Friedrich Kuhl Series 28000 BTU Window Air Conditioner Installation and Operation Manual - Manuel (Page 26)

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Airflow direction adjustment
The airflow path may be adjusted to distribute air independently from the
left or right side of the discharge opening. Each of the banks of louvers can
be directed left, right, up, or down in order to achieve the most optimum
airflow positioning.
To adjust airflow direction, grab the lever in the center of the louver bank
and move it in the direction that you would like the air to be directed. Please
note that it is normal that airflow may be stronger out of one side of the
louvers than the other.
Figure 53
FRR008
Airflow Selection and Adjustment
Fresh air and exhaust control
Your air conditioner has the ability to bring fresh air into the room or exhaust
stale air out of the room. The control slide is found on the upper part of the
unit (see Figure 53).
TO BRING IN FRESH AIR – Move the lever to the Fresh Air position
which allows outside air to enter the room. This is useful in fall and spring
as a means of bringing in fresh outside air when using FAN ONLY. It can
also be used in the summer with the compressor in the Cooling Mode if
you wish.
TO EXHAUST INDOOR AIR – Move the lever to the Exhaust position.
This will allow stale air to be expelled to the outside of the dwelling. This
is especially handy in the spring or fall when indoor air tends to get stale,
or after a social gathering involving smokers, or to remove cooking odors.
BEST PERFORMANCE – Move the lever to the Re-Circulate Position .
This is the most efficient mode for cooling and heating.