40
Servicing the Mazzei Ozone Injector
The Mazzei pump introduces the air and ozone mixture into the water stream on flow
and on demand. It also prevents the water from discharging into the air lines when the
system is not operating.
The AOWT-7 uses a #684 Mazzei. Several factors may cause the Mazzei to fail:
Debris stuck in ball check valve, blocking it from setting properly into place.
Wear on the seals for the ball valve.
Physical damage to the ball or spring changing the fit in the seal.
Debris stuck in inlet orifice of Mazzei preventing water from flowing through.
This flow is required to create a vacuum. A loss of vacuum causes ozone
generator overheating. Low pressure can allow water to seep past check-
valve.
Mazzei Failure
Water will leak back up the air lines when the system is not operational and kept under
pressure (system is not running but water lines are still under regular pressure).
There is the potential for water to damage electronics and components in ozone
production. The water column allows for Mazzei failure and redirects the released
water away from generator box to discharge to an atmospheric drain.
NOTES:
Mazzei failures are uncommon and can be fixed quickly.
Refer to Mazzei troubleshooting and solutions in
System Manual.
Keep system under pressure.
Troubleshooting the Mazzei
1. Verify water level indicator on water column lowers upon system activation.
a. If there is no drop in water level (suction) proceed to step 2.
b. If there is a drop in water level then the Mazzei is not fully plugged.
2. If no suction is detected, turn system and ozone generators OFF. Disconnect the
hose attached to the Mazzei.
3. Start the system with the ozone generators off. Place your finger over the open port
on the T connection. If it is working you will feel the suction on your finger.
NOTE: If no suction is detected the problem may be a plugged inlet port. ONLY
PERFORM MAZZEI REPLACEMENT MAINTENANCE IF AUTHORIZED BY
ACLARUS
Summary of Contents for AOWT-7
Page 9: ...9 System Components...
Page 10: ...10 NOTE System components and tank may not be exactly as shown...
Page 47: ...47 Appendix Component Specification Sheets Pumps Specifications...
Page 48: ...48...
Page 49: ...49...
Page 50: ...50 Flow Switch Specifications...
Page 51: ...51...
Page 52: ...52 Mazzei Specifications...
Page 53: ...53 Gas Off 1 Specifications...