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Control Systems - Uniclima

Control Systems - Uniclima

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4 External contact control system2. External contact interface module (MIM-B14)5) <strong>Control</strong>Timing diagram for external contact controlex1)External signal ONExt. signal ONExternal signalSignal fromremote controllerIDU operationIDU ONDelay time = 100msIDU OFFON by External signalExt. signal OFFON by remote controller (Cooling, 74ºF)OFF by remotecontrollerOFF by Ext. signalIDU OFFON by External signal(Cooling, 74ºF)OFF by remotecontrollerDelay time = 100ms Note IDU stands for Indoor Unit.No prioritized operation between the R/C and the external contact I/M.ex2)External signalSignal fromremote controllerIDU operationExternal signal ONIDU ONPowerfailureON by External signalON by remote controller(Cooling, 74ºF)OFF bypower resetDelay time = 100msPowerrecoverExt. signal OFFIDU OFFAfter power reset,IDU start as previousoperation state beforepower resetOFF by (On,Cooling, 74ºF)Ext. signalDelay time = 100ms Note IDU stands for Indoor Unit.After power reset, indoor unit operates as previous state. (DIU has power recovery function)128

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