SiUS39-602
Troubleshooting (OP: Central Remote Controller)
Troubleshooting
195
3.2
“
M8
”
Malfunction of Transmission Between Optional
Controllers for Centralized Control
Remote
Controller
Display
M8
Applicable
Models
Central remote controller
Method of
Malfunction
Detection
Detect the malfunction according to DIII-NET transmission data. (The system will be
automatically reset.)
Malfunction
Decision
Conditions
When no master controller is present at the time of the startup of slave controller.
When optional controllers for the centralized control which was connected once, shows no
response.
Supposed
Causes
Malfunction of transmission between optional controllers for centralized control
Defect of PC board of optional controllers for centralized control
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(V2833)
Is
transmission wiring
disconnected or wired
incorrectly?
The PC board of one of the
optional controllers for centralized
control is defective. Try turning
on/off using each optional
controllers for centralized control,
and replace the one that is unable
to control the indoor unit.
NO
NO
Fix the wiring correctly.
YES
YES
Has a once
connected optional
controller for centralized
control been disconnected
or its address
changed?
Turn on power supply for all
optional controllers for centralized
control.
Reset power supply
simultaneously for all optional
controllers for centralized control.
YES
NO
Is
the power supply
turned on for all optional
controllers for
centralized
control?
Set reset switch to "normal".
YES
NO
Is
the reset switch
of all optional controllers
for centralized control set
to ''normal''?
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...