Samsung AVMKH020EA0 Service Manual page 70

4-4-2. Test operation
1. Perform the test operation by pressing the test operation key of outdoor unit PCB when the
pre-check for the test operation is completed.
G Check the compressor noise at the initial operation, and if there is a large noise, stop the test operation.
G If there is a large noise and not high/low pressure change at the compressor, it is possible 3 phase power reverse.
Recheck the input power of the compressor. If there is no abnormal, check the compressor power cable.
(3 PHASES: T1(L1)(R) → (RED), T2(L2)(S) → WHITE, T3(L3)(T) → BLACK, SINGLE PHASE: R → RED,
S → WHITE, C → BLACK)
G Check if the connected indoor unit of all operated.
2. Perform the of S-NET program installed on the computer.
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Installation