¢ System diagrams• 1 remote controllerIndoor unitRemote controllerA• 4 remote controllersRemote controllersMaster SlaveIndoor unitB CSlaveDSlaveENOTES:• A, B, C, D, E: Remote controller cable (For details of controller cable specifications, refer to"Controller cable" in Chapter 6. SYSTEM DESIGN on page 06-62.)• A ≤ 1,640 ft (500 m), B + C + D + E ≤ 1,640 ft (500 m)¢ Electrical wiring1 remote controller:When there isa functionalgroundingRemote controllerIndoor unitY1Y1Y2Y2Y3 2 remote controllers:When there isa functionalgroundingRemote controller Remote controllerY1Y1Y2Y2Y1Y2Y3 Indoor unitGroup control:When there isa functional groundingRemote controllerIndoor unitsY2Y2 Y2 Y2 Y2Y3 Y3 Y3 Y3Y1Y1 Y1 Y1 Y12-8. Simple remote controller (With operation mode: UTY-RSRY) - (05-69) - 2. Control unitsCONTROLSYSTEMCONTROLSYSTEM