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SECTION 2 Installation
2C.Plumbing
2C-1. By-Pass Plumbing
Install by-pass plumbing to DEL AOP-S as shown in Figure 2.
Observe and follow the correct flow directions on all
components.
The variable rate check valve will ensure adequate by-pass flow
through the injector, which will create suction to pull in the
ozone. It will also effectively limit the total by-pass flow to less
than 20 GPM for optimal germicidal UV effectiveness.
The recommended configuration is a dedicated pool return
from the DEL AOP-S. If a dedicated pool return is not possible,
a connection back to the main pool return may be used.
NOTE:
For pools equipped with a heater, the by-pass plumbing
tee to the Injector should be installed BEFORE the heater. Any
by-pass that connects back to the main pool return should
occur AFTER all other equipment to avoid collection of gas in
the system and possible failure of pool system components.
2C-2. Pressure Test
If a pressure test is required, it should be performed prior to
installing the check valve assembly tubing connections. Cap
the injector with the ¾” pipe cap provided for the pressure
test. Check inside the AOP-S and all plumbing fittings for leaks.
Repair any leaks before continuing installation.
2C-3. Check Valve Assembly
1. Install tube adapter on the injector.
2. Connect the check valve assembly tubing that is closest to the
check valve to the tube adapter on the injector.
3. Attach the other tubing end of the check valve assembly to the
ozone outlet barb on the AOP-S.
NOTE:
If the DEL AOP-S must be mounted below the water
line, the check valve assembly tubing must be run to a point
above the water line. This will prevent water from running back
to the AOP-S when the pool pump is not running, and provides
protection in the event of a failed check valve.
