| 摘要 |
PURPOSE:To maximize the capacity of a device for generating space cooling and heating capacity until room temp. reaches a set lower limit temp. and an economical operation is carried out once after the room temp. reaches the set lower limit temp. by installing a means for computing the space cooling and heating capacity equipped with a timer means and deciding the space cooling and heating capacity. CONSTITUTION:First, a set lower limit temp. (B) is established. Then, suction air temp. (Tr1) discovered by a temp. detector 2 is fed and the capacity of an air conditioner is charged by a device 4 for changing space cooling and heating capacity and a compressor 5 is operated at its maximum revolving speed by a device 1 for generating space heating capacity. Then, the temp. Tr1 and the temp. B are compared and when the temp. Tr1 reaches the temp. B and is further higher than the temp. B, the temp. Tr1 is memorozed in a memory and the capacity is changed by the device 4 and the revolving speed of the compressor 5 is reduced to the minimum value by the device 1. After a fixed time has elapsed, suction temp. (Tr2) is detected by a temp. sensor 2 and compared with the temp. Tr1. At that time when Tr2>Tr1, the compressor 5 is operated continuously at its minimum revolving speed by the device 1 as before.
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