Daikin VRV III RXYQ5-54PY1, Service Manual

Page: 313 / 398

Troubleshooting (OP: Central Remote Controller) Si34-601A
302 Troubleshooting
4.4
“
MC
”
Address Duplication, Improper Setting
Remote
Controller
Display
MC
Applicable
Models Central remote controller Intelligent Touch Controller
Schedule timer
Method of
Malfunction
Detection Detect the malfunction according to DIII-NET transmission data.
Malfunction
Decision
Conditions
„
Two or more units of central remote controllers and Intelligent Touch Controllers are
connected, and all of them are set to master unit central setting or slave unit central setting.
„
Two units of schedule timers are connected.
Supposed
Causes
„
Address duplication of centralized controller
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
Correct the setting of the
combination of master and
slave units, and then reset
the power supplies of every
central equipment.
Reset the power supplies of
every central equipment.
Replace the central
equipment.
Central equipment: Normal
It is supposed that the
malfunction results from
external factors (e.g. noises)
from other equipment.
NO
YES
YES
NO
Did the
malfunction
occur while in the first test
run using the intelligent
Touch controller?
Is the
Master/Slave setting of the
central equipment
correct?
Was the
central equipment connected
once, and then disconnected,
or was additional central
equipment
installed?
Is the "MC"
displayed again?
With "MC"
displayed
Without "MC"
displayed
Is the
Master/Slave setting of the
central equipment
correct?
YES YES
If the intelligent Touch
controller is used, correct the
setting of the combination of
master and slave units again
while in DIII-NET test run
mode, referring to the
Master/Slave setting table.
(Refer page 303.)
NO
Turn ON the power supply of
the central equipment with
"MC" displayed once again.
Reset the power supplies of
every central equipment.
Be sure to
refer to the
Master/
Slave
setting
table.
(Refer
page 303.)