A controller unit for communicating with and controlling one or more discrete air conditioner units within a building is disclosed. In some instances, the discrete air conditioner controller may be configured to receive signals in a first signal format from a central coordinator and to transmit signals to the one or more discrete air conditioner units in a second signal format. The first signal format and second signal format may be different wireless formats. In some cases, the controller unit may store a programmable operating schedule, which may be updated via the central coordinator.