Daikin VRV II RXYQ8MY1K, Service Manual

Page: 242 / 310

Si39-502A Troubleshooting (OP: Unified ON/OFF Controller)
Troubleshooting 231
NO
NO
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
parallel interface and reset the
power supply for all optional
controllers for centralized
control simultaneously.
Disconnect the schedule
timer's individual / combined
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.
Reset the power supply
for all optional controllers
for centralized control
simultaneously.
YES
YES
YES
Is the
wiring adaptor for
electrical appendices
connected?
Is a schedule timer
connected?
Are
there two or
more optional
controllers for centralized
control connected with the
connector for setting
master
controller?
YES
Is a parallel interface
connected?
NO
YES
Is the
schedule timer's
individual/combined
connector
connected?
NO
NO
If the malfunction is still not cleared:
2A
(V2843)