Daikin Super Multi NX FLKS25BAVMB, Service Manual, Page: 3 / 144

SiBE05-722EE
Table of Contents ii
1. Safety Cautions.......................................................................................v
1.1 Warnings and Cautions Regarding Safety of Workers.............................v
1.2 Warnings and Cautions Regarding Safety of Users............................... vii
2. Icons Used ............................................................................................. ix
Part 1 List of Functions ................................................................ 1
1. Functions.................................................................................................2
Part 2 Specifications .................................................................... 7
1. Specifications ..........................................................................................8
1.1 Cooling Only.............................................................................................8
1.2 Heat Pump .............................................................................................11
Part 3 Printed Circuit Board Connector Wiring Diagram ...........18
1. Indoor Unit.............................................................................................19
2. Outdoor Unit..........................................................................................21
2.1 RK(X)S25/35E2V1B ...............................................................................21
2.2 RK(X)S25/35G2V1B...............................................................................23
2.3 RK(X)S25/35G2V1B9, RXS25/35J2V1B, RXS25K3V1B, RXS35K2V1B,
RXS25/35L2V1B ....................................................................................25
2.4 RXS25/35L3V1B ....................................................................................27
Part 4 Functions and Control......................................................28
1. Main Functions......................................................................................29
1.1 Temperature Control ..............................................................................29
1.2 Frequency Principle................................................................................29
1.3 Airflow Direction Control.........................................................................31
1.4 Fan Speed Control for Indoor Unit .........................................................31
1.5 Program Dry Operation ..........................................................................32
1.6 Automatic Operation...............................................................................33
1.7 Thermostat Control.................................................................................34
1.8 NIGHT SET Mode ..................................................................................35
1.9 HOME LEAVE Operation .......................................................................36
1.10 Inverter POWERFUL Operation .............................................................37
1.11 Clock Setting ..........................................................................................38
1.12 Other Functions......................................................................................39
2. Thermistor Functions ............................................................................40
3. Control Specification .............................................................................41
3.1 Mode Hierarchy ......................................................................................41
3.2 Frequency Control..................................................................................42
3.3 Controls at Mode Changing / Start-up....................................................44
3.4 Discharge Pipe Temperature Control.....................................................46
3.5 Input Current Control..............................................................................47
3.6 Freeze-up Protection Control .................................................................48
3.7 Heating Peak-cut Control .......................................................................48
3.8 Outdoor Fan Control...............................................................................49
3.9 Liquid Compression Protection Function................................................49