| 摘要 |
The water supply system includes digital keypad (1) operating at a low voltage, connected to an electronic circuit (3) which receives 110 or 220 volts and provides the low voltage output. The circuit is also connected to an electrically operated mixer valve (4) receiving hot (5) and cold (6) water inlets, and providing mixed water at the outlet (7). - The mixer valve assembly may comprise two low voltage valves with differential opening, or a set of several low voltage electrovalves. Alternatively, the mixer may comprise a single variable mixing valve controlled by magnetic pulses or by a microcomotor. (6pp Dwg.No.1/1)
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