Pressure Maintenance – In this dialog you can define pressure maintenance. This is then assigned to one or more networks in the configuration and can be switched off again for a calculation.

• Control name – Name of the pressure maintenance. The name may be changed but must remain unique within the controls.
• Node 1 – use this combination field to manage the rule node for the flow/return pressure maintenance and/or the first rule node for the average pressure maintenance is selected.
• Node 2 – The combination field serves to select the 2nd rule node of the average pressure maintenance. The average pressure maintenance is activated using the selection field before the node.
• Pressure – The pressure value which must be held constant.
• Middle factor – The average factor determines the resulting average pressure in case of the kind of pressure maintenance "average pressure maintenance" with given pressures at the nodes 1 and 2. It is calculated as follows:
  • Average pressure = node pressure 1 * factor + node pressure 2 * (1 – factor).
  • A value of 0.5 corresponds to the actual (symmetrical) average pressure maintenance between the pressure maintenance nodes.