Antifreeze Correction; Waterflow Correction - Daikin WRA Installation And Maintenance Data

Antifreeze Correction

Antifreeze
Type Percent
Water
Ethylene Glycol
Propylene Glycol
Methanol
Ethanol
= Operation in the shaded areas should be avoided as antifreeze solutions greater than 35% will result in extreme
perrformance reductions.

Waterflow Correction

GPM/Ton
Load
Source
IM 1072-1
Heating Capacity
Load
90°F EWT
0 1.000
10 0.991
20 0.979
30 0.965
40 0.955
50 0.943
10 0.981
20 0.969
30 0.950
40 0.937
50 0.922
10 0.986
20 0.970
30 0.951
40 0.936
50 0.920
10 0.991
20 0.972
30 0.947
40 0.930
50 0.911
Flow
Tons
1.2 0.982
1.8 0.990
2.4 1.000
1.5 0.973
2.3 0.987
3.0 1.000
Water to Water Source Heat Pumps
Source Load
30°F EWT 45°F EWT
1.000 1.000
0.973 0.975
0.943 0.946
0.917 0.920
0.890 0.895
0.865 0.870
0.958 0.959
0.913 0.919
0.854 0.866
0.813 0.829
0.770 0.789
0.957 0.961
0.924 0.928
0.895 0.897
0.863 0.865
0.833 0.835
0.927 0.941
0.887 0.901
0.856 0.866
0.815 0.826
0.779 0.791
Heating
kW
1.040
1.022
1.000
1.042
1.021
1.000
Engineering Data
Cooling Capacity
Source
90°F EWT
1.000
0.991
0.979
0.965
0.955
0.943
0.981
0.969
0.950
0.937
0.922
0.986
0.970
0.951
0.936
0.920
0.991
0.972
0.947
0.930
0.911
Cooling
Tons
0.970 1.044
0.983 1.024
1.000 1.000
0.984 1.038
0.993 1.019
1.000 1.000
Pessure Drop
30°F EWT
1.000
1.075
1.163
1.225
1.324
1.419
1.130
1.270
1.433
1.614
1.816
1.127
1.197
1.235
1.323
1.399
1.242
1.343
1.383
1.523
1.639
kW
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