Troubleshooting (Op: Central Remote Controller); Malfunction Of Transmission Between Central Remote Controller And Indoor Unit - Daikin VRV K Manual

SI-95.BOOK Page 123 Friday, March 31, 2000 10:59 AM
Si-95

5. Troubleshooting (OP: Central Remote Controller)

5.1 Malfunction of Transmission between Central Remote Controller and Indoor
Unit
U U U U E E E E
Remote Controller
Display
I Malfunction of transmission between optional controllers for centralized control and indoor unit
Supposed Causes
I Connector for setting master controller is disconnected.
I Failure of PC board for central remote controller
I Defect of indoor unit PC board
Troubleshooting
Troubleshooting Inverter K Series
Has
an indoor unit once
YES
connected been remove
or its address
changed?
NO
Is
the power supply
NO
turned on for indoor units
displaying
malfunction?
YES
Is
transmission wiring
NO
disconnected or
wired incorrectly?
YES
Is
transmission with
NO
all indoor units
malfunctioning?
YES
Is
the transmission
wiring with the master
NO
controller disconnected
or wired
incorrectly?
YES
Is
the master controller's
NO
connector for setting master
controller
disconnected?
YES

Troubleshooting (OP: Central Remote Controller)

Reset power supply
simultaneously for all optional
controllers for centralized control.
Turn indoor unit's power supply.
Fix the wiring correctly.
Is the group
NO
No. of malfunctioning indoor
Set the group No. correctly.
units set?
YES
Replace indoor unit PC board.
Fix the wiring correctly.
Connect the connector correctly.
Replace the central PC board.
(VF071)
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