| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a snow-melting system capable of quickly confirming a defect in construction. <P>SOLUTION: A snow-melting device has a test operation switch in a control device in addition to an operation switch provided in a remote control. The operation switch is for conducting a normal operation and the test operation switch is for conducting a test operation. When the operation switch is pressed (S1: YES) and the normal operation is started, first an initial check is performed (S2) and then a snow-melting operation is performed (S4). When the test operation switch is pressed (S7: YES) and the test operation process (S8) is started, the snow-melting operation is performed without the initial check. Therefore, the snow-melting device enables a contractor to quickly confirm whether or not antifreeze liquid circulates smoothly in a channel of the snow-melting device after installing the same. <P>COPYRIGHT: (C)2012,JPO&INPIT |
