EcoWater CHC Series, Service And Troubleshooting Manual

Page: 9 / 130

9
bag filter housing you have to be able to order appropriate bags for replacement purposes. CHC
recommends the use of dual bags within these systems. If used in a side stream arrangement, we
recommend approximately 20 % of the filtration water flow. If the Bag Filter is in line (100% of
flow), then a bypass system must be utilized to allow filtration flow to continue when the bag
blinds off.
Ball Valve- A ball valve is any valve that utilizes a ball for the valve mechanism, as the ball
rotates a hole within the valve aligns with the inlet and outlet connections and water is allowed to
flow.
Basket Strainer- The basket strainer is an initial filtering element that is placed in front (suction)
of the pump. This element consists of a housing and basket. The basket has holes placed into it
that initially remove any larger debris from the water flow that will not pass through the pumps
impeller. The basket strainer holes are normally specified as smaller than the pump specifications
indicate. The basket is required to be emptied at appropriate intervals to make sure the pump’s
flow is not restricted. Basket strainers come in many varieties and manufacturers and require
appropriate maintenance to ensure no air intake into the system. CHC will normally oversize the
basket strainer to make sure that the time between cleanings is maximized.
Biodispersant- A Biodispersant is a chemical surfactant that is used to loosen any Biofilm that
may be on the walls of a cooling system. It is basically a soap that loosens up the film and allows it
to flow with the water to the CHC chamber for treatment.
Biofilm - Biofilm is a growth of Biological material on surfaces within a system. This could
include a growth of algae or other films on surfaces that could decrease the efficiency of the system
as well as harbor other detrimental bacterial growths like Legionella. In many cases a Dispersant
must be used to dislodge this film to allow it to be destroyed by the CHC treatment or biocides.
Blow Down- Blow Down is the water that is removed from the system to control the conductivity
levels within the system. Blow Down is preferred from a water source within the system that
contains the highest conductivity. As Blow Down water is removed it is replaced by fresh Make
Up water.
Calcium Hardness (Ca): Calcium is one of the principle elements making up the earth’s crust.
Calcium normally gets into water when rain water causes calcium carbonate to leach from
limestone deposits in the soil. It is the major contribution to water hardness. Calcium aids in the
formation of soap curds during cleaning and in some instances can form hard scale.
Cartridge filters- Cartridge Filters can be used in line or side stream they remove any debris
within the filtration water flow that is larger than the cartridge’s micron size. It is important to
know what type of Cartridge filter housing you have to be able to order appropriate bags for
replacement purposes. CHC recommends the use of easy clean cartridges within these systems to
make cleaning easier. If used in a side stream arrangement, we recommend approximately 20 % of
the filtration water flow.
Centrifugal Separator- A centrifugal separator is a vessel that utilizes a speed centrifugal
spinning to separate out the heavier than water particles from the water stream. It is very important
to size a separator according to the filtration flow to make sure appropriate separator forces are