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Titan Central Chillers
8.3
INHIBITED PROPYLENE GLYCOL
A.
To operate liquid chillers below 48°F, it is necessary to add inhibited propylene glycol
to the circulating system to lower the freeze point and prevent damage to the cooling
system. Inhibited propylene glycol contains corrosion inhibitors which are compatible with
most industrial heat transfer surfaces. Inhibited propylene glycol is manufactured by:
• Dow Chemical - "DowFrost" (1-800-258-2436)
• Monsanto "Therminol FS" (1-800-459-2665)
• Advantage Engineering "Thermofluid" (1-317-887-0729)
B.
Automotive anti-freeze must never be used in industrial heat transfer applications.
Automotive anti-freeze contains silicate type corrosion inhibitors designed to be
compatible with automotive components. In an industrial application, the silicates will
form a gel on the heat transfer surface which will result in substantial reduction in cooling
capacity and is virtually impossible to remove.
8.4
CHILLER CAPACITY AND DERATE CHART
A
Standard chiller rating is at 50°F. For all other temperature settings, output tonnage is
altered as follows:
NOTES:
1.
If operation of the chiller at less than 48°F is required, an inhibited propylene
glycol solution is required.
2.
Consult factory for chiller operation below 20°F.
3.
Ambient conditions affect air cooled chiller operation and capacity. Standard
rating is at 95°F entering air temperature. For ambient air conditions greater than
95°F, chiller derating will occur. For ambients over 95°F consult factory.
OUTPUT
FULL
TEMPERATURE
AVAILABLE %
°F
CAPACITY
60
50
45
40
35
30
25
20
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
105%
100%
90%
80%
70%
60%
50%
40%
Fax: 317-881-1277
Page: 84
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