SiBE04-624 Main FunctionsFunction and Control 592.28 Fan Speed Control for Indoor UnitsControl mode The airflow can be automatically controlled depending on the difference between the settemperature and the room temperature. This is done through speed control and Hall IC control.Phase steps Speed control and fan speed control contains different steps:.= Within this range the airflow rate is automatically controlled when the FAN settingbutton is set to automatic.1. During powerful operation, fan rotates at H tap + 80 rpm.2. Fan stops during defrost operation.3. In time of thermostat OFF, the fan rotates at the following speed.Cooling: The fan keeps rotating at the set tap.Heating: The fan stops.In the above table you can see all the different fan speeds of the indoor units fan motor.When selecting AUTOMATIC air flow control on the remote controller, the indoor fan speed willbe regulated according to the difference between the room temperature and the required setpoint on cooling mode. On heating mode, the indoor fan speed will be regulated according tothe indoor heat exchanger temperature and the difference between the room temperature andthe required set point.CoolingStep Cooling Heating Dry modeLLL28 · 42 · 50kW class :1000 rpmNo powerfulLLSL (Silent)LMLMMHHHH (Powerful)(R4085) (R4085)28 class LLL LL SL L ML M HM H HHCooling --- 590 720 790 890 990 1090 1190 1270Heating 350 590 790 860 970 1080 1190 1300 138042 class LLL LL SL L ML M HM H HHCooling --- 590 750 820 940 1060 1180 1300 1380Heating 350 590 820 890 1000 1110 1220 1340 142050 class LLL LL SL L ML M HM H HHCooling --- 590 790 860 990 1120 1250 1380 1460Heating 350 590 860 950 1070 1190 1310 1440 1520LLMMMH3˚C2˚C1˚C0˚CSet point - room temperature(R5925)
