Vitocal 300-G

Environmentally Responsible Heat Pumps – Find out more about the different options and benefits!

Rated Heating Power for Brine/Water Handling

4.3 - 7.5 kW

Rated heating power for water/water operation

5.6 - 10.0 kW

Very low operating costs

Thanks to the output-controlled refrigerant circuit and innovative inverter technology

Barely audible even when installed near living quarters

Thanks to the new sound insulation concept

Cooling function

Heating and cooling in one

Compact size

Small footprint for more space in the building

High level of user-friendliness thanks to the integrated Vitotronic control unit

Heating, cooling, hot water and ventilation

Highest seasonal efficiency

SCOP according to EN 14825: up to 5.6 for medium climates and low temperature applications (W35)

Increasing the self-consumption of photovoltaic energy

Due to the low modulation of heat pump power

Vitoconnect Web Interface

For management and maintenance via the free ViCare app (accessory)

With advanced inverter technology, the Vitocal 300-G brine/water heat pump is the most efficient solution for new construction and the best choice for the replacement market.

High efficiency thanks to advanced inverter technology: Vitocal 300-G

With advanced inverter technology in brine/water heat pumps, the new Vitocal 300-G is the most efficient solution for new construction and the best choice for replacing old brine/water heat pumps. A power-controlled refrigerant circuit ensures that the heat pump heat output matches the building’s current heat demand. This reduces the number of start/stop cycles in the partial load range and improves annual efficiency. The Vitocal 300-G is available in three power sizes with a modulation range of 1.7 to 8.6 kW, 2.4 to 11.4 kW or 3.8 to 15.9 kW, and therefore covers a wide range of applications in new and existing buildings.

In addition to the output control, the RCD (Refrigerant Cycle Diagnostics) system enables particularly precise and fast control of the refrigerant circuit via an electronic expansion valve. Energy-efficient, high-efficiency brine and heating pumps reduce energy consumption and costs.

The heat pump in combination with the Vitovent ventilation unit provides a particularly high level of comfort and ease of use. An integrated heat pump control unit or an optional remote control allows you to conveniently control both instruments. On hot summer days, a heat pump can also cool rooms. This requires an additional free cooling unit.

A small footprint of less than 0.5 sqm and frontal access to all components requiring maintenance save space during installation. Thanks to its very quiet operation with a noise level of 41 dB(A) (sound power level up to ErP at B0/W55), this heat pump can be installed close to a living space, e.g. in a utility room.

The Viessmann Vitocal 300-G is Heat Pump KEYMARK certified.

Learn More

Carsten Kuhlmann explains where environmental energy comes from and how different types of heat pumps use it.

Integrated range of solutions for Vitocal 300-G

Benefit from value-added and digital services from Viessmann's integrated range of solutions.

Viessmann Heat

Viessmann Wärme is our heating system rental service - ideal for those who want to enjoy superb heating comfort without having to buy a boiler.

More about Viessmann Heat

ViShare

Smart electricity tariffs for your home. Flexible, environmentally friendly and 100% renewable. The electricity tariffs are set by Energy Market Solutions GmbH (EMS), a contractual partner of the ViShare Energy Community and a subsidiary of the Viessmann Group.

Funding professional

The Viessmann FörderProfi service streamlines and simplifies the entire subsidy process, from application to payment.

The 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.

The ViGuide app

ViGuide is an application for sales partners. It has numerous functions for monitoring and managing systems in both detached and multi-family houses, as well as providing quick access to the technical service.

Vitoconnect

Vitoconnect is the interface between the boiler and the app - a prerequisite for controlling the heating system via smartphone and tablet. It also enables remote system maintenance for contractors via the Vitoguide app.

wibutler

wibutler is a manufacturer-independent smart home control centre that connects products from different manufacturers and enables their control and automation through apps.

More about Vibutler

Benedict Doll – Start at Home

Even as a child, Benedict Doll spent a lot of time outside, training for biathlon. However, climate change means that snow is becoming increasingly rare in the region where it lives. Therefore, the 2017 biathlon sprint world champion and his family decided to focus on innovation and sustainability while renovating their home with a heat pump and a photovoltaic system to contribute to climate protection.

Carsten Kuhlmann explains where environmental energy comes from and how different types of heat pumps use it.

Online management via the ViCare app

With the optional Vitoconnect internet interface, the heat pump can be controlled online from anywhere via the free ViCare app on any standard mobile device. The Vitotronic 200 control unit with text and graphic display offers intuitive operation via menus on the device itself.

Product details

Rated heat output (kW)*	Brine/Water Heat Pump: 4.3 / 5.3 / 7.5 kW \| *To EN 14511, B0/W35, 5 K distribution
ε Efficiency (COP)*	Brine/water: 4.7 / 4.8 / 5.0 * according to EN 14511, B0/W35, distribution 5 K
Energy efficiency class*	Brine/Water: Type BWC 301.C06: A+++/A+++ \| type BWC 301.C12: A+++/A+++ \| type BWC 301.C16: A+++/A+++ \| *In accordance with Commission Regulation (EU) No 813/2013 for heating, medium climatic conditions are low temperature (W35)/medium temperature (W55) applications
Energy efficiency class, hot water heating	–
Applications	Detached houses, commercial enterprises, local government premises, new construction and modernization projects.
Surgery	Vitotronic control unit with text and graphic display. Internet connectivity via Vitoconnect (accessory) for management and maintenance via the free ViCare app.
Hot water heating	An additional DHW cylinder is required, which provides a high level of DHW convenience.
Additional features	On hot summer days, a heat pump can also cool rooms. This requires an additional free cooling unit.

ServiceConnect Commercial

The innovative service concept gives Viessmann’s sales partners an additional advantage when working with commercial customers and local authorities thanks to full service from a distance.