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

摘要

Combined system (21) of domestic water heating and a heating medium for domestic heating, comprising 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 connected by primary circuits (24, 25) via a plate heat exchanger (22) with the combined system (21) are connected in parallel, and parallel circuits that collect heat from the heating medium comprises, on the one hand for the Wohnungsheizungskreislauf (11) and on the other hand for the circuit (23) for heating of service water with the interface through its own heat exchanger (8), characterized in that the parallel circuits (23, 11, 24, 25), including their return sections, are interconnected via plate heat exchangers (8, 22) to form in the combined system block ( 21) to be bundled, and both are different switchable, in particular depending on the u different levels of temperatures attained of at least two superimposed layers of heating media in an outer heat storage tank (20) formed by a different connection of a three-way valve group (16, 17, 18, 19) with entrances / outlets to the circuits (23, 11, 24, 25) is connected in parallel, preferably via the input / output (27) in the external container (20) for the housing heating circuit (11) and via the input / output (26) in the external container for heating service water, primarily with the heating circuit (23 ) of the service water from the upper layer of the heating medium through three-way mixing valves (17, 7) for switching to either a domestic water heating circuit (23) which does not exceed 55 ° C or a residential heating circuit (11) having a temperature of even more than 55 ° C ,