Left-and-right air swing
The upright blades behind the flap move from side to side on their own, spreading the air across the room.
What pressing it does
Press the left-right swing button (Samsung, Airwell, Daikin) or cycle WIDE VANE to SWING (Mitsubishi Electric). Daikin sets the louvres in 7 steps; with both swings on, its flaps and louvres move alternately (“3-D airflow”).
What it does not do
It does not move the up-and-down flap, and it does nothing on units that only have manual side blades: Airwell’s button changes a manual position instead when there is no left-right swing motor.
Makes differ, check your unit’s manual: the same drawing can mean different things on different brands, and only your model’s manual says exactly what a button does and which modes it works in.
- What it looks like
- The outlet seen from above or the front, with upright blades and a curved double-headed arrow pointing left and right.
- Names makers use
- Horizontal air swing (Samsung); WIDE VANE (Mitsubishi Electric); Louvres (Daikin); Horizontal auto swing (Airwell)
Where makers differ
Midea calls these the “vertical louver” and only swings them on some models (hold SWING for 2 seconds); Samsung calls it “Horizontal air swing”. As with the up-down swing, the arrow is the reliable clue.
Often confused with
The long flap across the outlet moves up and down on its own, spreading the air from ceiling to floor; press again to stop it where it is.
Other symbols with the same shapes
Sources
No single published standard defines air-conditioner remote icons, so this meaning is taken from 5 makers’ own manuals, each fetched and read on the date shown:
- Daikin: Daikin web operation manual — Adjusting the airflow direction — “To adjust the louvres (vertical blades) … The louvres (vertical blades) will begin to move horizontally. The airflow direction: 7 steps.” 3-D airflow: flaps and louvres move alternately. Checked 2026-09-26.
- Mitsubishi Electric: Mitsubishi Electric — MSZ-LN indoor unit service manual OBH766 revised edition B (PDF, UK library) — “By selecting SWING mode with WIDE VANE CONTROL button, the vertical vane swings horizontally.” Checked 2026-09-26.
- Samsung: Samsung — Wind-Free 2.0 air conditioner user manual, AR**TSFA*** (PDF on Samsung HVAC’s document store) — Remote overview: “10 Horizontal air swing indicator … 19 Horizontal air swing button”; indoor unit part “05 Airflow blade (left and right)”. Checked 2026-09-26.
- Airwell: Airwell — RC08W remote control manual (PDF) — Horizontal swing button: “If the air-condition has horizontal swing motor, push the button will activate the horizontal air flow to auto swing”; otherwise it changes the flap position manually. Checked 2026-09-26.
- Midea: Midea — Remote controller owner’s manual, RG51A(2)/E and RG51B(2)/E (PDF) — “Keep pressing this button more than 2 seconds, the vertical louver swing function is activated. (Model dependent)” Checked 2026-09-26.
Written in our own words; quotations are the makers’ wording.