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SiBE18-821_C
iii
Table of Contents
2.4
Cooling Operation Fan Control...............................................................81
3. Special Control......................................................................................82
3.1
Startup Control .......................................................................................82
3.2
Oil Return Operation ..............................................................................83
3.3
Defrosting Operation ..............................................................................85
3.4
Pump-down Residual Operation ............................................................86
3.5
Restart Standby......................................................................................87
3.6
Stopping Operation ................................................................................87
4. Protection Control .................................................................................88
4.1
High Pressure Protection Control...........................................................88
4.2
Low Pressure Protection Control............................................................89
4.3
Discharge Pipe Temperature Protection Control....................................90
4.4
Inverter Protection Control .....................................................................91
4.5
Freeze-up Protection Control .................................................................92
4.6
Dew Condensation Prevention Control ..................................................93
5. Other Control.........................................................................................94
5.1
Demand Control .....................................................................................94
5.2
Heating Operation Prohibition Control....................................................94
6. BP Unit Control .....................................................................................95
6.1
BP Unit Command Conversion ..............................................................95
6.2
BP Unit Electronic Expansion Valve Control ..........................................96
6.3
SH Control in Cooling Operation ............................................................98
6.4
SC Control in Heating Operation............................................................99
6.5
Heat Exchanger Isothermal Control in Heating Operation .....................99
7. Indoor Unit Control (RA Models) .........................................................100
7.1
Temperature Control ............................................................................100
7.2
Operation Starting Control....................................................................101
7.3
Airflow Direction Control.......................................................................102
7.4
Fan Speed Control for Indoor Units......................................................104
7.5
Program Dry Operation ........................................................................105
7.6
Automatic Operation.............................................................................106
7.7
Thermostat Control...............................................................................107
7.8
NIGHT SET Mode ................................................................................109
7.9
ECONO Operation ...............................................................................110
7.10 HOME LEAVE Operation .....................................................................111
7.11 2-Area INTELLIGENT EYE Operation .................................................112
7.12 INTELLIGENT EYE Operation .............................................................114
7.13 Inverter POWERFUL Operation ...........................................................115
7.14 Other Functions....................................................................................117
8. Indoor Unit Control (SA Models) .........................................................119
8.1
Drain Pump Control..............................................................................119
8.2
Thermostat Sensor in Remote Controller.............................................121
8.3
Freeze Prevention Control ...................................................................123
8.4
Hot Start Control (In Heating Operation Only)......................................124
Part 6 Test Operation and Field Settings................................. 125
1. Test Operation ....................................................................................126
1.1
Procedure and Outline .........................................................................126
1.2
Operation when Power is Turned On ...................................................128
1.3
Outdoor Unit PCB Layout.....................................................................129
1.4
BP Unit .................................................................................................130