IOMM AGZ-5
AGZ 026B through 130B
7
Case 1, Building or Wall on One Side of One Unit
The existence of a screening wall or the wall of a building in close proximity to an air-cooled
chiller is common in both rooftop and ground level applications. Hot air recirculation on the
coils adjoining the wall will increase compressor discharge pressure, decreasing capacity and
increasing power consumption. Only the compressor(s) connected to these coils will be
affected. Circuits opposite the wall are unaffected.
When close to a wall, it is desirable to place chillers on the north or east side of them. It is
also desirable to have prevailing winds blowing parallel to the unit’s long axis. The worst
case is to have wind blowing hot discharge air into the wall.
Figure 5, Unit Adjacent to Wall
H
D
Figure 6, Adjustment Factors
3.0
2.0
1.0
.5
0
AGZ
075-130
6 ft.
(1.8m)
8 ft.
(2.4m)
4.0
3.0
2.0
0
4.5 ft.
(1.4m)
6 ft.
(1.8m)
8 ft.
(2.4m)
4.5 ft.
(1.4m)
AGZ
026-070
4 ft.
(1.2m)
6 ft.
(1.8m)
3.5 ft.
(1.0m)
AGZ
075-130
AGZ
026-070
4 ft.
(1.2m)
6 ft.
(1.8m)
3.5 ft.
(1.0m)
Summary of Contents for AGZ026BS
Page 103: ...IOMM AGZ 5 AGZ 026B through 130B 103...
Page 104: ...104 AGZ 026B through 130B IOMM AGZ 5...
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