BalancingImportant informationATTENTIONTo ensure the ventilation system operates optimally, it is important that it is balancedcorrectly. We recommend that experts do this.It is important to measure the total supply air and the total extract air. The system must have aminimum vacuum, which means it must draw out more air than it blows in. This will preventdampness from being forced into the construction of the building.Balancing spoutsThe unit is equipped with balancing spouts to measure the supply air and the extract air volumes.The line chart can be used for setting, roughly, the main air volume at dry operation withoutcondensation.At the extract air side the difference in pressure dP3-4 [Pa] is measured between the spouts marked 3and 4. You can read the air volume qv [m3/h] on the line chart.At the supply air side the difference in pressure dP1-2 [Pa] is measured between the spouts marked 1and 2. You can read the air volume qv [m3/h] on the line chart.ATTENTIONThe capacity in the pressure loss diagram is based on a dry exchanger.Pressure fall diagram24 13The measuring connectors are inside behind thetop front panel.26