Troubleshooting by Indication on the Remote Controller
SiUS39-602
182
Troubleshooting
2.48
“
U7
”
Indoor Unit:
Malfunction of Transmission between
Outdoor Units
Remote
Controller
Display
U7
Applicable
Models
All models of indoor units
Method of
Malfunction
Detection
Microcomputer checks if transmission between outdoor units.
Malfunction
Decision
Conditions
When transmission is not carried out normally for a certain amount of time
Supposed
Causes
Improper connection of transmission wiring between outdoor unit and external control
adaptor for outdoor unit
Improper connection of transmission wiring between outdoor units.
Improper cool/heat selection
Improper cool/heat unified address (outdoor unit, external control adaptor for outdoor unit)
Defect of outdoor unit PC board (A1P)
Defect of external control adaptor for outdoor unit
Содержание REYQ72
Страница 35: ...Specifications SiUS39 602 24 Specifications...
Страница 121: ...Field Setting SiUS39 602 110 Test Operation...
Страница 129: ...Troubleshooting by Remote Controller SiUS39 602 118 Troubleshooting...
Страница 225: ...Troubleshooting OP Unified ON OFF Controller SiUS39 602 214 Troubleshooting...
Страница 229: ...Piping Diagrams SiUS39 602 218 Appendix 1 Piping Diagrams 1 1 Outdoor Unit REYQ72M 96MTJU 4D045329A...
Страница 232: ...SiUS39 602 Piping Diagrams Appendix 221 1 3 BS Unit BSVQ36MVJU BSVQ60MVJU 4D045338...
Страница 234: ...SiUS39 602 Wiring Diagrams for Reference Appendix 223 2 2 Field Wiring REYQ72 96MTJU C 3D050361A...
Страница 235: ...Wiring Diagrams for Reference SiUS39 602 224 Appendix REYQ144 168 192MTJU C 3D050354A...
Страница 238: ...SiUS39 602 Wiring Diagrams for Reference Appendix 227 FXAQ07M 09M 12M 18M 24MVJU FXHQ12M 24M 36M 3D046039C 3D048116...
Страница 239: ...Wiring Diagrams for Reference SiUS39 602 228 Appendix FXLQ12M 18M 24MVJU FXNQ12M 18M 24MVJU 3D045644A...
Страница 240: ...SiUS39 602 Wiring Diagrams for Reference Appendix 229 2 4 BS Unit BSVQ36M 60MVJU 3D045069A...
Страница 249: ...Example of Connection R 410A Type SiUS39 602 238 Appendix...
Страница 255: ...Method of Replacing The Inverter s Power Transistors and Diode Modules SiUS39 602 244 Appendix...
Страница 265: ...Precautions for New Refrigerant R 410A SiUS39 602 254 Precautions for New Refrigerant R 410A...
Страница 269: ...SiUS39 602 iv Index...