BAC RC Series, Руководство по эксплуатации и техническому обслуживанию

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W W W . B A L T I M O R E A I R C O I L . C O M . A U
M A R 2 1 0 - 2
RC SERIES
Corrosion Protection
WATER TREATMENT
CORROSION AND SCALE CONTROL
BIOLOGICAL CONTROL
GRAY WATER AND RECLAIMED WATER
CHEMICAL TREATMENT REQUIREMENTS
PASSIVATION
LONG TERM CARE OF STAINLESS STEEL
SYSTEM CLEANING
Corrosion Protection
Water Treatment
BAC products are constructed of corrosion-resistant materials. Other
materials listed below are used in the equipment construction:
• Galvanized Steel Components: Inspect the galvanized steel
components for blemishes or corrosion. Wire brush and recoat the
affected areas with a cold galvanizing compound such as zinc rich
compound (ZRC).
• Stainless Steel Components: Inspect stainless steel components for
signs of blemishes or corrosion. See “Long Term Care of Stainless
Steel” on page 27 for cleaning and care instructions.
A proper water treatment program, administered under the supervision
of a water treatment specialist, is an essential part of routine
maintenance to ensure the safe operation and longevity of evaporative
cooling equipment, as well as other system components. In evaporative
cooling products, cooling is accomplished by evaporating a small
portion of the recirculating water as it flows through the unit. As the
water evaporates, the dissolved solids originally present in the water
remain behind and if not controlled, the concentration of dissolved
solids will increase rapidly. This can lead to corrosion, scale, or
biological fouling which may negatively affect heat transfer as well as
the longevity of system components. A water treatment program must
handle the following:
• Corrosion - Red rust on steel components and white rust on
galvanized surfaces may affect the longevity of system components.
• Scale Formation - Scale not only reduces heat transfer and system
efficiency, but also may lead to under deposit corrosion. If scale is
not controlled, it may continue building on critical components and
severely impact thermal performance.
• Biological Fouling - Slime and algae formations may reduce
heat transfer, promote corrosion, and harbour pathogens such as
Legionella.
Water Treatment