Vitocal 350-G

Viessmann Light Commercial
Vitocal 350-G
Brine/Water Heat Pump

Vitocal 350-G

  • Rated heating output: 20.5 to 104.6 kW
  • High performance due to two-stage design
  • Flow temperatures up to 70 °C
  • Low noise and low vibrations

Features

EVI for high flow temperatures

The Vitocal 350-G achieves high flow temperatures of up to 70 °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.

Master/slave system for DHW and central heating

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.

Operation with self-generated solar power

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.

Additional features

  • Brine/water heat pump, single-stage heating output: 20.5 to 42.3 kW; two-stage: 41.0 to 84.6 kW
  • Water/water heat pump, single-stage heating output: 25.4 to 52.3 kW; two-stage: 50.8 to 104.6 kW
  • Low running costs with the highest level of efficiency at every operating point through the innovative RCD (refrigerant cycle diagnostic) system with EEV (electronic expansion valve)
  • Energy efficiency class*: A++ / A++ *In accordance with Commission Delegated Regulation (EU) No 811/2013 for heating; average climatic conditions –– low (35 °C)/medium (55 °C) temperature applications

Control / Integrations

ViCare app

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.

ViGuide 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.

Vitoconnect

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.

Vitotronic 200 control unit with communication capability

Viessmann 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.

Technical Documents

Document Name Description Document Type Language Action
Technology brochure Heating with airborne and geothermal energy PDF English Download
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