Central air conditioner unit control box

The utility model discloses an electric appliance arrangement of a controlling box of a central air conditioning unit, and the electric appliance arrangement of the controlling box is divided into three physical sections. A weak current control section I, a control output section II and a strong current output section III. The disturbance which affects a microcomputer controller from the strong current can be decreased by the arrangement, the project wire connection is convenient, the power cable is saved, and meanwhile the utility model has the advantages that the structure is compact, the electric appliance arrangement is orderly and beautiful, and the level is clear.