Advantage Engineering Maximum Instruction Manual page 75

MK Series Portable Chiller : Air-Cooled : HE INSTRUMENT
8.4 WATER QUALITY CONTROL
A. Lack of, as well as, improper water treatment can damage the
chilling unit. The services of a competent water treatment specialist
should be obtained and their recommendations followed. It is the
equipment owner's responsibility to prevent damage from foreign
material or inadequate water treatment.
B. The two main things to consider for water treatment in chillers are
corrosion and organism growth. Proper chemical treatment can
control PH levels and algae growth. An alternative to chemical
treatment is the addition of 20% inhibited propylene glycol to the
water. This will help prevent organism growth and coat the heat
transfer surfaces with corrosion inhibitor.
8.5 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.
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
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