Operating instructions

8 IMM AGSB-60
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.
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 4, Unit Adjacent to Wall
H
D
Figure 5, Adjustment Factors
5 ft.
(1.5m)
6 ft.
(1.8m)
5 ft.
(1.5m)
6 ft.
(1.8m)