FIELD: centralized heat supply systems. SUBSTANCE: system consists of two-pipe main, group control points, distributing main which includes heating pipe lines and hot water supply pipe lines and one common return pipe line, as well as individual inlets to users connected to distributing main; each of them contains supply and return pipe lines and elevator of user's heating system, tap water heater which is connected with hot and cold tap water lines of hot water supply system of user. Heating line of heater is connected to common return pipe line of distributing main on side of cold tap water pipe line. Tap water heater consists of one stage; its heating line is connected only to hot water supply pipe line of distributing main on side of hot tap water pipe line. EFFECT: enhanced efficiency. 2 dwg
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