Del ozone Big Dipper EC-AG1U User manual

EC–AG1U, EC–AG2U
Installation & Operations Manual
4-2353-01 Rev.A

TABLE OF CONTENTS
SECTION 1 General Information
1A. Description ........................................................................................ 1
1B. Specifications.................................................................................... 1
1C. Warranty Summary ........................................................................... 1
SECTION 2 Installation
2A. Location............................................................................................. 1
2B. Wall Mounting ................................................................................... 2
2C. Electrical ........................................................................................... 2
2D. Plumbing........................................................................................... 2
SECTION 3 Operation
3A. General ............................................................................................. 3
3B. Initial System Start-Up ...................................................................... 5
3C. System Shut-Down ........................................................................... 5
SECTION 4 Maintenance & Service
4A. System Electromechanical Overview................................................ 5
4B. System Maintenance......................................................................... 5
4C. Ozone Generator Servicing .............................................................. 6
4D. Troubleshooting ................................................................................ 8
Warranty ................................................................................................ 10

IMPORTANT SAFETY INSTRUCTIONS
READ AND FOLLOW ALL INSTRUCTIONS.
• Read this manual completely before attempting installation.
• All permanent electrical connections should be made by a qualified
electrician.
• Connect to a grounding type receptacle only. If the ozone generator
electrical connection is to be attached to the pool controls, be sure
the pool controls are protected by a Ground Fault Circuit Interrupter
(G.F.C.I.). If the ozone generator is connected to an independent
electrical supply, then a G.F.C.I. must be installed between the ozone
generator and the electrical supply.
• Do not bury cord.
• Warning – To reduce the risk of electrical shock, replace damaged cord
immediately.
• Install at least 5 feet (1.5 meters) from wall of pool. Install ozone
generator no less than one (1) foot above maximum water level to
prevent water from contacting electrical equipment. Install in
accordance with the installation instructions.
• Follow all applicable electrical codes.
• Electric shock hazard. Be sure to turn power OFF and disconnect from
power source before any service work is performed. Failure to do so
could result in serious injury or death.
• The ozone generator must be installed in an outdoor location,
or indoors in a forced air ventilated room, and installed so that the
orientation is exactly as shown in Figure 1.
• Mount the ozone generator so that it is inaccessible to anyone in the
pool. Never attempt any servicing while unit is wet.
• Plastic ozone supply tubing is supplied with the ozone generator.
Never replace this tubing with metal tubing.
• Warning – Short-term inhalation of high concentrations of ozone and
long term inhalation of low concentrations of ozone can cause serious
harmful physiological effects. DO NOT inhale ozone gas produced by
this device.
• For your safety, do not store or use gasoline, chemicals or other
flammable liquids or vapors near this or any other appliance.
SAVE THESE INSTRUCTIONS!
EC–AG1U, EC–AG2U

1
EC–AG Installation & Operations Manual
SECTION 1 General Information
1A. Description
The EC–AG Ozone Generators described in this manual
are designed to provide the benefits of ozonated water in an
environmentally safe and effective manner. The high quality,
specially engineered components ensure efficient ozone output
and reliable performance. As a result of proper use of the Ozone
Generators, unpleasant effects of traditional chemical use are
virtually eliminated. The Ozone Generators are safe and harmless
to your equipment when installed properly.
1B. Specifications
Flow rate: 15 scfh (nominal)
Flow rate and ozone output will vary with installation.
Power Requirements:
• EC–AG1U: 120-240V, 50-60 Hz, 1Ø, 0.10 Amp Max
• EC–AG2U: 120-240V, 50-60 Hz, 1Ø, 0.05 Amp Max
Shipping Weight:
• EC–AG1U: Approx. 1.8 pounds / 0.8 kg
• EC–AG2U: Approx. 1.6 pounds / 0.7 kg
Location Requirements:
• Mounting: Wall mount in a clean, protected area.
• Ambient Temp: 30°F - 120°F (0°C - 50°C)
1C. Warranty Summary
Limited Warranty: 1 year warranty on entire generator.
See Warranty section for limitations and details on obtaining
warranty service.
SECTION 2 Installation
2A. Location
The Ozone Generator units are designed for wall mounting. See
Figure 1. Mount in a clean, protected area, either indoors or
outdoors (preferably out of direct sunlight). Locate out of reach

2
EC–AG Installation & Operations Manual
of sprinklers or drainage spouts. Allow sufficient access for
maintenance and all tubing and electrical wires. Ozone Generator
should be installed at least (not less than) one foot above the
maximum water level. See Section 2D-2, Ozone Gas Line, for
plumbing instructions based on mounting location.
2B. Wall Mounting
a. Refer to Figure 1 to mark the locations for the two mounting
screws.
b. Install screws (or other hardware appropriate for mounting
surface) through the two mounting holes built in to the base of
the EC–AG ozone system.
2C. Electrical
2C-1. Main Power
Connect the Ozone Generator to the pool timing clock so that the
Ozone Generator operates simultaneously with the pool pump. The
circuit must be protected by a ground-fault circuit interrupter (GFCI)
installed in accordance to electrical code. Refer to the IMPORTANT
SAFETY INSTRUCTIONS at the beginning of this manual for
important wiring information. If the EC–AG power cord comes with
a built-in receptacle and the pump is equipped with a standard plug
(NEMA 5-15P), the pump may be plugged in on top of the EC–AG
cord (pump current must not exceed 15A). Plug must be protected
from moisture.
2D. Plumbing
Ozone gas is introduced to the pool circulation line using a venturi
Injector. Suction developed by the venturi allows the Ozone
Figure 1: Wall Mount
8.0"

3
EC–AG Installation & Operations Manual
Generator to operate safely under vacuum. Note: The Injector
needs to be installed after all other equipment or possible failure
may occur.
2D-1. Plumbing the Above Ground Injector Assembly
Note: Figure 2 and the instructions below describe Injector
installation immediately after the Filter. For pools equipped with a
heater, the Injector must be installed AFTER the heater. The fittings
provided may be used to connect the Injector directly to the wall of
the pool or the outlet of the heater.
a. Wrap Teflon tape on all male pipe threads.
b. Disconnect the pool’s return hose from the Filter. Keep the hose
elevated to aviod draining the pool.
c. Use either the straight or elbow fittings provided to connect the
Injector to the discharge port of the Filter. Ensure that the flow
arrow on the Injector is pointed in the direction of water flow, and
that the Ozone Port is accessible.
d. Reconnect the pool’s return hose to the outlet of the injector.
e. Attach Hose Barb Fitting to the Ozone Port on the Injector.
2D-2. Ozone Gas Line
Connect the end of the Ozone Supply Tubing that is closest to the
Check Valve to the Hose Barb Fitting on the Injector. Secure with a
supplied hose clamp. If the Ozone Generator is mounted above the
water line attach the other end of the Ozone Supply Tubing to the
ozone out fitting on the EC–AG and secure with the supplied hose
clamps. If the Ozone Generator is mounted below the water
line, the Ozone Supply Tubing must be run to a point above the
water line. Simply coil the tubing into a complete circle about 6˝
diameter and fasten it above the water line. This will act as a water
trap to prevent water from running back to the Ozone Generator.
SECTION 3 Operation
3A. General
To achieve optimal performance from the Ozone Generator, the pool
must be as clean as possible to start with.
a. Backwash or clean filters one day before starting the Ozone
Generator.
b. Superchlorinate pool water using a chlorine based shock
treatment.

4
EC–AG Installation & Operations Manual
Figure 2: Typical Injector Installation (Pool without heater)
EC–AG
Ozone Generator Ozone
Supply Tubing
Check Valve
Hose Barb Fitting Injector
Filter
Return to Pool
From Pool
Pool Pump

5
EC–AG Installation & Operations Manual
c. Test pool chemistry and adjust pH between 7.4 and 7.6. Adjust
total alkalinity between 80 and 120 ppm.
d. Run pool filtration continuously for 24 hours prior to starting
Ozone Generator.
3B. Initial System Start-Up
a. Turn on pool circulation system.
b. Check for leaks.
c. Verify that ozone is being pulled into the Injector by checking for
bubbles at the return.
If you experience complications, see TROUBLESHOOTING Section
4D, call [phone] or visit www.delozone.com for assistance.
3C. System Shut-Down
If the system is to be shut down for an extended period disconnect
the Ozone Generator power cord and disconnect the Ozone Supply
Tubing from the Ozone Generator.
SECTION 4 Maintenance and Service
4A. System Electromechanical Overview
4A-1. Internal Components:
Ozone Module: Each Ozone Module consists of a Power Supply
connected by two high voltage wires to an Ozone Cell.
4B. System Maintenance
4B-1. Ordering Information
To locate a dealer nearest you call 1.800.676.1335 ext. 249 or visit
our web site www.delozone.com
Be prepared with the following information:
• Name • Address • Model # • Date Purchased
4B-2. Standard Replacement Parts List
a. EC–AG1U Ozone Module 9-1292-01
b. EC–AG2U Ozone Module Assembly 9-1293-01
c. Check Valve and Ozone Supply Tubing Assembly 9-0777-01
Item (c.) must be replaced once a year.

6
EC–AG Installation & Operations Manual
4B-3. Ozone Module performance will degrade over time. Replace
the Ozone Module after 15,000 hours of operation. (15,000 hours
equals approximately 5 years for a pool system that operates 8
hours/day, every day.) See Section 4C for module replacement
instructions.
4B-4. While operating, check regularly to see if bubbles are
entering the pool. (If you have installed an MDV, check the MDV for
bubbles.)
4B-5. Regularly inspect Ozone Supply Tubing for cracks or wear.
Also check to make sure no water is present between the Check
Valve and the Ozone Generator. This indicates Check Valve failure
and the Check Valve and Ozone Supply Tubing Assembly should be
replaced. (replacement part number 9-0777-01) immediately.**
**WARNING: Trace amounts of nitric acid may be present in
the check valve or tubing and could be mildly corrosive. If
condensation is present, shut off Ozone Generator and allow
the moisture to be drawn out or dried up prior to servicing.
4C. Ozone Generator Servicing
4C-1. The Ozone Generator must be removed from the wall before
servicing. To remove the Ozone Generator:
a. Disconnect service to Ozone Generator.
b. Disconnect the power cord from the pool timer circuit.
c. Disconnect the Ozone Supply Tubing from the bottom of the
Ozone Generator.
d. Remove the two wall mounting screws.
4C-2. Opening the Ozone Generator
The Ozone Generator enclosure consists of two plastic parts that
clip together. They are held in place by one screw. To open the
enclosure:
a. Remove the Cover Screw on the back side of the base of the
EC–AG (Figure 3).