5ReceiverFront side Rear sideOperation Panel1. ReceiverReceives the signal sent from the remotecontroller.2. Emergency operation buttonIndicator lampsWhen an error occurs, one of the lampsflashes. When an indicator lamp is flashing,refer to “Before Requesting Service”.3. OPERATION lampLights up when the unit is operating.4. TIMER lampLights up when the timer is set.5. STANDBY lamp• The lamp in the HEAT mode lights up atthe following times: during the startup,during the thermostat operation, andduring the defrosting.• The lamp flashes when an error occurs.6. FILTER lampThis lamp is for notifying you when the filterneeds to be cleaned.7. Address switchUsed to set the remote controlleraddresses. (Refer to the installationinstructions for details of the addresssetting switch.)Note• If non-cooling/heating free type is beingused, it will beep twice and the operatinglamp will light up on the display; if the timerand standby lamps blink alternately, aconflict between the heating and coolingexists, so the unit cannot operate in thedesired mode. (On models that do not havean Auto function, even if Auto is selected, itworks in the same way.)• When the local operation is disabled bycentralized control or similar cause, and ifthe Start/Stop , Mode or Temperaturesetting button is pressed, the unitwill beep five times and the change will notbe made.CZ-RWSC3CZ-RWSD2CZ-RWSU2NCZ-RWSU3CZ-RWST3N1543212543123 4 5CZ-RWSL2N15432 1 2 3 41273456ADDRESS 1ADDRESS 2ADDRESS 3REM SUB/MAIN3 4 5127TIMEROPERATIONSTANDBY 122345345CZ-RWSK2 (For wall mounted type indoor unit)Display