Combined system consisting of domestic water heating and a heating medium for home heating

摘要

A combined system (21) consisting of domestic water heating and a heating medium for domestic heating comprises at least two independent sources of heating medium, such as a boiler unit (1) and / or a solar module system (12) or a heat pump and the like, which are generated by primary circuits (24, 25) are connected in parallel with the combined system (21) via a plate heat exchanger (22), and circuits connected in parallel, which collect heat from the heating medium, on the one hand for the domestic heating circuit (11) and on the other hand for the circuit (23) for heating domestic water with the interface through its own heat exchanger (8), while the parallel circuits (23, 11, 24, 25), including their reflux sections, are connected to one another via plate heat exchangers (8, 22) to be bundled in the combined system block (21) , and both can be switched differently, especially depending on the different levels us of the temperatures reached by at least two superimposed layers of heating media in an external heat storage tank (20), which is connected to the circuits (23, 11, 24, 25 ) is connected in parallel, preferably via the input / output (27) in the external tank (20) for the domestic heating circuit (11) and via the input / output (26) in the external tank for heating domestic water, primarily with the heating circuit (23) of the hot water from the upper layer of the heating medium by three-way mixing valves (17, 7) for different switching to either a hot water heating circuit (23) that does not exceed 55 ° C, or an apartment heating circuit (11) with a temperature of even more than 55 ° C.