Improper Combination Of Optional Controllers For Centralized Control - Daikin R407C PLUS Service Manual

Troubleshooting (OP: Schedule Timer)
7.4 Improper Combination of Optional Controllers for
Centralized Control
MA
Remote
Controller
Display
!
Supposed
!
Causes
!
Troubleshooting
Caution
adaptor for electrical
Is the schedule
timer connected?
more optional controllers
for centralized control connected
with the connector for
Reset the power supply for all
optional controllers for centralized
control simultaneously.
212

Improper combination of optional controllers for centralized control

More than one master controller is connected.
Defect of PC board of optional controller for centralized control
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is the wiring
YES
appendices
connected?
NO
YES
NO
Are
there two or
YES
setting master
control?
NO
If the malfunction is still not cleared:
Is a data station
connected?
NO
Is a parallel interface
connected?
NO
Is the schedule
timer's individual/combined
connector connected?
NO
Troubleshooting R407C PLUS Series Heat Recovery System
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 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.
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 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.
Si33-105
(VF077)