| 摘要 |
The device is characterised in that: . the mixing apparatus (20) is constituted by a branch included in the chamber, with three ways (22, 23, 24) which communicate respectively with the chamber (5), with the forward run and with the return run of the domestic heating circuit, which return run is provided with a branch (25) in the direction of the chamber, . the obturator (29) is of gradual-action type and is supported by a sliding rod (32) connected to a manual control (35) for gradual actuation from the opening position to the closing position, . an automatic priority control (40) which is sensitive to the variation in temperature at the inlet of the instantaneous sanitary hot water production circuit is provided to act on the rod. <IMAGE>
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