Malfunction Of Transmission Between Outdoor Units - Daikin VRV Inverter K Series Manual

SI-05C.BOOK Page 153 Monday, November 6, 2000 4:13 PM
SiE-05C

3.30 Malfunction of Transmission Between Outdoor Units

U U U U 7 7 7 7
Remote Controller
Display
Supposed Causes
Troubleshooting
Troubleshooting Inverter K Series
Improper connection of transmission wiring between outdoor unit and outdoor unit outside control
adaptor
Improper cool/heat selection
Improper cool/heat unified address (outdoor unit, external control adaptor for outdoor unit)
Defect of outdoor unit PC board (A1P)
Defect of outdoor unit outside control adaptor
YES
C/H SELECT is set to "IND".
NO
NO
Cool / heat selection is unified.
YES
C/H SELECT
YES
is set to "MASTER."
NO
C/H SELECT YES
is set to "SLAVE."
NO
Outdoor unit outside control adaptor
•Is there continuity?
•Does the cool/heat unified address match?
Outdoor unit (unified master unit)
•Is there continuity?
•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. replacement
to "IND?"
YES
Replace the outdoor unit PC
board (A1P).
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Troubleshooting
(VF056)
153