EcoWater CHC Installation & Service Manual page 18

Removing the Corrosion Coupons (Optional)
1. Turn off the isolation valves at the rack to stop all water flow.
2. Loosen and remove the holder nuts.
3. Slide out the holders, exposing the coupons.
4. Remove the coupon retention screws.
5. Remove the coupons, wipe them clean with a damp cloth.
6. Place each coupon back in its original envelope.
7. Place the retention screws back into the coupon holder rods.
8. Slide the coupon holder rods back into the rack.
9. Secure all rods by tightening their corresponding nuts.
10. Open the isolation valves and make sure no leaks are present.
11. Adjust the flow meter until the five to eight GPM flow rate is achieved.
12. Return the coupons to EcoWater CHC for examination and analysis.
13. A report will be generated and returned to you with the results.
Cleaning and Calibrating the Conductivity Controller
The filtration systems may have been provided with a toroidal conductivity probe. Once the Air
calibration is completed, the Hi Calibration can be set to match the verified conductivity of the system
water. Cleaning of the probe is required on a quarterly basis.
From the Main Screen, press the F2 "Cal" button.
The screen will change and press the "Conductivity" square on the
Display.
The screen will change. Isolate the skid from the tower water by
closing off the isolation valves.
Remove the conductivity probe from its tee and clean with a soft brush
to remove any loose debris.
Allow the probe to stay in the air for a period of 1 minute to allow for
signal stabilization. Press the Air Cal "Save" button as shown as #1 to
the right. The Current value should change to 0.
Install the probe back into the sample tee and open all isolation valves
closed earlier. Turn the CHC system pumps back ON.
Measure the system's water with a calibrated conductivity meter.
Enter the measured value in the "Value" box as shown in #2 to the
right.
Press the Hi Cal "Save" button as shown in #3 to the right. The
Current value should change to match your input measured value.
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