Daikin VRV II RXYQ8MY1K Service Manual page 236

Si39-502A
Troubleshooting
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the wiring
adaptor for electrical
appendices
connected?
NO
Is the schedule
timer connected?
NO
Are
there two or
more optional
controllers
for centralized control
connected with the
connector for setting
master
controller?
NO
Reset the power supply
for all optional controllers
for centralized control
simultaneously.
If the malfunction is still not cleared:
YES
YES
Is a parallel interface
connected?
NO
Is the schedule
timer's individual/combined
connector connected?
NO
YES
Troubleshooting (OP: Schedule Timer)
Cannot be used in
combination with a wiring
adaptor for electrical
appendices. Remove the
wiring adaptor for electrical
appendices and reset the
power supply for all optional
controllers for centralized
control simultaneously.
Schedule timer and parallel
interface cannot be used in
combination. Disconnect
either the schedule timer or
YES
parallel interface and reset
the power supply for all
optional controllers for
centralized control
simultaneously.
Disconnect the schedule
timer's individual / combined
YES
connector and reset the
power supply for all optional
controllers for centralized
control simultaneously.
Arrange so that the connector
for setting master controller is
connected to one controller
for centralized control and
reset the power supply for all
optional controllers for
centralized control
simultaneously.
Disconnect the connector for
setting master controller from
the master controller, connect
to another optional controller
for centralized control and
simultaneously reset all
optional controllers for
centralized control again. The
controller connected by the
connector for setting master
controller when the
malfunction is cleared is
defective and must be
replaced.
(V2839)
225