Daikin VRV III-S RXYMQ36 48PVJU, Service Manual

Page: 39 / 264

SiUS34-907
30 Function
Part 5
Function
1. Operation Mode ........................................................................................31
2. Basic Control............................................................................................. 32
2.1 Normal Operation ....................................................................................... 32
2.2 Compressor PI Control............................................................................... 33
2.3 Electronic Expansion Valve PI Control....................................................... 34
2.4 Cooling Operation Fan Control................................................................... 35
3. Special Control..........................................................................................36
3.1 Startup Control ........................................................................................... 36
3.2 Oil Return Operation .................................................................................. 37
3.3 Defrosting Operation .................................................................................. 39
3.4 Pump-down Residual Operation ................................................................ 40
3.5 Restart Standby.......................................................................................... 41
3.6 Stopping Operation .................................................................................... 41
4. Protection Control .....................................................................................42
4.1 High Pressure Protection Control............................................................... 42
4.2 Low Pressure Protection Control................................................................ 43
4.3 Discharge Pipe Protection Control ............................................................. 44
4.4 Inverter Protection Control ......................................................................... 45
5. Other Control............................................................................................. 46
5.1 Demand Operation ..................................................................................... 46
5.2 Heating Operation Prohibition .................................................................... 46
6. Outline of Control (Indoor Unit) ................................................................. 46
6.1 Drain Pump Control.................................................................................... 46
6.2 Louver Control for Preventing Ceiling Dirt.................................................. 49
6.3 Thermostat Sensor in Remote Controller................................................... 50
6.4 Freeze Prevention ...................................................................................... 52
6.5 View of Operations of Swing Flaps ............................................................ 53