Vitocal 333-G

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

Rated heating power

1.7 - 11.4 kW

High convenience of hot water supply

From a built-in hot water cylinder with a capacity of 220 liters

Compact size and small footprint

To increase the space in the building

Barely audible even when installed near living quarters

Thanks to the innovative sound insulation concept

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

Heating, cooling, hot water and ventilation

Increasing the self-consumption of photovoltaic energy

Due to the low modulation of heat pump power

Vitoconnect Web Interface

Controlled via the ViCare app (accessory)

Control of compatible mechanical ventilation units

Via integrated Vitotronic control unit

Low operating costs due to optimized seasonal efficiency

Seasonal efficiency factor according to EN 14825: up to 5.5 (use in cold climates/low temperatures)

COP: up to 4.8 (B0/W35)

Efficiency according to EN 14511 (5/2018)

Vitocal 333-G Compact Brine/Water Heat Pump

High efficiency thanks to advanced inverter technology: Vitocal 333-G

Compact, floor-standing heat pumps that take up little space and run particularly quietly, making them suitable even for installation near living spaces.

Thanks to the advanced inverter technology in brine/water heat pumps, the latest generation of compact Vitocal 333-G appliances is the most efficient solution for new construction.

The performance-controlled refrigerant circuit matches the heat output of the heat pump to 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 333-G is available in two power options with a modulation range of 1.7 to 8.6 kW and 2.4 to 11.4 kW, ensuring optimal coverage in new construction.

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

The newly developed 220-liter DHW cylinder in the Vitocal 333-G achieves a maximum discharge volume of more than 300 liters (40 °C discharge temperature) with efficiency class A+ (XL profile) and maintains a maximum DHW temperature of 60 °C without electric heating. As an option, a solar heat exchanger kit can be used to connect a solar thermal system to heat the DHW. The heat pump in combination with the Vitovent ventilation unit provides a particularly high level of comfort and ease of use. For convenient control of both devices, you can use the built-in control unit or the optional remote control. On hot summer days, a heat pump can also cool rooms. This built-in cooling function requires an additional free cooling unit.

For ease of movement and installation of the Vitocal 333-G, the new refrigerant circuit module can be simply removed from the heat pump and, if necessary, transported separately thanks to the plug-in hydraulic and electrical connectors. Thanks to the flexible connection concept, the heat pump can also be quickly adapted to the installation conditions on site.

A small footprint (less than 0.5^m2) and front access to all components requiring maintenance ensure space-saving installation. Thanks to its ultra-quiet operation with a noise level of 41 dB(A) (sound power level up to ErP at B0/W55), this compact unit can be installed close to living spaces, such as utility rooms.

The Viessmann Vitocal 333-G is Heat Pump KEYMARK certified.

Compact brine/water heat pump with inverter technology, from 1.7 to 11.4 kW (modulated)
Extremely high DHW convenience thanks to DHW temperatures of up to 60 °C and a high extraction rate of 300 litres via a 220-litre DHW cylinder
Very low operating costs due to optimised DHW efficiency – energy efficiency class A+
DHW temperature: up to 60 °C without electric heating

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

Integrated range of solutions for Vitocal 333-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

Houses with Arnd Peiffer in the Tegernsee Valley

Perfection pleases Arnd Peiffer. So it's only natural that the biathlete turned to his sponsorship partner Viessmann to plan and install innovative technologies – a heat pump, a photovoltaic system and energy storage – to power his new home.

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. On the appliance itself, the Vitotronic 200 control unit with text and graphic display enables intuitive operation via menus.

Vitotronic 200

Product details

Rated heat output (kW), operating point A7/W35 (according to EN 14511)	Type BWT 331.C06: 4.3 kW (1.7 – 8.6 kW modulated) \| type BWT 331.C12: 5.3 kW (2.4 – 11.4 kW modulated)
ε Efficiency Ratio (COP) A7/W35	Type BWT 331.C06: 4.7 \| type BWT 331.C12: 4.8
Energy efficiency class*	A+++ / A++ (type BWT 331.C06), A+++ / A+++ (type BWT 331.C12) * In accordance with Commission Delegated Regulation (EU) No 811/2013 for heating, medium climatic conditions – low temperature application (35 °C) / medium temperature application (55 °C)
Energy efficiency class, hot water heating	A+
Applications	Detached houses, new construction
Surgery	Vitotronic 200 control unit with text and graphic display; can be controlled via the ViCare app
Hot water heating	Built-in hot water cylinder with a volume of 220 liters
Additional features	Particularly quiet, therefore suitable for installation near living quarters
Product cross-section