Daikin FXYBP20K7V1, Service Manual

Page: 3 / 193

SiE 00-07
ii Table of Contents
4. Outline of Control (Indoor Unit) .............................................................69
4.1 Drain Pump Control ............................................................................... 69
4.2 Louver Control for Preventing Ceiling Dirt ............................................. 71
4.3 Thermostat Sensor in Remote Controller .............................................. 72
4.4 Freeze Prevention ................................................................................. 74
Part 4 Test Operation R-407C PLUS Series................................75
1. Test Operation ................................................................................................ 76
1.1 Procedure and Outline........................................................................... 76
1.2 Operation When Power is Turned On ................................................... 78
1.3 Outdoor Unit PC Board Ass’y ................................................................ 79
1.4 Setting Modes........................................................................................ 81
1.5 Cool / Heat Mode Selection................................................................... 88
1.6 Low Noise Operation ............................................................................. 93
1.7 Demand Control .................................................................................... 94
1.8 Sequential Start ..................................................................................... 95
1.9 Wiring Check Operation ........................................................................ 96
1.10 Additional Refrigerant Charge Operation .............................................. 97
1.11 Refrigerant Recovery Mode................................................................... 98
1.12 Indoor Field Setting ............................................................................... 99
1.13 Centralized Control Group No. Setting ................................................ 105
1.14 Contents of Control Modes.................................................................. 107
Part 5 Troubleshooting R-407C PLUS Series ...........................109
1. Operation Flowcharts.................................................................................... 111
1.1 Indoor Unit Operation Flowchart.......................................................... 111
2. Troubleshooting by Remote Controller ...............................................116
2.1 The INSPECTION / TEST Button........................................................ 116
2.2 Self-diagnosis by Wired Remote Controller......................................... 117
2.3 Self-diagnosis by Wireless Remote Controller .................................... 118
2.4 Operation of The Remote Controller’s Inspection /
Test Operation Button ......................................................................... 122
2.5 Remote Controller Service Mode ........................................................ 123
2.6 Remote Controller Self-Diagnosis Function ........................................ 125
3. Troubleshooting ..................................................................................128
3.1 Indoor Unit: Error of External Protection Device.................................. 128
3.2 Indoor Unit: PC Board Defect .............................................................. 128
3.3 Indoor Unit: Malfunction of Drain Level Control System (33H)............ 129
3.4 Indoor Unit: Fan Motor (M1F) Lock, Overload..................................... 130
3.5 Indoor Unit: Malfunction of Swing Flap Motor (M1S)........................... 131
3.6 Indoor Unit: Malfunction of Moving Part of Electronic Expansion Valve
(Y1E)132
3.7 Indoor Unit: Drain Level above Limit ................................................... 133
3.8 Indoor Unit: Malfunction of Capacity Determination Device ................ 134
3.9 Indoor Unit: Malfunction of Thermistor (R2T) for Liquid Pipe .............. 134
3.10 Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes ............... 135
3.11 Indoor Unit: Malfunction of Thermistor (R1T) for Air Inlet.................... 135
3.12 Indoor Unit: Malfunction of Thermostat Sensor
in Remote Controller............................................................................ 136
3.13 Outdoor Unit: Actuation of Safety Device ............................................ 136
3.14 Outdoor Unit: PC Board Defect ........................................................... 137