Circulation control
A circulation control is required to switch a circulation pump as required . The circulation pump of a hot water system should only run when there is a need for hot water. When the desired temperature is reached, the temperature sensor in the return switches off the pump. A circulation control should ensure that the hygienic technology works efficiently. It is supposed to protect against Legionella by ensuring a forced circulation when there is no hot water requirement for a long time.
A circulation line is required whenever:
- the longest section of the hot water distribution system holds more than 3 liters
- the hot water tank (s) together have a volume of more than 400 liters
There are two ways of installing a circulation control: Using an additional device or by integrating it into the pump itself. When integrated into the pump, the circulation control is installed between the circulation pump and the power supply.
Individual evidence
- ↑ energieverbrauch.de | Circulation control - alternative to reduce heat loss & electricity demand. Retrieved May 14, 2020 .
- ↑ circulation control. Retrieved May 14, 2020 .