Exhaust

Mechanical exhaust

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

Decentralized exhaust (System C; variant)

 HL
Checking this box indicates that a variant on ventilation system C should be used in the heat loss calculations for housing. In this variant the air is extracted for each room separately (demand-controlled ventilation), rather than being extracted centrally in the kitchen, bath room, and toilet. As a result the heat loss calculations are performed with a façade which is more airtight; a lower q_v,10 value can be specified.

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 detailed for the energy performance in the EPG, as should be indicated in the Project settings.

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.

Warming-up

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

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

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