Oxbox J5AC5048A1000 Air Conditioner 4 Ton 14.3 SEER2 R-454B Residential Cooling

Product Description

The Oxbox J5AC5048A1000 is a 4-ton residential split-system air conditioner rated at 14.3 SEER2, engineered for use with R-454B (A2L) refrigerant. This unit serves as the outdoor condensing section of a central cooling system and is installed by licensed HVAC technicians. At 4 tons of cooling capacity, it is sized for mid-to-large residential applications. The R-454B refrigerant designation reflects compliance with current low-GWP refrigerant standards, which affects handling, recovery equipment compatibility, and required technician certification. Suction and liquid line connections measure 7/8 inch and 3/8 inch respectively, aligning with standard residential line set sizing.

The J5AC5048A1000 is part of the Oxbox J5AC5 series and is designed for residential split-system central air conditioning installations. It is suited for homes requiring a 4-ton outdoor condensing unit paired with a compatible indoor air handler or furnace coil. The 14.3 SEER2 efficiency rating meets current federal minimum efficiency standards for residential cooling equipment. This unit is intended for ground-level outdoor installation with proper clearance, concrete pad support, and correctly sized refrigerant line sets and electrical supply.

Key Features

• 4-ton cooling capacity for mid-to-large residential systems
• 14.3 SEER2 efficiency rating meets current federal standards
• Operates on R-454B (A2L) low-GWP refrigerant
• 7/8 inch suction line and 3/8 inch liquid line connections for standard residential line sets
• Part of the Oxbox J5AC5 split-system condenser series

Compatibility

Designed as an OEM-style outdoor condensing unit for residential split-system air conditioning applications within the Oxbox J5AC5 series. Compatible indoor equipment must be rated for use with R-454B (A2L) refrigerant. Verify indoor coil and air handler compatibility before installation.

Installation Notes

Installation must be performed by an EPA Section 608-certified HVAC technician with appropriate A2L refrigerant handling credentials, as R-454B is a mildly flammable (A2L) refrigerant requiring specific recovery equipment and safety precautions. Disconnect and lock out all electrical power to the system before making any electrical or refrigerant connections. The unit should be set on a level concrete pad with proper ground clearance and adequate clearance on all sides per manufacturer and local code requirements. Reference NEC Article 440 for disconnect and overcurrent protection sizing, and confirm the maximum overcurrent protection does not exceed the rated MOCP of 50.7 amps.

Technical Specifications

• Cooling Capacity: 4 tons
• SEER2: 14.3
• Refrigerant: R-454B (A2L)
• Maximum Overcurrent Protection (MOCP): 50.7 amps
• Suction Line Connection: 7/8 inches
• Liquid Line Connection: 3/8 inches
• Dimensions: 29.4 inches x 28 inches x 28 inches
• Series: J5AC5

Standard Information

• Brand: Oxbox
• Manufacturer Part Number: J5AC5048A1000