Sanyo 48 series, Технические данные и руководство по обслуживанию

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5-8
5
5-4. Details of Alarm Messages
No
No
Yes
Yes
Yes
Yes
Alarm Details
(1) [Alarm “P29”]
Is the power
voltage correct?
Are the wiring connector
connections OK?
Start of defect diagnosis
Improve the power voltage line.
Repair the wiring connectors.
No
No
Repair the wiring connectors.
Replace the HIC PCB.
HIC PCB side
U (CN202) pink
V (CN203) white
W (CN204) blue
Correct the capacity setting for the outdoor unit.
No (Abnormal resistance value)
Replace the compressor.
No (Defective insulation)
Replace the HIC PCB.
No
Replace the outdoor
unit control PCB.
No
No
Related parts
Start-up failure of the compressor (will not start up)
HIC PCB (Model: [706-type, 906-type] HIC-C1155GDXH8)
Outdoor unit control PCB (Model: [706-type, 906-type] CR-C906VH8)
Filter PCB (Model: [706-type, 906-type] FIL-C906VH8)
Replace the compressor
Are the U/V/W
connections on the HIC
PCB and compressor
terminal OK?
Are the capacity
settings for the outdoor unit
of the outdoor unit control
PCB EEPROM OK?
Are the resistance
values permissible at all
areas in HIC PCB?
Yes
(No problem with the resistance value)
Is the insulation on the
compression OK?
Yes
Yes
Yes
Yes
(No problem with the insulation)
Has the HIC PCB been
replaced?
Has the outdoor unit
control PCB been
replaced?
Replace the filter PCB.
Has the filter PCB
been replaced?
Check the following wiring:
HIC+
HIC-
VDCIN+
VDCIN-
HIC1 (10P white)
HIC2 (yellow)
HIC3 (8P white)
VDC2 (2P)
CN200 red
HIC PCB
CN201 white
CN220 red
CN221 red
CN100 white
CN101 yellow 4P
CN102 white
CN240 yellow
CN317 red
Filter PCB
CN318 white
CN321 red
CN322 white
Outdoor unit
control PCB
706 type
CN080 white
CN81 yellow 4P
CN103 white
CN102 white
CN200 red
HIC PCB
CN201 white
CN100 white
CN101 yellow 3P
CN102 white
CN240 yellow
+
Filter PCB
-
Outdoor unit
control PCB
CN080 white
CN81 yellow 4P
CN103 white
CN102 white
906 type
Check the following:
Check to ascertain that the power voltage is within the permissible range of 198 to 264V for indoor
unit or 342 to 456V for outdoor unit regardless of whether the compressor is operating or not.
As the compressors used with the 706-type and 906-type models are different, there is a
possibility that a P29 error will be triggered if the unit's capacity settings are incorrect.
Inspection Method: Remove the HIC PCB and measure the resistance at all areas.
* Pay special attention to whether the voltage drops after compressor operations
while measuring.
See attached documentation.
Replace the HIC PCB if the readings are below permissible values.
Potential cause: PCB Insulation failure caused by the
compressor lock.
Remove the wires from the connectors on the top of the
compressor. Measure the insulation resistance of the U, V
and W phases and confirm that they are 1M or more.
Potential problems are most likely in accordance with the
following sequence when it is determined that the PCB is
trouble with an alarm P29.
1. HIC PCB
2. Outdoor unit control PCB
3. Filter PCB
Replace the relevant PCB in accordance with the diagnosis
flow.
Verification Method
SM830161̲Book.indb 8 SM830161̲Book.indb 8 2008/06/03 9:10:27 2008/06/03 9:10:27