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

SI-95.BOOK Page 128 Friday, March 31, 2000 10:59 AM

Troubleshooting (OP: Schedule Timer)

6. Troubleshooting (OP: Schedule Timer)

6.1 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 central remote controller and indoor unit
Supposed Causes
I Disconnection of connector for setting master controller (or individual/combined switching connector)
I Defect of schedule timer PC board
I Defect of indoor unit PC board
Troubleshooting
128
Has
an indoor unit
YES
once connected been remove
or its address
changed?
NO
Is
the power supply
NO
turned on for indoor units
displaying
malfunction?
YES
Is
transmission wiring
YES
disconnected or wired
incorrectly?
NO
Is
transmission with all
NO
indoor units
malfunctioning?
YES
Is
the transmission
YES
wiring with the master
controller disconnected or
wired incorrectly?
NO
Is
the master controller's
YES
connector for setting master
controller
disconnected?
NO
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.
Troubleshooting Inverter K Series
Si-95
(VF075)