Haier AD25S2PS1FA Installation And Operation Manual page 24

Installation Procedure
Hose
Drain confirmation
Precautions for Electrical wiring
Wiring connection
The specification of power cable is HO5RN-F3G 4.0mm .
The specification of cable between indoor unit to outdoor unit is HO5RN-F4G 2.5mm
WARNING
DANGER OF BODILY INJURY OR DEATH
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Electrical wiring
2