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Heating Capacity Corrections
Ent Air DB °F
Heating Corrections
Htg Cap
Power
Heat of Ext
45
1.062
0.739
1.158
50
1.050
0.790
1.130
55
1.037
0.842
1.096
60
1.025
0.893
1.064
65
1.012
0.945
1.030
68
1.005
0.976
1.012
70
1.000
1.000
1.000
75
0.987
1.048
0.970
80
0.975
1.099
0.930
11/10/09
Air Flow Corrections (Dual Capacity Part Load)
Airflow
Cooling
Heating
cfm Per Ton
of Clg
% of Nominal
Total Cap
Sens Cap
Power
Heat of Rej
Htg Cap
Power
Heat of Ext
240
60
0.922
0.778
0.956
0.924
0.943
1.239
0.879
275
69
0.944
0.830
0.962
0.944
0.958
1.161
0.914
300
75
0.957
0.866
0.968
0.958
0.968
1.115
0.937
325
81
0.970
0.900
0.974
0.970
0.977
1.075
0.956
350
88
0.982
0.933
0.981
0.980
0.985
1.042
0.972
375
94
0.991
0.968
0.991
0.991
0.993
1.018
0.988
400
100
1.000
1.000
1.000
1.000
1.000
1.000
1.000
425
106
1.007
1.033
1.011
1.008
1.007
0.990
1.010
450
113
1.013
1.065
1.023
1.015
1.012
0.987
1.018
475
119
1.017
1.099
1.037
1.022
1.018
0.984
1.025
500
125
1.020
1.132
1.052
1.027
1.022
0.982
1.031
520
130
1.022
1.159
1.064
1.030
1.025
0.979
1.034
5/30/06
Air Flow Corrections (Dual Capacity Full Load and Single Speed)
Airflow
Cooling
Heating
cfm Per Ton
of Clg
% of Nominal
Total Cap
Sens Cap
Power
Heat of Rej
Htg Cap
Power
Heat of Ext
240
60
0.922
0.786
0.910
0.920
0.943
1.150
0.893
275
69
0.944
0.827
0.924
0.940
0.958
1.105
0.922
300
75
0.959
0.860
0.937
0.955
0.968
1.078
0.942
325
81
0.971
0.894
0.950
0.967
0.977
1.053
0.959
350
88
0.982
0.929
0.964
0.978
0.985
1.031
0.973
375
94
0.992
0.965
0.982
0.990
0.993
1.014
0.988
400
100
1.000
1.000
1.000
1.000
1.000
1.000
1.000
425
106
1.007
1.034
1.020
1.010
1.007
0.990
1.011
450
113
1.012
1.065
1.042
1.018
1.013
0.983
1.020
475
119
1.017
1.093
1.066
1.026
1.018
0.980
1.028
500
125
1.019
1.117
1.092
1.033
1.023
0.978
1.034
520
130
1.020
1.132
1.113
1.038
1.026
0.975
1.038
5/30/06
Cooling Capacity Corrections
Entering
Air WB °F
Total
Clg Cap
Sensible Cooling Capacity Multipliers - Entering DB °F
Power
Input
Heat of
Rejection
60
65
70
75
80
80.6
85
90
95
100
55
0.898
0.723
0.866
1.048
1.185
*
*
*
*
*
*
0.985
0.913
60
0.912
0.632
0.880
1.078
1.244
1.260
*
*
*
*
0.994
0.927
63
0.945
0.768
0.960
1.150
1.175
*
*
*
*
0.996
0.954
65
0.976
0.694
0.881
1.079
1.085
1.270
*
*
*
0.997
0.972
66.2
0.983
0.655
0.842
1.040
1.060
1.232
*
*
*
0.999
0.986
67
1.000
0.616
0.806
1.000
1.023
1.193
1.330
1.480
*
1.000
1.000
70
1.053
0.693
0.879
0.900
1.075
1.205
1.404
*
1.003
1.044
75
1.168
0.687
0.715
0.875
1.040
1.261
1.476
1.007
1.141
NOTE:
* Sensible capacity equals total capacity at conditions shown.
3/28/12
Correction Factor Tables
SD2500AG 05/21
20
Page _____ of _____
Aston Series
1 - 6 Tons 60Hz
