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Section 4 Maintenance & Service
3E. WaterChemistry
Regular chlorine testing should be performed as normal. Ozone will
be eliminating the majority of contaminants. Therefore, only a small
amount of chemicals will need to be added – just enough to maintain
a residual level of 0.5 - 1.0 ppm free chlorine. Ozone is pH neutral and
will not cause pH or total alkalinity uctuations.
4A.SystemElectromechanicalOverview
CAUTION
Disconnect power before performing service. Refer to
the IMPORTANT SAFETY INSTRUCTIONS displayed in the front of
this manual.
Refer to Figures 4, 5, and 6.
4A-1.OzoneModule
The DEL AOP 50 is constructed with 6 Corona Discharge Ozone
Modules. Each Ozone Module has a green light to indicate that the
Ozone Power Supply is operating properly (Refer to Figure 5 for a
more detailed view).
4A-2.UltravioletLamps
There are two lamps in the UV Reactor of the DEL AOP 50. If the UV
Lamp Access Panel is removed while the unit is running, a slight glow
can be seen near the top of the lamps (Refer to Figure 6 for a more
detailed view).
4A-3.InjectorManifold
Water owing through the Injector Manifold generates the vacuum
that draws ozone into the water. The DELCheck™ spring loaded valve
automatically adjusts for various water ow rates to keep the DEL AOP
50 operating over a wide range of conditions.
4A-4.OzoneGasLine
Gas from the Ozone Modules is drawn through the Ozone Gas Line
by the Injector and into the water. The Ozone Check Valve in this line
prevents water from migrating back to the Ozone Modules when the
DEL AOP 50 is not running.