4.3 Capacity correction factor by antifreeze
If a antifreeze is used, pressure drop and capability degradation of the system can be occurred. Refer to the next table.
Antifreeze Type Correction Factor Item
Antifreeze % by wt
10% 20% 30% 40% 50%
Methanol
Cooling Capacity 0.998 0.997 0.995 0.993 0.992
Heating Capacity 0.995 0.990 0.985 0.979 0.974
Pressure Drop 1.023 1.057 1.091 1.122 1.160
Ethylene glycol
Cooling Capacity 0.996 0.991 0.987 0.983 0.979
Heating Capacity 0.993 0.985 0.977 0.969 0.961
Pressure Drop 1.024 1.068 1.124 1.188 1.263
Propylene glycol
Cooling Capacity 0.993 0.987 0.980 0.974 0.968
Heating Capacity 0.966 0.973 0.960 0.948 0.935
Pressure Drop 1.040 1.098 1.174 1.273 1.405
Installation of Outdoor Unit
4. Water Control
Installation
8
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