Daikin VRV II RXYQ8MY1K, Service Manual

Page: 3 / 310

Si39-502A
ii Table of Contents
4. Protection Control .................................................................................69
4.1 High Pressure Protection Control...........................................................69
4.2 Low Pressure Protection Control............................................................70
4.3 Discharge Pipe Protection Control .........................................................71
4.4 Inverter Protection Control .....................................................................72
4.5 STD Compressor Overload Protection...................................................73
5. Other Control.........................................................................................74
5.1 Outdoor Unit Rotation.............................................................................74
5.2 Emergency Operation ............................................................................75
5.3 Demand Operation .................................................................................77
5.4 Heating Operation Prohibition ................................................................77
6. Outline of Control (Indoor Unit) .............................................................78
6.1 Drain Pump Control................................................................................78
6.2 Louver Control for Preventing Ceiling Dirt..............................................80
6.3 Thermostat Sensor in Remote Controller...............................................81
6.4 Thermostat Control While in Normal Operation .....................................83
6.5 Thermostat Control in Dry Operation .....................................................83
6.6 Freeze Prevention ..................................................................................84
6.7 Heater Control ........................................................................................85
6.8 List of Swing Flap Operations ................................................................86
Part 5 Test Operation ................................................................. 87
1. Test Operation ......................................................................................88
1.1 Procedure and Outline ...........................................................................88
1.2 Operation When Power is Turned On ....................................................92
2. Outdoor Unit PC Board Layout .............................................................93
3. Field Setting ..........................................................................................94
3.1 Field Setting from Remote Controller .....................................................94
3.2 Field Setting from Outdoor Unit............................................................106
Part 6 Troubleshooting .............................................................133
1. Symptom-based Troubleshooting .......................................................136
2. Troubleshooting by Remote Controller ...............................................139
2.1 The INSPECTION / TEST Button.........................................................139
2.2 Self-diagnosis by Wired Remote Controller .........................................140
2.3 Self-diagnosis by Wireless Remote Controller .....................................141
2.4 Operation of The Remote Controller’s Inspection /
Test Operation Button ..........................................................................143
2.5 Remote Controller Service Mode .........................................................144
2.6 Remote Controller Self-Diagnosis Function .........................................146
3. Troubleshooting by Indication on the Remote Controller ....................151
3.1 “
A0
” Indoor Unit: Error of External Protection Device ...........................151
3.2 “
A1
” Indoor Unit: PC Board Defect.........................................................152
3.3 “
A3
” Indoor Unit: Malfunction of Drain Level Control System (S1L) ......153
3.4 “
A6
” Indoor Unit: Fan Motor (M1F) Lock, Overload...............................155
3.5 “
A7
” Indoor Unit: Malfunction of Swing Flap Motor (MA) .......................156
3.6 “
A9
” Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (20E) ........................................................158
3.7 “
AF
” Indoor Unit: Drain Level above Limit..............................................160
3.8 “
AJ
” Indoor Unit: Malfunction of Capacity Determination Device ..........161