Operate and install an Aquazone water Ozone generator

Water Ozone generator produce ozone from oxygen in the air using the corona discharge principle. Alternatively pure oxygen gas can be fed into the generators either from bottled oxygen or from an oxygen generator ( PSA). As a general rule of thumb whatever the ozone output using atmospheric air is can be doubled when oxygen is used as the feedgas.

As ozone is a gas, there needs to be an efficient method of drawing it into the water and mixing the gas effectively with the water. Generally a venturi is used for this purpose and this is normally plumbed directly into the delivery line or through a bypass system

However care must be taken in the installation to ensure that the water from the venturi does not  ” blow ”  back into the ozone generator tubes.

Although non return valves are supplied these cannot be relied upon and it is essential that the ozone generator is installed higher than the water level.

In addition a look as shown of the ozone gas delivery line will ensure further protection.

INSTALLATION BASICS

As ozone is highly corrosive to some materials, please ensure the following:

    • Stainless steel circulation and discharge pump with a Teflon seal is essential if there is residual ozone in the water. Cast iron pumps will rust and negatively affect the water quality.
    • Only UPVC, PVC and Stainless Steel fittings and piping can be used with no galvanised fittings in the ozonated water line.
    • Ensure that the venturi ozone injector is installed in the right direction as indicated by an arrow on the venturi
  • The Circulation or Filling pump should be plumber to always empty the two tanks equally.
  • The pump controller  depends on the filling line tap and the two circulation solenoids.
  • The two solenoid are controlled by a timer to ensure water treatment over night and day. The timer is set that one tank will circulate at a time.
  • Normal circulation time is 20 minutes every hour per tank.
  • The venturi will ensure that the ozone is injected for both the circulation and the filling programmes.

The AQUAZONE Ozone generator is cooled by air using a built-in fan.

The inlet of the fan as well as the outlet vents on the side of the ozone generator should not be covered, blocked or placed to close to a wall in order to avoid overheating of the electronic elements.

The AQUAZONE  draws air from the atmosphere through the corona tubes.

Moisture decreases the production of ozone. Hydrocarbon (e.g. methane) can form C02 and water with ozone. Using air as a feed gas, water can react to nitrous acid nitric acid resulting in the formation of nitrogen oxide. This might damage the electrodes.

For this reason the feed gas must fulfil the following conditions:

– The dew point must be lower than -40c (233K).

– The feed gas must be hydrocarbon-free.

The Aquazone Air drier works on the basis of the silica gel material removing the moisture out of the air as it passes through the plastic container. In wet atmospheric conditions the gel will absorb moisture and change colour.

 

When this happens the silica gel must either be heated up and dried or replaced. The heating up can be done in the oven, microwave oven or direct sunlight. First remove the drier from the body of the generator by pulling the 2 plastic connections out from the side panel connections. To remove the silica gel for drying, unscrew the end cap, perforated plate and foam rubber insert. Place the silica gel into a glass or ceramic container and gently heat up until the colour changes back indicating removal of moisture.

 

 

OTHER COMPONENTS

–  Flow meter 0-10L/M: this flow meter controls the airflow into the ozone generating tubes.

–  Air pump: The air pump provides a constant airflow through the ozone tubes which also help with the cooling of the tubes.

–  Fans (220V): these fans are for cooling of the PC boards and the ozone generating tubes.