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SiBE12-816_D
iii
Table of Contents
2.3
Freeze Prevention Control .....................................................................77
2.4
Hot Start Control (In Heating Operation Only)........................................78
3. Function of Thermistor ..........................................................................79
4. Control Specification .............................................................................81
4.1
Mode Hierarchy ......................................................................................81
4.2
Frequency Control..................................................................................83
4.3
Controls at Mode Changing / Start-up....................................................86
4.4
Discharge Pipe Temperature Control.....................................................87
4.5
Input Current Control..............................................................................88
4.6
Freeze-up Protection Control .................................................................88
4.7
Heating Peak-cut Control .......................................................................89
4.8
Outdoor Fan Control...............................................................................89
4.9
Liquid Compression Protection Function................................................90
4.10 Defrost Control .......................................................................................90
4.11 Electronic Expansion Valve Control .......................................................91
4.12 Malfunctions ...........................................................................................95
Part 5 Operation Manual .............................................................98
1. System Configuration............................................................................99
2. RA Indoor Unit.....................................................................................100
2.1
FTXG-J, CTXG-J Series - ARC466A1 .................................................100
2.2
FTXS, FVXS Series - ARC452A1, A3 ..................................................122
2.3
FTXG-E, CTXG-E, FLK(X)S, FDK(X)S Series
- ARC433B41, B67, B68, B69, B76......................................................149
3. SA Indoor Unit - FFQ Series ...............................................................168
3.1
BRC1D528 ...........................................................................................168
3.2
BRC7E530W/531W..............................................................................183
Part 6 Service Diagnosis...........................................................195
1. Troubleshooting with LED ...................................................................197
1.1
Indoor Unit............................................................................................197
1.2
Outdoor Unit .........................................................................................198
2. Problem Symptoms and Measures .....................................................199
3. Service Check Function ......................................................................200
3.1
RA Indoor Unit - F(C)TXG, FTXS, FVXS, FLK(X)S,
FDK(X)S Series....................................................................................200
3.2
SA Indoor Unit - FFQ Series ................................................................209
4. Code Indication on Remote Controller ................................................213
4.1
RA Indoor Unit - F(C)TXG, FTXS, FVXS, FLK(X)S,
FDK(X)S Series....................................................................................213
4.2
SA Indoor Unit - FFQ Series ................................................................213
4.3
Outdoor Unit .........................................................................................214
5. Troubleshooting for RA Indoor Unit - F(C)TXG, FTXS, FVXS,
FLK(X)S, FDK(X)S Series...................................................................215
5.1
Indoor Unit PCB Abnormality ...............................................................215
5.2
Freeze-up Protection Control or Heating Peak-cut Control ..................216
5.3
Fan Motor or Related Abnormality .......................................................218
5.4
Thermistor or Related Abnormality (Indoor Unit)..................................221
5.5
Front Panel Open / Close Fault (FTXG, CTXG)...................................222