| 摘要 |
The invention relates to a heating installation especially using solar energy. The installation comprises, on the one hand, an antifreezing valve enclosing a thermostatic element which holds a needle valve pressed onto a drain orifice for as long as the temperature of the heat transfer fluid is at a critical temperature and, on the other hand, a connection device 49 comprising a tubular body 50 whose lower portion is flared, in which the 14, 15 emerge at different levels, connecting it to the storage tank and to the sensors and in which there are provided means 51 for shutting off the inlet orifice of the pipe 14 connecting it to the storage tank, only when the antifreezing valve 9 is in the draining state. <IMAGE>
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