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SiUS39-602
Troubleshooting by Indication on the Remote Controller
Troubleshooting
191
2.54
“
UF
”
System is not Set yet
Remote
Controller
Display
UF
Applicable
Models
All indoor units models
REYQ72M, 96M
Method of
Malfunction
Detection
The number of indoor units in terms of data transmission becomes mismatched to that of indoor
units with changes in temperature on operation for checks.
Malfunction
Decision
Conditions
The malfunction is determined as soon as the abnormality aforementioned is detected through
checking the system for any erroneous connection of units on the check operation.
Supposed
Causes
Improper connection of transmission wiring between indoor-outdoor unit and outdoor unit-
external control adaptor for outdoor unit
Failure to execute check operation
Defect of indoor unit PC board
Stop valve is left in closed.
Troubleshooting
Note:
Wiring check operation may not be successful if carried out after the outdoor unit has been off
for more than 12 hours, or if it is not carried out after running all connected indoor units in the
fan mode for at least an hour.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(V2830)
Is
indoor - outdoor
and outdoor - outdoor unit
transmission wiring
normal?
Replace indoor unit PC board.
Wiring check operation may
not have been carried out
successfully.
After fixing incorrect wiring,
push and hold the RESET
button on the master outdoor
unit PC board for 5 seconds.
(Wiring check operation)
YES
NO
YES
NO
NO
YES
Is the
check operation
carried out?
Is indoor
-outdoor and outdoor-
outdoor unit transmission
wiring normal?
Open stop valve.
YES
NO
Are the stop
valves openned?
∗
The unit will not run for up to
12 minutes.
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...