Devices which are adaptable to circuits for the distribution of cold and hot water to saving up sanitary drinking water and the energy

摘要

The device has a thermal switch (2) and two solenoid valves (3, 4) connected to a high pressure network and a low pressure network. The solenoid valves are normally closed directing cold toward an expansion slot (5). The solenoid valves are normally in open for closing the high pressure network and controlled by a pressure switch (6) connected to an outlet of a slit follow-up, where one of the valves is closely connected to the network on an outlet of other valve. An airflow sensor (9) supplies the pressure switch when the sensor detects flow.