| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve detection accuracy by providing a first control substrate for outputting a signal to an outdoor machine, and a second control substrate with a gas sensor for detecting the degree of the pollution of indoor air. SOLUTION: An electric collector 11 and an air cleaner 10 with a deodorization filter 12 are incorporated into an indoor machine 8. A first control substrate 21 is arranged at the front side of the indoor machine 8, and a second control substrate 22 is arranged at the center part. On the second control substrate 22, a gas sensor 24 is provided, where the gas sensor 24 detects the pollution of air such as the concentration of dust being contained in the air. Also, the gas sensor 24 is connected to the main control device of the first control substrate 21, and sends a detection signal to the main control device. In this manner, the second control substrate 22 with the gas sensor 24 for detecting the degree of the pollution of air is separated from the first control substrate 21, and at the same time is arranged at the front side of the indoor machine 8, thus leading a sufficient amount of air to the gas sensor 24, and hence improving detection accuracy.</p> |
