| 摘要 |
A hydraulic circuit (10) for providing heating water and sanitary warm water to a user premise, said circuit being connected to a central hot water supply (1, 2) and comprising a pump (P), a water-water heat exchanger (6), a routing device (11) and control means (25) for delivering said central supply hot water, through said routing device (11), respectively to the user heating plant (R) or to said heat exchanger (6) when the user requires sanitary warm water. The circuit comprises a delivery hydraulic group (10A) and a return hydraulic group (10B) connected to one another by said water-water heat exchanger (6) adapted to produce sanitary warm water; and a mixing valve (5) to divert a part of the return water from said heating plant (R) and mix it with the hot water from said central supply of hot water (1, 2) under the control of said control means (25). |
