| 摘要 |
PROBLEM TO BE SOLVED: To enhance silence by controlling the rotational speed of a rotary disc depending on the quantity of stored drain water thereby regulating the quantity of water to be sprayed and suppressing generation of discontinuous noise of splashing water. SOLUTION: When cooling operation is started, refrigerant is circulated by a compressor 7 to cool an evaporator 4. Consequently, the indoor air is cooled and the moisture in the air is condensed and collected as drain water which is received by a drain pan 9 and stored therein. In order to treat the stored drain water, a rotary disc 1 is turned by means of a splash motor 2 to spray a condenser 3 with the drain water. Level of the stored drain water is detected by a water quantity detector 10 and when the water level drops and only one third of the circumference of rotary disc 1 is immersed into the drain water for example, the rotational speed is decreased to reduce the quantity of water to be sprayed. |
