Italtecnica FLUOMAC Manual De Instrucciones página 9

4.DESCRIPTION
Fluomac is a device that enables pumps, with a minimum prevalence of 2 bar, to start and stop
automatically, with regard to a drop in pressure (opening of the taps) and to the stopping of the flow
through the system (closing of the taps) respectively.
Should the water supply be interrupted for any reason, Fluomac performs the important function of
stopping the pump, thus protecting it from harmful dry running.
It is also able to restart automatically, by means of an inbuilt timer, to check for the eventual
presence of water (this function is only available for versions with automatic reset function).
It is strongly recommended that the water is free of any sediment. If in doubt, it is
necessary to install an appropriate sediment filter on the inlet side.
The device must not be installed inside wells or sealed enclosures, where heavy
condensation is likely to form.
Both Fluomac and the pump itself must be protected against freezing during cold
weather spells.
5.PARTS AND COMPONENTS
Fig.01 shows the major components:
a Inlet connection
b Outlet connection
c Mains indicator
d Fault indicator (dry running)
6.OPERATION
The appliance activates the pump for about 15 seconds when it is powered. The pump starts every
time it senses a pressure drop within the system, for example when a tap is opened.
Unlike traditional water system equipped with pressure switch and pressure tank, it is the minimum
flow that determines when the pump should stop, rather than the cut-out pressure. The device
delays the pump from stopping for a further 7 – 15 seconds, thus reducing pump cycling in low flow
conditions.
7. INSTALLATION
7.a HYDRAULIC CONNECTIONS
Fluomac can be installed either in a vertical or a horizontal position, anywhere between the pump
outlet and the first outlet (tap). Care must be taken to ensure that the direction of the arrow on the
cover is in the same direction of the flow of the fluid within the pipes (fig. 05). All hydraulic
connections must be properly tightened. An adequate pressure reducing unit must be fitted on the
delivery port of any pump exceeding 10 bar working pressure.
CAUTION: With the exception of submersible pumps, installing a non-return valve
between the pump outlet and the Fluomac inlet may adversely affect pump operation.
(The pump may fail to stop). If it is necessary to install a non-return valve, this must be
mounted at least 3 meters away from the device (fig. 04).
e Reset button
f Supply terminals
g Load terminals (pump)
h Cut-in pressure adjustment screw