Product Manual ALR2-3 ALR 110F – 150F 35
Case 4, Open Screening Walls
Decorative screening walls are often used to help conceal a unit either on grade or on a rooftop.
These walls should be designed such that the combination of their open area and distance from the
unit do not require performance adjustment. It is assumed that the wall height is equal to or less than
the unit height when mounted on its base support. This is usually satisfactory for concealment.
The distance from the ends of the unit to the end walls should be sufficient for service, opening
control panel doors, and pulling evaporator tubes, as applicable.
If each side wall is different distance from the unit, the distances can be averaged providing either wall
is not more than 8 feet (2.4 meters) from the unit. For example, do not average 4 feet and 20 feet to
equal 12 feet.
Figure 19, Open Screening Walls
Figure 20, Wall Free Area vs. Distance
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