SiUS34-801A_bIndoor Unit 269Part 4Indoor Unit1. Specifications ..........................................................................................2702. Refrigerant Circuit ...................................................................................2843. Operation Flow Chart ..............................................................................2854. Thermostat Sensor in Remote Controller................................................2874.1 Thermostat Control While in Normal Operation ....................................... 2894.2 Thermostat Control in Dry Operation ....................................................... 2894.3 Thermostat Control with Operation Mode Set to AUTO ........................... 2905. Drain Pump Control.................................................................................2915.1 When the Float Switch is Tripped while the Cooling Thermostat is ON: .. 2915.2 When the Float Switch is Tripped while the Cooling Thermostat is OFF: 2915.3 When the Float Switch is Tripped During Heating Operation:.................. 2925.4 When the Float Switch is Tripped and “AF” is Displayed on the Remote Con-troller: ....................................................................................................... 2926. Control of Electronic Expansion Valve ....................................................2937. Freeze Prevention...................................................................................2948. Heater Control (Optional PC Board KRP1B ... is required.)....................2959. List of Louver Operations ........................................................................29610.Hot Start Control (In Heating Operation Only) ........................................29711.Louver Control for Preventing Ceiling Dirt...............................................29812.Field Setting ............................................................................................29912.1 Field Setting from Remote Controller ....................................................... 299
