990-4618A-001 InRow™ Chilled Water Air Conditioners Technical Specifications 37
Glycol Correction Factors
All correction factors for ACRC100 series models are based on the unit entering the following conditions:
29.4°C (85°F) DB/18.1°C (64.5°F) WB, 1368.6 l/s (2900 CFM), 0.83 l/s (13.2 GPM), and 7.2°C (45°F) EFT.
All correction factors for ACRC500 series models are based on the unit entering the following conditions:
29.4°C (85°F) DB/18.1°C (64.5°F) WB,2832 l/s (6000 CFM), 1.72 l/s (27.3 GPM), and 7.2°C (45°F) EFT.
*Multiply capacity of device or system by factor above for % solution.
**Multiply pressure drop of system by factor above for % solution.
***Glycol concentrations over 50% are not recommended.
Altitude Correction Factors
Density ratio is used for air flow correction factor.
Capacity correction is used for performance de-rating.
Performance
Criteria
Glycol
Solution
Percent Weight of Solution ***
0 10% 20% 30% 40% 50%
Capacity*
Ethylene 1.00 0.97 0.93 0.88 0.81 0.75
Propylene 1.00 0.96 0.90 0.82 0.77 0.74
Pressure Drop**
Ethylene 1.00 1.04 1.13 1.21 1.31 1.41
Propylene 1.00 1.09 1.20 1.35 1.52 1.67
Room Condition: 72 DB/50% RH
Altitude - m (ft) 0
305
(1,000)
610
(2,000)
915
(3,000)
1219
(4,000)
1524
(5,000)
1829
(6,000)
2134
(7,000)
2438
(8,000)
2743
(9,000)
3048
(10,000)
Specific volume - cm
3
/g
(ft
3
/lb)
847.77
(13.58)
879.61
(14.09)
912.70
(14.62)
947.66
(15.18)
983.86
(15.76)
1021.32
(16.36)
1061.28
(17.00)
1103.10
(17.67)
1146.80
(18.37)
1193.00
(19.11)
1241.69
(19.89)
Density - g/m
3
(lb/ft
3
)
1185.37
(0.074)
1137.31
(0.071)
1089.26
(0.068)
1057.22
(0.066)
1009.16
(0.063)
977.13
(0.061)
945.10
(0.059)
913.05
(0.057)
865.00
(0.054)
832.97
(0.052)
800.92
(0.050)
Density Ratio 1.000 0.964 0.929 0.895 0.862 0.830 0.799 0.769 0.739 0.711 0.683
Capacity Correction 1.000 0.981 0.962 0.933 0.913 0.884 0.865 0.846 0.826 0.807 0.787
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