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5.3 Protection for power supply droping
NR-BY552 / NR-BY602
YES
After 1 hour.
NO
YES
YES
7
IC cancels to stop compressor.
Normal operating?
6
After restarting, does “Stop compressor”
occure 10 times within 2 min?
5
IC cancels to stop compressor.
Normal operating?
4
After 10 min., does PCB check power supply
voltage if it is > 180V AC?
3
IC orders to stop compressor for 10 min.
2
Does power supply voltage drop as condition
> 0.1 sec. and < 160V AC?
1
• IC continues to stop compressor until 1 hour.
• IC indicates Self Diagnosing sign.
NO
• IC continues to stop compressor until 1 hour.
• IC indicates Self Diagnosing sign.
NO
• Normal operating.
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