Unit installation

12 IOMM ACZ/AGZ
Figure 7, Pressure Drop Curve
AGZ 030AM - 040AM
CDE 1004-1
AGZ 045AM - 050AM
CDE 1204-3
CDE AGZ-AM NOMINAL MAXIMUM MINIMUM
Unit Unit Pressure Drop Flow Pressure Drop Flow Pressure Drop Flow
Size Size (ft) of Water (gpm) (lps) (ft) of Water (gpm) (lps) (ft) of Water (gpm) (lps)
1004-1 030AM 7.4 73 4.61 18.7 122 7.68 3.2 46 2.88
x 035AM 9.2 82 5.17 23.1 137 8.62 3.9 51 3.23
x 040AM 11.5 93 5.87 28.8 155 9.78 4.9 58 3.67
1204-3 045AM 11.2 106 6.69 28.2 177 11.15 4.8 66 4.18
x 050AM 13.4 117 7.38 33.6 195 12.30 5.7 73 4.61
Minimum and maximum flows are established to ensure the Delta-T for each unit size falls within the 6 - 16°F range for proper unit control.
Evaporator Flow and Pressure Drop
Evaporator flow rate must fall between the minimum and maximum values shown in the evaporator
pressure drop table on Figure 7.
Measure the chilled water pressure drop through the evaporator at factory installed pressure taps. It
is important not to include the effect of valves or strainers in these readings.
Varying chilled water flow through the evaporator while the compressor(s) are operating is not
recommended.