Daikin VRV - WII Service Manual page 259

Troubleshooting (OP: Unified ON/OFF Controller)
Troubleshooting
246
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Has a once
connected optional
YES
controller for centralized
control been disconnected
or its address
changed?
NO
Is the
power supply
NO
turned on for all
optional controllers for
centralized
control?
YES
Is the
reset switch
of all optional controllers NO
for centralized
control set to
"normal"?
YES
Is
transmission wiring
YES
disconnected or wired
incorrectly?
NO
Is
a central remote
YES
controller or schedule timer
connected?
NO
Are
two or more unified
YES
ON / OFF controllers
connected?
NO
2A
Is the
central remote
YES
controller or schedule
timer displaying a
malfunction?
NO
Is the setting
of the unified
NO
ON / OFF controller's
switch for setting
each address
duplicated?
YES
SiUS30-604
Reset power supply
simultaneously for all optional
controllers for centralized
control.
Turn on power supply for
all optional controllers for
centralized control.
Set reset switch to
"normal".
Fix the wiring correctly.
Refer to failure diagnosis for
central remote controller or
schedule timer.
Correct the setting of the
unified ON / OFF controller's
switch for setting each
address and reset the power
supply of the unified ON /
OFF controller.
(V2842)
Troubleshooting