Daikin VRV II RXYQ5MATL Service Manual page 260

Si39-504
Troubleshooting
2A
Is the
wiring adaptor for
electrical appendices
connected?
NO
Is a 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:
Troubleshooting (OP: Unified ON/OFF Controller)
YES
YES
Is a parallel interface
connected?
NO
Is the
schedule timer's
individual/combined
connector
connected?
NO
YES
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.
YES
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.
YES
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.
(V2843)
249