Samsung AG010KSV Series, Installation Manual

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MAINTENANCE
Maintenance
72
English
Standard data for status of Anti-freeze (Based on temperature of anti-freeze at 15°C (59°F))
Type of anti-
freeze
(Based on 15°C
[59°F])
Concentration
[% Wt.]
Freezing point
(°C [°F])
Brine freezing point graph
Ethylene
glycol
10 -3.2 (26.2)
0 10
-60 (-76)
-50 (-58)
-40 (-40)
-30 (-22)
-20 (-4)
-10 (14)
0 (32)
20 30 40 50 60
Fr
ee
zing point °
C
(°F)
Concentration Wt (%)
Propylene glycol solution
Ethylene glycol solution
20 -7.8 (18.0)
30 -14.1 (6.6)
40 -22.3 (-8.1)
42 -25 (-13.0)
Propylene
glycol
10 -3.3 (26.1)
20 -7.1 (19.2)
30 -12.7 (9.1)
40 -21.1 (-6.0)
45 -25 (-13.0)
Performance correction factor according to brine concentration
Anti-freeze Description 10 % 20 % 30 % 40 % 50 %
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 loss 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 loss 1.040 1.098 1.174 1.273 1.405
The water flow rate that appears on the module control and DMS is optimized based on the water. In order to use
brine, the water flow rate may appear larger than the actual value.