4
4.DESCRIPTION
Brio 2000 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, Brio 2000 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).The inbuilt pressure gauge makes it easier to control the pressure within the
system; moreover any leaks in the system itself are easily identified.
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 Brio 2000 and the pump itself must be protected against freezing during
cold weather spells.
5.PARTS AND COMPONENTS
Fig.01 shows the major components:
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
Brio 2000 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 Brio 2000 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).
a
Inlet connection
f
Pressure gauge
b
Outlet connection
g
Supply terminals
c
Mains indicator
h
Load terminals (pump)
d
Fault indicator (dry running)
i
Cut-in pressure adjustment screw
e
Reset button