Daikin ERQ, Руководство по обслуживанию

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Troubleshooting by Indication on the Remote Controller ESIE09-05
176 Troubleshooting
3.10 “
C6
” AHU: Failure of Combination (Between AHU PC
Board and Fan PC Board)
Remote
Controller
Display
C6
Applicable
Models
FXMQ40~125P
Method of
Malfunction
Detection
Conduct open line detection with PC board for fan (A2P) using indoor PC board (A1P).
Malfunction
Decision
Conditions
When the communication data of PC board for fan (A2P) is determined as incorrect.
Supposed
Causes
The possible causes are:
„ Malfunction of PC board for fan (A2P).
„ Connection defect of capacity setting adapter.
„ Setting mistake on site.
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
Replace it with correct PC board
for fan (A2P).
NO
NO
Install correct capacity setting
adaptor.
After establishing transmission for
indoor and outdoor, diagnose the
operation again.
YES
YES
Is the type
of PC board for fan (A2P)
correct?
Was
correct capacity
setting adaptor installed
when replacing
it with supplementary
PC board?
Was indoor
PC board (A1P) replaced
with supplementary
PC board?
YES
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