OXBOX BY TRANE 4 Ton 14.3 SEER2 Split-System Dual Fuel Heat Pump with D-Cabinet Coil and 120,000 BTU Gas Furnace – J5HP5048A1000AA, J5MXCD010AC6HCA, J962V120DU5SA

Split-System Dual Fuel Heat Pump – Combines an outdoor heat pump with a high-efficiency gas furnace for flexible heating and cooling

Complete 4 Ton System – Includes J5HP5048A1000AA heat pump, J5MXCD010AC6HCA cased coil, and J962V120DU5SA gas furnace

14.3 SEER2 Heat Pump Efficiency – Provides efficient cooling and electric heating using R454B refrigerant

120,000 BTU Gas Furnace Backup – Two-stage furnace delivers high-capacity heating with 96% AFUE efficiency

D-Cabinet Coil & Furnace Design – Supports 3.5–5.0 ton applications with proper airflow and installation compatibility

This Oxbox system is a split-system dual fuel heat pump designed to deliver efficient cooling, electric heat pump operation, and high-capacity gas heating for residential applications with higher heating demand. As a split system, it combines an outdoor heat pump unit with indoor heating components, connected by refrigerant lines to provide balanced airflow and consistent indoor comfort.

The system includes the J5HP5048A1000AA outdoor heat pump, rated at 4.0 tons with 14.3 SEER2 efficiency and engineered for R454B refrigerant, providing reliable cooling and heat pump heating during mild weather conditions. The J5MXCD010AC6HCA evaporator coil is a D-cabinet cased coil compatible with 3.5–5.0 ton systems, supporting proper airflow and efficient heat transfer. For colder climates or higher load requirements, the J962V120DU5SA gas furnace delivers 120,000 BTUH of heating capacity with 96% AFUE efficiency and two-stage operation, ensuring powerful, quiet, and energy-efficient backup heat.

When properly installed, this matched split-system dual fuel configuration automatically balances heat pump and gas furnace operation to deliver year-round comfort, efficiency, and long-term reliability.

J5HP5048A1000AA – 

Submittals –Submittals_J5HP5048A1000AA

Energy Guide – J5HP5048A1000AA

Sell Sheet – SellSheet_English_HeatPump_R-454B

Installation Manual – InstallationManual_English_J5HP5_14.3SEER2

J5MXCD010AC6HCA – 

Submittals – Submittal_J5MXC-SUB-1A

Sell Sheet – SellSheet_English_IndoorCoils_R-454B

Installation Manual – InstallationManual_English_J5MXC

J962V120DU5SA – 

Submittals – Submittal_J962VSAA

Energy Guide – J962V120DU5S

Sell Sheet – SellSheet_Furnace_80_96_percent

Installation Manual – InstallationManual_J962VSAA