Daikin RXYQ-TA Series Service Manual page 62

1. Operation Flowchart (Outdoor Unit) ..........................................................51
2. Stop Control ..............................................................................................52
3. Standby Control ........................................................................................53
4. Startup Control ..........................................................................................54
5. Basic Control.............................................................................................56
6. Protection Control .....................................................................................61
7. Special Control..........................................................................................66
8. Outline of Control (Indoor Unit) .................................................................71
49
Functions and Control
2.1 Stop due to Error ........................................................................................ 52
2.2 When System is in Stop Mode ................................................................... 52
2.3 Slave Unit Stops during Master Unit Operation.......................................... 52
3.1 Restart Standby.......................................................................................... 53
3.2 Crankcase Heater Control.......................................................................... 53
4.1 Startup Control in Cooling .......................................................................... 54
4.2 Startup Control in Heating .......................................................................... 55
5.1 Normal Operation ....................................................................................... 56
5.2 Compressor Capacity Control .................................................................... 57
5.3 Operating Priority and Rotation of Compressors........................................ 58
5.4 Compressor Step Control........................................................................... 59
5.5 Electronic Expansion Valve Control ........................................................... 59
5.6 Step Control of Outdoor Fans .................................................................... 60
6.1 High Pressure Protection Control............................................................... 61
6.2 Low Pressure Protection Control................................................................ 62
6.3 Discharge Pipe Protection Control ............................................................. 63
6.4 Compressor Body Protection Control......................................................... 63
6.5 Inverter Protection Control ......................................................................... 64
6.6 Heating Operation Prohibition .................................................................... 65
7.1 Pump Down Residual Operation ................................................................ 66
7.2 Outdoor Unit Rotation................................................................................. 66
7.3 Oil Return Operation .................................................................................. 68
7.4 Defrost Operation ....................................................................................... 70
7.5 Drain Pan Heater (Option).......................................................................... 70
8.1 Operation Flowchart ................................................................................... 71
8.2 Set Temperature and Control Temperature ............................................... 73
8.3 Remote Controller Thermistor .................................................................... 75
8.4 Thermostat Control..................................................................................... 77
8.5 Drain Pump Control.................................................................................... 80
8.6 Control of Electronic Expansion Valve ....................................................... 82
8.7 Freeze-up Prevention................................................................................. 83
8.8 List of Swing Flap Operations .................................................................... 85
SiUS341615E
Part 4
Functions and Control