Samsung AM080 XV Series Service Manual page 271

Test Operation
7) Cycle status
Inspection item : Cycle status of Outdoor Unit.
Error code: None (The resulting report "Undetermined")
Determine the Cycle status of the each Outdoor Unit.
If the judgment of Cycle status is "Undetermined" : Checking in accordance with the following order.
Auto Trial Operation results,
is Valve and Pressure sensor normal?
Is Discharge Temperature
sensor of corresponding Outdoor Unit
normal?
When Auto Trial Operation,
does maintain Thermo On status of
Indoor Unit?
Is refrigerant in the system properly?
Complete
9-10
Yes
Yes
Yes
Yes
No
Check the corresponding Valve
/Sensor and Compressor.
Inspection and measures of
No
Discharge Temperature sensor.
(Assembly status, connector,
resistance, etc.)
No
Indoor ventilation
No
Adjusts the refrigerant
(Addition / Emitted)
※ 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(℃)
130 8.9
120 11.2
100 18.5
80 32.0
60 59.0
25 200.0
20 242.0
10 362.0
0 553.0
Samsung Electronics