8
INSTALLATION
Introduction
This section describes steps for installing the pump, hoses and wiring. Please read this instruction before starting any
activity.
Follow these guidelines when installing the pump:
Make sure the pump is powered off and any other related equipment before starting any activity.
In case of any unusual events or warning signs, stop immediately. Start again only when you are absolutely sure
that any possible problem has been solved.
Do not install the pump in hazardous environments such as at risk of fire or explosion.
Avoid risk of electrical type and or fluid leakage. Never use a damaged or defective pump.
Pump installation
Install the pump away from heat sources, in a dry place and at a maximum ambient temperature of 40°C. The minimum
operating temperature of the pump depends on the liquid to be dosed, as the liquid must remaining a fluid state . If the pump has
been stored at an ambient temperature of less than 0°C, make sure that any water present in the pump head is in a liquid state
before starting up the pump.
Locate the pump as shown in fig.2 taking into account that it can be located over or under the liquid level within a maximum
difference of 1,5 meters. The injection point must always be located higher than the liquid to be dose.
If the plant being treated operates at atmospheric pressure (free discharge additive) and the additive tank must be placed
higher than the injection point (Fig. 2a),check periodically that the injection valve is operating correctly, as excessive wear could
cause additive injection by liquid loss (even when the plant is not operating). If the problem persists, insert a correctly calibrated
counter pressure valve C
between the dosing pump and the injection point (Fig. 6).
For liquids that give off aggressive exhalations, do not install the pump over the tank unless the tank is hermetically sealed.
Fig. 2a
Fig. 2b
Electrical scheme
Respect the regulations in force in different countries concerning the electrical installation. If the power cable has no plug, the
equipment must be connected to the power supply using an omnipolar switch with a minimum distance of 3 mm. Before accessing
the power connection devices,
all power circuits must be interrupted.
