| 摘要 |
It consists of a ventilation system for lavatory cubicles and is placed in operation by actuation of the cistern. Basically, it consists of a level switch 5 installed in the cistern which is connected to a conversion and timing central unit 11 which is in turn connected to the extractor 4 and to the general switch 8 for the lavatory cubicle, a disconnector 9 for the level switch 5 and a push-button 10 for the manual control. <IMAGE>
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