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Injection Line
Unscrew the fixing nut of the connector located on the bottom right side of the pump
head and marked in the figure with an outgoing arrow. Cut the white semi-rigid
polyethylene tube. Insert the fixing nut and the tube-wrench on the tube. Mount the
tube on the conic tube-holder of the suction connector pushing it until it reaches the
stop collar. Fix the tube by screwing the fixing nut onto the head connector of the
pump head. Place the injection tube avoiding as much as possible the curves and
ensuring that the pulses do not make the tube rub against rigid bodies. Perform
electrical connections (see related section in the manual) and power the pump. At
the injection point on the pipeline, mount a ½" GAS connection internally threaded
(not supplied). Wrap PTFE tape to the thread and tighten the injection valve to the
fitting. Unscrew the pipe-wrench nut of the injection valve fitting. Cut the white
semi-rigid PE tube. Insert the pipe-wrench on the PE tube. Mount the tube on the
conic hose of the injection valve pushing it until it reaches the stop collar. Screw the
pipe-wrench nut onto the valve fitting.
Note: The injection valve also works as a non-return valve; do not disassemble it
internally.
Electrical Connections
The W530 unit is supplied already wired internally and complete with a power cable
(with plug upon request). This is the only electrical connection to be performed by
the customer. Standard power supply: 230 V∼ 50 Hz monophasic.
Carefully follow all the rules of electrical safety. Before starting the unit, check that
all electrical and plumbing connections have been properly executed.
The measure inputs from pH and ORP electrodes are available on BNC connectors
while inputs for level sensors (one for each pump) and flow sensor are available on
special connectors that allow an extremely fast and easy connection even for
unskilled personnel.
Note: The pH and ORP inputs should never be left open; if an input is not used, you
need to short-circuit it.
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