Daikin BPMKS048A2U - Protection Controls

SiUS181305E
39 Function
Part 5
Function
1. Operation Mode ........................................................................................39
2. Basic Control.............................................................................................40
2.1 Normal Operation ....................................................................................... 40
2.2 Compressor PI Control............................................................................... 40
2.3 Electronic Expansion Valve PI Control....................................................... 41
2.4 Cooling Operation Fan Control................................................................... 42
3. Special Control..........................................................................................43
3.1 Startup Control ........................................................................................... 43
3.2 Oil Return Operation .................................................................................. 44
3.3 Defrosting Operation .................................................................................. 46
3.4 Pump-down Residual Operation ................................................................ 46
3.5 Restart Standby.......................................................................................... 47
3.6 Stopping Operation .................................................................................... 47
4. Protection Control .....................................................................................48
4.1 High Pressure Protection Control............................................................... 48
4.2 Low Pressure Protection Control................................................................ 49
4.3 Discharge Pipe Temperature Protection Control........................................ 50
4.4 Inverter Protection Control ......................................................................... 51
4.5 Freeze-up Protection Control ..................................................................... 52
4.6 Dew Condensation Prevention Control ...................................................... 53
5. Other Control.............................................................................................54
5.1 Demand Control ......................................................................................... 54
5.2 Heating Operation Prohibition Control........................................................ 54
6. Branch Provider (BP) Unit Control ............................................................55
6.1 Branch Provider (BP) Unit Command Conversion ..................................... 55
6.2 Branch Provider (BP) Unit Electronic Expansion Valve Control................. 56
6.3 SH Control in Cooling Operation ................................................................ 58
6.4 SC Control in Heating Operation................................................................ 59
6.5 Heat Exchanger Isothermal Control in Heating Operation ......................... 59
7. Function of CTXS, FTXS, CDXS, FDXS Series........................................60
7.1 Temperature Control .................................................................................. 60
7.2 Airflow Direction Control (CTXS/FTXS Series Only) .................................. 61
7.3 Fan Speed Control for Indoor Unit ............................................................. 63
7.4 Program Dry Operation .............................................................................. 64
7.5 Automatic Operation................................................................................... 65
7.6 Thermostat Control..................................................................................... 66
7.7 NIGHT SET Mode ...................................................................................... 67
7.8 ECONO Operation ..................................................................................... 67
7.9 HOME LEAVE Operation ........................................................................... 68
7.10 INTELLIGENT EYE Operation ................................................................... 70
7.11 Inverter POWERFUL Operation ................................................................. 71