Installation Mechanical
RTAF-SVX001K-EN
39
Figure 28.
Evaporator water pressure drop, 35% propylene glycol, free-cooling off —
115 to 250 tons, 2-pass without turbulators
0
10
20
30
40
50
60
70
0
200
400
600
800
1000
1200
Pr
e
s
s
ur
e
D
ro
p
(f
t
H2
O
)
Flow (GPM)
g
,
p
,
115
130
150
170
180
200
215
230
250
Figure 29.
Evaporator water pressure drop, 35% propylene glycol, free-cooling off —
280 to 500 tons, 1-pass without turbulators
0
10
20
30
40
50
60
70
0
200
400
600
800
1000
1200
1400
1600
1800
2000
Pr
e
s
s
ur
e
D
ro
p
(f
t
H2
O
)
Flow (GPM)
280
310
350
410
450
500