Refrigerant Diagram
79
6.9 Power supply waveforms check procedures
Measure the power supply waveform between No. 1(Live) and No. 2(Neutral) on the terminal board, and
check the waveform disturbance with osciloscope.
•
Check if the power supply waveform is a sine wave (Fig. 1).
•
Check if there is waveform disturbance near the zero cross (sections circled in Fig. 2).
2
.
g
i
F
1
.
g
i
F
)
4
4
4
1
R
(
)
6
2
7
1
R
(
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