Timed Recirculated Air

Timed recirculated air
The timed recirculated air mode sets the inlet air source to recirculated air for 5 ± 1 minutes, after which it automatically reverts to fresh air. Timed recirculated air can be manually selected:
^ In the automatic mode, by pressing the fresh/recirculated air switch for 1.5 seconds or more; the audible warning sounds twice.
^ In the economy or defrost modes, by pressing the fresh/recirculated air switch for less than 1.5 seconds; the audible warning sounds once.