply and return openings on the bottom or side of the cabinet, depending on the orientation selected at installation. This packaged format simplifies service access since all refrigerant components, the air handler section, and controls are located in one enclosure.

Key Features

• 4-ton (48,000 BTU/h) capacity for year-round heating and cooling from a single unit
• 13.4 SEER2 efficiency rating meets current DOE minimum efficiency standards
• R-454B refrigerant — lower GWP, EPA-compliant for new equipment regulations
• 208/230-volt, single-phase, 60 Hz electrical configuration
• All-in-one packaged design simplifies installation where separate indoor and outdoor units are not practical
• Compatible with optional electric heat kits for supplemental or emergency heat capacity

Compatibility

Designed as an OEM packaged heat pump unit in the Oxbox J5PH4 product family. Optional electric heat kits are available for supplemental heat. Consult the unit submittal and installation manual for approved accessory part numbers and duct connection configurations.

Installation Notes

Installation must be performed by a licensed HVAC technician certified to handle A2L refrigerants, as R-454B carries a mild flammability classification requiring specific handling and leak detection procedures. Disconnect and lock out all electrical power before servicing any components. Ductwork connections, equipment sizing, and clearances must comply with local mechanical codes and the manufacturer installation manual. Do not use R-410A service equipment or recovery cylinders with R-454B refrigerant circuits.

Technical Specifications

• Cooling Capacity: 48,000 BTU/h (4 tons)
• SEER2 Rating: 13.4
• Refrigerant Type: R-454B
• Voltage: 208/230 volts
• Phase: Single phase
• Frequency: 60 Hz
• Unit Weight: 300 pounds

Standard Information

• Brand: Oxbox
• Manufacturer Part Number: J5PH4048A1000A