Enter the air exchange rate in [1/h] and the daily profile here. It is also possible to automatically increase the ventilation if it gets too warm inside and it is cooler outside. To counteract too high indoor temperatures, the ventilation can be increased up to the maximum value specified here. The condition is that the limit temperature in the calculated room is exceeded and the outside temperature is below the inside temperature. For activation, mark the desired hours in the lower table behind "automatic" and set a check mark.
The air exchange rate represents a multiple of the room volume that is supplied as supply air. The temperature of the supply air corresponds to the outside air temperature. The thermal load resulting from the ventilation is called "ventilation heat". The heat of ventilation is calculated from the air volume and the difference between the outside and inside air temperature. If the heat of ventilation is positive, it is a heating effect. If the ventilation warmth is negative, it is a cooling effect. The heat of ventilation is shown in the diagrams and on the printout just like the other thermal loads.
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