Davey OZOMATIC OZONE GENERATORS - Manual (Page 8)

8
OZOMATIC
®
INSTALLATION FOR ABOVE GROUND POOLS
USING THE BY-PASS INJECTOR
MODELS MOG 60 AND MOG 120
(ALSO MOG 20 FOR COURTYARD POOLS AND SPAS REQUIRING A BY- PASS INJECTOR)
On systems where the back-pressure is likely to be high, such as below ground spas or pools with high head
features (e.g. high waterfalls), a different injection approach may be needed. See “Ozomatic installation for spas
and pools with high back-pressure”.
Your Ozomatic
®
and injector are purchased separately. Ensure that you have selected the proper injector. The
high efficiency injector used is the most efficient injector available.
The by-pass injector should be plumbed into the return line after all other accessories. The clear hose should be
connected to the barb on the injector (refer diagram). The amount of air flow through the Ozomatic should be
adjusted by turning the ball valve on the injector. By using the optional flow gauge and attaching it to the end of
the clear hose a flow of approximately 8-10 for models MOG 20 and MOG 60 and 16-20 for MOG 120 on the
gauge indicates optimum ozone production.
On systems where the back-pressure from the pool is so great that a suction cannot be created no matter how
much the ball valve is closed down then either the pool pump should be reduced in size or the impeller changed
to reduce the water flow. This situation usually exists when the pump has been replaced with a larger one on
existing pool/spas.
IMPORTANT – The clear hose comes complete with a non-return valve. Make sure that this valve is
around the right way so that air can be drawn through the ozone unit. If the Ozomatic is to be installed
below water level then the clear hose must be looped above the highest possible point; otherwise the water
could drain out of the spa through the ozone unit causing damage. Warranty is void if water damage is
apparent. Refer to warranty card for detailed conditions.
OZONE AIR LINE - MUST BE DOUBLE LOOPED AND CONNECTED ABOVE WATER LEVEL
BY-PASS INJECTION FOR ABOVE GROUND