Daikin SkyAir RZR-P Series, Service Manual

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SiUS281117
Function and Control 31
Part 4
Function and Control
1. Function General ..................................................................................32
1.1 Operation Mode ..................................................................................... 32
2. Basic Control.........................................................................................33
2.1 Normal Operation................................................................................... 33
2.2 Compressor PI Control .......................................................................... 34
2.3 Electronic Expansion Valve PI Control .................................................. 35
2.4 Cooling Operation Fan Control .............................................................. 36
3. Special Control......................................................................................37
3.1 Startup Control ....................................................................................... 37
3.2 Oil Return Operation .............................................................................. 38
3.3 Defrosting Operation .............................................................................. 40
3.4 Pump Down Residual Operation............................................................ 41
3.5 Restart Standby ..................................................................................... 42
3.6 Stopping Operation ................................................................................ 42
3.7 Pressure Equalization Prior to Startup ................................................... 43
4. Protection Control .................................................................................44
4.1 High Pressure Protection Control .......................................................... 44
4.2 Low Pressure Protection Control ........................................................... 45
4.3 Discharge Pipe Protection Control ......................................................... 46
4.4 Inverter Protection Control ..................................................................... 47
5. Other Control ........................................................................................48
5.1 Heating Operation Prohibition ................................................................ 48
6. Outline of Control (Indoor Unit) .............................................................49
6.1 Drain Pump Control ............................................................................... 49
6.2 Louver Control for Preventing Ceiling Dirt ............................................. 51
6.3 Room Temperature Thermistor in Remote Controller............................ 52
6.4 Thermostat Control with Operation Mode Set to "AUTO" ...................... 54
6.5 Freeze-up Prevention ............................................................................ 55
6.6 View of Operations of Swing Flaps ........................................................ 56
6.7 Hot Start Control (In Heating Operation Only) ....................................... 57
6.8 Heater Control (FTQ) ............................................................................. 59
6.9 4 Step Thermostat Processing (FTQ) .................................................... 62
6.10 Interlocked with External Equipment (FTQ) ........................................... 63