| 摘要 |
PURPOSE:To make it possible to perform control of economical parallel operation, in a device for controlling the number of operating units of a plurality of the air conditioning machines, by computing the real load amount of the air conditioning for a specified time length, comparing the value with a reference control amount, performing computation, thereby controlling the number of operating units of the air conditioning machines. CONSTITUTION:In coling operation, the number of the operating units of the air conditioning machines A1-A4, which are connected in parallel, is controlled by the control device 5, which receives output signals from a load sensor 6, an input temperature sensor 7, and an output temperature sensor 8. Namely, the control device 5 receives the output signals from the sensors 6-8. The operating hours of each air conditioner are integrated in a microprocessor 11, and the result is stored in a memory 12. Meanwhile, the real load amount at the measured time is computed in the microprocessor 11 based on the load data. The load amount is compared with the reference control amount stored in a memory 14, and an operation control part 13 is controlled in respons to the result. Then the number of the operating units of the air conditioning machines A1-A4 and the operating order are controlled. |
