| 摘要 |
<p>PURPOSE:To meet diversification of a working condition, etc. of each load device by detecting a temperature by use of plural temperature sensible elements set to each different working temperature. CONSTITUTION:Each temperature sensible element 3-1-3-2 turns on or off, respectively, in accordance with a room temperature, and a control part 4 of a main operation panel 1 controls a duty cycle of on and off operations of each load device 2-1,-2-m by a control signal sent out through a signal line 8 to said each load device in accordance with the operating state of said each temperature sensible element 3-1 and 3-2. For instance, in case when a working temperature of the temperature sensible element 3-1 is t1, and a working temperature of the temperatue sensible element 3-2 is t2, when a room temperature is below t1, an on-time of the load device is controlled to a value being below w1, and when the room temperature is between t1 and t2, the on-time of the load device is controlled to a value being between w1 and w2, and when the room temperature is higher than t2, the on-time of the load device is made longer than w2.</p> |
