Daikin EWAQ021BAW - Part 2 - Functional Description

ESIE11-05
Functional Description 39
Part 2
Functional Description
1. Function General...................................................................................40
1.1 Symbol ...................................................................................................40
1.2 Operation Mode......................................................................................41
2. Basic Control.........................................................................................42
2.1 Normal Operation ...................................................................................42
2.2 Compressor PI Control...........................................................................43
2.3 Electronic Expansion Valve PI Control...................................................44
2.4 Step Control of Outdoor Unit Fans .........................................................45
2.5 Outdoor Unit Fan Control in Cooling Operation .....................................46
3. Special Control......................................................................................47
3.1 Startup Control .......................................................................................47
3.2 Defrosting Operation ..............................................................................49
3.3 Pump-down Residual Operation ............................................................50
3.4 Standby ..................................................................................................51
3.5 Stopping Operation ................................................................................52
4. Protection Control .................................................................................53
4.1 High Pressure Protection Control...........................................................53
4.2 Low Pressure Protection Control............................................................54
4.3 Discharge Pipe Protection Control .........................................................55
4.4 Inverter Protection Control .....................................................................56
4.5 STD Compressor Overload Protection...................................................57
5. Other Control.........................................................................................58
5.1 Emergency Operation ............................................................................58
5.2 Demand Operation .................................................................................61
6. Outline of Control (Hydrobox) ...............................................................62
6.1 Freeze Prevention ..................................................................................62
6.2 Thermostat Control.................................................................................63
6.3 Flow Control ...........................................................................................64
7. Field Setting from Outdoor Unit.............................................................65
7.1 Field Setting from Outdoor Unit..............................................................65
7.2 “Setting Mode 1”.....................................................................................70
7.3 “Setting Mode 2”.....................................................................................71
7.4 Monitor Mode .........................................................................................75
7.5 Setting of Low Noise Operation and Demand Operation .......................76
7.6 Setting of Refrigerant Recovery Mode ...................................................81
7.7 Setting of Vacuuming Mode ...................................................................82
8. Remote Controller .................................................................................83
8.1 Temperature Read Out for Remote Control ...........................................83
8.2 Field Setting ...........................................................................................84
8.3 Weekly Schedual....................................................................................97