Electrical requirements :
All ozonators are supplied with power cords and are hooked to the equipment control box via a supplied cord end, or they are hard wired directly into the control box. Look on the side of your control box where everything plugs in, if you see an empty slot that will except a (3) prong plug then most likely this is the receptacle for the ozonator. Please look at the selection of cord end to select the proper pattern.
Plumbing requirements :
If your spa is 'ozone ready' then one of two things are apparent:
- You have located and identified a clear tube (approximately 3/8") that is just hanging in the equipment area with either a knot or plug at the end that is not attached to anything.
- You have located and identified a section of 3/4" ID flex hose spliced into a rigid water line, which leads to a special ozone jet in the spa shell.
Option 1
If this is the case then the first thing you will want to do is remove the plug/knot at the end of the tube, then start the pump on the low speed filter/heat cycle. Once this is done, you'll want take the end of the tube and check for a slight "suction" or "draw". This can be achieved a couple of ways; you can either put it on your tongue and check for suction, or you can find something very small and light to see if it gets sucked into the tube. If you are getting the suction mentioned above, then the next step is to identify the cord end that matches the receptacle on your control box, then purchase the ozonator that matches the cord end you chose. Spa Parts Ltd. recommends using a DELZONE unit. If the tube is not drawing a suction, then please follow the instructions below. (In the yellow box)

Once you receive the ozonator, find a suitable mounting location that will keep it up and out of any water.
The next step is VERY IMPORTANT, failure to do so will jeopardize the new ozonator and void the warranty. You will want to create a "loop" (Hartford Loop) in the tubing and install it as high as possible under the spa to keep water from backing up into the ozonator as shown below.
Water should never be allowed to enter the ozonator! If the existing tubing in your spa is not long enough to create this loop you can purchase a coupling, from any home center to join your tubing to the tubing that comes with ozonator.
An in-line check valve is also included in every ozone kit and should be used.
Please install it per the instructions, making sure that it is installed in a manner the will allow the ozone to be "drawn" through the tube into the spa.
You can now plug the cord into it's power source, depending on the manufacturer of the ozonator you should have an indication of weather it is working or not by either a site glass or a "blue glow" coming from the manifold. It is best to check this at night. Now turn on the filter/heater cycle and take a look in the spa, there should be one jet that is spitting small bubbles. It is these bubbles that the ozone uses as a vehicle to enter the spa water.
NOTE: If you are not getting the suction required or if water is running out of the tube, then you will need to follow the instructions..
"My spa is not ozone ready I want to install one".
The reason is that the ozone plumbing was not installed correctly at the manufacturer.
Option 2
If you have located the flexible tube mentioned, then your next step is to order the in-line injector P/N 684K-MAZZEI and ozonator, Spa Parts Ltd. recommends using a DELZONE unit. Make sure you order the proper ozonator with the correct cord end that will match the receptacle on your control box.
Once you receive the injector, you will simply cut out a piece of the flex tube in order to install the injector. (See below)
Make sure to install the injector with the arrow pointing in the same direction that the water is flowing.



When Installing the ozonator, find a suitable mounting location that will keep it up and out of any water. Connect the supplied tubing from the injector barb to the ozonator barb.
The next step is VERY IMPORTANT, failure to do so will jeopardize the new ozonator and void the warranty. You will want to create a "loop" (Hartford Loop) in the tubing and install it as high as possible under the spa to keep water from backing up into the ozonator as shown in (Figure 1) above. Water should never be allowed to enter the ozonator. An in-line check valve is also included in every ozone kit and should be used.
Please install it per the supplied instructions, making sure that it is installed in a manner the will allow the ozone to be "drawn" through the tube into the spa.
You can now plug the cord into it's power source, depending on the manufacturer of the ozonator you should have an indication of weather it is working or not by either a site glass or a "blue glow" coming from the manifold. It is best to check this at night. Now turn on the filter/heater cycle and take a look in the spa, there should be one jet that is spitting small bubbles. It is these bubbles that the ozone uses as a vehicle to enter the spa water.
IMPORTANT: When selecting an ozonator please be sure to check the voltage from where the ozonator will be receiving it's power.
Do not assume that because 220 volts is supplying the equipment that the ozonator operates at 220 volts.
Over-voltage or under voltage will void the warranty!
Electrical requirements :
All ozonators are supplied with power cords and are hooked to the equipment control box via a supplied cord end, or they are hard wired directly into the control box. Look on the side of your control box where everything plugs in, if you see an empty slot that will except a (3) prong plug then most likely this is the receptacle for the ozonator. Please look at the selection of cord end to select the proper pattern. If you do not see a receptacle then you will need to hard wire the ozonator cord into the control box. The electrical cord should be wired to the pump relay or switch so that the ozonator comes on only when the pump is on; for 2-speed pumps, the ozonator should be wired to the low-speed pump relay (NOTE: The ozonator should only operate when the low speed pump is running).
The concept :
This installation will require taping into the air line via a barbed fitting (see Figure 2 below). This line is plumbed in series from jet to jet and eventually ties into an air control (you may have more then one) that is mounted on top of the spa. While the jets are running you'll notice that if the air control is closed it will not allow air to mix with the water coming out of the jets in the spa.
However if you open it, the jets increase in power due to the fact that air being pulled in from the air control is now mixing with the water coming out of the jets. This action is called "Venturi".
This installation is going to use the same concept; except, instead of the "mixing air" or pulling air from the air control, it will pull air from the ozonator. Now the air that mixes with the water will have ozone in it and sanitize your spa.

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