Supply

Mechanical supply

 HL BS EPG
This box indicates whether a mechanical supply for the air handling system is present. Checking this box affects the ventilation system type in the top of the Air handling screen.

Number of fans

[Pieces] EPG
This number represents the number of ventilators within the air handling unit. This input can only be specified in case the Ventilation power is determined using the detailed method in the EPG calculation. The ventilation power in the system also includes the ventilation power on room level, as is the case with fan coils.

Nominal power

 EPG
This is the nominal power per fan in W. In case multiple fans have been defined, the nominal power is multiplied by the number of fans. The ventilation power in the system also includes the ventilation power at room level, as is the case with fan coils.

Warming-up

 HL BS EPG
This indicates whether the heating of air caused by the supply fan should be taken into account. The amount of heating should be specified in Kelvin.

•      Vabi default the heating by the supply fan is taken as 1.5 K

•      User defined the heating by the supply fan can be specified between 0 and 4 K

Supply grilles

 EPG
The regulation (control) of the supply grilles can be specified in case no mechanical supply is available, and consequently the supply air is extracted from outside. The supply grilles partially determine the ventilation control type in the top of the screen, which is used for the energy performance EPG calculation.

•      No control

•      Wind pressure driven flow Δp ≤ 1 Pa

•      Wind pressure driven flow 1 Pa <Δp ≤ 5 Pa

•      Wind pressure driven flow 5 Pa <Δp ≤ 10 Pa

•      Time control without zoning

•      CO2 control on indirect supply in each living room, without zoning