Units With Free-Cooling Option - Trane RTAF-SVX001K-EN Manual

Installation Mechanical

Units with Free-Cooling Option

Free-Cooling Unit with Ethylene Glycol, Without Turbulators
Figure 18. Evaporator water pressure drop, 35% ethylene glycol, free-cooling on —
115 to 250 tons, 2-pass without turbulators
200
115
180
130
160
150
140 170
180
120
200
100
215
230
80
250
60
40
20
0
0 200
Figure 19. Evaporator water pressure drop, 35% ethylene glycol, free-cooling on —
280 to 500 tons, 1-pass without turbulators
200
180
280
310
160
350
140
410
120
450
100
500
80
60
40
20
0
0 200 400
34
g p
400 600
Flow (GPM)
600 800 1000
Flow (GPM)
800 1000
1200 1400 1600 1800
1200
2000
RTAF-SVX001K-EN