Bosch biva-48rxb-m15x 4 Ton Air Handler 15 SEER2 R454B

Product Description

The BOSCH biva-48rxb-m15x is a multi-position air handler from the BIVA Series, designed for residential heat pump systems using R454B refrigerant. Rated at 4 tons of capacity and up to 15.2 SEER2 and 8.5 HSPF2, this unit meets current efficiency standards for split-system heat pump applications. The cabinet features a fully insulated design with a factory-installed TXV and an all-aluminum evaporator coil for long-term corrosion resistance. A PSC blower motor with three selectable speed taps provides installation flexibility across a range of airflow requirements. A factory-installed A2L refrigerant sensor is included, supporting safe handling of the mildly flammable R454B refrigerant. Licensed HVAC technicians install this unit in residential and light commercial applications.

The biva-48rxb-m15x supports upflow and horizontal-right configurations as shipped, with field conversion available for horizontal-left and downflow orientations. It operates on a 208-230/1/60 electrical supply and is compatible with most standard 24-volt AC heat pump thermostats. Supplemental or emergency electric heat is supported through accessory electric heat kits rated at 5, 7.5, 10, 15, or 20 kilowatts, sold separately. The dual front panel design and slide-out blower and coil assembly simplify routine maintenance and service access. Integrated filter rack with tool-less door access reduces service time in the field.

Key Features

• Up to 15.2 SEER2 and 8.5 HSPF2 efficiency ratings
• All-aluminum evaporator coil for corrosion resistance
• Factory-installed TXV and A2L refrigerant sensor
• Multi-position installation: upflow, horizontal right, horizontal left, and downflow
• PSC motor with 3 selectable speed taps
• Compatible with 5 to 20 kW accessory electric heat kits
• Factory-sealed cabinet rated at 2 percent or less air leakage at 1.0 inch water column
• AHRI and ETL Listed

Compatibility

Designed for use with R454B refrigerant in residential split-system heat pump applications. Compatible with most standard 24-volt AC heat pump thermostats. Electric heat accessory kits rated 5, 7.5, 10, 15, and 20 kW are available for supplemental or emergency heating.

Installation Notes

Installation must be performed by a licensed HVAC technician certified to handle A2L refrigerants per applicable local and national codes. Disconnect and lock out all electrical power before servicing the unit or accessing the blower and coil assembly. Multiple electrical entry locations are provided to accommodate various installation configurations. Verify condensate drain routing and use both the primary and secondary drain fittings as required by local plumbing codes.

Technical Specifications

• Capacity: 4 Ton
• Efficiency: Up to 15.2 SEER2, up to 8.5 HSPF2
• Refrigerant: R454B (A2L)
• Voltage: 208-230 volts / 1-phase / 60 Hz
• Motor Type: PSC, 3-speed
• Metering Device: Factory-installed TXV
• Cabinet Insulation: Fully insulated
• Air Leakage Rate: 2 percent or less at 1.0 inch water column
• Condensate Pan Material: Polymer with UVC inhibitor
• Certifications: AHRI Listed, ETL Listed
• Unit of Measure: Each

Standard Information

• Brand: BOSCH
• Manufacturer Part Number: biva-48rxb-m15x