AMCOT ST SERIES FIBERGLASS COOLING TOWER
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GENERAL MAINTENANCE
FILL MEDIA
Your Amcot ST Type tower is supplied with fill media constructed from PVC embossed sheets which are
glued together to form packs or sections which are then installed in layers. The fill media is the core
location where the heat transfer takes place within the unit.
There is little to no maintenance required to the fill media, however to extend the life of the media it is
highly recommended that customers incorporate both water treatment (chemical or non-chemical) and
a solids filtration system whether this be an inline strainer or solids filtration system. Fill media
deterioration over time occurs ultimately from the material becoming fouled by scale or debris over
time which creates blockages within the media and prevents the air and water from mixing efficiently.
For water treatment guidelines, refer to page 43 for more information.
For solids filters it is recommended that at a minimum, your system should incorporate a basket strainer
type of filter which will capture debris that is small enough to pass through the cooling tower’s suction
strainer. There are multiple forms of solid filtration available including but not limited to sand filters or
vortex separators.
Attempting to clean the fill media with a pressure washer or by other forceful means can damage the fill
media and actually cause additional loss of performance or capacity. It is not recommended that
pressure washers or mechanical cleaning of the fill media be performed.
There are also chemical products sold and marketed in the industry that will “clean” the fill media by
temporarily introducing the chemicals into the circulating water system. These chemicals have
documented history of working, but there are also many customers whom claim they do not work.
Therefore, the use of any product of this nature should be handled by a water treatment specialist or
trained professional who is familiar with the product. Incorrect use of such chemicals could actually
cause more damage to your tower or system overall as many of these chemical solutions can be very
aggressive to aluminum and galvanized steel. Caution should be taken if you attempt to clean the fill
with such chemicals. Amcot does not support the use of these chemicals and any damage that they may
cause is not covered under our warranty.
WATER BASIN
The water basin on the Amcot ST Series is constructed of FRP similar to the casing of the tower.
Overtime the basin will collect dirt and debris from the environment. Therefore it is recommended that
the tower is always operated with the suction strainer in place which should be inspected and cleaned
regularly. Also the tower should be drained and cleaned 1-2 times per year at a minimum to remove
sediment that has collected in the basin. Your water basin incorporates a drain connection for this
purpose.
If a crack develops on your water basin, it can be repaired by cleaning the area and applying polyester
fiberglass resin and matting to the damaged area. These FRP repair kits can be found at most home
improvement in the paint section or a local marine parts store.
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