SiAF332111E
v Table of Contents
5.68 System Abnormality, Refrigerant System Address Undefined .............326
5.69 Defective PCB ......................................................................................327
5.70 Transmission Error (between Centralized Controllers) ........................328
5.71 Poor Centralized Controller Combination.............................................329
5.72 Address Duplication, Poor Setting........................................................330
5.73 Operation Lamp Blinking......................................................................331
5.74 Central Control Indicator Lamp Blinking (One blink) ............................333
5.75 Central Control Indicator Lamp Blinking (Two blinks) ..........................336
6. Check ..................................................................................................337
6.1 High Pressure Check ...........................................................................337
6.2 Low Pressure Check ............................................................................338
6.3 Superheat Operation Check.................................................................339
6.4 Power Transistor Check .......................................................................340
6.5 Wet Operation Check ...........................................................................344
6.6 Refrigerant Overcharge Check.............................................................345
6.7 Refrigerant Shortage Check.................................................................346
6.8 Vacuuming and Dehydration Procedure ..............................................347
6.9 Inverter-Related Error Codes ...............................................................348
6.10 Concept of Inverter-Related Error Codes.............................................349
6.11 Thermistor Check .................................................................................350
6.12 Pressure Sensor Check .......................................................................353
6.13 Master Unit Centralized Connector Setting Table ................................354
6.14 Master-Slave Unit Setting Table...........................................................355
6.15 Broken Wire Check of the Relay Wires ................................................355
6.16 Fan Motor Connector Check (Power Supply Cable) ............................356
6.17 Fan Motor Connector Check (Signal Cable) ........................................357
6.18 Electronic Expansion Valve Coil Check ...............................................358
Part 7 Appendix .......................................................................... 360
1. Wiring Diagrams..................................................................................361
1.1 Outdoor Unit .........................................................................................361
1.2 VRV Indoor Unit ...................................................................................366
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