| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat supply system capable of appropriately detecting the occurrence or not of such a fault that a heat medium flow part and a hot and cold water flow part are short-circuited within a heat exchanger. <P>SOLUTION: The heat supply system is provided with a heat medium circulating means for circulating a heat medium stored in an expansion tank, through a heat medium circulating passage 3 which passes a heat medium heating means and the heat exchanger 12, and an operation control means 5 carrying out heat medium circulating operation processing for controlling the operation of the heating means and heat medium circulating means to allow the heat medium to flow through the heat medium circulating passage in a state of being heated to a set target temperature by the heating means. The heat exchanger 12 is constituted to exchange heat between the heat medium which flows through the heat medium circulating passage, and hot and cold water which flows from a supply source to a hot and cold water consumption part through a water passage. The operation control means 5 carries out leakage discrimination processing for discriminating whether hot and cold water in the hot and cold water flow part in the heat exchanger 12 leaks out to the heat medium flow part, based on detected information of a heat medium temperature detecting means 50 for detecting the temperature of the heat medium at a part upstream of the heat exchanger 12 in the heat medium circulating passage 3. <P>COPYRIGHT: (C)2007,JPO&INPIT |
