Main features of the system:
- central air handling unit (or multiple units) for the whole building
- single pressure ventilation
- heat recovery
- suitable for new buildings
Basic elements of the system:
- central air handling units with ZZT
- variable flow controllers installed in individual accommodation units
In a central equal-pressure ventilation system with ZZT, fresh air is supplied to the central air handling unit where the heat energy from the exhaust air from the accommodation units is transferred to the supply air via heat recovery. The treated air is then distributed to the building. Each accommodation unit is fitted with a variable flow controller which controls the amount of supply and extract air according to the actual ventilation demand. Fresh air is supplied to the living areas of the accommodation unit and at the same time, polluted air is extracted from the sanitary facilities. The system ensures a consistently stable indoor environmental quality, high user comfort and, thanks to heat recovery, contributes to a reduction in the operating costs of the building.
