Daikin VRV EMERION RXYQ-AATJA, Руководство по обслуживанию, Страница: 359 / 429

SiUS342303E Troubleshooting by Error Code
Part 6 Service Diagnosis 352
Unified Cool/Heat
selection
Cool/Heat
selection for the
external control adaptor
for outdoor unit is set to
“Unified Master”.
Cool/Heat
selection for the
external control adaptor
for outdoor unit is set
to “Unified Sub”.
Is the
normal
operation monitor
LED on the outdoor unit
main PCB
blinking?
Is po w er supplied to
the outdoor unit?
Is the po w er
supply cable of the
external control adaptor for
outdoor unit connected to
the 16 V DC po w er
supply line?
Is the
normal
operation monitor
LED on the external control
adaptor for outdoor
unit blinking?
Does the
error recur w hen
setting Cool/Heat
selection for the external
control adaptor for
outdoor unit to
“I N D”?
N O
N O
N O
N O
N O N O
N O
N O
YES
YES
YES
YES
YES
YES
YES
YES
Replace the outdoor unit
main PCB (A1P).
Replace the external
control adaptor for
outdoor unit main PCB.
Connect the po w er
supply cable of the
external control adaptor
for outdoor unit to the 16
V DC po w er supply line.
Replace the outdoor unit
main PCB (A1P).
Supply po w er to the
outdoor unit.
Replace the outdoor unit
main PCB (A1P).
Unified Cool/Heat
addresses for outdoor
units in the
outdoor-outdoor
transmission are
duplicated. Make
address setting again.
Set Cool/Heat selection
for the external control
adaptor for outdoor unit
to “I
N D.”
Diagnosis Flo w chart-2
(Transmission error w hen the external
control adaptor for outdoor unit is mounted)
Error code Sub code
U7-02