Del ozone AGW Series User manual
AGW–4015/4025/4045
Installation & Operations Manual
Skid-Mounted Ozone Sanitation System
AGW Series
3580 Sueldo Street, San Luis Obispo, CA 93401 | 800.676.1335 | o3info@delozone.com | www.delozone.com
4-0656 Rev.H
AGW–4015/4025/4045 Installation & Operations Manual
TABLE OF CONTENTS
SECTION 1 General Information
1A. Description ...............................................................1
1B. Specifications...........................................................1
SECTION 2 Installation
2A. Location....................................................................1
2B. Electrical...................................................................2
2C. Plumbing..................................................................2
SECTION 3 System Configurations/Installation
Diagrams
3A. Tank Charging System .............................................3
3B. Tank Cleaning System .............................................4
3C. Spray System...........................................................5
SECTION 4 Operation
4A. Control Panel Overview .......................................... 2
4B. Quick System Start-Up ........................................... 7
4C. Detailed System Start-Up ....................................... 7
4D. System Shut-Down/Freeze Protection.................... 7
4E. Standard Operating Procedures ............................. 7
SECTION 5 Maintenance & Service
5A. Preventative Maintenance Schedule ...................... 9
5B. Air Compressor Servicing........................................ 9
5C. Digital Flow Meter Servicing ................................... 9
5D. Troubleshooting ...................................................... 9
5E. Wiring Diagrams.................................................... 10
SECTION 6 Replacement Parts & Order Info
6A. Ordering Information ............................................. 15
6B. Standard Replacement Parts List ......................... 15
SECTION 7 General Ozone Use & Safety
Procedures
7A. Ozone Use & Technology Overview...................... 15
7B. General Safety Information ................................... 16
7C. Hazards................................................................. 16
7D. Precautions for Safe Handling & Use ................... 17
7E. Monitoring ............................................................. 17
7F. First Aid Procedures.............................................. 18
7G. MSDS ................................................................... 19
Warranty ................................................................... 20
Appendix
Appendix "A" (Daily Data Log)..................................... 21
Appendix "B" (Emergency Information) ....................... 23
Appendix "C" (Safety).................................................. 25
#128380 / #129381
AGW–4015/4025/4045 Installation & Operations Manual
IMPORTANT SAFETY INSTRUCTIONS
READ AND FOLLOW ALL INSTRUCTIONS.
Read this manual completely before operation of AGW–4015/4025/4045 Ozone Generator Equipment. The High Voltage
Transformers in this unit create 7,000 volts, with the outer jacket of the High Voltage lead reaching 3,000 volts.
- USE EXTREME CAUTION -
Operate the AGW–4015/4025/4045 on a near level surface with safe access to electrical power.
Connect to a G.F.C.I. type receptacle.
Follow all applicable electrical codes.
Do not bury cord.
WARNING: To reduce the risk of electrical shock, replace damaged cord immediately.
ELECTRICAL SHOCK HAZARD: Turn OFF all power switches and disconnect power cord from power source receptacle
before performing any service work. Failure to do so could result in serious injury or death.
SAFETY CLAIMS
Performance safety testing was based on the Hazard Communication Standard as promulgated through the Occupational Safety
and Health Act of 1970 and documented in the Code of Federal Regulations, Title 29, Chapter XVII, Part 1910, Section 1910.1200.
The inherent low hazard due to the AGW–4015/4025/4045’s design and construction, coupled with the safety features, monitoring
data, and the precautionary directions provided in the owner’s manual are sufficient for The Toxicology Group, LLC, a division of NSF
International (Ann Arbor, MI), to provide a professional opinion that the AGW–4015/4025/4045 Mobile Recirculating Ozone Sanitation
System poses no safety concerns when operated under the prescribed conditions as set forth in the owner’s manual.
ANTIMICROBIAL CLAIMS
This device has been determined acceptable for use as an ozone generating device providing sanitization and disinfection of hard,
inanimate, pre-cleaned surfaces, in and around food processing areas (P1). A potable water rinse is not required following the use of
this device on previously cleaned hard surfaces.
NSF International Registration for this device is based, partially, upon documentation indicating that it meets all necessary requirements
including labeling, EPA Establishment Registration, and safety requirements set forth under Federal Insecticide, Fungicide, and
Rodenticide Act (FIFRA) of June 5, 1947, Section 2(q)(1) and Section 7.
Efficacy studies conducted according to AOAC Official Method 961.02; Germicidal Spray Products as Disinfectants Test and AOAC
Official Method 960.09*; Germicidal and Detergent Sanitizing Action of Disinfectants provided the following results:
Organism Applied Dose Actual Dose (at nozzle) Spray Duration Reduction
Trichophyton mentagrophytes
(ATCC 9533)
3.0 ppm 1.85-2.25 ppm 30 seconds 6 log (99.9999%)
Salmonella choleraesuis
(ATCC 6538)
3.0 ppm 1.85-2.25 ppm 3 minutes 6 log (99.9999%)
Staphylococcus aureus
(ATCC 6538)
3.0 ppm 1.85-2.25 ppm 10 minutes 6 log (99.9999%)
Pseudomonas aeruginosa (ATCC
15442)
3.0 ppm 1.85-2.25 ppm 5 minutes 6 log (99.9999%)
Campylobacter jejuni
(ATCC 15442)
3.0 ppm 1.85-2.25 ppm 3 minutes 4 log (99.99%)
Listeria monocytogenes
(ATCC 7644)
3.0 ppm 1.85-2.25 ppm 3 minutes 4 log (99.99%)
Aspergillus flavus
(ATCC 9296)
3.0 ppm 1.85-2.25 ppm 5 minutes 4 log (99.99%)
Brettanomyces bruxellensis
(ATCC 10560)
3.0 ppm 1.85-2.25 ppm 3 minutes 4 log (99.99%)
Escherichia coli*
(ATCC 11229)
3.0 ppm 2.1 ppm 30 seconds 5 log (99.9999%)
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AGW–4015/4025/4045 Installation & Operations Manual
Water Quality: Potable, mineral & chemical free
water
NOTE: Water passing through the AGW–4015
/4025/4045 cools the ozone generator module.
Ozone effectiveness, generator efficiency
and service life will be improved at water
temperatures of 60 - 80°F.
Overall Dimensions: 64”H x 32”W x 28”D
Shipping Weight w/Crate: Approx. 500 pounds
Dry Weight: Approx. 450 pounds
Ambient Temp.:
Operation: Ambient Temperature 40°F - 100°F
WARNING: Not to exceed 100°F or damage to
system may result!
SECTION 2 Installation
2A. Location
The AGW–4015/4025/4045 skid is designed to be
conveniently forklifted to a location close to your
process. This can be a level location indoors or
covered outdoors. Allow for access to electrical
power and required water connections.
SECTION 1 General Information
1A. Description
The AGW–4015/4025/4045 described in this
manual recirculates ozone-enriched water through
tanks sized from 50 gallons to 2,500 gallons. It is
designed to "charge" a given tank of water with
ozone for safe and effective clean in place (CIP)
and clean out of place (COP), direct contact on
food products, and general water sanitation/
disinfection.
1B. Specifications
4015 4025 4045
Ozone Output,
g/hr 15 25 45
Ozone Flow (max),
scfh 13 18 30
% Weight 034.2 4.2 4.2
Power Requirements:
230VAC, 60 Hz, 1Ø, 20A Service
•AGW–4015
•AGW–4025
•AGW–4045
480VAC, 60 Hz, 1Ø, 15A Service
•AGW–4015–480
•AGW–4025–480
•AGW–4045–480
230VAC, 50 Hz, 1Ø, 25A Service
•AGW–4015–50
•AGW–4025–50
•AGW–4045–50
Water Flow Rate: 35-40 GPM, factory set
NOTE: The purpose of the pump in the
AGW–4015/4025/4045 is to provide the proper
pressure and flow rate for the most efficient
injector operation. It is designed to circulate
cold water only. The inlet of the AGW–4015
/4025/4045 should never be connected directly
to a pressurized water source and the outlet
should never be throttled or restricted. Please
call DEL if further explanation is required.
Water Requirements:
Temperature: 40°F - 80°F
Pressure: 0 - 10 psi Figure 1: AGW–4015/4025/4045
Skid-Mounted Ozone Sanitation System
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AGW–4015/4025/4045 Installation & Operations Manual
2B. Electrical
Main Power Supply Circuit:
Refer to Section 1B Specifications, Power
Requirements and local electrical codes for
information on proper electrical connection. Unit
is supplied with flying leads for direct "hard wire"
connection to be wired in accordance with electrical
codes.
2C. Plumbing
Water Inlet Connection: 1.5” FPT
Water Outlet Connection: 2” FPT
SECTION 3 System Configuration /
Installation Diagrams
The following 3 pages include diagrams for:
3A. Tank Charging System - Page 3
3B. Tank Cleaning System - Page 4
3C. Spray System - Page 5
SECTION 4 Operation
4A. Control Panel Overview
4A-1. Indicator Lights
Green Lights1.
Main Power (Ozone Generator):a. indicates
that power is being supplied to the Ozone
Generator.
Ozone Power:b. indicates that power is being
supplied to the high voltage Corona
Discharge circuits and that ozone is being
produced (See Sections 4B and 4C).
Pump On:c. indicates that the pump is
running.
Red Lights (Ozone Generator)2.
Vacuum:a. indicates that vacuum is out of
range. The light will be lit for low vacuum
conditions.
High Coolant Temperature:b. indicates that
water temperature is over 110 °F. (Refer to
TROUBLESHOOTING Section.)
Water Back Flow Detected:c. indicates that
water back flow from the injector into the
generator has been detected. (Refer to
TROUBLESHOOTING Section.)
Flow Meter
Ozone Power Switch
Dissolved Ozone
Monitor/Controller
Main Power Switch
Pump On
Inlet Pressure Gauge
Main Power
Ozone Power
Vacuum
High Coolant Temperature
Back Pressure Gauge
Injector Vacuum Gauge
Water Backflow Detected
Figure 2: AGW–4015/4025/4045 Control Panel
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AGW–4015/4025/4045 Installation & Operations Manual
3A. Tank Charging System
4
AGW–4015/4025/4045 Installation & Operations Manual
3B. Tank Cleaning System
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AGW–4015/4025/4045 Installation & Operations Manual
3C. Spray System
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AGW–4015/4025/4045 Installation & Operations Manual
Water Pump (2.0 HP)
Heated Catalytic Ozone Destruct
Mixing Tank
Degas Valve
Venturi Injector
Flow / Back-Pressure
Adjustment Valve
Pump Drain Plug (1/2”)
Water Inlet (1.5" FPT)
Water Outlet (2” FPT)
AGW–4015/–4025/–4045 Components
AGW–4015/–4025/–4045 Water Connections
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AGW–4015/4025/4045 Installation & Operations Manual
4A-2. Other External Components
Main Power Switch:1. Activates water pump and
supplies power to ozone generator.
Ozone Power Switch:2. Activates ozone
generating equipment.
Injector Vacuum Gauge:3. Indicates Vacuum of
the ozone in the injector system.
Back-Pressure Gauge:4. Indicates back-
pressure in the main flow loop (after the injector).
Flow / Back-Pressue Adjustment Valve:5.
Controls total system water flow, back-pressure,
and vacuum level.
Inlet Pressure Gauge:6. Indicates inlet pressure
in the main flow loop (before the injector).
Dissolved Ozone Monitor/Controller:7.
Displays dissolved ozone level in water and can
be set for ozone generator to maintain desired
ozone level. (See Section 4E and ATI Dissolved
Ozone Monitor/Controller owner’s manual for
further information.)
4B. Quick System Start-Up
Presumes unit is tuned to its present application.
(Follow Detailed System Start-Up Section 4C).
Turn Main Power switch to ON. Pump On green1.
light will illuminate. Allow one minute for system
to stabilize.
Turn Ozone Power switch to ON.2.
Check System Vacuum Gauge. Adjust Flow/3.
Back-pressure adjustment valve until gauge
reads approximately -3 to -7 in. Hg. vacuum.
Ozone Power green light will illuminate upon
reaching approximately -5 in. Hg.
4C. Detailed System Start-Up
Read completely before starting system.
Check for proper electrical and water1.
connections.
Switch Main Power ON (Pump On green light2.
will illuminate), allow pump to run for one
minute as water level in mixing tower fills and
stabilizes.
If the mixing tower doesn’t fill with water then3.
the pump needs priming. Turn off the Pump
Power, DO NOT RUN PUMP DRY (pump seal
failure will result). Insure the water supply
hose is full of water and the water source has
sufficient flow capacity for the pump. Turn on
the Pump Power. Repeat until the mixing tower
has filled, stabilized and water is circulating.
Switch Ozone Power ON.4.
Check System Vacuum Gauge. Adjust Flow/5.
Back-pressure Adjustment valve until gauge
reads approximately -5 in.Hg. vacuum. The
back pressure gauge should read at or above
18 psi for AGW–4015/4025 and at or above 8
psi for the AGW–4045.
Ozone On green light will illuminate upon
reaching approximately -5 in. Hg. NOTE:
Applications with elevated head pressures
will raise inlet and back pressures. The
above values are minimum operating
pressures.
4D. System Shut-Down / Freeze Protection
Turn OFF Ozone Power switch.1.
Turn OFF Main Power switch.2.
Remove hoses (if applicable) and allow water3.
to drain from system (a small amount of water
will remain in the ozone degas chamber).
Freeze Protection: It is recommended that4.
the AGW–4015/4025/4045 be protected from
freezing temperatures. If this is not possible,
the pump must be drained by removing the 1/2"
drain plug located underneath the pump (See
page 8). WARNING: Pump damage will occur
if pump is not drained before unit is stored in
freezing temperatures or for extended periods
of time. A small heater may be used to prevent
remaining water in the system from freezing.
4E. Standard Operating Procedures
The following chart provides ozonation time
estimates to charge tanks ranging in size from
300 to 2,000 gallons using the AGW–4015/4025.
NOTE: Water temp. and oxidizer load will affect
ozone levels and max PPM.
Ozone Tank Charging Guidelines
Tank Size
(gallons)
Charge Time (mins) Ozone
Dose
(PPM)
AGW–4015 AGW–4025
300 15 10 1
300 30 20 2
300 45 30 3
400 60 40 3
500 75 50 3
600 90 60 3
700 105 70 3
800 135 90 3
900 150 100 3
1000 180 120 3
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AGW–4015/4025/4045 Installation & Operations Manual
1100 210 140 3
1200 240 160 3
1300 270 180 3
1400 300 200 3
1500 330 220 3
1600 360 240 3
1700 390 260 3
1800 420 280 3
1900 450 300 3
2000 480 320 3
Dissolved Ozone Monitor/Controller
A dissolved ozone monitor/controller may be used
to ensure that the water is completely charged
before starting the timing of the cycle, as well as
providing a continuous monitor for observation.
In addition, it is used to control the ozone system
so that the tank of water can be maintained
continuously and stays charged at the level
determined by the adjustable set-point; it will vary
the ozone system production as needed to maintain
the set point.
The dissolved ozone monitor leaves the DEL
Ozone facility programmed with a 2.0 ppm set
point. This setting may be adjusted to suit your
specific sanitation needs.
The AGW skid includes the dissolved ozone
sensor (probe) which must be prepared before use.
Refer to the included Ozone Monitor manual for
information on this procedure, calibration, adjusting
of set points, and general operation information.
Indigo Blue Ampules with Colorimeter (Hach
AccuVac Test Kit)
This method can be used to determine the amount
of ozone at the discharge of the CIP (at the end
of the cycle). It cannot be used to determine
the amount of ozone in the ozone charge tank
because the highest range of detectability is 1.5
PPM. Therefore, refer to the Ozone Tank Charging
Guidelines, charge the ozone charge tank for the
proper amount of time and then begin the CIP.
After 30 minutes, test the discharge water with the
Hach AccuVac Ampule. If there is 1.0 - 1.5 PPM
ozone in this discharge water, it can be safely
determined that the system is sanitized.
4E-1. CIP (Clean In Place)
Refer to the Ozone Tank Charging1.
Guidelines. Determine the amount of water
in the ozone charge tank. Operate the
AGW–4015/4025/4045 for the proper amount
of time based on the amount of water in the
ozone charge tank, and charge the water to
approximately 3 PPM. The time necessary to
accomplish this is dependent on the volume of
water in the tank. Once the water is charged
with 3 PPM ozone, CIP operation can begin.
Experience dictates that 15 - 30 minutes of
CIP operation with an applied dose of 3 PPM is
an acceptable amount of time to attain a zero
microbial count. A longer duration will not cause
any harm. Individual preferences vary, but 30
minutes is the recommended optimum.
General Tank Sanitation - See page 3, drawing2.
3B. Wash debris and rinse the tank with clean
water. Connect the AGW–4015/4025/4045
to the tank and recirculate the system while
spraying with any standard spray ball.
Approximate spray time is 15-30 minutes.
4E-2. Facility Washdown
Refer to the Ozone Tank Charging Guidelines.
Determine the amount of water in the ozone charge
tank. Operate the AGW–4015/4025/4045 for the
proper amount of time based on the amount of
water in the ozone charge tank, and charge the
water to approximately 2-3 PPM.
The time necessary to accomplish this is
dependent on the volume of water in a given tank.
Once the water is charged with 2-3 PPM ozone, a
spray rig can draw this ozone charged water from
the ozone charge tank.
CAUTION: Maximum pressure 22 psi - higher
pressure will result in excessive ozone off-gas!
The spray can be directed on floors, drains, walls,
wettable equipment, external or internal tanks,
clean rooms, etc. (If the ozone spray is being
applied in a very small, enclosed, poorly ventilated
area, it may be necessary to wear a standard
ventilator to avoid the inhalation of ozone gas.
Breathing exposure to greater than 0.1 PPM ozone
gas can irritate eyes and sensitive lung tissue.
Please see the Safety Section 7 for further details
and a Material Safety Data Sheet on ozone.)
Based on industry experience, the amount of
time necessary to attain sanitation depends on
the amount of debris found in the area to be
cleaned. Sweep or remove heavy surface dirt first
to expedite the ozone cleaning process. Time
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AGW–4015/4025/4045 Installation & Operations Manual
estimates for proper sanitation are difficult to predict
due to the variety of areas, surface materials and
contaminants. However, experience and studies
support that 30 sec to 2 minutes of spray time
is generally all that is necessary for complete
sanitation. DEL recommends that end-users utilize
their own sanitation efficacy testing protocol to
determine necessary spray time.
4E-3. Direct Contact - Spray Nozzle, Flume,
Cascade
Applications vary. Please contact DEL for advice/
consultation at 800-676-1335.
4E-4. General Water Sanitation/Disinfection
Applications vary. Please contact DEL for advice/
consultation at 800-676-1335.
SECTION 5 Maintenance & Service
5A. Preventative Maintenance Schedule
(also refer to Ozone Generator manual)
DAILY:
Check ozone generator for proper operation.1.
- Make sure no red indicator lights are lit.
MONTHLY:
Remove & clean ozone generator cabinet air1.
filter.
Perform general cleaning of cabinet exterior.2.
Using clean/dry compressed air, blow out the3.
interior of the ozone generator cabinet taking
special care around small components and
wiring.
Inspect and replace compressor or air filters as4.
required. (Replace no less than Quarterly)
EVERY 8,700 HOURS:
Inspect and replace compressor air filter1.
cartridge as required using DEL P/N 8-0061.
Rebuild compressor. See AIR COMPRESSOR2.
SERVICING Section 5B.
Replace circulation pump seal using DEL P/N3.
5-0987.
EVERY 18,000 HOURS:
(refer to Ozone Generator Manual):
Replace the CD ozone cells using DEL P/N1.
9-0927 (two required for AGW–4015, four
required for AGW–4025, six required for the
AGW–4045).
5B. Air Compressor Servicing
Air compressor requires a rebuild after one (1) year
or after every 8760 hours, which ever is reached
first.
Purchase Compressor Rebuild Kit using DEL1.
P/N 2-1025. See Section 6B for ordering
information.
Follow instructions in Compressor Rebuild Kit2.
to rebuild compressor.
5C. Digital Flow Meter Servicing (if
applicable)
The digital flow meter batteries should be replaced
every 12 months. Two AAA batteries are required.
Remove the flow meter by loosening the union1.
nut.
To replace the batteries, open the rear panel by2.
removing the two Phillips screws. Be sure the
foam insert is in place before closing the rear
panel.
Replace the flow meter and tighten the union3.
nut.
5D. Troubleshooting
(also refer to Ozone Generator manual)
Knowledge of electrical applications is required
for trouble shooting. Contact a certified electrician
if you are unsure of your ability to service the
equipment. If any condition persists, call 800-676-
1335 or for international call 805-541-1601 for
technical assistance.
Symptom: “PUMP ON” green indicator light out
when MAIN POWER switch is in the “ON” position.
No power to the AGW–4015/4025/4045 from1.
the power supply.
Check the circuit breaker at the facilitya.
power distribution box.
Check for loose connections or wiringb.
breaks from the power distribution box to
the AGW–4015/4025/4045.
Symptom: “OZONE POWER” green indicator light
out when OZONE POWER switch is in the “ON”
position.
Check cable & connectors. Reconnect if in1.
good condition.
Dissolved Ozone Monitor/Controller may have2.
shut-down the ozone generator when the
dissolved ozone level reached set point.
Wait for dissolved ozone to come downa.
below set point. Generator will restart when
dissolved ozone is below set point.
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AGW–4015/4025/4045 Installation & Operations Manual
Abnormal operating conditions exist.3.
Check red fault lights. Refer toa.
corresponding symptom and corrective
action.
Cabinet door ajar.4.
Close and latch door.a.
Symptom: “VACUUM” red indicator light is on
indicating out of range vacuum is being supplied.
Injector not supplying adequate vacuum.1.
Check pump and ensure water is flowinga.
through injector.
Check vacuum gauge & adjustment valve.b.
Adjust if necessary to obtain proper reading
on vacuum gauge (-5 in. Hg).
Injector supplying too much vacuum.2.
Check vacuum gauge & adjustment valve.a.
Adjust to proper pressure to obtain correct
vacuum (approx.-5 in. Hg).
Check system back pressure gauge tob.
insure back pressure is at or above 18 psi
for AGW–4015/4025 and 8 psi for AGW–
4045.
Another abnormal condition exists causing the3.
ozone output solenoid to be closed.
Check red fault lights. Refer toa.
corresponding symptom and corrective
action.
Check hose connections.b.
Solenoid valve may be stuck in closedc.
position. Free plunger and return system to
normal operation.
Symptom: “HIGH COOLANT TEMP” red indicator
light is on indicating ozone generator temperature
is over 110°F.
Coolant water flow has been interrupted.1.
Check all tubing connections insuring tighta.
leak-free connections
Trace tubing and look for flow blockage.b.
Re-establish proper coolant water flow.c.
System is left in self-recirculation mode too2.
long.
Symptom: “WATER BACKFLOW DET.” Red
indicator light is on indicating possible water in
ozone line.
Water has flowed back from injector to the1.
ozone generator module.
Re-establish proper water flow througha.
injector and correct vacuum.
Drain Back Flow Preventer by first routingb.
drain tubing out of the cabinet and opening
¼" stainless steel ball valve.
After water has completely drained, closec.
valve, secure cabinet door and restart
system.
Symptom: CD Module is not operating. Ozone
output has dropped.
No power to the generator module from the1.
power supply.
Check high voltage (HV) cables for breaksa.
or loose connections, replace if required.
Check for power at input terminals of theb.
HV power supplies.*
Check ozone power relay for loosec.
connections or faulty operation.
*CAUTION: HIGH VOLTAGE (7,000 V)
Symptom: No oxygen flow through the ozone
generator.
Air compressor is not operating properly.1.
Listen for air compressor operation.a.
Check all tubing connections from the airb.
compressor through the system for leaks.
Repair as required.
Symptom: Low dissolved O3level. System is
operational but measured O3level in water is lower
than it should be.
See Previous Symptom.1.
Ozone is not dissolving efficiently into water.2.
Check back pressure gauge - gauge shoulda.
read at or above 18 psi for AGW–4015/4025
and 8 psi for AGW–4045.
If using optional flow meter, check waterb.
flow rate through it. Adjust flow according to
directions in Section 5C.
5E. Wiring Diagrams - Pages 11-14
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AGW–4015/4025/4045 Installation & Operations Manual
60 Hz Electrical Diagram
12
AGW–4015/4025/4045 Installation & Operations Manual
60 Hz Electrical Diagram (cont.)
13
AGW–4015/4025/4045 Installation & Operations Manual
50 Hz Electrical Diagram
14
AGW–4015/4025/4045 Installation & Operations Manual
50 Hz Electrical Diagram (cont.)
15
AGW–4015/4025/4045 Installation & Operations Manual
SECTION 6 Replacement Parts &
Order Information
6A. Ordering information
For replacement parts call DEL at 1-800-676-1335
or for international call 805-541-1601.
Be prepared with the following information:
· Customer Name
· Customer Address
· DEL Model Number
· DEL Serial Number
· Date Purchased
· Proof of Purchase
6B. Standard replacement parts list:
CD Ozone Cell1. ......................................9-0927
AGW–4015 - two cells requireda.
AGW–4025 - four cells requiredb.
AGW–4045 - six cells requiredc.
Compressor rebuild kit2. ..........................2-1025
AGW–4015/4025 - one kit requireda.
AGW–4045 - two kits requiredb.
Cabinet Air Filter Cartridge3. ....................7-0615
Compressor Air Filter Cartridge4. .............8-0061
Ozone Tubing, Teflon5. ............................7-0126
Power Cable, 25 Ft (230V only)6. ............5-0898
Pump Seal7. .............................................5-0987
Check Valve8. ..........................................8-0330
SECTION 7 Ozone Overview &
Safety Procedures
7A. Ozone Use & Technology Overview
7A-1. Relative Strength of Ozone
The following compares the strengths (electron
oxidation potential) of several common oxidizing
reagents:
Oxidizing Reagent EOP vs. Cl2
Elemental Fluorine .............................2.25
Hydroxyl Radical ................................2.05
Ozone.................................................1.52
Hydrogen Peroxide ............................1.30
Hypochlorite .......................................1.10
Chlorine..............................................1.00
Chlorine Dioxide.................................0.93
Bromine..............................................0.57
The following compares the CT values for water of
ozone versus forms of chlorine:
Microorganism
Disinfectant
Ozone
(pH 6 - 7)
Preformed
Chloramine
(pH 8 - 9)
Chlorine
Dioxide
(pH 6 - 7)
Free
Chlorine
(pH 6 - 7)
E. coli 0.02 95-180 0.4-0.75 0.034-0.05
Polio 1 0.1-0.2 770-3740 0.2-6.7 1.1-2.5
Rotavirus 0.006-0.06 3810-6480 0.2-2.1 0.01-0.05
G. Lamblia cysts 0.5-0.6 -- -- 47-150
G. muris cysts 1.8-2.0 1400 7.2-18.5 30-630
7A-2. Materials Selection
Materials Aqueous Ozone
0-3 ppm Freshwater
Metals:
Copper
Brass
316L Stainless Steel
5
5
5555
Plastics:
ECTFE (Halar)
PTFE (Teflon)
PVC (rigid)
PVC (flexible)
PVDF (Kynar)
5555
5555
555
555
5555
Elastomers:
FPM (Viton)
555
(gasket)
LEGEND: 5= Not Recommended 55 = Fair 555 = Good 5555 = Very Good
7A-3. Micro-Flocculation and Oxidation
Ozone oxidizes the following metals (know as
micro-flocculation), enabling their removal via
filtration:
•Iron
•Copper
•Manganese
•Zinc
•Arsenic
Ozone neutralizes "nuisance" compounds - most
commonly, hydrogen sulfide.
7A-4. Factors Affecting Sanitation
The following factors will affect the ability of ozone
to effectively act as a sanitizer:
•Typeandlevelofcontaminant
•Physical/chemicalparametersoftheenvirons
•Exposuretime
•Temperature
•Concentration
•WaterchemistryandpH
•Cleanliness
•Microbialattachment
16
AGW–4015/4025/4045 Installation & Operations Manual
7B. General Safety Information
7B-1. Ozone Properties
•Colorlesstobluegas(greaterthan-169°F)
•Characteristicodoroftenassociatedwith
electrical sparks or lightning in concentrations of
less than 2 ppm
•Severeirritantabove1-2ppm
•Generallyexistsasagas
•Highlychemicallyreactive
•Non-flammable,non-carcinogenic
•Hazardouspolymerizationcanoccur
• Spontaneouslydecomposestooxygengas
7B-2. Ozone Uses
•Airandwaterdisinfection
•Surfacesanitation
•Watertreatmentplants
•Bottledwater,irrigation,communitywater
supplies, swimming pools/spas, etc.
•Aquariums/lifesupport
•Agriculturalwashwater
• Wastewatertreatment
•Moldandbacteriacontrolincoldstorage
7B-3. AGW–4015/4025/4045 Safety Features
The AGW–4015/4025/4045 produce ozone which
is automatically and immediately injected into the
water flow. Any ozone which does not dissolve into
the water is separated off in the degas chamber
and eliminated in the heated catalytic ozone
destruct. The design of this self-contained system
eliminates the release of gaseous ozone from
the unit. In addition to ozone safety, the following
general safety features are built-in to the AGW–
4015/4025/4045:
•OzoneGeneratordoorsafetyinterlockswitch-
disables high voltage power supply when open or
improperly latched
•CircuitBreaker,Fuse
•VacuumSwitch-stopsoperationintheeventof
low water flow
•Ozonecellhightemperatureindicator
•Interlockedsensorsandregulatingdevices
•Startup/shutdownsequencesandfaultprotection
•Multistagewaterpumptocontrolflowrate
•Ozoneissuppliedundernegativepressure
(induction - i.e. a leak will draw air into the
system).
Slight off-gassing of ozone can occur from the
water that is produced by the AGW–4015
/4025/4045 (the physical properties of ozone
make this unavoidable). Laboratory and field
testing in varying environments indicate that ozone
off-gas levels from the water produced by the
AGW–4015/4025/4045 do not exceed 0.1 PPM (the
permissible exposure level (PEL) or time weighted
concentration for gaseous ozone to which workers
may be exposed averaged over 8 hours, 5 days
a week (OSHA)). Gaseous ozone concentrations
above 0.02 PPM are detectable by humans.
Inasmuch, Sections 7C through 7H of this manual
discuss relative issues regarding safety and
monitoring of gaseous ozone.
7C. Hazards
7C-1. Health Hazards - Detection Levels
Gaseous ozone can be detected in air by its
distinctive odor at concentrations of about 0.02
ppm. Although each nose varies, olfactory fatigue
occurs quickly. Initial small exposure may reduce
cell sensitivity and/or increase mucous thickness
producing a resistance to low gaseous ozone
levels. As a result, DO NOT RELY ON ODOR AS A
WARNING OF HIGH OZONE CONCENTRATIONS.
The permissible exposure level (PEL) or time
weighted concentration for gaseous ozone to which
workers may be exposed is 0.1 ppm averaged
over 8 hours, 5 days a week (OSHA). The short
term exposure limit is 0.3 ppm averaged over 15
minutes. The concentration of 5 ppm ozone in air is
generally accepted as Immediately Dangerous to
Life or Health (IDLH).
7C-2. Health Hazards - Effects on Humans
Gaseous ozone acts as a primary irritant, affecting
mainly the eyes, upper respiratory tract and the
lungs. Inhalation produces various degrees of
respiratory effects from irritation to pulmonary
edema (fluid in lungs). Short exposure to 1-2
ppm concentrations causes headache as well as
irritation to the respiratory system but symptoms
subside when exposure ends. High concentrations
of ozone produce severe irritation to the eyes
and respiratory system. Exposure above the
ACGIH/OSHA limits may produce nausea, chest
pain, coughing, fatigue, reduced visual acuity
and pulmonary edema. Symptoms of edema
from excessive exposure can be delayed one or
more hours. There is no threshold limit and so no
exposure (regardless of how small) is theoretically
without effect from ozone’s strong oxidative ability.
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