Haier AC142ACBEA Service Manual page 27

AIR FLOW DIRECTION ADJUSTMENT PROCEDURE-Cassette type
Up/down direction can be adjusted by using the SWING button on the remote
controller.
Each time pressing this button, the mode changes in the following sequence.
Change to the AIRFLOW mode.
Louver moves in upward and
downward directions continuously.
Avoid direct air flow to the body for many hours.
Avoid downward blowing operation of cooling mode for many hours.
Do not touch the swing louver during swing operation.
Adjusting up/down air flow direction
SWING
SWING
CAUTION
No indication
(louver stopped)
LOUVER STOPPED
When the LOUVER button is
pushed during SWING mode,
it stops swinging at the just
angle.