English 179-2 WIRING EXAMPLECAUTIONBe sure to install an earth leakage breaker to the outdoor unit.This is to avoid electric shocks or fire.For the wiring of outdoor units, refer to the installation manual attached to the outdoor units.Confirm the system type.• Pair type: 1 remote controller controls 1 indoor unit (standard system). (Refer to Fig. 25)• Simultaneous operation system: 1 remote controller controls 2 indoor units(2 indoor units operates equally.) (Refer to Fig. 26)• Group control: 1 remote controller controls up to 4 indoor units(All indoor units operate according to the remote controller). (Refer to Fig. 27)• 2 remote controllers control: 2 remote controllers control 1 indoor unit. (Refer to Fig. 28)NOTE• Terminal numbers of outdoor and indoor units must agree.1 2 3P 1 P 2P1 P 2P 1 P 21 2 3 1 2 3Main power supplyOutdoor unitIndoor unit (Master) Indoor unit (slave)Remotecontroller(Optional accessories)Simultaneous operation systemEarth leakagecircuit breakerNOTE)P 1 P 21 2 3P 1 P21 2 3Main power supplyEarth leakagecircuit breakerOutdoor unitNOTE)Indoor unitRemote controller(Optional accessories)Pair typeP1 P21 2 3 1 2 3 1 2 3P1 P2 P 1 P2 P 1 P 21 2 3 1 2 3 1 2 3Main power supply Main power supply Main power supplyOutdoor unitIndoor unit(Master)Outdoor unitIndoor unitOutdoor unitIndoor unitGroup control remote controller(Optional accessories)Group controlEarth leakagecircuit breakerEarth leakagecircuit breakerEarth leakagecircuit breakerNOTE) NOTE) NOTE)Fig. 25 Fig. 26Fig. 27