Daikin FTKS50BVMB, Service Manual

Page: 106 / 456

SiEN18-622
Function 93
Part 5
Function
1. Operation Mode ....................................................................................94
2. Basic Control.........................................................................................95
2.1 Normal Operation ...................................................................................95
2.2 Compressor PI Control...........................................................................96
2.3 Electronic Expansion Valve PI Control...................................................99
2.4 Cooling Operation Fan Control.............................................................100
3. Special Control....................................................................................101
3.1 Startup Control .....................................................................................101
3.2 Oil Return Operation ............................................................................102
3.3 Defrosting Operation ............................................................................104
3.4 Pump-down Residual Operation ..........................................................105
3.5 Restart Standby....................................................................................105
3.6 Stopping Operation ..............................................................................106
4. Protection Control ...............................................................................107
4.1 High Pressure Protection Control.........................................................107
4.2 Low Pressure Protection Control..........................................................108
4.3 Discharge Pipe Protection Control .......................................................109
4.4 Inverter Protection Control ...................................................................110
4.5 Freeze-up Protection Control ...............................................................111
4.6 Dew Condensation Prevention Control ................................................112
5. Other Control.......................................................................................113
5.1 Demand Operation ...............................................................................113
5.2 Heating Operation Prohibition ..............................................................113
6. BP Unit Control ...................................................................................114
6.1 BP Unit Command Conversion ............................................................114
6.2 BP Unit Electronic Expansion Valve Control ........................................115
6.3 SH Control in Cooling Operation ..........................................................117
6.4 SC Control in Heating Operation..........................................................118
6.5 Heat Exchanger Isothermal Control in Heating Operation ...................118
7. Indoor Unit (RA Models)......................................................................119
7.1 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing ........119
7.2 Fan Speed Control for Indoor Units......................................................120
7.3 Programme Dry Function .....................................................................121
7.4 Automatic Operation.............................................................................122
7.5 Thermostat Control...............................................................................123
7.6 Night Set Mode.....................................................................................124
7.7 ECONO Mode ......................................................................................125
7.8 MOLD PROOF Operation ....................................................................125
7.9 INTELLIGENT EYE (Wall Mounted Type Only) ...................................126
7.10 HOME LEAVE Operation .....................................................................128
7.11 Inverter POWERFUL Operation ...........................................................129
7.12 Other Functions....................................................................................130
8. Indoor Unit (SkyAir Models) ................................................................132
8.1 Function Outline ...................................................................................132
8.2 Electric Function Parts .........................................................................133
8.3 Function Details....................................................................................134