Bosch 8733982679 Heat Pump Inverter 20 SEER2 3 Ton R-454B

Product Description

The BOSCH 8733982679 is a 3-ton fully-modulating inverter-driven heat pump designed for residential split-system installations. Rated up to 20 SEER2 and 9.5 HSPF2, it delivers both cooling and heating at high efficiency by continuously adjusting compressor capacity to match the load rather than cycling on and off at fixed stages. The unit operates on R-454B, an A2L refrigerant with a lower global warming potential (GWP) than legacy HFCs, positioning it for compliance with current low-GWP requirements. Sound levels run as low as 60 dBA, making it one of the quieter inverter heat pumps in its class. Licensed HVAC technicians handle installation and commissioning.

This heat pump is intended for residential ducted split-system applications where high seasonal efficiency and variable-capacity operation are priorities. The inverter drive modulates compressor speed across a wide range, which supports enhanced humidity control during cooling season and maintains more consistent indoor temperatures during heating season. The unit includes integrated smart connectivity features that interface with compatible thermostats to allow automatic comfort adjustments based on user preferences and scheduling.

Key Features

• Fully-modulating inverter compressor drive for continuous capacity adjustment
• Up to 20 SEER2 cooling efficiency and 9.5 HSPF2 heating efficiency
• R-454B A2L refrigerant with low global warming potential (Low-GWP)
• Sound levels as low as 60 dBA for quiet operation
• Integrated smart connectivity for thermostat-based automatic adjustments
• Enhanced humidity control during cooling operation

Compatibility

Designed for residential ducted split-system configurations. Compatible indoor air handler or coil unit required for a matched system installation. Verify matched equipment compatibility with BOSCH system documentation before ordering.

Installation Notes

Installation must be performed by an EPA Section 608-certified HVAC technician, as R-454B is classified as an A2L mildly flammable refrigerant requiring specific handling procedures and approved recovery equipment. Power down the system at the disconnect and breaker before making any electrical or refrigerant connections. Follow all local mechanical codes and manufacturer wiring diagrams when connecting the low-voltage control wiring between the outdoor unit and the air handler or furnace. Do not braze or connect refrigerant lines without first confirming the system is depressurized and properly evacuated.

Technical Specifications

• Cooling Capacity: 3 Ton
• SEER2 Rating: Up to 20 SEER2
• HSPF2 Rating: 9.5 HSPF2
• Compressor Type: Fully-modulating inverter drive
• Refrigerant: R-454B (A2L, Low-GWP)
• Sound Level: As low as 60 dBA
• Warranty: Up to 10 years on parts, up to 2 years on gateway connectivity components, 1 year on field-installed parts

Standard Information

• Brand: BOSCH
• Manufacturer Part Number: 8733982679