Trane S Series - Page 41

RLC-SVX09Q-EN
41
Table 14. Low evaporator refrigerant temperature cutout (LRTC) and low water temperature cutout (LWTC) – ethylene
or propylene glycol (continued)
Ethylene Glycol Propylene Glycol
Inhibitor
Percentage
(%)
Solution
Freeze Point
(°F)
Minimum
Recommended
LRTC (°F)
Minimum
Recommended
LWTC (°F)
Inhibitor
Percentage
(%)
Solution
Freeze Point
(°F)
Minimum
Recommended
LRTC (°F)
Minimum
Recommended
LWTC (°F)
15 21.5 18.1 24.5 15 23.1 19.7 26.1
16 20.6 17.2 23.6 16 22.4 19.0 25.4
18 18.7 15.3 21.7 18 20.9 17.5 23.9
20 16.8 13.4 19.8 20 19.3 15.9 22.3
22 14.7 11.3 17.7 22 17.6 14.2 20.6
24 12.5 9.1 15.5 24 15.7 12.3 18.7
25 11.4 8.0 14.4 25 14.8 11.4 17.8
26 10.2 6.8 13.2 26 13.8 10.4 16.8
27 9.0 5.6 12.0 27 12.7 9.3 15.7
28 7.7 4.3 10.7 28 11.6 8.2 14.6
29 6.4 3.0 9.4 29 10.5 7.1 13.5
30 5.1 1.7 8.1 30 9.3 5.9 12.3
32 2.3 -1.1 5.3 32 6.8 3.4 9.8
34 -0.7 -4.1 5.0 34 4.1 0.7 7.1
35 -2.3 -5.0 5.0 35 2.7 -0.7 5.7
36 -3.9 -5.0 5.0 36 1.3 -2.1 5.0
38 -7.3 -5.0 5.0 38 -1.8 -5.0 5.0
40 -10.8 -5.0 5.0 40 -5.2 -5.0 5.0
42 -14.6 -5.0 5.0 42 -8.8 -5.0 5.0
44 -18.6 -5.0 5.0 44 -12.6 -5.0 5.0
45 -20.7 -5.0 5.0 45 -14.6 -5.0 5.0
46 -22.9 -5.0 5.0 46 -16.7 -5.0 5.0
48 -27.3 -5.0 5.0 48 -21.1 -5.0 5.0
50 -32.1 -5.0 5.0 50 -25.8 -5.0 5.0
52 -37.1 -5.0 5.0 52 -30.8 -5.0 5.0
54 -42.3 -5.0 5.0 54 -36.1 -5.0 5.0
55 -45.0 -5.0 5.0 55 -38.9 -5.0 5.0
56 -47.8 -5.0 5.0 56 -41.8 -5.0 5.0
58 -53.7 -5.0 5.0 58 -47.8 -5.0 5.0
60 -59.8 -5.0 5.0 60 -54.2 -5.0 5.0
Table 15. Low evaporator refrigerant temperature cutout (LRTC) and low water temperature cutout (LWTC) – methanol
and propylene glycol
Methanol Calcium Chloride
Solution
Freeze Point
(°F)
Minimum
Recommended
LRTC (°F)
Minimum
Recommended
LWTC (°F)
Inhibitor
Percentage
(%)
Solution
Freeze Point
(°F)
Minimum
Recommended
LRTC (°F)
Minimum
Recommended
LWTC (°F)
32.0 28.6 35.0 0 32.0 28.6 35.0
29.0 25.6 32.0 2 30.3 26.9 33.3
26.4 23.0 29.4 4 28.7 25.3 31.7
25.1 21.7 28.1 5 27.8 24.4 30.8
Installation - Mechanical