Outside air (top left): Warm or cold outside air is drawn in and passed through the heat pump to prepare it for air conditioning the hall.
Heat exchanger (top right): The central component of the system uses up to 84 % of the energy from the hall’s warm exhaust air to preheat the fresh air drawn in. This significantly reduces the energy requirement.
Fresh air supply (blue): During the heating period, the fresh air drawn in is routed via the heat exchanger (HRU) and the heated supply air is fed into the hall. In the summer months, the heat exchanger (HRU) is bypassed and the cool fresh air is evenly distributed in the hall.
Indoor air (red): Warm exhaust air from the hall is extracted via ducts and fed to the heat exchanger to recover the energy.
Optional heating and cooling modules: The system can be expanded with heating coils or heat pumps to additionally heat or cool the supply air as required. For example, R32 (GWP 675), R290 (GWP 3) etc. can be used as a coolant.