Daikin FTXS09HVJU - Installation Site and Electrical Safety

SiUS04-904
Table of Contents iii
3.2 Frequency Control..................................................................................... 36
3.3 Controls at Mode Changing / Start-up....................................................... 38
3.4 Discharge Pipe Temperature Control........................................................ 40
3.5 Input Current Control................................................................................. 40
3.6 Freeze-up Protection Control .................................................................... 41
3.7 Heating Peak-cut Control .......................................................................... 42
3.8 Fan Control................................................................................................ 42
3.9 Liquid Compression Protection Function 2................................................ 42
3.10 Defrost Control .......................................................................................... 43
3.11 Electronic Expansion Valve Control .......................................................... 44
3.12 Malfunctions .............................................................................................. 47
3.13 Forced Operation Mode ............................................................................ 48
3.14 Additional Functions .................................................................................. 48
4. Control Specification (15/18/24 Class)..................................................... 49
4.1 Mode Hierarchy ......................................................................................... 49
4.2 Frequency Control..................................................................................... 50
4.3 Controls at Mode Changing / Start-up....................................................... 52
4.4 Discharge Pipe Temperature Control........................................................ 53
4.5 Input Current Control................................................................................. 53
4.6 Freeze-up Protection Control .................................................................... 54
4.7 Heating Peak-cut Control .......................................................................... 54
4.8 Fan Control................................................................................................ 55
4.9 Liquid Compression Protection Function 2................................................ 55
4.10 Low Hz High Pressure Limit ...................................................................... 55
4.11 Defrost Control .......................................................................................... 56
4.12 Electronic Expansion Valve Control .......................................................... 57
4.13 Malfunctions .............................................................................................. 59
4.14 Forced Operation Mode ............................................................................ 61
4.15 Additional Functions .................................................................................. 61
Part 5
Operation Manual ................................................................62
1. System Configuration............................................................................... 63
2. FTXS09/12HVJU...................................................................................... 64
3. FTXS15/18/24HVJU................................................................................. 77
Part 6
Service Diagnosis................................................................91
1. Caution for Diagnosis...............................................................................92
2. Problem Symptoms and Measures .......................................................... 94
3. Service Check Function ........................................................................... 95
4. Troubleshooting .......................................................................................98
4.1 Error Codes and Description ..................................................................... 98
4.2 Indoor Unit PCB Abnormality .................................................................... 99
4.3 Freeze-up Protection Control or High Pressure Control.......................... 100