MXS Service Manual

SiUS121736EA
Functions and Control 46
Part 4
Functions and Control
1. Common Functions ...................................................................................48
1.1 Temperature Control .................................................................................. 48
1.2 Frequency Principle.................................................................................... 48
2. RA Indoor Unit Functions ..........................................................................50
2.1 Airflow Direction Control............................................................................. 50
2.2 Fan Speed Control for Indoor Unit ............................................................. 54
2.3 Program Dry Operation .............................................................................. 55
2.4 Automatic Operation................................................................................... 56
2.5 Thermostat Control..................................................................................... 57
2.6 NIGHT SET Mode ...................................................................................... 58
2.7 ECONO Operation ..................................................................................... 59
2.8 2-Area INTELLIGENT EYE Operation ....................................................... 60
2.9 INTELLIGENT EYE Operation ................................................................... 62
2.10 POWERFUL Operation .............................................................................. 63
2.11 Multi-Monitor Lamp/TIMER Lamp .............................................................. 64
2.12 Clock Setting .............................................................................................. 65
2.13 WEEKLY TIMER Operation ....................................................................... 66
2.14 Other Functions.......................................................................................... 72
3. SA Indoor Unit Functions ..........................................................................74
3.1 Airflow Direction Control............................................................................. 74
3.2 Fan Speed Control for Indoor Unit ............................................................. 75
3.3 Program Dry Operation .............................................................................. 76
3.4 Clock and Calendar Setting (With Wired Remote Controller BRC1E73) ... 77
3.5 Schedule TIMER Operation (With Wired Remote Controller BRC1E73) ... 79
3.6 Setback Function (With Wired Remote Controller BRC1E73) ................... 83
3.7 Drain Pump Control.................................................................................... 83
3.8 Hot Start Control (In Heating Operation Only)............................................ 85
3.9 Presence and Floor Sensors (Option)........................................................ 86
3.10 Other Functions.......................................................................................... 89
4. Control Specification .................................................................................90
4.1 Thermistor Functions.................................................................................. 90
4.2 Mode Hierarchy .......................................................................................... 92
4.3 Frequency Control...................................................................................... 93
4.4 Controls at Mode Changing/Start-up.......................................................... 95
4.5 Discharge Pipe Temperature Control......................................................... 96
4.6 Input Current Control.................................................................................. 97
4.7 Freeze-up Protection Control ..................................................................... 98
4.8 Heating Peak-cut Control ......................................................................... 100
4.9 Outdoor Fan Control................................................................................. 101
4.10 Liquid Compression Protection Function.................................................. 101
4.11 Defrost Control ......................................................................................... 102