Samsung AM080BXMDGH/EU - Page 127

Test Operation
Samsung Electronics 9-5
2) Outdoor Unit Temperature sensor
■ Inspection item : Outdoor temperature of each Outdoor Unit, Cond_Out, EVI In / Out, Suction, Liquid pipe tempera-
ture 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 follow-
ing order.
Yes
Confirmation and Measures
Yes
Confirmation and Measures
No
Is Temperature
sensor connector properly connect?
Yes
Replace sensor
No
Is Temperature sensor resistance value normal?
Check the breakaway
of sensor or replace PCB
Must wait more than 1 hour
Complete
Is deviations of the each
Outdoor Unit Temperature sensors,
more than 10℃?
Is deviations of the each
Outdoor Unit Temperature sensors, less than 10℃?
Yes
Yes
No
No
Is Temperature sensor properly assembled?
No
[Discharge
Temperature sensor
resistance value]
Temperature(℃)
Resistance(KΩ)
※ Resistance measurement method After
separating the Temperature sensor connector
from the PCB, measure the resistance value
between the two terminals.
70
60
50
40
30
20
10
0
-10
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
[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.