SiBE31-801_C Field SettingTest Operation 1783.2.5 Cool / Heat Mode SwitchingThere are the following 4 cool/heat switching modes.c Set cool/heat separately for each outdoor unit system by indoor unit remote controller.d Set cool/heat separately for each outdoor unit system by cool/heat selector.e Set cool/heat for more than one outdoor unit system simultaneously in accordance withunified master outdoor unit by indoor unit remote controller.f Set cool/heat for more than one outdoor unit system simultaneously in accordance withunified master outdoor unit by cool/heat switching remote controller.(1) Set Cool / Heat Separately for Each Outdoor Unit System by Indoor Unit Remote Controller It does not matter whether or not there is outdoor - outdoor unit wiring. Set outdoor unit PCB DS1-1 to IN (factory setting). Set cool/heat switching to IND (individual) for “Setting mode 1” (factory setting). Set the master unit (= indoor unit having the right to select the cooling/heating operationmode).MODE TESTMALFNC.C/H SELECTIND MASTER SLAVE L.N.O.P. DEMANDH1P H2P H3P H4P H5P H6P H7PC/H SELECTOUTINOIC/H SELECTORDip SW.DS1-1I-O O-O OUT-MULTIA B C F1 F2 F1 F2 Q1 Q2F1 • F2 F1 • F2Indoor unit Indoor unitP1P2 P1P2Remotecontroller Remotecontrollerselect the cooling/heating operation mode).>In the case of wired remote controllers• After the check operation, “CHANGEOVER UNDERCONTROL” is flashing in all connected remote controllers.• Select an indoor unit to be used as the master unit inaccordance with the request from the customer.(It is recommended to select an indoor unit which will beused most often as the master unit.)• Press the operation mode selector button in the remotecontroller of the indoor unit selected as the master unit.• In that remote controller, “CHANGEOVER UNDERCONTROL” disappears. That remote controller will controlchangeover of the cooling/heating operation mode.• In other remote controllers, “CHANGEOVER UNDERCONTROL” lights.For the details, refer to the installation manualsupplied together with the indoor unit.In the case of wireless remote controllers• After the check operation, the timer lamp is flashing in allconnected indoor units.• Select an indoor unit to be used as the master unit inaccordance with the request from the customer.(It is recommended to select an indoor unit which will beused most often as the master unit.)• Press the operation selector mode button in the remotecontroller of the indoor unit selected as the master unit. A“peep” sound is emitted, and the timer lamp turns off in allindoor units.• That indoor unit will control changeover of the cooling/heating operation mode.
