Air Flow Direction Adjustment; Status Display Of Air Sending Direction; Up And Down Air Flow Direction - Haier (HSU-18RB03/R2) Operation Manual

Hints:
When making coolness, wind orientation should adjust to the horizontal state
in favor of air circulating in the room for cool air will agglomerate upside.
When making heat, wind orientation should adjust to the slanting down state
in favor of air circulating in the room for hot air will agglomerate downside.