Daikin FXM125LVE [54/254] Part 4 function

Si38-606

Function 43

Part 4

Function

1. Operation Mode ....................................................................................44

2. Basic Control.........................................................................................45

2.1 Normal Operation ...................................................................................45

2.2 Compressor PI Control...........................................................................46

2.3 Electronic Expansion Valve PI Control...................................................47

2.4 Cooling Operation Fan Control...............................................................48

3. Special Control......................................................................................49

3.1 Startup Control .......................................................................................49

3.2 Oil Return Operation ..............................................................................50

3.3 Pump-down Residual Operation ............................................................51

3.4 Restart Standby......................................................................................52

3.5 Stopping Operation ................................................................................53

3.6 Pressure Equalization prior to Startup....................................................54

4. Protection Control .................................................................................55

4.1 High Pressure Protection Control...........................................................55

4.2 Low Pressure Protection Control............................................................56

4.3 Discharge Pipe Protection Control .........................................................57

4.4 Inverter Protection Control .....................................................................58

4.5 STD Compressor Overload Protection...................................................59

4.6 Crankcase Heater Control......................................................................59

5. Other Control.........................................................................................60

5.1 Emergency Operation ............................................................................60

5.2 Demand Operation .................................................................................61

6. Outline of Control (Indoor Unit) .............................................................62

6.1 Drain Pump Control................................................................................62

6.2 Louver Control for Preventing Ceiling Dirt..............................................64

6.3 Thermostat Sensor in Remote Controller...............................................65

6.4 Freeze Prevention ..................................................................................67