Daikin ARXF20C5V1B Installer's Reference Manual page 15

(A)RXF20~42C5V1B
R32 split series
4P519439-10J – 2021.06
NOTICE
ONLY applicable if the power supply is three‑phase, and the compressor has an ON/
OFF starting method.
If there exists the possibility of reversed phase after a momentary black out and the
power goes ON and OFF while the product is operating, attach a reversed phase
protection circuit locally. Running the product in reversed phase can break the
compressor and other parts.
2 General safety precautions
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Installer reference guide
15