Vitocal 222-G

Compact, quiet and efficient

Vitocal 222-G

Brine/water heat pump

The Vitocal 222-G is a compact brine/water heat pump with a cylinder capacity of 220 litres.

Rated heating output: 5.8 to 10.4 kW
Integral DHW cylinder
Compact dimensions
Barely audible

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Rated heating output

5.8 to 10.4 kW

High DHW convenience

From integral DHW cylinder with 220 litre capacity

Compact dimensions and small footprint

For more space in the building

Barely audible even when installed near the living space

Due to innovative sound insulation concept with a maximum sound power level of 46 dB(A) (B0/W55)

High level of operating convenience thanks to integral Vitotronic control unit

Heating, cooling, DHW and ventilation

Consume self-generated power

Thanks to preparation for optimised power consumption from photovoltaic systems

Web-enabled by Vitoconnect

For operation via ViCare app (accessory)

Control of compatible mechanical ventilation units

Via integral Vitotronic control unit

Low running costs thanks to optimised seasonal efficiency

Seasonal coefficient of performance to EN 14825: up to 5.4 (cold climate/low temperature application)

COP: up to 4.8 (B0/W35)

Coefficient of performance to EN 14511 (5/2018)

Vitocal 222-G compact brine/water heat pump

Compact, efficient and quiet heat pump:  Vitocal 222-G

Compact, quiet heat pump that takes up little space – also suitable for installation close to the living space.

The  Vitocal 222-G compact brine/water heat pump is fully equipped with all of the components required for DHW and central heating.

With heating output levels of between 5.8 and 10.4  kW, it is ideal for use in detached houses. Flow temperatures up to 65  °C also enable use with conventional radiators.

This heat pump is the attractively priced alternative to the compact appliance in the 300  series. With its refrigerant circuits with a fixed heating output (in three output sizes) and an electronically controlled expansion valve, it achieves a COP (coefficient of performance) of up to 4.8 to EN  14511 (5/2018) at B0/W35.

The small footprint of this heat pump makes it particularly suitable where space is at a premium – the brine circulation pump, heating circuit pump and 3-way diverter valve are already integrated inside the compact casing.

For easy handling and installation of the  Vitocal 222-G, the new refrigerant circuit module can be simply removed from the heat pump and transported separately if required, thanks to plug-in hydraulic and electrical connectors. With the flexible connection concept, the heat pump can also be quickly matched to the installation situation on site.

The casing of the compact appliance completely protects the refrigeration module/hydraulic compartment from the outside environment and, in conjunction with the three-dimensional anti-vibration mounts, minimises operating noise. These compact heat pumps are some of the quietest in their category, as they generate a sound power level of only 46  dB(A) (B0/W55).

The Viessmann  Vitocal 222-G is Heat Pump KEYMARK certified.

Product details

Rated heating output (kW), to EN 14511, B0/W35, spread 5 K

Type BWT 221.B06: 5.8  kW | type BWT 221.B08: 7.5  kW | type BWT 221.B10: 10.4  kW

Coefficient of performance ε (COP) B0/W35

Type BWT 221.B06: 4.6 | type BWT 221.B08: 4.6 | type BWT 221.B10: 4.8

Energy efficiency class*

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)

Energy efficiency class, DHW heating


Application area

Detached houses, new build


Vitotronic 200 control unit with plain text and graphic display; can be operated via the ViCare app

DHW heating

Integral 220  litre DHW cylinder

Additional features

Particularly quiet, therefore also suitable for installation near the living space

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