Trane RTAF-SVX001K-EN - Page 38

Installation Mechanical
38 RTAF-SVX001K-EN
Free-Cooling Unit with Propylene Glycol, Without Turbulators
Figure 26. Evaporator water pressure drop, 35% propylene glycol, free-cooling on —
115 to 250 tons, 2-pass without turbulators
0
20
40
60
80
100
120
140
160
180
200
220
0 200 400 600 800 1000 1200
Pressure Drop (ft H2O)
Flow (GPM)
g,p ,
115
130
150
170
180
200
215
230
250
Figure 27. Evaporator water pressure drop, 35% propylene glycol, free-cooling on —
280 to 500 tons, 1-pass without turbulators
0
20
40
60
80
100
120
140
160
180
200
220
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Pressure Drop (ft H2O)
Flow (GPM)
280
310
350
410
450
500