Circulation System

Circulation system is present

 EPG
This box indicates whether a circulation system is present in the building or part of the building. A circulation system can be specified only if the generation configuration is a collective system, which should be specified in the generation configuration for domestic hot water. The losses of the circulation system will be captured in the distribution efficiency, whereas the other energy losses are included in the emission efficiency, e.g. the losses in the pipes to the taps.

Circulation system in permanent operation

 EPG
This box indicates whether the circulation system in the building or part of the building is permanently in operation. If this is not the case, additional heat losses due to cooling are charged which are included in the distribution efficiency. By unchecking this box, an additional input field appears in which the percentage of time for which the circulation system is in operation can be indicated. Whether or not the circulation system is in permanent operation does not affect the calculations in case the flat rate method is applied to compute the distribution efficiency, see Pipe data.

Percentage of time in operation

[%] EPG
The percentage of the day for which the circulation system is in operation can be indicated here if this system is not in permanent operation. This value does not affect the calculation results in case the flat rate method is applied to compute the distribution efficiency, see Pipe data.

Power circulators known

 EPG
If the power of the circulators is known this should be specified here by checking the box; an additional input field then appears in which the power of the circulator can be expressed in W. Currently, it is required to specify the power of the pumps as the alternate method is not supported yet.