Details on Global Presettings for Multisupplier Dwelling Stations
Information on the dialog Global settings for manufacturer-neutral heat interface units in the Pipe Network Calculation Heating.
In this dialog, you make global settings that apply to all manufacturer-neutral heat interface units in the project. These data can be changed in the technical data dialog of individual heat interface units.
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Requirement Potable water
Temperature (cold): The cold water temperature of the connected apartment.
Temperature (hot): The hot water temperature of the connected apartment.
Tap rate: The peak demand of the hot water demand. The standard value of 15 l/min corresponds to two consumers that are tapped simultaneously, a bathtub and a shower, e. g. Normal are around 12–17 l/min.
Heat capacity: The heat capacity is calculated and initially assigned globally to all manufacturer neutral heat interface units in the drawing. These values can be edited in the technical data dialog of individual heat interface units.
Technical data
Supply water temperature: The supply temperature for potable water heating. The supply water temperature may not be higher than the supply water temperature in the heat generator. It should not exceed 65 °C in order to avoid calcification of the heat exchangers.
Return water temperature: The Return water temperature for potable water heating. Return water temperature in a heat interface unit is lower than return water temperature in the heat generator due to additionally being reduced by heating potable water.
Differential pressure closed-loop controller: The pressure loss of the differential pressure controller which is included in the heat interface unit component. If the differential pressure closed-loop controller is installed externally, set the value to zero here and enter the pressure loss in the technical data of the differential pressure closed-loop controller.
Pressure loss, kv-value: Manually entered pressure loss or Kv value of the heat interface unit.
Volume: The water volume of the heat interface unit is required to calculate the system volume and to design the diaphragm expansion vessel (DEV). If no water volume is entered, a note will be issued in the dialog Edit reports. This only occurs with a diaphragm expansion tank installed.