SiUS39-602
Troubleshooting (OP: Unified ON/OFF Controller)
Troubleshooting
211
5.3
Display “Under Centralized Control” Blinks (Repeats
Double Blink)
Remote
Controller
Display
“under centralized control” (Repeats double blink)
Applicable
Models
Unified ON/OFF controller
Method of
Malfunction
Detection
Detect the malfunction according to DIII-NET transmission data.
Malfunction
Decision
Conditions
When no central control addresses are set to indoor units.
When no indoor units are connected within the control range.
Supposed
Causes
Central control address (group No.) is not set for indoor unit.
Improper control range setting switch
Improper wiring of transmission wiring
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(V2844)
Is the control
range setting switch
set correctly?
Is
the transmission
wiring disconnected or
wired incorrectly?
Replace the PC board of the
unified ON/OFF controller.
Fix the wiring correctly.
Set by remote controller the
centralized control address for all
indoor units connected to the
central control line.
YES
YES
Set the control range setting
switch correctly and
simultaneously reset the power
supply for all optional controllers
for centralized control.
NO
NO
NO
YES
Is the central
control address (group No.)
set for the
indoor unit?
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...