12 IOMM ACZ/AGZ-1
Figure 7, Pressure Drop Curve
AGZ 035AM - 040AM
CDE 1204-3
NOMINAL MAXIMUM MINIMUM
Pressure Drop Flow Pressure Drop Flow Pressure Drop Flow
CDE
Unit
Size
AGZ-AM
Unit
Size
(ft) of Water (gpm) (lps) (ft) of Water (gpm) (lps) (ft) of Water (gpm) (lps)
1004-1 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.
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