Test Operation
Samsung Electronics 309
2) Outdoor unit's thermistors
W
Suction, and liquid line)
Error code: None ("NG" is only indicated in the result report)
the compressors are started.
Per
■ Precautions
- Start inspection after the outdoor unit's thermistors become stable (generally, leave idle for at least one hour).
If you start inspection immediately after operation, the temperature is not stable and this can degrade the inspection accuracy.
Wait until the thermistors on the outdoor
units become stable.
Is the deviation
greater than 10℃ ?
Resistance Disconnect the thermistor
connectors from the PBA and then measure
connectors.
Take corrective measures.
Take corrective measures.
Replace the thermistors.
Are the thermistor
connectors properly connected
to the PBA?
Are the thermistors
attached to the correct
positions?
Are the resistance
values* for the thermistors
normal?
Replace the Hub PBA.
Perform Auto Trial Operation again.
Temperature (℃ )
70 2.2
60 3.0
50 4.2
40 5.8
30 8.3
20 12.1
10 18.0
0 27.3
-10 43.0
Yes
Yes
Yes
Yes
No
No
No
No
9-1 Auto Trial Operation (cont.)
9-1-3 How to resolve NG items (cont.)
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