Malfunction Of Transmission Between Outdoor Units - Daikin VRV K Manual

SI-95.BOOK Page 106 Friday, March 31, 2000 10:59 AM
Troubleshooting

2.30 Malfunction of Transmission Between Outdoor Units

U U U U 7 7 7 7
Remote Controller
Display
I Improper connection of transmission wiring between outdoor unit and outdoor unit outside control
Supposed Causes
I Improper cool/heat selection
I Improper cool/heat unified address (outdoor unit, external control adaptor for outdoor unit)
I Defect of outdoor unit PC board (A1P)
I Defect of external control adaptor of outdoor unit (option)
Troubleshooting
106
adaptor
YES
C/H SELECT is set to "IND".
NO
NO
Cool / heat selection is unified.
YES
C/H SELECT
YES
is set to "Unfied MAIN."
NO
C/H SELECT YES
is set to " Unfied SUB."
NO
Outdoor unit outside control adaptor
•Is it energized?
•Does the cool/heat unified address match?
Outdoor unit (unified main unit)
•Is it energized?
•Does the cool/heat unified address match?
Is the indoor
NO
/ outdoor unit transmission
Fix the indoor/outdoor unit
wiring normal?
transmission wiring.
YES
Replace the outdoor unit PC
Board (A1P).
Set C/H SELECT to "IND."
The cool / heat unified address for
outdoor units in outdoor - outdoor
unit transmission is duplicated.
Set the address correctly.
Check
NO
and see if the following items Fix the problem.
are normal.
YES
Does
a malfunction occur when NO
Replace the outdoor unit outside
the cool / heat selector is set
control adaptor.
to "IND?"
YES
Replace the outdoor unit PC
board (A1P).
Troubleshooting Inverter K Series
Si-95
(VF056)