Corrosion Protection; Water Treatment - BAC FXV-0806-12D Series Operation & Maintenance Manual

FXV, FXV3, CXVB, AND CXVT UNITS

Corrosion Protection

BAC products are constructed of corrosion-resistant materials. The fill is made of a polyvinyl
chloride (PVC), which is not susceptible to rot, decay, rust or biological attack. 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).
• Thermosetting Hybrid Polymer Components: Inspect the galvanized steel components
protected with the thermosetting hybrid polymer for scratches, scrapes, or blemishes.
To cosmetically touch up these areas with color matched paint use BAC Part #160133
available from your local BAC Representative.
• Stainless Steel Components: Inspect stainless steel components for signs of blemishes
or corrosion. See "Long Term Care of Stainless Steel" page 28 for cleaning and care
instructions.
• Fiberglass Reinforced Polyester (FRP) Components: Series 3000 Cooling Towers are
provided with FRP casing panels as standard. Inspect the casing panels for accumulation
of dirt and clean them with soap and water as necessary.
• TriArmor Corrosion Protection System: Inspect components protected with the TriArmor
®
Corrosion Protection System for signs of deep scratches or blemishes, especially in areas
with field penetrations. Touch these up with 3M™ Windo-Weld™ Super Fast Urethane
which is available through your local BAC Representative (BAC Part # RK1015).
• Pultruded Fiberglass Reinforced Polyester (PFRP) Components: Units are optionally
provided with PFRP hot water basins. Inspect the basin panels for accumulation of
dirt and clean them with soap and water as necessary.

Water Treatment

A proper water treatment program, administered under the supervision of a competent 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.
• Corrosion – Red rust on steel components and white rust on galvanized surfaces may
affect the longevity of system components.
®
NOTE: Since the quality of the
ambient air and make-up water
varies significantly from job site to
job site, BAC strongly recommends
obtaining the services of a water
treatment specialist prior to the
initial start-up of the evaporative
cooling equipment. Additionally,
to protect against the risk of
Legionella contamination, never
operate the cooling equipment
without adequate biological control.
WW W.BALTI MOREAIR CO IL .C O M WW W.BALTI MOREAIR CO IL .C O M
3
25 25