York YK145.00-EG4 - Manual (Page 19)

Johnson Controls 19
Water Source Heat Pumps Technical Guide: YK145.00-EG4 (309)
CORRECTION FACTORS
ANTIFREEZE CORRECTION TABLE
Antifreeze Concentration
5% 10% 15% 20% 25% 30% 40%
Ethylene Glycol
Cooling 0.998 0.995 0.993 0.991 0.989 0.987 0.984
Heating 0.995 0.990 0.985 0.980 0.974 0.969 0.964
PD 1.040 1.055 1.080 1.105 1.135 1.165 1.210
Propylene Glycol
Cooling 0.995 0.992 0.987 0.983 0.979 0.975 0.970
Heating 0.989 0.982 0.975 0.967 0.958 0.951 0.943
PD 1.035 1.055 1.100 1.145 1.200 1.260 1.320
Methanol
Cooling 0.999 0.995 0.990 0.986 0.982 0.980 0.978
Heating 0.989 0.985 0.979 0.971 0.963 0.954 0.946
PD 1.050 1.072 1.094 1.116 1.140 1.165 1.196
AIRFLOW CORRECTION TABLE
Airflow %
Cooling Heating
TC SC Power THR HC Power HE
70 0.931 0.847 0.964 0.946 0.942 1.075 0.940
75 0.941 0.872 0.969 0.956 0.953 1.059 0.949
80 0.950 0.896 0.979 0.961 0.960 1.039 0.958
85 0.966 0.923 0.983 0.971 0.970 1.023 0.969
90 0.977 0.948 0.989 0.981 0.979 1.015 0.979
95 0.989 0.974 0.995 0.990 0.989 1.007 0.989
100 1.000 1.000 1.000 1.000 1.000 1.000 1.000
105 1.008 1.025 1.006 1.010 1.009 0.994 1.010
110 1.018 1.048 1.013 1.017 1.019 0.992 1.018
115 1.026 1.070 1.019 1.026 1.029 0.991 1.028
COOLING PERFORMANCE CORRECTION TABLE
Entering Air
WB (F)
Total Clg
Capacity
Entering Air DB (F) - Sensible Capacity Heat
Rejection 70 75 80.6 85 90 95
60 0.845 0.86 1.1 1.305 S S S 0.904
65 0.948 0.628 0.865 1.082 1.312 S S 0.979
66.2 1 0.539 0.777 1 1.22 1.475 S 1
70 1.061 0.631 0.855 1.081 1.331 1.543 1.039
75 1.162 0.618 0.848 1.09 1.296 1.107
S = Sensible cooling is equal to Total Cooling
HEATING PERFORMANCE CORRECTION TABLE
EAT DB (F) Heating Capacity Power Heat Extraction
45 1.101 0.785 1.162
50 1.080 0.832 1.125
55 1.059 0.878 1.079
60 1.039 0.926 1.064
65 1.019 0.960 1.023
68 1.000 1.000 1.000
70 0.990 1.028 0.983
75 0.974 1.064 0.957
80 0.951 1.111 0.918