| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner capable of selectively opening a knockout hole of a size suiting a piping diameter, and capable of preventing inflow of air and entering of refuse from a gap between the opened knockout hole and a piping. SOLUTION: The air conditioner is provided with knockout holes 20 for inserting a coolant piping and a drainage piping in a ceiling face or a back face of an indoor unit body 1, first cutout parts 20A are plurally formed adjacently in a cuttable form as the knockout hole for the coolant piping, and a second cutout part 20B is formed in a cuttable form so as to divide an opening area of the first cutout parts 20A as the knockout hole for the drainage piping. COPYRIGHT: (C)2009,JPO&INPIT
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