Part 4 Functions And Control - Daikin FT25CV1A Service Manual

Si01-406
1. Functions of Cooling Only Models ........................................................22
2. Functions of Heat Pump Models ...........................................................29
3. Control for Heat Pump Models..............................................................39
Functions and Control
Functions and Control Functions and Control Functions and Control Functions and Control
1.1 Cooling Monitoring Function...................................................................22
1.2 Programme Dry Function .......................................................................23
1.3 Freeze-up Protection Control .................................................................24
1.4 Air Flow Rate Control .............................................................................25
1.5 Power-Airflow Dual Flaps, Wide-Angle Louvers, and Auto-Swing .........25
1.6 Signal Receiving Sign ............................................................................26
1.7 ON / OFF Button on Indoor Unit.............................................................26
1.8 Filters......................................................................................................26
1.9 Night Set Mode.......................................................................................27
1.10 Powerful Operation.................................................................................27
1.11 3-minutes Standby Function...................................................................27
1.12 Auto-restart Function..............................................................................28
1.13 Test Run Function ..................................................................................28
2.1 Frequency Principle................................................................................29
2.2 Power-Airflow Dual Flaps, Wide-Angle Louvers and Auto-Swing ..........31
2.3 Fan Speed Control for Indoor Units........................................................32
2.4 Programme Dry Function .......................................................................33
2.5 Automatic Operation...............................................................................34
2.6 Night Set Mode.......................................................................................35
2.7 Powerful Operation.................................................................................36
2.8 Other Functions......................................................................................37
2.9 Function of Thermistor ...........................................................................38
3.1 Mode Hierarchy ......................................................................................39
3.2 Frequency Control..................................................................................40
3.3 Controls at Mode Changing / Start-up....................................................42
3.4 Input Current Control..............................................................................43
3.5 Freeze-up Protection Control .................................................................43
3.6 Heating Peak-cut Control .......................................................................44
3.7 Fan Control.............................................................................................44
3.8 Liquid Compression Protection Function 1
(Securing of Differential Pressure and Blown Air Temperature) ............45
3.9 Liquid Compression Protection Function 2.............................................46
3.10 Defrost Control .......................................................................................46
3.11 Insufficient Gas Control ..........................................................................47
3.12 Forced Operation Mode .........................................................................48
3.13 Additional Function.................................................................................48
Part 4 Part 4 Part 4 Part 4
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