Daikin Super Multi NX FFQ50B8V1B User Manual

SiBE121021_C
Table of Contents iv
2. Function of Indoor Unit (SA Models) ...................................................104
2.1 Drain Pump Control..............................................................................104
2.2 Thermostat Sensor in Remote Controller.............................................106
2.3 Freeze Prevention Control ...................................................................108
2.4 Hot Start Control (In Heating Operation Only)......................................109
3. Function of Thermistor ........................................................................110
4. Control Specification ...........................................................................112
4.1 Mode Hierarchy ....................................................................................112
4.2 Frequency Control................................................................................113
4.3 Controls at Mode Changing / Start-up..................................................116
4.4 Discharge Pipe Temperature Control...................................................117
4.5 Input Current Control............................................................................118
4.6 Freeze-up Protection Control ...............................................................118
4.7 Heating Peak-cut Control .....................................................................119
4.8 Outdoor Fan Control.............................................................................119
4.9 Liquid Compression Protection Function..............................................120
4.10 Defrost Control .....................................................................................120
4.11 Low Hz High Pressure Limit .................................................................121
4.12 Electronic Expansion Valve Control .....................................................121
4.13 Malfunctions .........................................................................................126
Part 5 Operation Manual ........................................................... 128
1. System Configuration..........................................................................129
2. RA Indoor Unit.....................................................................................130
2.1 FTXG, CTXG Series - ARC466A1 .......................................................130
2.2 FTXS, FVXS Series - ARC452A1, A3 ..................................................154
2.3 ATXS, FLK(X)S, FDK(X)S Series - ARC433B67, B68, B69, B76 ........190
3. SA Indoor Unit - FFQ, FCQ, FDBQ, FBQ, FHQ Series.......................212
3.1 BRC1D528 ...........................................................................................212
3.2 BRC1E51A7 .........................................................................................227
3.3 BRC7E530W/531W, BRC7F532F/533F, BRC7EA63W/66..................272
Part 6 Service Diagnosis...........................................................284
1. Troubleshooting with LED ...................................................................286
1.1 Indoor Unit............................................................................................286
1.2 Outdoor Unit .........................................................................................288
2. Problem Symptoms and Measures .....................................................289
3. Service Check Function ......................................................................290
3.1 RA Indoor Unit - F(C)TXG, FTXS, ATXS, FVXS,
FLK(X)S, FDK(X)S Series ....................................................................290
3.2 SA Indoor Unit - FFQ, FCQ, FDBQ, FBQ, FHQ Series........................299
4. Code Indication on Remote Controller ................................................306
4.1 RA Indoor Unit - F(C)TXG, FTXS, ATXS, FVXS, FLK(X)S,
FDK(X)S Series....................................................................................306
4.2 SA Indoor Unit - FFQ, FCQ, FDBQ, FBQ, FHQ Series........................306
4.3 Outdoor Unit .........................................................................................307
5. Troubleshooting for RA Indoor Unit - F(C)TXG,
FTXS, ATXS, FVXS, FLK(X)S, FDK(X)S Series.................................308
5.1 Indoor Unit PCB Abnormality ...............................................................308
5.2 Freeze-up Protection Control or Heating Peak-cut Control..................309

Daikin Super Multi NX FFQ50B8V1B Specifications

General

Brand	Daikin
Model	Super Multi NX FFQ50B8V1B
Category	Air Conditioner
Language	English