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SiUS39-602
iv
Table of Contents
2.41
“
PJ
” Outdoor Unit: Faulty Field Setting after Replacing Main
PC Board or Faulty Combination of PC Board..................................... 173
2.42
“
UO
” Outdoor Unit:
Low Pressure Drop due to Refrigerant
Shortage or Electronic Expansion Valve Failure.................................. 174
2.43
“
U1
”
Outdoor Unit: Reverse Phase, Open Phase .................................. 175
2.44
“
U2
”
Outdoor Unit: Power Supply Insufficient or
Instantaneous Failure .......................................................................... 176
2.45
“
U3
” Outdoor Unit:
Check Operation not Executed ............................... 178
2.46
“
U4
”
Malfunction of Transmission between Indoor Units ...................... 179
2.47
“
U5
”
Indoor Unit:
Malfunction of Transmission between
Remote Controller and Indoor Unit ...................................................... 181
2.48
“
U7
” Indoor Unit:
Malfunction of Transmission between
Outdoor Units ....................................................................................... 182
2.49
“
U8
” Indoor Unit:
Malfunction of Transmission between
MAIN and SUB Remote Controllers..................................................... 184
2.50
“
U9
” Indoor Units:
Malfunction of Transmission between
Indoor Units and Outdoor Units in the Same System .......................... 185
2.51
“
UA
”
Improper Combination of Indoor Units and
Outdoor Units/Indoor Units and Remote Controller ............................. 187
2.52
“
UC
”
Address Duplication of Centralized Remote Controller ................. 188
2.53
“
UE
”
Malfunction of Transmission between Centralized Controller
and Indoor Unit .................................................................................... 189
2.54
“
UF
”
System is not Set yet..................................................................... 191
2.55
“
UH
”
Malfunction of System,
Refrigerant System Address Undefined............................................... 192
3. Troubleshooting (OP: Central Remote Controller) ..............................194
3.1
“
M1
”
PC Board Defect ............................................................................ 194
3.2
“
M8
”
Malfunction of Transmission Between Optional
Controllers for Centralized Control....................................................... 195
3.3
“
MA
”
Improper Combination of Optional
Controllers for Centralized Control....................................................... 196
3.4
“
MC
”
Address Duplication, Improper Setting.......................................... 198
4.
Troubleshooting (OP: Schedule Timer) ..............................................199
4.1
“
UE
”
Malfunction of Transmission Between Centralized
Controller and Indoor Unit .................................................................... 199
4.2
“
M1
”
PC Board Defect ............................................................................ 201
4.3
“
M8
”
Malfunction of Transmission Between Optional
Controllers for Centralized Control....................................................... 202
4.4
“
MA
”
Improper Combination of Optional Controllers for
Centralized Control .............................................................................. 203
4.5
“
MC
”
Address Duplication, Improper Setting.......................................... 205
5.
Troubleshooting (OP: Unified ON/OFF Controller) .............................206
5.1
Operation Lamp Blinks......................................................................... 206
5.2
Display “Under Centralized Control” Blinks (Repeats Single Blink) ..... 208
5.3
Display “Under Centralized Control” Blinks (Repeats Double Blink).... 211
Summary of Contents for REYQ72
Page 35: ...Specifications SiUS39 602 24 Specifications...
Page 121: ...Field Setting SiUS39 602 110 Test Operation...
Page 129: ...Troubleshooting by Remote Controller SiUS39 602 118 Troubleshooting...
Page 225: ...Troubleshooting OP Unified ON OFF Controller SiUS39 602 214 Troubleshooting...
Page 232: ...SiUS39 602 Piping Diagrams Appendix 221 1 3 BS Unit BSVQ36MVJU BSVQ60MVJU 4D045338...
Page 235: ...Wiring Diagrams for Reference SiUS39 602 224 Appendix REYQ144 168 192MTJU C 3D050354A...
Page 240: ...SiUS39 602 Wiring Diagrams for Reference Appendix 229 2 4 BS Unit BSVQ36M 60MVJU 3D045069A...
Page 249: ...Example of Connection R 410A Type SiUS39 602 238 Appendix...
Page 255: ...Method of Replacing The Inverter s Power Transistors and Diode Modules SiUS39 602 244 Appendix...
Page 265: ...Precautions for New Refrigerant R 410A SiUS39 602 254 Precautions for New Refrigerant R 410A...
Page 269: ...SiUS39 602 iv Index...