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SiEN12-710A
1. Introduction .............................................................................................v
1.1 Safety Cautions ........................................................................................v
1.2 Used Icons .............................................................................................. ix
Part 1 List of Functions ................................................................ 1
1. Cooling Only............................................................................................2
2. Heat Pump ..............................................................................................4
Part 2 Specifications .................................................................... 7
1. Cooling Only............................................................................................8
1.1 Indoor Units ..............................................................................................8
1.2 Outdoor Units .........................................................................................10
2. Heat Pump ............................................................................................11
2.1 Indoor Units ............................................................................................11
2.2 Outdoor Units .........................................................................................13
Part 3 Printed Circuit Board Connector Wiring Diagram ........... 15
1. Printed Circuit Board Connector Wiring Diagram..................................16
1.1 Wall Mounted Type ................................................................................16
1.2 Duct Connected Type.............................................................................18
1.3 Outdoor Unit ...........................................................................................20
Part 4 Function and Control........................................................ 23
1. Main Functions......................................................................................24
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11
1.12
1.13
Frequency Principle................................................................................24
Power-Airflow Dual Flaps, Wide-Angle Louvers and Auto-Swing ..........26
Fan Speed Control for Indoor Units........................................................27
Programme Dry Function .......................................................................28
Automatic Operation...............................................................................29
Thermostat Control.................................................................................30
Night Set Mode.......................................................................................31
ECONO Mode ........................................................................................32
INTELLIGENT EYE ................................................................................33
HOME LEAVE Operation .......................................................................35
Inverter POWERFUL Operation .............................................................36
Other Functions......................................................................................37
Function of Thermistor ...........................................................................39
2. Control Specification .............................................................................42
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
ii
Mode Hierarchy ......................................................................................42
Frequency Control..................................................................................43
Controls at Mode Changing / Start-up....................................................46
Discharge Pipe Temperature Control.....................................................48
Input Current Control..............................................................................48
Freeze-up Protection Control .................................................................49
Heating Peak-cut Control .......................................................................49
Fan Control.............................................................................................50
Liquid Compression Protection Function 2.............................................50
Defrost Control .......................................................................................51
Electronic Expansion Valve Control .......................................................52
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