| 摘要 |
PURPOSE:To prevent erroneous operations from occurring, by maintaining a simultaneous operating switch in an OFF state by a central control at least when a changeover switch is changed over from an initialized state to an operative state. CONSTITUTION:When changing initial values, the simultaneous operating switch is always maintained in the OFF state under the control of the central controller. Namely, in the initialized state, the state of the n-th operating command lamp 15 is discriminated. When the lamp 15 is turned ON, it is discriminated whether or not the simultaneous operating switch 7 is in the ON state, and when the switch 7 is in the ON state, it is discriminated whether or not the n-th air conditioner 3 is already set in the operative state. When the air conditioner 3 is in the operative state, processing is finished, and when the air conditioner 3 is not in the operative state, a sub-machine 2 is supplied with a signal for turning ON both a relay contact A55 and a relay contact B56, and then only the contact B56 is turned OFF, thereby completing the processing. When the lamp 15 is not turned ON or the switch 7 is not turned ON, both of the contacts A55 and B56 are turned OFF, thereby completing the processing. |
