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SiBE041102_A

Function and Control 9

Part 4

Function and Control

1. Main Functions......................................................................................10

1.1 Temperature Control ..............................................................................10

1.2 Frequency Principle................................................................................10

1.3 Airflow Direction Control.........................................................................12

1.4 Fan Speed Control for Indoor Unit .........................................................13

1.5 Program Dry Operation ..........................................................................14

1.6 Automatic Operation...............................................................................15

1.7 Thermostat Control.................................................................................16

1.8 NIGHT SET Mode ..................................................................................17

1.9 ECONO Operation .................................................................................18

1.10 Inverter POWERFUL Operation .............................................................19

1.11 Other Functions......................................................................................20

2. Function of Thermistor ..........................................................................21

3. Control Specification .............................................................................22

3.1 Mode Hierarchy ......................................................................................22

3.2 Frequency Control..................................................................................23

3.3 Controls at Mode Changing / Start-up....................................................25

3.4 Discharge Pipe Temperature Control.....................................................26

3.5 Input Current Control..............................................................................27

3.6 Freeze-up Protection Control .................................................................28

3.7 Heating Peak-cut Control .......................................................................28

3.8 Outdoor Fan Control...............................................................................29

3.9 Liquid Compression Protection Function................................................29

3.10 Defrost Control .......................................................................................30

3.11 Electronic Expansion Valve Control .......................................................31

3.12 Malfunctions ...........................................................................................34

Daikin FTXN35KEV1B Service Manual

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