Unit installation

10 ACZ / AGZ-BM IOMM ACZ/AGZ-3
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. If the wall height is greater than
the unit height, see Case 5, Pit Installation.
The distance from the ends of the unit to the end walls must be sufficient for service, opening control panel
doors, and pulling evaporator tubes, as applicable.
If each side wall is a different distance from the unit, the distances can be averaged, providing either wall is
not less than 8 feet (2.4 meters) from the unit. For example, do not average 4 feet and 20 feet to equal 12
feet.
Figure 11, Open Screening Walls
Figure 12, Wall Free Area vs. Distance
6
(1.8)
5
(2.0)
4
(1.2)
3
(0.9)
4
(1.2)
3.5
(1.0)
3.0
(0.9)
2.5
(0.7)
01020304050
A
GZ 075-130
A
CZ 090-155
AGZ 026-070
ACZ 030-080