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9. POTENTIAL OF IMPROPER DATA DISPLAY
On a graph display or history display, abnormal value (compressor revolution suddenly
vanishes and recovers in a few seconds etc.) can be displayed rarely. this can be
caused by noise on the communication line etc. this does not cause abnormal opera-
tion to the air conditioner.
this can be reduced by shortening communication line or separating communication
line from power line, but difficult to eliminate.
En-22
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