Ground source heat pump heat pump with the option of water/water operation.
20.5 to 42.3 kW (single-stage) and 41.0 to 84.6 kW (two-stage)
25.4 to 52.3 kW (single-stage) and 50.8 to 104.6 kW (two-stage)
With two-stage version
Thanks to EVI compressor
Due to sound-optimised appliance design
Coefficient of performance to EN 14511 of up to 5.0 (brine 0 °C/water 35 °C)
For heating and DHW
Refrigerant cycle diagnostic system in conjunction with electronic expansion valve
With plain text and graphic display
As well as natural or active cooling
E.g. combination with the Vitocal 300-G
Thanks to preparation for optimised power consumption from photovoltaic systems
For operation and service via Viessmann apps (accessories)
The powerful Vitocal 350-G brine/water heat pump is one of the quietest heat generators of its kind thanks to its low vibration design.
Where heat demand is even higher, the Vitocal 350-G can be operated in two-stage mode with an additional heat pump of the same type, or with a Vitocal 300-G in a master/slave system, and can then provide an output of up to 84.6 kW. At an early stage when planning the system, this configuration allows for optimum matching of the heat pumps to the building in question.
The Vitocal 350-G achieves high flow temperatures of up to 68 °C. This results from the use of an EVI (enhanced vapour injection) refrigerant circuit, where the injection of vapour cools the refrigerant so that it can be more densely compressed than is otherwise possible. This means that the Vitocal 350-G is also suitable for modernisation projects involving radiator heating systems.
In a master/slave system, the Vitocal 350-G, as the master, delivers high flow temperatures for DHW heating, while the Vitocal 300-G (slave, without its own control unit) covers the required heat load. The EVI refrigerant circuit enables the Vitocal 350-G to achieve a very high COP of up to 5.0, which contributes to its low running costs.
The Vitocal 350-G heat pump is already prepared for cost effective operation with self-generated power from a photovoltaic system. An intelligent control unit ensures maximum consumption of the self-generated power and therefore lowers energy costs.
The EHPA Quality Label serves as proof of the COP (coefficient of performance). The German EHPA Quality Label Committee has confirmed that Viessmann's Vitocal 350-G heat pump meets EHPA Quality Label requirements.
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 appViGuide 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 appThe 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 VitoconnectViessmann uses the convenient Vitotronic 200 control unit to ensure standardised operation of all its heat generators. Its many functions include menu-guided operation, an integral diagnostic system, control of the instantaneous heating water heater and an additional (existing) oil or gas boiler, and of course, the natural and active cooling functions.
Furthermore, the Vitotronic 200 is capable of communicating and, via the 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.
Type BW/BWS 351.B20: 20.5 kW | type BW/BWS 351.B27: 28.7 kW | type BW/BWS 351.B33: 32.7 kW | type BW/BWS 351.B42: 42.3 kW
Type BW/BWS 351.B20: 4.8 | type BW/BWS 351.B27: 4.9 | type BW/BWS 351.B33: 5.0 | type BW/BWS 351.B42: 4.8
A++ / A++
* 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)
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Detached houses, two-family houses, apartment buildings, commercial enterprises, local authority premises, new build and modernisation projects
Vitotronic 200 control unit with plain text and graphic display; can be operated via the ViCare app
Additional DHW cylinder required, resulting in a high level of DHW convenience
Natural cooling and active cooling functions
