Data Aire DAFC 06, Инструкция по установке, эксплуатации и обслуживанию

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AIR-COOLED FLUID COOLER
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Air-Cooled Condenser Manual
3.0 GLYCOL SYSTEMS
3.1 Glycol Concentration
The system must be filled with water and the appropriate amount of antifreeze (ethylene or
propylene glycol) making an aqueous solution which protects against winter freezing. In
order to achieve the approximate glycol concentration, it is necessary to know the total system
volume. The total system volume consists of the fluid cooler volume, the evaporator unit
volume and the volume of the interconnecting piping.
The following tables can be used for arriving at an approximate system volume. After
installation, the glycol percentage should be checked. The glycol percentage must be checked
after installation and at regular intervals to ensure against freeze protection. Hydrometers are
required to insure an accurate reading.
WARNING: Fluid coolers operating without glycol mixture and
operating in ambient temperatures less than 32°F (0°C) must have
adequate freeze protection.
NOTICE: Risk of improper handling of glycol products can cause
environmental damage. Before using any glycol products, review the
latest manufacturer's Material Safety Data Sheets and ensure that you
can use the product safely. The installing contractor must read,
understand and comply with the information on the product packaging
and in the current Material Safety Data Sheets.
This information also must be available to anyone responsible for
operation, maintenance and repair of the fluid cooler and related
equipment. Because government regulations and use conditions are
subject to change, it is the end user responsibility to determine that this
information is appropriate and suitable under current, applicable laws and
regulations.
3.1 Preparing a Glycol System
Ensure the fluid system is clean of any dirt, oil, or metal filings that could contaminate the
cooling system piping and prevent contamination of the fresh glycol solution and fouling of the
fluid cooler piping. Flush the system thoroughly using a mild cleaning solution or high-quality
water and then completely drain before charging with glycol.
Cleaning a new system is just as important as cleaning an old one. New systems can be
coated with oil or a protective film. Dirt and scale are also common. Any residual contaminants
could adversely affect the heat-transfer stability and performance of your system. In most
cases, special cleaners are needed to remove scale, rust, and hydrocarbon foulants from
pipes, manifolds, and passages.
Follow the manufacturer’s instructions when using any glycol system cleaning products.