EcoWater CHC Series, Service And Troubleshooting Manual, Page: 16 / 130

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Rydlyme- A buffered acid that is used to remove scale. It is a stable product that can be shipped
without problem or sent down the drain once used. It is recommended to use the appropriate PPE
when using this product (Eyewear and gloves, if gloves are not available, wash any skid that
comes in contact with the Rydlyme with a mild soap and water solution)
Scale - Minerals such as calcium and magnesium are relatively insoluble in water and can form
scale deposits when exposed to conditions commonly found in cooling water systems. A layer of
scale as thin as 1/64 inch can reduce heat exchanger efficiency by 15%. Scale formation can be
controlled by scale inhibitors such as threshold inhibition chemicals and scale conditioners.
Chemical treatments include acids, polymers and polyphosphates which prevent scale formation by
keeping the scale-forming minerals in solution to prevent deposits from forming. EcoWater’s CHC
treatment will normally cause a thin soft scale formation on the surfaces of the towers. This
inhibition layer should be soft and easily removed with the rubbing of a hand or strong water flow.
Solenoid Valve - A solenoid valve is a valve that is opened or closed in response to an electrical
signal sent across the coil. Solenoid valves can come in 2 or 3 way configurations (refers to the
number of connections on the valve). It is important to reference the part number on the valve
when ordering a replacement, this part number is found on the coil and it specifies the valve size as
well as the control voltage requirements.
Sweeper Jet or Nozzle- also called Eductors, The sweeper nozzles come in many sizes from 3
GPM all the way up to 33 GPM. They use this primary flow pushed through a venturi to increase
flow and push or sweep debris along the bottom of a tower’s basin towards the suction manifold.
When ordering a replacement sweeper jet, it is very important to replace it with the same GPM
flow. If you do not recognize the size, measure the length as well as the connection size for
reference when calling for a replacement.
Thermal Overload- The thermal overload is connected to the motor contactor and its job is to
monitor the continuous amperage draw of the pump motor. When the thermal overload identifies
that the pump is pulling too much amperage, it will automatically turn off the power. Most systems
will automatically reset the thermal overload if the Power disconnect is turned OFF and back ON.
The setting of the amperage trip point is calculated by the motor’s amperage x 1.15.
Timer- EcoWater CHC systems have used a timer to activate the purge actuator for the evacuation
of solids from the centrifugal separator. This timer has controls that allow for the setting of the ON
and OFF times, please refer to the reference section of this manual for specific instructions on the
set up of the Timers used by the CHC treatment systems.
Toroidal Sensor - The Toroidal conductivity sensor is a sensor that does allow the direct contact of
the electrical signal to the water it is monitoring. Non-Toroidal sensors will have two electrical
connections that pass a signal directly through the water to monitor the conductivity. A Toroidal
probe uses two electrical coils, one with a primary AC signal passing through it and the second is
the pick up coil. As water passes between the two coils, the amount of solids within the water
allow a portion of the primaries signal to pass to the secondary coil, the actual amount of signal that
passes through to the secondary coil is used to judge the amount of dissolved solids in the water.
Total Dissolved Solid (TDS): TDS is the total concentration of dissolved components, such as
salts and sugar. Salts, like NaCl, dissociate into ions; while some organic matters, like sugar, do