Daikin Industries, Ltd.

Takayoshi Yamamoto

Tomoo Masuda

Hiromune Matsuoka

Keita Kitagawa

Tsuyoshi Yokomizo

Tsunehisa Sanagi

Akihiro Eguchi

Ryouta Suhara

Kouji Azumi

Yoshito Matsuda

Tarou Yasumatsu

Seisuke Itou

A drainage mechanism is connected to a drain pump that sucks water from a drain pan. The drainage mechanism includes a connecting part that connects to the drain pump, a first flow path, a folded part, and a second flow path. The first flow path extends upward from the connecting part. The folded part has a first end connected to an upper end of the first flow path and a second end on a side opposite to the first end. The folded part changes a direction of the water flowing therein from upward to downward. The second flow path extends from the second end. The second flow path is a pipe that has an inner diameter of 13 mm or less. The flow path area of the folded part is larger than the flow path area of the second flow path.

Drainage mechanism and air conditioning system including the same

False determination in the presence or absence of a person in a in a room is limited. An air conditioner suspends an air conditioning operation if a room is vacant. If at least one of motion detectors, each provided to one of the indoor units, starts to detect the presence of a person during suspension of the air conditioning operation, an indoor controller of an indoor unit sums, for each of the motion detectors, time periods in which the presence of the person is detected to obtain a detection time period sum. If any one of detection time period sums, each for one of the motion detectors, reaches a reference value within a predetermined time period, the outdoor controller causes the air conditioner to resume the air conditioning operation.

Occupancy based control of air conditioning system

An indoor unit of an air conditioning system is provided. The indoor unit includes a fan, a control box that includes an inspection port on a first side surface, and a casing that houses the fan and the control box. The casing includes a first flow port in a bottom surface of the casing, a second flow port in a first side surface of the casing, and an opening opposed to the inspection port in a second side surface of the casing. The control box comprises a first leading port on each of a second side surface and a third side surface of the control box, the second side surface and the third side surface are opposed to each other and adjacent to the first side surface, and the first leading ports lead external wirings into the control box.

Indoor unit for air conditioning device

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Osaka, Japan

Takayoshi Yamamoto