| 摘要 |
PROBLEM TO BE SOLVED: To realize trial operation of a heat-accumulating unit, using a simple operation of a controller of the heat accumulating unit, without having to clear set data stored in the controller. SOLUTION: If a user keeps depressing an inspection button 62 for 4 seconds or longer, the heat-accumulating unit 19 is switched to trial operation more for enabling operation of the heat-accumulating unit 19 by manual operation. However, if there is no entry made on an operation panel 53 for a prescribed time, an originally set operation status is restored. |
