Is My Cooling System Really OK? A 30 Minute Checklist to Enlightenment

Is My Cooling System Really OK? A 30 Minute Checklist to Enlightenment

Below is an itemized list of what VRTX service men look over when servicing the system.

1. Perform walk-around while visually inspecting the entire skid and plumbing
a. Looking for any issues, such as leaks, broken items, general condition
b. Make sure indicator lights are working properly

2. Record VRTX pressure and transducer display

3. Record separator inlet and outlet pressures/transducer display

4. Record auto filter inlet and outlet pressures/transducer display
a. Verify DP less than 3

5. Record conductivity controller conductivity reading

6. Record conductivity controller conductivity unit of measure

7. Record conductivity controller blow down set point

8. Record backwash count

9. Auto filtration-Initiate a manual backwash

10. Record the auto filters outlet pressure during a backwash

11. Record separator purge timer/blow down settings
a. Timer ON/OFF
b. VRTX PLC

12. Turn off power to the pump

13. Turn off power to the VRTX and filter pumps

14. Verify the VRTX gauges/transducer display returns to zero

15. Verify the separator gauges/transducer display returns to zero

16. Verify the auto filter gauges/transducer display returns to zero

17. Turn off main power disconnect

18. Turn off main power disconnect to the VRTX and filter pumps

19. Cycle all butterfly and ball valves

20. Valve off strainer(s)

21. Check and clean the strainer(s)

22. Check and clean the Cartridge filter

23. Check and replace the bag filter

24. Verify the bypass switch operation

25. Clean any inline strainers

26. Remove and clean the conductivity probe leave in the open air

27. Remove and clean the flow meter

28. Remove and clean the copper/silver ionizer probe
a. Replace if the probe is excessively worn

29. Turn main power disconnect on (PLC)

30. Confirm the conductivity reading is at zero

31. Reinstall the conductivity probe

32. Calibrate the conductivity probe
a. Walchem/LMI probes are calibrated with One Shot
b. PLC and Walchem Toroidal Probes are calibrated with a hand meter

33. Calibrate tranducers (if needed)

34. Open all vavles to their operational settings

35. Turn ON pumps

36. Verify and record VRTX pressure and transducer display

37. Verify and record separator inlet and outlet pressures/transducer display

38. Verify and record auto filter inlet and outlet pressures/transducer display

39. Record conductivity controller conductivity reading

40. Water samples are to be taken from each sump and make up once. The samples are to be shipped to VRTX

41. On systems that have copper silver ionizer:
a. Test the residual copper in the sump with the test strips provided
b. The residual copper should be .3ppm. Add instant ions if needed to increase the residual copper levels

42. Copper silver settings
a. Start up-Dial to 50%
b. Winter-50%
c. Summer-100%

43. Dip slides are to be taken from each sump sample and results recorded and reported to VRTX after 48 hours
a. All results greater than 10,000 need to be photographed and submitted to VRTX

44. 2nd verification that all valves are in their normal operating position

45. Meet with customer to discuss.

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