Daikin VRVIII-S, Service Manual

Page: 263 / 266

SiENBE34-703
ii Index
Malfunction of Low Pressure Sensor ...................156
Malfunction of Moving Part of Electronic
Expansion Valve (Y1E) .................................129
Malfunction of Moving Part of Electronic
Expansion Valve (Y1E, Y3E) ........................145
Malfunction of Outdoor Unit Fan Motor ................144
Malfunction of PC Board ......................................157
Malfunction of Subcooling Heat Exchanger
Gas Pipe Thermistor (R4T) ...........................154
Malfunction of Swing Flap Motor (M1S) ...............127
Malfunction of System, Refrigerant System
Address Undefined .......................................180
Malfunction of Thermistor (R1T) for Suction Air ...135
Malfunction of Thermistor (R2T) for Heat Exchanger ...133
Malfunction of Thermistor (R3T) for Gas Pipes ....134
Malfunction of Thermistor (R3T, R5T) for
Suction Pipe 1, 2 ...........................................151
Malfunction of Thermistor (R6T) for Outdoor
Unit Heat Exchanger .....................................152
Malfunction of Thermistor (R7T) for Outdoor
Unit Liquid Pipe .............................................153
Malfunction of Thermistor for Discharge Air .........136
Malfunction of Thermostat Sensor in Remote Control ..137
Malfunction of Transmission between Central
Remote Control and Indoor Unit ..................177
Malfunction of Transmission between Centralized
Remote Control and Indoor Unit ...................181
Malfunction of Transmission between Indoor
and Outdoor Units in the Same System ........173
Malfunction of Transmission between Indoor Units
and Outdoor Units .........................................169
Malfunction of Transmission between Inverter and
Control PC Board ..........................................162
Malfunction of Transmission between Main and
Sub Remote Controls ....................................172
Malfunction of Transmission between Optional
Controllers for Centralized Control ................183
Malfunction of Transmission between
Remote Control and Indoor Unit ...................171
MC ........................................................................186
Method of Replacing The Inverter’s Power
Transistors and Diode Modules ....................228
N
Normal Operation ...................................................41
O
Oil Return Operation ..............................................46
Operation Lamp Blinks .........................................187
Operation Mode .....................................................40
Operation when Power is Turned On .....................69
Option List ............................................................218
Outdoor Unit PC Board Layout ..............................70
Outdoor Unit Thermistors for Discharge Pipe ......226
P
P1 .........................................................................163
PC Board Defect ..................................123, 138, 182
Power Supply Insufficient or Instantaneous Failure .166
Precautions for New Refrigerant (R-410A) ..........232
Pressure Sensor ..................................................227
Protection Control ................................................. 52
Pump-down Residual Operation ........................... 49
R
Refrigerant Circuit ................................................. 36
Refrigerant Cylinders .......................................... 234
Refrigerant Overcharged ..................................... 148
Restart Standby .................................................... 50
S
Service Tools ...................................................... 235
Setting by Dip Switches ........................................ 84
Setting by pushbutton switches ............................. 86
Setting Contents and Code No. ............................ 74
Setting of Low Noise Operation and Demand
Operation ....................................................... 95
Setting of Refrigerant Additional Charging Operation ... 99
Special Control ...................................................... 45
Specifications .......................................................... 6
Startup Control ...................................................... 45
Stopping Operation ............................................... 51
Swing Flaps ........................................................... 63
Symptom-based Troubleshooting ............... 105, 242
System is not Set yet .......................................... 179
T
Test Operation
Procedure and Outline .................................... 66
Thermistor Resistance / Temperature Characteristics 225
Thermostat Sensor in Remote Control .................. 60
U
U0 ........................................................................ 164
U2 ........................................................................ 166
U3 ........................................................................ 168
U4 ........................................................................ 169
U5 ........................................................................ 171
U8 ........................................................................ 172
U9 ........................................................................ 173
UA ....................................................................... 175
UC ....................................................................... 176
UE ............................................................... 177, 181
UF ....................................................................... 179
UH ....................................................................... 180