Air-to-water heat pump with ventilation

Heat pump as an air-to-water heat pump with ventilation or an air-to-water heat pump without ventilation for heating systems and domestic water heating in the passive house or low-energy house. Heating, cooling, ventilation and domestic water heating in a very small space. With highly efficient ventilation systems with heat recovery and extremely low energy consumption, Effiziento provides for maximum living comfort.

Our air-to-water heat pump with ventilation offers, as an option, pressure-constant control of the fans for supply air and exhaust air. In passive houses or low-energy houses the pressure conditions throughout the ventilation system change constantly e.g. though the soiling of filters. However the ventilation system is supposed to ensure constant pressure conditions.

Mass flow or volume flow constant ventilation systems do not always accomplish this. On the other hand, pressure-constant controlled ventilation does achieve this. It registers even the smallest change in the ventilation system and reacts immediately. The pressure is always kept constant, independently of the temperature-dependent air density. In this way an exactly balanced volume flow in the ventilation system is ensured at all times. Air infiltration or exfiltration through the building shell owing to imbalance, for which naturally heat recovery is no longer possible, is avoided. Pressure-constant controlled ventilation units always ensure ventilation with efficient heat recovery.

To further increase energy efficiency the air-to-water heat pump with ventilation has fully automatic bypass flaps for the ventilation and geothermal heat exchanger of the ventilation system. The fresh air in passive houses or low-energy houses is aspirated by the ventilation unit either via the geothermal heat exchanger or directly. The heat recovery in the ventilation heat exchanger only occurs if it makes sense in energy terms.

The air-to-water heat pump with ventilation knows the inside, outside and earth temperatures and compares them with one another constantly. Whether heating or cooling necessary, the ventilation unit sets the ventilation flaps in the most favourable position in energy terms. In this way the ventilation system always achieves the best possible energy efficiency and the highest possible overall efficiency.

This is all regulated fully automatically by the control system of the air-to-water heat pump with ventilation.