Daikin VRV - WII, Service Manual

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Troubleshooting (OP: Unified ON/OFF Controller) SiUS30-604
248 Troubleshooting
5.3 Display “Under Host Computer Integrate Control” Blinks
(Repeats Double Blink)
Remote
Controller
Display “under host computer integrated control” (Repeats double blink)
Applicable
Models Unified ON/OFF controller
Method of
Malfunction
Detection Detect the malfunction according to DIII-NET transmission data.
Malfunction
Decision
Conditions When no central control addresses are set to indoor units.
When no indoor units are connected within the control range.
Supposed
Causes
„
Central control address (group No.) is not set for indoor unit.
„
Improper address setting
„
Improper wiring of transmission wiring
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(V2844)
Is the switch
for setting each address
set correctly?
Is
the transmission
wiring disconnected or
wired incorrectly?
Replace the PC board of the
unified ON/OFF controller.
Fix the wiring correctly.
Set by remote controller the
central control address for all
indoor units connected to the
central control line.
YES
YES
Set the switch for setting each
address correctly and
simultaneously reset the power
supply for all optional controllers
NO
NO
NO
YES
Is the central
control address (group No.)
set for the
indoor unit?