Part 5 - Function - Daikin ERSQ 011AAV1 Service Manual

ESIE09-08
1. Operation Mode ....................................................................................48
2. Basic Control.........................................................................................49
3. Special Control......................................................................................52
4. Protection Control .................................................................................56
5. Other Control.........................................................................................63
6. Outline of Control (Indoor Unit) .............................................................64
Function

Part 5 - Function

2.1 Normal Operation ...................................................................................49
2.2 Compressor PI Control...........................................................................50
2.3 Electronic Expansion Valve PI Control R-410A circuit ...........................51
2.4 Electronic Expansion Valve PI Control R-134a circuit............................51
3.1 Startup Control .......................................................................................52
3.2 Defrosting Operation ..............................................................................53
3.3 Pump-down Residual Operation ............................................................54
3.4 Stopping Operation ................................................................................55
4.1 High Pressure Protection Control...........................................................56
4.2 Low Pressure Protection Control............................................................58
4.3 Discharge Pipe Protection Control .........................................................60
4.4 Inverter Protection Control .....................................................................61
5.1 Heating Operation Prohibition ................................................................63
5.2 Inverter Fan Control (Switch Box Fan) ...................................................63
5.3 Crankcase Heater ..................................................................................63
6.1 Freeze Prevention ..................................................................................64
6.2 Simultaneous demand of space heating and domestic water heating ...65
47