AC-SVX002C-EN
31
Table 11.
Low ambient refrigerant temperature cutout (LERTC) and low water temperature cutout (LWTC) —ethlyene
glycol (continued)
Glycol
Percentage
(%)
Solution
Freeze Point
(°F)
Minimum
Recommended
LERTC (°F)
Minimum
Recommended
LWTC (°F)
Minimum Chilled Water
Set Point
(°F)
32
2.3
-3.7
6.3
12.0
33
0.8
-5.2
4.8
10.5
34
-0.7
-6.7
3.3
9.0
35
-2.3
-8.3
1.7
7.4
36
-3.9
-9.9
0.1
5.8
37
-5.6
-11.6
-1.6
4.1
38
-7.3
-13.3
-3.3
2.4
39
-9.0
-15.0
-5.0
0.7
40
-10.8
-16.8
-6.8
0.0
41
-12.7
-18.7
-7.0
0.0
42
-14.6
-20.6
-7.0
0.0
43
-16.6
-21.0
-7.0
0.0
44
-18.6
-21.0
-7.0
0.0
45
-20.7
-21.0
-7.0
0.0
46
-22.9
-21.0
-7.0
0.0
47
-25.1
-21.0
-7.0
0.0
48
-27.3
-21.0
-7.0
0.0
49
-29.7
-21.0
-7.0
0.0
50
-32.1
-21.0
-7.0
0.0
51
-34.5
-21.0
-7.0
0.0
52
-37.1
-21.0
-7.0
0.0
53
-39.7
-21.0
-7.0
0.0
54
-42.3
-21.0
-7.0
0.0
55
-45.0
-21.0
-7.0
0.0
Table 12.
Low ambient refrigerant temperature cutout (LERTC) and low water temperature cutout (LWTC) —
propylene glycol
Glycol
Percentage
(%)
Solution
Freeze Point
(°F)
Minimum
Recommended
LERTC (°F)
Minimum
Recommended
LWTC (°F)
Minimum Chilled Water
Set Point
(°F)
0
32.0
26.0
36.0
41.7
1
31.6
25.6
35.6
41.3
2
31.0
25.0
35.0
40.7
3
30.4
24.4
34.4
40.1
4
29.9
23.9
33.9
39.6
5
29.3
23.3
33.3
39.0
6
28.7
22.7
32.7
38.4
7
28.1
22.1
32.1
37.8
8
27.6
21.6
31.6
37.3
9
27.0
21.0
31.0
36.7
10
26.4
20.4
30.4
36.1
