A compact and efficient control unit for existing buildings
Combining environmentally friendly and efficient heating systems in the renovation of existing buildings or new constructions is often a major challenge. The BRUNNER Control Unit is a unique and innovative solution that provides a cost-effective and flexible approach to modern energy and heating management. It is specially designed for use with heat pumps and is perfectly suited for upgrading existing buildings.
With the smart Control Unit, existing heating systems and a water-bearing stove can be seamlessly integrated. This makes it especially attractive for modernization projects in existing buildings, including eligibility for KfW funding. For new constructions, it offers a streamlined solution for modern heat and energy management.
The BCU can be integrated into a smart home system. The optional BRUNNER Smart Home module can be built directly into the control unit, creating the perfect interface between an intelligent home and the heating system. Operation and access are possible via the myBRUNNER app, making control especially easy and convenient.
Surplus solar power is used efficiently: an integrated electric heating element in the storage tank allows excess solar energy to be converted into heat. When the BCU is combined with the BRUNNER Charging Station BLS, you can choose whether the PV electricity is used to charge your car or to heat your home. This level of flexibility makes the Control Unit unique on the market and a distinctive feature of the BRUNNER system.
Possible Combinations
The BRUNNER Control Unit includes a hydraulic module to which the heat pump and heating consumers are connected. Both the control box and the hydraulic unit are wall-mounted inside the building. To store heat, four different variants are available:
The existing hot water tank and a separate buffer tank for heating water can simply be connected to the BCU.
The compact BRUNNER dual storage tank with a division of 300 liters for domestic hot water and 100 liters for heating water.
The BRUNNER hygiene storage tank prevents stagnant domestic water. Inside the tank, a coiled stainless steel pipe carries the drinking water, which is heated as it flows through. In addition to the heat pump, a water-bearing stove can also be connected to this storage tank.
If the heat pump is omitted from variant 3, the result is the direct electric stove heating system as the final option.
Efficient use of surplus solar power
Direct heating
Naturally, household consumers are supplied with solar power first. Any surplus is used directly for heating and to operate the BRUNNER heat pump.
To ensure that excess solar energy is efficiently converted into heat, an electric heating element is integrated into the storage tank. With continuously adjustable power control, heating output can range from 0.15 to 9 kW using solar electricity. This means the heat pump is barely needed from April to October, which reduces wear and extends its service life. If a water-bearing wood stove is also integrated, the heat pump is further relieved during the winter months, resulting in additional energy savings.
Combination with the BRUNNER Charging station
The use of surplus solar power for charging electric vehicles is especially appealing to environmentally and cost-conscious consumers. For this purpose, the BCU can be combined with the BRUNNER Charging Station BLS. What makes it unique on the market is its flexibility: users can freely choose whether the PV electricity is used primarily for charging the car or for heating.
Convenient user-friendly operation of the BRUNNER Control Unit BCU
For a seamless interface between the heating system and a smart home, the Control Unit can be integrated into a smart home system using the optional BRUNNER Smart Home module, which is installed directly in the control unit.
Operation and access are especially convenient through the easy-to-use myBRUNNER app. Integration of the PV system is also straightforward, making the entire setup even more efficient.
