Aqua-Hot 375D, Руководство по установке

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© 2008 Aqua-Hot® 375-D Hydronic Heating System Installation Manual Rev. A © 2008 Aqua-Hot® 375-D Hydronic Heating System Installation Manual Rev. A
D-1
In order to ensure maximum performance and longev-
ity of an Aqua-Hot heating system’s boiler tank and
associated components, it has been determined that
there is a need to use distilled, de-ionized, or soft water
in combination with concentrated propylene glycol for
the Aqua-Hot’s antifreeze and water heating solution.
Please note that this is only necessary when mixing
concentrated propylene glycol antifreeze with water;
suppliers of pre-mixed antifreeze are responsible for
the use of high-quality (distilled, de-ionized, or soft)
water when preparing their antifreeze for sale.
Hard water possesses a high-level of calcium and
magnesium ions, which deplete the propylene glycol
antifreeze’s corrosion inhibitors. This, in turn, causes
the antifreeze and water heating solution to begin turn-
ing acidic, which can corrode the Aqua-Hot’s Boiler
tank and associated components prematurely. There-
fore, concentrated propylene glycol should be diluted
with distilled, de-ionized, or soft water which is 80 ppm
or less in total hardness. The local water agency should
have up-to-date water quality reports which should
indicate if the local tap water is within this guideline.
appendix D: antifreeze Mixture Water Quality Recommendations