Ground source heat pump VWF 157/4 flexoTHERM - 11.2 kW, 3-phase, 400 V + sensoCOMFORT VRC 720 + DHW storage tank VIH RW400/3BR 0010044223

Comprehensive solution for efficient heating and cooling

The Vaillant flexoTHERM VWF 157/4 kit is an advanced solution utilizing geothermal energy for heating, cooling, and domestic hot water preparation. This system combines high efficiency, reliability, and user comfort, making it suitable for both new and renovated buildings. The kit consists of a geothermal heat pump, sensoCOMFORT VRC 720 controller, and VIH RW400/3BR hot water tank, creating a coherent and efficient installation.

Technology and efficiency

The VWF 157/4 heat pump utilizes EVI vapor injection technology, resulting in high efficiency even at low source temperatures. This ensures stable and efficient heating even in challenging climatic conditions. The COP at 10/35°C is as high as 5.37, meaning the pump generates over 5 kW of heat from 1 kW of electrical energy. The heating power of the device is 16.68 kW, allowing it to heat even larger areas. Additionally, the pump has a cooling function, providing thermal comfort in the summer months. Remote control capability provides full system control from anywhere.

Intelligent control and user comfort

The sensoCOMFORT VRC 720 controller allows precise management of the entire heating and cooling system. An intuitive user interface and advanced programming functions allow you to adapt the heat pump's operation to individual needs and preferences. The controller works with Vaillant boilers equipped with an eBUS connection and heat recovery units, allowing integration of the system with other devices in the building. The VR 940f communication module (available separately) enables remote control of the system via smartphone or tablet.

Efficient domestic hot water preparation

The VIH RW400/3BR tank with a capacity of 375 liters provides constant access to high-quality domestic hot water. The tank design has been optimized for collaboration with heat pumps, resulting in high energy efficiency and minimal heat loss. The enameled steel tank guarantees long-term protection against corrosion and ensures reliable operation for many years.

Key features of the kit:

• High efficiency: EVI technology ensures efficient heating even at low source temperatures (COP up to 5.37).
• Versatility: Ability to heat, cool and prepare domestic hot water.
• Intelligent control: sensoCOMFORT VRC 720 controller allows precise system management and adaptation to individual needs.
• User comfort: Remote control via mobile app (after purchasing VR940f module).
• Durability: High-quality components ensure reliable operation for many years.
• Application: Ideal for new buildings and modernization of existing heating installations – especially where geothermal energy is available or a ground collector can be installed.
• Safety: Maximum working pressure of the upper and lower circuits is 3 bar, ensuring safe system operation.