Samsung AM080 XV Series Service Manual page 266

2) Outdoor Unit Temperature sensor
Inspection item : Outdoor temperature of each Outdoor Unit, Cond_Out, EVI In / Out, Suction, Liquid pipe temperature sensor
Error code: None (The resulting report "Undetermined")
Determine the status of the Temperature sensor of the each Outdoor Unit installed before the compressor start.
If the judgment of Outdoor Unit Temperature sensor is "Undetermined" : Checking in accordance with the following order.
Must wait more than 1 hour
Is deviations of the each
Outdoor Unit Temperature sensors,
more than 10℃?
Is Temperature sensor properly assembled?
sensor connector properly connect?
Is Temperature sensor resistance value normal?
Check the breakaway
of sensor or replace PCB
Is deviations of the each
No
Outdoor Unit Temperature sensors, less than 10℃?
[Caution]
- If the Outdoor Unit with a history of operation (Auto Trial Operation inclusion) : Must be carried out Auto Trial Operation after
1 hour from final operation stopped.
Samsung Electronics
Yes
Yes
Is Temperature
Yes
Yes
Yes
Complete
No
No
Confirmation and Measures
No
Confirmation and Measures
No
Replace sensor
Test Operation
※ Resistance measurement method After
separating the Temperature sensor connector
from the PCB, measure the resistance value
between the two terminals.
[Discharge
Temperature sensor
Resistance(KΩ)
resistance value]
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
9-5