Daikin VRV II RXYQ5MY1B Service Manual page 264

SiE39-404
Troubleshooting
2A
Is the
YES
wiring adaptor for
electrical appendices
connected?
NO
YES
Is a schedule timer
connected?
NO
Are
there two or
more optional
controllers for centralized YES
control connected with the
connector for setting
master
control?
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
Is a data station
connected?
NO
YES
Is a parallel interface
connected?
NO
Is the
schedule timer's
YES
individual/combined
connector
connected?
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 data
station cannot be used in
combination. Disconnect
either the schedule timer or
data station 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 control 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 control 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
control when the malfunction
is cleared is defective and
must be replaced.
(V2843)
253