| 摘要 |
PURPOSE:To reduce a circuit board and to delete a cost by eliminating a special purpose switch as starting means for trially starting at the time of installation. CONSTITUTION:An inspection input terminal 16 for a board test and an inspection input terminal 17 for an indoor unit test are provided on an indoor unit circuit board 10. When a predetermined signal is applied to either the terminal 16 or 17, one of the board and indoor unit tests is conducted. When the signal is applied to the both terminals 16, 17, a trial operation mode is started. When no signal is applied to both the terminals 16, 17, an ordinary operation mode is selected. A circuit board of an outdoor unit is similar.
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