Ozotech EOG Manual

OzotechEOG
Enhanced Oxidation Generator
Installation and Service Manual
M43-31506

Table of Contents
1.0 Limited Warranty 1
2.0 Service Returns 2
3.0 Caution 3
4.0 Installation and Operation 4
4.1 Operating Environment 4
4.2 Installation 5 - 6
4.3 Operation 7
5.0 Maintenance 9
5.1 Ozone Generator Maintenance 9 -11
5.2 Timer Service Reset Instructions 11-12
6.0 Spare/Replacement Parts 13
7.0 Specications 14
8.0 Component Replacement 14
9.0 Troubleshooting Guide 15
10.0 Illustrations 16
Figure 1. OzotechEOG internal layout 16
Rev B: 10-01-20

1.0 Limited Warranty
Ozotech, Inc., warrants the OzotechEOG series ozone generators to be
free from defects in parts and workmanship for (12) months from date of
invoice, under conditions of normal use. The corona discharge (CD) cell is
warrantied against catastrophic electrical failure for 3 years from date of
invoice. All other parts, repaired or replaced, will be warranted only for the
remainder of the original warranty period.
Ozotech, Incorporated will refund the purchase price, perform repairs or
replace equipment, at the option of Ozotech, Incorporated.
The warranty shall be null, void, and non-binding upon Ozotech,
Incorporated if Ozotech, Incorporated (or authorized service center)
determines the cause of malfunction or defect to be a result of:
1) Failure to perform proper maintenance as dened and recommended in
this manual.
2) Failure to adhere to and provide proper operating conditions, as
dened in this manual, including operation outside of temperature
range, operating in wet or dirty environment, operation outside of
manufacturer’s specications.
3) Adjustments made by user other than product output ow rate within
ranges specied by manufacturer.
Ozotech, Incorporated assumes no liability for damages incurred by
deliberate or incidental misuse of this product, or damages incurred in
transit.
1.

If the need arises to return your equipment for service, the following
procedure must be followed to ensure accurate and timely processing of
repairs.
✓Obtain model number/name of unit to be returned.
✓Contact Ozotech, Inc and request a Return Material Authorization
(RMA) form. Make sure to give the factory representative an accurate
and current shipping address.
✓Provide a description detailing the problem with the unit. Be as specic
as possible.
✓After receipt of RMA form, package unit for shipment. Enclose the RMA
form with the unit. Use the original packaging materials if possible. If
not, please package the product to ensure against shipping damage.
✓Clearly write the RMA number on the outside of the shipping package.
✓Verify that the address is correct and current.
✓Shipments that are not factory authorized will be refused.
It is recommended that you ship with a reputable and reliable shipping
company, and that the contents of the package are insured. Ozotech, Inc.
accepts no responsibility for damage or loss of equipment in transit.
ALL FREIGHT CHARGES INTO THE FACTORY MUST BE PREPAID. If the
repair is covered under warranty, the factory will pay return shipping
charges (surface rates only) to the address listed on the RMA, within the
Continental United States.
If the repair is not covered under warranty, the returning party is
responsible for payment of return shipping and handling charges, as well
as labor and equipment costs associated with the repair.
2.0 Service Returns
2.

3.0 Caution
3.
Read the following safety guidelines thoroughly before
attempting to operate or install your equipment.
As with all electrical devices, this equipment should never be
allowed to come in contact with water.
Only qualied personnel should be allowed to set up,
maintain and operate this equipment.
The equipment must be operated using a properly grounded
electrical circuit that is protected by either a fuse or circuit
breaker.
Do not use an extension cord to supply power to this
equipment.
* Ozotech, Inc., assumes no liability for damages or injuries
incurred by misuse of this product.

4.0 Installation and Operation
Your generator requires special operating conditions in order to
maintain performance and reliability. Your ozone generator is
designed to be operated under a negative pressure situation.
Warranty coverage of your equipment is contingent upon strict
compliance with the operating conditions specied in this
manual.
4.1 Operating Environment
External
It is most important to choose a cool, clean external operating
environment. Consideration of these factors should be a priority.
Mount your ozone generator in the best possible operating
environment that is available at the chosen site. If possible, mount
in an area that is free of airborne moisture particles.
Internal
Keep the inside of the generator chassis clean and dry. Dust
particles and condensation pose a challenge to the consistent
operation of all ozone generators. Make a note to inspect
the internal cleanliness of the equipment when scheduled
maintenance is performed. For further information, refer to
section 5.0.
4.

2. Disconnect power to the control valve. Remove the front cover
from valve backplate. Release the control board bracket
from backplate.
3. Route the grey control wire from the OzotechEOG into Clack®
valve housing through the hole in the backplate, and through the
strain relief channel above to keep wiring in place.
a. Leave enough wire length to connect to the signal relay
terminal block of the control circuit board. Make sure the
wire is ush in the channel for proper bracket
installation.
b. Replace the control board bracket into backplate until it
“snaps” into place.
4.2 Installation
1. Mount the OzotechEOG to the Clack® control valve. A #2 Philips
screwdriver will be required.
a. Install clamp ring into OzotechEOG backplate receiver.
b. Install port clip into OzotechEOG backplate receiver.
c. Loosen clamp screw, slide clamp over valve injector cap.
Rotate OzotechEOG counterclockwise to secure port
clip. Tighten clamp screw.
5.

4. Secure red wire into RLY 1 terminal, and black wire into +COM
terminal on Clack® control board.
5. Replace control valve front cover.
6. Plug the supplied wall transformer into a wall outlet. Plug the
male DC plug into the female DC jack located at the back of the
OzotechEOG.
7. Program ozone start and end schedule using control valve PCB.
4.2 Installation Continued
6.
a. Enter cycle programming mode
b. Set backwash to 14 minutes
c. Set draw time to 40 minutes
d. Turn o ll
e. Turn o rinse
f. Set relay to“on”
g. Set the relay on time to 15 minutes (one minute longer
than backwash)
h. Set the relay duration for 38 minutes (2 minutes less than
draw time)
i. Return to service
j. Press regeneration button to lock in timing

4.3 Operation
The OzotechEOG will automatically turn on and o by the Clack®
control PCB dened timing schedule. The OzotechEOG control
board utilizes an on-board diagnostic LED light to convey real-time
performance status of the unit. The control board within the
OzotechEOG has several inputs and outputs. The following will
address functions of the diagnostic LED, control input, and auxiliary
outputs.
LED Diagnostic Functions:
Green Light Blinking Slowly: Standby mode; unit is powered,
pilot input is OFF.
Green Light Blinking Quickly: High voltage startup (up to 3 sec-
onds).
Green Light Solid: High voltage is ON & stable; CD cell producing
ozone.
Red Light Solid: Unstable operation; CD cell may need cleaning.
Green/Red Light Alternating Twice/Second: HV is ON, but
operating current is low. If persistent, CD cell may need cleaning.
Red Light Flashing: NO or NC contacts are shorted. Remove short
condition.
Orange Light: 1-year timer has expired; clean CD cell, then reset
timer by pressing red “alarm reset” button on PCB once.
7.

Control Input:
The OzotechEOG PCB is activated to produce ozone when a pilot
input signal is applied across“+” & “pilot” terminals.
Auxiliary Output Functions:
The NO/NC auxiliary outputs have a 3 second o-delay, after the
pilot signal is shut o. These outputs are capable of outputting a
maximum of 60mA @ 70°F and are intended to be used as a control
circuit only. Attach positive wire to NO or NC output terminal, and
negative wire to GND terminal to complete the desired circuit. See
gure 1, on page 14 for auxiliary output locations.
Fusing:
The control PCB is equipped with automatically resetting on-board
fuses. If these fuses trip, due to a short of the HV transformer,
excessive load on the auxiliary output(s), remove excessive load/
cause of short, and cycle main power on/o to reset. If the HV
transformer is shorted, the LED indicator will stay solid red until
condition is remedied. If either NO or NC output is active and
experiences excessive load, the LED indicator will quickly ash red
until condition is removed.
4.3 Operation Continued
8.

The OzotechEOG ozone generator is delivered factory tested,
calibrated, and adjusted for maximum eciency and long life.
Simple maintenance and appropriate operating conditions
are the only requirements to keep the unit functioning within
manufacturer’s specications.
Performing any other modications or adjustments to
internal components will cause the unit to function outside of
manufacturer’s specications and will cause damage to the unit
not covered under warranty terms.
5.1 Ozone Generator Maintenance
Frequency of Maintenance: Every 12 months, more frequently in
high humidity areas.
Perform the following CD cell cleaning procedure:
Note: A CD cell cleaning kit may be purchased from Ozotech, Inc.
Reference section 6.0 for more information.
5.0 Maintenance
9.

*CAUTION: UNPLUG POWER SUPPLY TO OzotechEOG BEFORE
PERFORMING SERVICE*
1. With the front cover removed, remove the CD cell from the
ozone generator:
a. Disconnect the red spade terminal connector from the
CD cell connection terminal.
b. Cut the CD cell retaining strap holding the cell into the
cell clips, and discard.
c. Disconnect the air inlet and ozone outlet hoses from
the CD cell barb ttings.
d. Pull the CD cell straight up from the retaining clips.
2. Flush the CD cell with warm water until the water comes out
entirely clean:
a. Connect a 3/16” I.D. piece of tubing to either of the CD
cell barb ttings.
b. Using a syringe or rubber bulb pump to work the warm
water through the CD cell, ushing until all nitric acid
or obstructions are removed, and the water runs clean.
(NOTE: Hot water can be used if nitric acid buildup is severe)
3. Ensure that the CD cell is completely dry, inside and out, before
re-installation:
a. Use dry, compressed air to blow through either CD
cell barbed tting until no moisture is ejected from the
opposite barbed tting.
5.1 Ozone Generator Maintenance Cont.
10.

5.1 Ozone Generator Maintenance Cont.
4. Reinstall clean, dry CD cell into OzotechEOG in reverse order,
making sure all air and electrical connections are secure.
Frequency of Maintenance: Every 12 months
Perform the following general maintenance and CD cell cleaning
procedure:
1. Disconnect OzotechEOG from power source.
2. Remove cover.
3. Inspect the inside of the generator for dust and moisture.
4. Thoroughly clean and dry the inside of the generator.
5. Replace top cover.
6. Replace any in-line and brine elbow check valves.
5.2 Maintenance Timer Service Reset Instructions:
Normally the EOG II controller board will signal cell maintenance is
due by changing the LED indicator light to an orange color, once
service has been performed then the timer will be reset simply by
pressing the “Alarm Reset” button.
However, if a technician services or replaces the cell prior to the
one-year service signal is displayed, a “forced reset” on the timer
should be performed.
11.

5.2 Timer Reset Instruction Cont...
Follow these instructions to do the reset:
1. Disconnect power from EOG II.
2. Press and hold reset button while repowering EOG II.
3. Pulsing orange LED will indicate timer rest function is active.* Press
reset button again to complete reset. LED will pulse green when
nished.
4. EOG is now ready to operate as normal.
Note: This feature only applies to EOGs made after May 2020
(See program rev code on side of transformer and or date code in
serial number).
*Note: To abort the timer reset once timer reset function is active
(pulsing orange), disconnect then reconnect power without pressing
any buttons.
12.

6.0 Spare/Replacement Parts
Part # Description
33218 Replacement CD cell, w/tubing
47035 Ozone resistant in-line check valve* (1)
40080-03 Wall transformer, 120/240VAC to
12VDC regulated (domestic customers only)
47044-1 CD cell maintenance kit
* Denotes recommended spare maintenance parts with initial
purchase. Followed by additional quantity recommended for
one year’s scheduled maintenance.
13

Input Power Requirements:
Operating Voltage: 12VDC via 120/240VAC 50/60Hz
switching power supply
Power Consumption: 600mA @ 12VDC (7.2 watts)
nominal
Size (L x W x H): 6.8” x 4.4” 5.4”
Shipping Weight: 2 lbs.
Ozone Output: 220 mg/hr.
Enclosure: ABS
8.0 Component Replacement
CD Cell Replacement
*CAUTION: UNPLUG POWER SUPPLY TO OzotechEOG BEFORE
PERFORMING SERVICE*
1. With the front cover removed, remove the CD cell from the
ozone generator:
a. Disconnect the red spadeterminal connector from the
CD cell connection terminal.
b. Cut the CD cell retaining strap holding the cell into the
cell clips, and discard.
c. Disconnect the air inlet and ozone outlet hoses from
the CD cell barb ttings.
d. Pull the CD cell straight up from the retaining clips.
2. Replace with new CD cell in reverse order, making sure all air
and electrical connections are secure.
7.0 Specications
14.

9.0 Troubleshooting Guide
15.
System Possible Cause Solution
Unit doesn’t
turn on
Unit is not connected to power
source, or is connected to
improper power source
Refer to input power
requirements on pg. 12, and
Figure 1 on pg. 14 for proper
electrical connections.
Electrical short circuit Visually inspect unit and check
for loose connections. Inspect
printed circuit board (PCB) for
burn marks. Inspect HV wire from
PCB to CD cell for disconnection
or burn marks. Repair any and
all problems prior to placing
unit back into service, or contact
factory for service.
Unit is connected to improper
power source
Refer to pg. 12 to ensure that
unit is plugged into proper
voltage outlet.
Unit turns on,
but no ozone
output
Frequency driver is defective Replace PCB board.
Frequency driver high voltage
lead not connected to ozone
cell
Connect red ag terminal to CD
cell spade connection.
Water has been allowed to
back up into the CD cell and
has caused a direct short
Dry CD cell using drying
procedure on pg. 10. Replace
CD cell.
Cell is plugged with build-up
of nitrous byproducts and
particulate matter. Usually
caused by the lack of proper
air preparation
Refer to section 5.1 on pg. 10 to
clean CD cell. Replace CD cell.

10.0 Illustrations
Figure 1: OzotechEOG internal layout
16.

Maintenance Notes

Ozotech, Inc. • 1015 South Main Street, Yreka, CA 96097 • Ph. 530.842.4189
ozotech.com