Operation SiE71-20210 Operation1. Operation1.1 Explanation for SystemsThis product is operated differently depending on the system configuration.For the operation of the remote controller for indoor unit and centralized controller, refer to the instructionmanual provided with each unit. Operation for Each SystemSystem Example Operation MethodIndependentSystem The remote controller turns on and off the airconditioner and HRV unit.CombinedOperationSystem with VRVSystems andSkyair SeriesThe remote controller for VRV turns on and offthe air conditioner and HRV unit.If only the HRV unit is used without operatingthe air conditioner, set the unit in the “ ”VENTILATION mode.The ON/OFF and timer operation can not beperformed using the HRV remote controllers.(The indication of centralized control“ ” appears on the display.)Other operations can be performed using theHRV remote controllers. Starting and stoppingoperations of the indoor unit and the HRV unitcan be performed using the indoor remotecontrollers.CentralizedSystem When the HRV remote controllers is notconnected, the Centralized controller controlsthe operation of the HRV unit.When the HRV remote controllers is connected,operation can be started and stopped using theCentralized controller or the indoor and theHRV remote controllers.During the indication of centralized control“ ” appears on the display, the ON/OFF and timer operation may not be possiblewith the HRV remote controllers. Otheroperations can be performed using the HRVremote controllers.HRV unitRemote controller forHRV unit(BRC301B61)Indoor unit HRV unitRemote controller forindoor unitIndoor unit HRV unitRemote controllerfor indoor unitRemote controller forHRV unit(BRC301B61)HRV unitRemote controllerfor indoor unitCentralizedcontrollerRemote controller forHRV unit(BRC301B61)