Integrated Water Treatment

SMART control via a single integrated command centre that incorporates all the control, monitoring and communication functions for your water treatment control and chemical automation needs

Water Treatment     Chemical Automation     Saturation and Water Balance     Heater Control     Pump and Filter Control     Web Access

INTEGRATED WATER TREATMENT

The new concept of Integrated Water Treatment combines all the required control functions for water treatment into a single command centre.  Introduced by CHEMTROL® since 1996, this unique method is influencing the design of aquatic facilities throughout the country.

CHEMTROL® PC6000 and PC7000 Integrated Controllers incorporate all the monitoring, control and communication functions into a single integrated command centre designed around a powerful microprocessor:

  • Chemical Automation with sanitizer and pH control,
  • Water Balance with display of the Langelier Saturation Index and automatic control of conductivity or Total Dissolved Solids (TDS),
  • Heater Control with automatic temperature control and energy saver program,
  • Pump Control and Filter Control with weekly pump operation program and automated sequential backwashing of single or multiple filters,
  • Web Access with CHEMCOM® Communication software for remote monitoring and full operation.

ADVANTAGES OF INTEGRATION

The first advantage of integration is the simplicity of installation with all sensing and control components connected to a central unit.

 

Another advantage is ease of operation for the operator with all operating functions displayed on one large Display Screen located on the front panel of the controller.

From an operational standpoint, there is another significant advantage in the increased safety of operation due to the interrelationship between the different control mechanisms. For instance, during backwashing operations, the chemical feeders are automatically disabled to prevent accidental overfeeding. Similarly, before the main recirculation pump is shut down, the heater is first turned off to allow for cooldown of the heating elements (fireman delay).

 

WATER TREATMENT AS A WHOLE

Water treatment for swimming pools, spas and industrial applications requires the combination of physical and chemical processes, including pumping, filtration, chemical treatment, heating and water replacement. Up to now, the processing equipment was made by different manufacturers and controlled individually, resulting in complicated and inefficient system installation and operation. The CHEMTROL® PC6000 and PC7000 Integrated Controllers incorporate all the monitoring, control and communication functions into a single integrated command center designed around a powerful microprocessor. The integrated Main Screen display enables the operator to supervise all the process functions at a glance and to quickly respond to any changing condition.

The CHEMTROL® PC6000 and PC7000 operate like a computer with full-screen displays and direct-access menus and sub-menus. The front panel keypad is used to move up and down each menu and enter or exit the sub-menus. All operating functions can be easily modified from the keypad, including sensor calibration, control set-points, alarm levels and the programs for superchlorination, sequential backwashing, chemical saving and energy saving.

With the communication package, all facilities can be monitored through Web-based access. This allows real-time supervision by management and remote troubleshooting by a CHEMTROL® representative or a Qualified Dealer. The remote operation option makes it possible to control all operating functions from a remote PC computer.

CHEMICAL AUTOMATION

By constantly monitoring the pH of the water and the activity of the sanitizer, Chemical Automation makes it possible to maintain clean and safe water at all times with a significant reduction in the cost of chemicals, maintenance and repairs. It is now recognized as a must for all commercial and public pools and spas, as well as for quality residential installations.

ORP is used to monitor the Oxidation-Reduction Potential in the water produced by a true oxidizer, like ozone, or an oxidizing sanitizer, like chlorine or bromine. The ORP MENU includes selection of the control mode (Off, Manual, Auto or Timer), sensor calibration (1, 2 or 3 points), setpoint level, high and low alarms, shocking and chemical saver programs. It also displays the run time for the current feed event and cumulative run time. Shock treatment can be initiated manually or under programmable weekly or multi-weekly schedules.

The SANITIZER MENU is used to control the chlorine or bromine level in terms of sanitizer concentration (parts per million or milligrams/liter), obtained by conversion from ORP and pH values using a proprietary algorithm or from an amperometric sensor. The sanitizer concentration readings can be calibrated to account for the effect of cyanuric acid stabilization. Superchlorination can be initiated manually or under programmable weekly or multi-weekly schedules.

The pH MENU is used in the same way to select the pH control parameters using either acid or base feed or both. It also includes an Acid Wash program for periodic injection of an acid rinse solution to clean the heads of the sensors.

SATURATION AND WATER BALANCE

Proper control of Saturation and Water Balance is required to maintain water quality and to avoid the development of scaling or corrosive conditions. Up to three different types of chemical additives – such as inhibitor and biocides for cooling towers – can be programmed separately for automatic addition as a function of time, bleed activation, pH control activation or cumulative flow rate.The Conductivity sensor monitors the concentration of dissolved solids by measuring the conductivity of the water. The data can be displayed either in conductivity units (microsiemens/cm) or in parts per million of Total Dissolved Solids (TDS), using an operator-selectable conversion factor.

The CONDUCTIVITY MENU is used to set automatic dumping (bleeding) of water when the dissolved solid concentrations becomes too high, selecting either a Conductivity or a TDS control setpoint to activate the dump valve. Backfilling of water is done simultaneously with a level control activated valve.

The Langelier Index calculates the saturation condition from the pH and Temperature sensor inputs and from manual data entry for Alkalinity and Calcium Hardness. The water saturation condition is constantly displayed on the Main Screen as either “OK”, “Scaling” or “Corrosive” using standard Langelier Index limits. If a scaling or corrosive condition develops, it is immediately indicated with a flashing display on the Main Screen. “What if” analyses can be run at any time by manually entering different values for alkalinity, calcium hardness, pH and temperature.

TEMPERATURE AND HEATER CONTROL

Temperature Sensor readings are displayed either in degrees Fahrenheit or Celsius and used to control the heater. The HEATER MENU is used to set the heater control to Manual or Automatic using a programmable seven-day schedule with separate daily ON and OFF times. The energy saver program is used to lower the water temperature during hours when the facility is not in use, thereby realizing substantial savings on heating costs.

PUMP AND FILTER CONTROL

Filtration control includes manual or programmable operation of the main recirculation pump and backwashing cycle using data input from the flow sensor and from the influent and effluent pressure sensors. This eliminates the need for the more expensive and less reliable mechanical sequencers used in traditional filter rooms.With the PUMP MENU, the main recirculation pump can be set to Manual for continuous 24-hour operation or to Automatic with a seven-day schedule. Protection of the heater is assured with the adjustable fireman delay to allow for cooldown of the heater before water recirculation is stopped.

The FILTER MENU is used to program the backwash schedule based on time cycle or on pressure differential. Multiple filters are backwashed in sequence with adjustable backwash and advance time for each filter. Electrical, hydraulic or pneumatic valves can be used to distribute the water flow through the different filters.

Web Access with CHEMCOM® COMMUNICATIONS

CHEMCOM® web access communication provides remote monitoring and full operation for all CHEMTROL® Programmable Controllers.

The CHEMCOM® software is a proprietary Windows program that offers a true duplex operation with identical duplicate screens on both the controller and the computer. This means that every event on the controller or action on the remote computer is immediately reproduced on the other screen. This unique feature is particularly useful for remote operating and eliminates the need to learn a new computer program.

Local Ethernet network is the best way to login. it requires a local Ethernet network with static IP address.
The controller is basically connected to the network as an additional computer. It can be accessed from any computer on the network once CHEMCOM® software is ready to operate. It can also be accessed from outside the network by connecting to the Internet.