SiUS331604E Outline of Control (Indoor Unit)Functions and Control 52Isoutlet airtemperature drop protectionin progress?Is test runin progress?Restartprevention operatingin progress?(4 min.)Is hotstarting in progress?Isdefrost operation inprogress?Program dry operation Heating OperationFan OperationThermostat statusAAAOFFYesONNo∗7∗8∗9∗10∗11Thermostat statusNoNo∗14∗15(Option)(Option) (Option) (Option) (Option)(Option): OFFMP: OFF52HHumidifier : OFFMu: OFF52HHumidifier : ON: OFFHumidifier : OFF: ONHumidifier : ONMu52HMu: OFF52HHumidifier : OFFMu52HMu(option): OFFMPFan :Operating in L modeMFFan : Operatingin L mode after it stops for 6 min.MF20E :Drain pump kit20E :MPSwing flapSwing flap Set wind directionFan MF:Operating with set airflow rate20E :YesYesNoNoNo∗12∗13∗12YesYesYesSwing flap?Swing flap Set wind directionFan :Operating with set airflow rateMF20E :20E : 20E :Fan :LL operationMF Fan :Operating in L modeMF Fan :StopMFSuction air temperatureba(3)(2)(1)ClosedDEFROST/HOT STARTindicating lamp: OFFClosedDEFROST/HOT STARTindicating lamp: ON∗9. Fan operationBy setting the remote controller to Fan, the fanwill operate with thermostat OFF in settemperature control operation mode.∗10. Set wind directionAccording to wind direction instruction from theremote controller, the wind direction is set to100% horizontal while in heating operation.∗11. FanAccording to fan speed instruction from theremote controller, the fan is put into operationin LL mode while in heating operation.∗12. Wind directionWhen the heating thermostat turns OFF, the wind direction will be set to 100% horizontal.∗13. Hot startIf the condenser inlet temperature exceeds 34°C (93.2°F) at the time of starting operation orafter the completion of defrost operation, or until 3 minutes pass or Tc is above 52°C (125.6°F),hot starting will be conducted.∗14. Thermostat status∗15. Outlet air temperature drop protectionWhen the set temperature is below 24°C (75.2°F) or the electronic expansion valve opening issmall, the protection will be activated.Programdry displayElectronicexpansion valveSuperheated degree controlElectronicexpansion valveClosedDrainpump kitElectronic expansion valveCapacity controlElectronicexpansion valveOpenElectronicexpansion valveElectronicexpansion valveDrainpump kit: OFF after 5-min.residual operation∗7. Program dry displayNo set temperature and airflow rate of theremote controller are displayed.∗8. Thermostat statusSet temperature when operating the programdry mechanism.Aux.electric heaterAux.electric heaterAux.electric heaterAux.electric heater Aux.electric heater–2˚C (28.4˚F)–4˚C (24.8˚F)Suction air temp.Set temp.ba(3)(2)(1)
