Daikin VRVIII-S, Service Manual

Page: 50 / 266

SiENBE34-703
Function 39
Part 5
Function
1. Operation Mode ....................................................................................40
2. Basic Control.........................................................................................41
2.1 Normal Operation ...................................................................................41
2.2 Compressor PI Control...........................................................................42
2.3 Electronic Expansion Valve PI Control...................................................43
2.4 Cooling Operation Fan Control...............................................................44
3. Special Control......................................................................................45
3.1 Startup Control .......................................................................................45
3.2 Oil Return Operation ..............................................................................46
3.3 Defrosting Operation ..............................................................................48
3.4 Pump-down Residual Operation ............................................................49
3.5 Restart Standby......................................................................................50
3.6 Stopping Operation ................................................................................51
4. Protection Control .................................................................................52
4.1 High Pressure Protection Control...........................................................52
4.2 Low Pressure Protection Control............................................................53
4.3 Discharge Pipe Protection Control .........................................................54
4.4 Inverter Protection Control .....................................................................55
5. Other Control.........................................................................................56
5.1 Demand Operation .................................................................................56
5.2 Heating Operation Prohibition ................................................................56
6. Outline of Control (Indoor Unit) .............................................................57
6.1 Drain Pump Control................................................................................57
6.2 Louver Control for Preventing Ceiling Dirt..............................................59
6.3 Thermostat Sensor in remote control .....................................................60
6.4 Freeze Prevention ..................................................................................62
6.5 View of Operations of Swing Flaps ........................................................63
6.6 Electronic Expansion Valve Control .......................................................64
6.7 Hot Start Control (In Heating Operation Only)........................................64