14
MAINTENANCE
CHAPTER 8
Maintenance of the HDO3 dissolved ozone system is critical to its longevity and operating efficiency. While all system
components are built to provide years of reliable service with minimum maintenance, following the procedures outlined
below is strongly recommended.
All maintenance procedures have been segmented by interval – daily, monthly, semi-annual and annual.
Daily procedures involve quick, visual checks for changes in normal operating conditions. Monthly,
semi-annual and annual procedures include cleaning and/or replacement of certain critical parts.
NOTES:
• The ozone system warranty states that it “does not
extend to any product or part which has been
damaged or rendered defective as a result of use of
parts not sold by ClearWater Tech, or service or
unit modification not authorized by ClearWater
Tech.” Please contact your ClearWater Tech dealer
if you have any questions about any maintenance
procedure
before
you begin that procedure.
• CAUTION:
Observe all common safety practices
and
review
the
“Safety
Warnings
and
Instructions” (Chapter 2) before attempting any
maintenance procedure that requires the use of
tools and/or shutting down the ozone system.
Daily Procedures
Control Panel:
•
Gauges and Meters: Observe normal operating parameters of all gauges and meters. Make sure they are within the
ranges shown on the “Operating Parameters” chart Figure 7-2. Adjust if necessary by following the steps outlined
in the “Start-Up & Calibration” section.
•
Dissolved Ozone Monitor/Controller: Observe the LCD display for normal function and accurate anticipated
dissolved ozone results. If an alarm signal is displayed see the troubleshooting section of the monitor/controller’s
I/O Manual.
Air Preparation System:
•
Air Flow: Check the SCFH flow meter mounted on the left-hand side of the oxygen concentrator (see Appendix-
Section A) to be sure the SCFH is within the range shown on the “Air Preparation Air Flow” line of the
“Operating Parameters” chart (see Figure 7-2). This meter is set at atmospheric pressure, see “Start-Up and
Calibration” steps 8-11.
Ozone Generator:
•
Indicating Lights –
HDO3-I Only:
Check the indicator lights on the ozone generator. See Figure 7-1A for Ozone
Generator LED Display function.
•
Indicating Lights –
HDO3-II and HDO3-III Only
: Check for illumination of the drive module "Ozone Output"
LED (for LED location, see Appendix-Section A). If the Ozone Output LED is not illuminated,
observe
the
complete operating function of the drive module LED’s. Before checking drive module LED function (see Figure
7-1B-C for LED location and function), remove the ozone generator cover and depress the cover safety switch
located on the ozone generator chassis (see Appendix-Section A).
CAUTION: Depressing overrides the cover
safety switch. The ozone generator will remain energized with the cover removed. Do not touch anything
inside the ozone generator while this switch is activated!
Please consult your ClearWater Tech dealer
before attempting this procedure.
•
Air Flow -
HDO3-III Only
: Check the CFH gauge on the front cover of the ozone generator. Make sure air flow
is within the range shown on the “Feed Gas Flow Rate” line of the “Operating Parameters” chart (see Figure 7-2).
Adjust if necessary by following the steps outlined in the “Start-Up & Calibration” section.
•
Pressure –
HDO3-III Only:
Check the pressure gauge located on the front cover ozone generator. Make sure
pressure is within the range shown on the “Ozone Generator Pressure” line of the “Operating Parameters” chart
(see Figure 7-2).
Vacuum Break:
•
Water Level: check the Vacuum Break water level. Fill as required by removing the threaded cap on top of the fill
port and fill water into the fill port up to the fill level, (see Appendix-Section A).
Ozone Injector:
•
Check Valve: Inspect the Teflon
ozone delivery line that runs between the vacuum break and the check valve
assembly on the suction port of the ozone injector. If water is observed in the delivery line near the check valve
assembly, the check valve has failed. See Troubleshooting Guide.