McQuay MAC040A - Technical Data; Evaporator Performance Data; Glycol Correction Factors

Technical Data
Evaporator pressure drop and Hydraulic lift
MAC/ M4AC040A/AR MAC/ M4AC050A/AR MAC/ M4AC058A/AR
M4AC040AE/ARE M4AC050AE/ARE M4AC058AE/ARE
Flowrate Pressure drop Hydraulic lift Flowrate Pressure drop Hydraulic lift Flowrate Pressure drop Hydraulic lift
(m3/hr) kPa kPa (*) (m3/hr) kPa kPa (*) (m3/hr) kPa kPa (*)
0.72 10 249 0.86 5 250 1.15 7 240
1.22 21 223 1.19 12 233 1.44 13 227
1.51 38 176 2.02 35 179 2.20 28 181
2.20 79 130 2.56 58 127 2.52 37 150
2.50 99 89 3.53 108 23 4.18 74 27
MAC/ M4AC075A/AR MAC/ M4AC100A/AR MAC/ M4AC125A/AR
M4AC075AE/ARE M4AC100AE/ARE M4AC125AE/ARE
Flowrate Pressure drop Hydraulic lift Flowrate Pressure drop Hydraulic lift Flowrate Pressure drop
Hydraulic
lift
(m3/hr) kPa kPa (*) (m3/hr) kPa kPa (*) (m3/hr) kPa kPa (*)
2.05 10 281 2.77 6 270 3.49 12 248
3.17 22 249 3.67 10 245 4.43 19 210
4.03 33 216 5.04 18 197 6.30 37 131
4.75 45 179 6.19 26 150 8.03 57 32
5.80 65 132 7.60 37 75 8.46 63 18
(*) Hydraulic lift = Pump lift -(evaporator pressure drop + hydraulic kit pressure drop)
Correction Factors with GLYCOL use
CAPACITY FACTOR
GLYCOL %
LWT/ deg C 10 20 30 40
-12.2 0.8 0.7
-9.4 0.827 0.735
-6.7 0.88 0.85 0.756
-3.9 0.9 0.876 0.781
-1.1 0.925 0.925 0.892 0.796
1.7 0.945 0.938 0.906 0.809
4.4 0.956 0.949 0.918 0.82
7.2 0.965 0.959 0.927 0.829
10.0 0.962 0.957 0.926 0.828
GLYCOL % WATER FLOW
PRESSURE
DROP
10 1.015 1.06
20 1.040 1.12
30 1.080 1.18
40 1.135 1.24
31