Daikin VRV II REYQ10MY1B, Service Manual

Page: 3 / 309

Si39-306
ii Table of Contents
3. Special Control......................................................................................69
3.1 Startup Control .......................................................................................69
3.2 Oil Return Operation ..............................................................................71
3.3 Defrosting Operation ..............................................................................73
3.4 Pressure Equalizing Control...................................................................74
3.5 Pump-down Residual Operation ............................................................75
3.6 Restart Standby......................................................................................76
3.7 Stopping Operation ................................................................................77
3.8 Pressure Equalization Prior to Startup ...................................................79
4. Protection Control .................................................................................80
4.1 High Pressure Protection Control...........................................................80
4.2 Low Pressure Protection Control............................................................81
4.3 Discharge Pipe Protection Control .........................................................82
4.4 Inverter Protection Control .....................................................................83
4.5 STD Compressor Overload Protection...................................................84
5. Other Control.........................................................................................85
5.1 Outdoor Unit Rotation.............................................................................85
5.2 Emergency Operation ............................................................................86
5.3 Demand Operation .................................................................................88
5.4 Heating Operation Prohibition ................................................................88
6. Outline of Control (Indoor Unit) .............................................................89
6.1 Drain Pump Control................................................................................89
6.2 Louver Control for Preventing Ceiling Dirt..............................................91
6.3 Thermostat Sensor in Remote Controller...............................................92
6.4 Freeze Prevention ..................................................................................94
Part 5 Test Operation ................................................................. 95
1. Test Operation ......................................................................................96
1.1 Procedure and Outline ...........................................................................96
1.2 Operation When Power is Turned On ....................................................99
2. Outdoor Unit PC Board Layout ...........................................................100
3. Field Setting ........................................................................................101
3.1 Field Setting from Remote Controller ...................................................101
3.2 Field Setting from Outdoor Unit............................................................113
Part 6 Troubleshooting .............................................................133
1. Troubleshooting by Remote Controller ...............................................135
1.1 The INSPECTION / TEST Button.........................................................135
1.2 Self-diagnosis by Wired Remote Controller .........................................136
1.3 Self-diagnosis by Wireless Remote Controller .....................................137
1.4 Operation of the Remote Controller’s Inspection /
Test Operation Button ..........................................................................140
1.5 Remote Controller Service Mode .........................................................141
1.6 Remote Controller Self-Diagnosis Function .........................................143
2. Troubleshooting by Indication on the Remote Controller ....................148
2.1 “
A0
” Indoor Unit: Error of External Protection Device ...........................148
2.2 “
A1
” Indoor Unit: PC Board Defect.........................................................149
2.3 “
A3
” Indoor Unit: Malfunction of Drain Level Control System (S1L) ......150
2.4 “
A6
” Indoor Unit: Fan Motor (M1F) Lock, Overload...............................152
2.5 “
A7
” Indoor Unit: Malfunction of Swing Flap Motor (MA) .......................153