Italtecnica FLUOMAC Manual De Instrucciones página 10

In the case of very high flow rates, the Fluomac device can be installed in a "by-pass" mode, in
parallel with a non-return valve placed on the main outlet, as shown in Fig. 06, to reduce pressure
drop.
7. b ELECTRICAL CONNECTIONS
Note: All electrical connections should be carried out by qualified personnel only, as shown in Fig.
3
In the case of pumps with power exceeding 500 W and an ambient temperature greater than 25° C,
heat-resistant cables (resistant to at least 105°C) must be used. Use only the terminals supplied
with the device.
In the version in which the connecting cable is included, simply connect the power plug of the pump
to the Fluomac's electrical socket and the Fluomac device's plug, into a power outlet. Note: the
units supplied with 1 mm
The pump connected to Fluomac must be adequately protected against current
overloads.
8. CUT-IN PRESSURE ADJUSTMENT
CAUTION: Turning the adjustment screw will not alter the maximum pressure delivered
by the pump!
The pressure is factory pre-set at 1.5 bar, which is optimal for most applications. Different working
pressures may be obtained by adjusting the screw on the inner flange, which is marked by the
symbols + and -.
You may need to change the factory-adjusted pressure settings:
1) If the tap situated at the highest point is more than 15 metres above the Fluomac (fig. 05 –
Hmax: 30 mt)
2) For increased load, i.e. when the load pressure is added to the pump pressure (max. 10 bar).
CAUTION: It is important that the MAXIMUM PRESSURE of the PUMP is at LEAST 1.0
BAR HIGHER THAN the cut-in pressure set ON THE FLUOMAC device.
9. COMMISSIONING
CAUTION: If the water level happens to be below the level at which the pump is installed
(negative head), it is imperative to use a suction hose complete with foot valve to prevent
water from draining back into the well.
Before switching on, make sure that both the suction pipe and the pump are primed. Start the
pump by switching on the Fluomac device. As soon as the pump stops running, open the tap
positioned at the highest point within the system.
If there is a steady flow from the tap, and the pump runs uninterruptedly, the commissioning
procedure has been successful. If there is no continuous flow, try to run the pump for a short while
by holding down the RESET button. If the problem persists, disconnect the Fluomac device and
repeat the whole procedure.
2
cables is suitable for maximum loads up to 10A.