| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem found in the prior art system that since a sterilization operation is carried out every time a specified time elapses from starting of a normal operation irrespective of any humidification level in an indoor area, if the sterilization operation is carried out just after an operation waiting state is changed over to a restarting operation, the normal operation is substantially interrupted to cause indoor humidity to be reduced.SOLUTION: If a counting of a sterilization operation control means 47 elapses over a prescribed time when a normal operation is changed over to an operation waiting state by an excessive humidification prevention control means 48, the sterilization operation control means 47 starts the sterilization operation, so that the sterilization operation is not carried out just after a restarting operation upon completion of the operation waiting state and an indoor humidified state can be kept.SELECTED DRAWING: Figure 6 |
