With a high COP of up to 4.3 (A7/W35), the outdoor heat pump meets the requirements for a convenient heat supply to offices or commercial buildings. Even at outside temperatures as low as -22 °C, this unit still achieves a flow temperature of up to 64 °C.
Air source heat pump
Two-stage air source heat pump for outdoor installation.
Rated heating output
13.2 to 55.8 kW
High heating outputs
With two-stage operation
Cascade of five appliances possible
Up to 279 kW output
Low running costs
Thanks to high COPs
Low noise and low vibrations
Due to sound-optimised appliance design
Up to 64 °C (AWO 302.B60), up to 55 °C (AWO 302.B25/B40)
Good partial load characteristics
Thanks to two-stage design
Through refrigerant circuit reversal
Easy to use Vitotronic control unit
With plain text and graphic display
Telecontrol and remote monitoring
Enables connection to Vitocom 100 and Vitocom 300
Vitocal 300-A – highly efficient air source heat pump up to 55.8 kW
The Vitocal 300-A from Viessmann is an air source heat pump in the output range from 13.2 to 55.8 kW. An output of up to 279 kW is possible with a cascade of up to five Vitocal 300-A heat pumps.
Two output stages ensure the Vitocal 300‑A operates economically. Experience has shown that approximately 70 percent of the annual heat load can be covered under partial load conditions. This means the heat pump operates with only one compressor, which achieves the highest COP values.
The integrated range of solutions for the Vitocal 300-A
Benefit from the value added services and digital services of Viessmann's integrated range of solutions.
The ViCare app provides intuitive heating control. Green for go – the user can see at a glance in the app whether their heating system is working as it should.More about the ViCare app
ViGuide is an app for trade partners. It has numerous functions for monitoring and controlling systems in both detached houses and apartment buildings and provides rapid access to Technical Service.More about the ViGuide app
The Vitoconnect is the interface between boiler and app – the prerequisite for heating system operation via smartphone and tablet. It also provides remote system maintenance capability for contractors using the Vitoguide app.More about the Vitoconnect
The Vitotronic 200 (WO1C) is wall mounted inside the building for easy access, which facilitates straightforward commissioning and control of the heat pump. In a dual mode system, say in combination with a gas or oil boiler, the heat pump control unit can automatically start the second heat generator.
Furthermore, the Vitotronic 200 heat pump control unit is capable of communicating and, via the Vitocom 100 or Vitocom 300 communication module, allows the heat pump system to be set up, monitored and optimised over the internet with the Vitotrol app on a smartphone or tablet.
Where the Vitocal 300‑A is used in commercial applications, it can also be linked to a building management system using Vitogate 200 KNX.
- Rated heating output (kW)
13.2 to 55.8 kW (air 7 °C/water 35 °C)
- COP in heating mode
Up to 4.3 (air 7 °C/water 35 °C)
- Energy efficiency class
AWO 302.B25/B40: A++ / A+, AWO 302.B60: A+ / A+
Energy efficiency class in accordance with Commission Delegated Regulation (EU) No 811/2013 for heating, average climatic conditions – low temperature application (35 °C) / medium temperature application (55 °C)
- Application area
Large residential buildings, commercial enterprises, local authority premises, new build and modernisation projects
Vitotronic 200 control unit for wall mounting with plain text and graphic display, operation via ViCare app possible
- DHW heating
Additional DHW cylinder required, resulting in a high level of DHW convenience.
- Additional features
Where the Vitocal 300‑A is used in commercial applications, it can be linked to a building management system using Vitogate 200/300 .
- Product cross-section