Daikin FXLQ20MVE [3/312] Part 5 test operation 9
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Daikin FXLQ20MVE [3/312] Part 5 test operation 9

Daikin FXFQ50MVE [3/312] Part 5 test operation 9
Si39-302
ii Table of Contents
3.3 Defrosting Operation ..............................................................................77
3.4 Pump-down Residual Operation ............................................................78
3.5 Restart Standby......................................................................................79
3.6 Stopping Operation ................................................................................80
3.7 Pressure Equalization prior to Startup....................................................82
4. Protection Control .................................................................................83
4.1 High Pressure Protection Control...........................................................83
4.2 Low Pressure Protection Control............................................................84
4.3 Discharge Pipe Protection Control .........................................................85
4.4 Inverter Protection Control .....................................................................86
4.5 STD Compressor Overload Protection...................................................87
5. Other Control.........................................................................................88
5.1 Outdoor Unit Rotation.............................................................................88
5.2 Emergency Operation ............................................................................89
5.3 Demand Operation .................................................................................91
5.4 Heating operation prohibition .................................................................91
6. Outline of Control (Indoor Unit) .............................................................92
6.1 Drain Pump Control................................................................................92
6.2 Louver Control for Preventing Ceiling Dirt..............................................94
6.3 Thermostat Sensor in Remote Controller...............................................95
6.4 Freeze Prevention ..................................................................................97
Part 5 Test Operation ................................................................. 99
1. Test Operation ....................................................................................100
1.1 Procedure and Outline .........................................................................100
1.2 Operation When Power is Turned On ..................................................103
2. Outdoor Unit PC Board Layout ...........................................................104
3. Field Setting ........................................................................................105
3.1 Field Setting from Remote Controller ...................................................105
3.2 Field Setting from Outdoor Unit............................................................117
Part 6 Troubleshooting .............................................................141
1. Troubleshooting by Remote Controller ...............................................143
1.1 The INSPECTION / TEST Button.........................................................143
1.2 Self-diagnosis by Wired Remote Controller .........................................144
1.3 Self-diagnosis by Wireless Remote Controller .....................................145
1.4 Operation of The Remote Controller’s Inspection /
Test Operation Button ..........................................................................148
1.5 Remote Controller Service Mode .........................................................149
1.6 Remote Controller Self-Diagnosis Function .........................................151
2. Troubleshooting by Indication on the Remote Controller ....................156
2.1 “A0” Indoor Unit: Error of External Protection Device ...........................156
2.2 “A1” Indoor Unit: PC Board Defect.........................................................157
2.3 “A3” Indoor Unit: Malfunction of Drain Level Control System (33H)......158
2.4 “A6” Indoor Unit: Fan Motor (M1F) Lock, Overload...............................160
2.5 “A7” Indoor Unit: Malfunction of Swing Flap Motor (MA) .......................161
2.6 “A9” Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (20E) ........................................................163
2.7 “AF” Indoor Unit: Drain Level above Limit..............................................165
2.8 “AJ” Indoor Unit: Malfunction of Capacity Determination Device ..........166

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