Oxbox J5AC3042A1000 Split System Air Conditioner Condenser 3.5 Ton 13.4 SEER2 R-454B

Product Description

The Oxbox J5AC3042A1000 is a 3.5-ton single-phase outdoor condensing unit rated at 13.4 SEER2 and designed for residential split-system central air conditioning. It operates on 208/230 volts, single phase, 60 Hz and uses R-454B refrigerant, the low-GWP A2L refrigerant now required for new residential equipment under current EPA regulations. The unit features a microchannel outdoor coil and an ECM outdoor fan motor rated at 1/3 HP and 980 RPM, contributing to quiet, efficient operation. Rated running load amps are 18.5 with a locked-rotor rating of 96.0 amps. The outdoor cabinet measures 28 inches wide by 33-3/16 inches high by 28 inches deep. Licensed HVAC technicians install and commission this unit as part of a matched split system.

The J5AC3042A1000 is suited for residential cooling applications where a 3.5-ton, 42,000 BTU/h outdoor condensing unit is required. It pairs with a compatible indoor coil and air handler to form a complete split system. The unit is engineered for single-phase residential service and is appropriate for new installations or direct replacement of aging outdoor condensing equipment of equivalent tonnage. The 24-volt system control interface is standard for compatibility with typical residential thermostat wiring. The liquid line service valve connection is 3/8 inch and the gas line service valve connection is 7/8 inch.

Key Features

• 3.5-ton cooling capacity at 42,000 BTU/h for residential split systems
• 13.4 SEER2 efficiency rating meeting current federal minimum efficiency standards
• R-454B refrigerant — low-GWP A2L replacement for R-410A
• Microchannel outdoor coil construction for efficient heat transfer and reduced refrigerant volume
• ECM outdoor fan motor at 1/3 HP and 980 RPM for quieter, more efficient airflow
• Sound power level of 78 dB for residential installation compatibility
• 7/8-inch gas valve and 3/8-inch liquid valve service connections

Compatibility

Designed for use in a matched residential split-system configuration requiring a 3.5-ton outdoor condensing unit. Must be paired with a compatible indoor coil and air handler rated for use with R-454B refrigerant. Consult Oxbox system matchup documentation to confirm rated system efficiency before installation.

Installation Notes

Installation must be performed by an EPA 608-certified HVAC technician qualified to handle A2L refrigerants, as R-454B carries a mild flammability classification requiring specific handling and leak-detection practices. Shut off all power at the disconnect and breaker before making any electrical or refrigerant connections. The unit should be set on a level concrete pad or approved mounting surface with adequate clearance on all sides per manufacturer and local code requirements. Refrigerant lines must be brazed using nitrogen purge per standard industry practice, and the system must be leak-checked and fully evacuated before opening service valves and charging.

Technical Specifications

• Cooling Capacity: 42,000 BTU/h (3.5 Ton)
• SEER2 Rating: 13.4
• Refrigerant: R-454B
• Voltage / Phase / Frequency: 208/230 volts / 1 Phase / 60 Hz
• Running Load Amps: 18.5 amps
• Locked Rotor Amps: 96.0 amps
• System Control Voltage: 24 volts
• Outdoor Fan Motor: ECM, 1/3 HP
• Fan Motor Speed: 980 RPM
• Fan Motor Full Load Amps: 1.70 amps
• Outdoor Coil Type: Microchannel
• Sound Power Level: 78 dB
• Gas Valve Connection Size: 7/8 inches
• Liquid Valve Connection Size: 3/8 inches
• Unit Width: 28 inches
• Unit Height: 33-3/16 inches
• Unit Depth: 28 inches
• Factory Installed Start Components: No
• Sound Blanket: No

Standard Information

• Brand: Oxbox
• Manufacturer Part Number: J5AC3042A1000