SiEN18-622iv Table of Contents3. Special Control....................................................................................1013.1 Startup Control .....................................................................................1013.2 Oil Return Operation ............................................................................1023.3 Defrosting Operation ............................................................................1043.4 Pump-down Residual Operation ..........................................................1053.5 Restart Standby....................................................................................1053.6 Stopping Operation ..............................................................................1064. Protection Control ...............................................................................1074.1 High Pressure Protection Control.........................................................1074.2 Low Pressure Protection Control..........................................................1084.3 Discharge Pipe Protection Control .......................................................1094.4 Inverter Protection Control ...................................................................1104.5 Freeze-up Protection Control ...............................................................1114.6 Dew Condensation Prevention Control ................................................1125. Other Control.......................................................................................1135.1 Demand Operation ...............................................................................1135.2 Heating Operation Prohibition ..............................................................1136. BP Unit Control ...................................................................................1146.1 BP Unit Command Conversion ............................................................1146.2 BP Unit Electronic Expansion Valve Control ........................................1156.3 SH Control in Cooling Operation ..........................................................1176.4 SC Control in Heating Operation..........................................................1186.5 Heat Exchanger Isothermal Control in Heating Operation ...................1187. Indoor Unit (RA Models)......................................................................1197.1 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ........1197.2 Fan Speed Control for Indoor Units......................................................1207.3 Programme Dry Function .....................................................................1217.4 Automatic Operation.............................................................................1227.5 Thermostat Control...............................................................................1237.6 Night Set Mode.....................................................................................1247.7 ECONO Mode ......................................................................................1257.8 MOLD PROOF Operation ....................................................................1257.9 INTELLIGENT EYE (Wall Mounted Type Only) ...................................1267.10 HOME LEAVE Operation .....................................................................1287.11 Inverter POWERFUL Operation ...........................................................1297.12 Other Functions....................................................................................1308. Indoor Unit (SkyAir Models) ................................................................1328.1 Function Outline ...................................................................................1328.2 Electric Function Parts .........................................................................1338.3 Function Details....................................................................................134Part 6 Test Operation ............................................................... 1451. Test Operation ....................................................................................1461.1 Procedure and Outline .........................................................................1462. Outdoor Unit PCB Layout....................................................................1513. Field Setting ........................................................................................1523.1 Field Setting from Outdoor Unit............................................................1523.2 Detail of Setting Mode ..........................................................................1614. Field Setting for SkyAir Indoor Unit .....................................................1704.1 Explanation...........................................................................................1704.2 Field Setting .........................................................................................171
