ClearWater CD15/O2, Installation & Maintenance Manual

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18
INITIAL VENTURI INJECTOR MANIFOLD CALIBRATION
ClearWater Tech air preparation and ozone generation systems Models M-15/O2, P-20/O2, CD-15/02 and CD-20/02
are a vacuum type and will require adjustment of the air flow through the system. An SCFH (Standard Cubic Feet per
Hour) gauge is used to accurately measure the amount of air flowing through the ozone delivery line on single speed
injectors (in other words, the amount of ozone being drawn into the water). Follow the directions and illustration below
to optimize flow through the injector:
1.
Install the tube fitting into the upper hole on the back side of the SCFH gauge.
2. With the pump running, disconnect the tubing from the ozone outlet of the ozone generator and connect the
tubing to the fitting on the gauge.
3. While holding the gauge vertically, read the amount indicated on the gauge. Note: Do not obstruct the bottom
air hole on the gauge. The optimum flow is 10 to 15 SCFH for the M-15/O2 and the CD-15/02; and 15 to 20
SCFH for the P-20/O2 and CD-20/02. If the flow exceeds 35 SCFH, install an ozone resistant metering valve
to restrict the flow to the correct amount.
4. The injector has a ball valve to adjust the amount of flow. To adjust the SCFH, simply install the gauge as above
and open the ball valve completely. With the pump running, begin closing the ball valve until the optimum flow is
achieved on the SCFH gauge. If possible, remove the ball valve handle to prevent tampering with the setting.
Injector Manifold
with Check Valve
Do Not Block
Lower Hole
Attach Ozone Line
Keep
Gauge
Vertical
5. Prepare for shipment and ship according to the instructions provided by your ClearWater Tech distributor.
Annual maintenance agreements for your ClearWater Tech system are available from your ClearWater Tech dis-
tributor.