4. DESCRIPTION
Brio Tank 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 Tank 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 integrated 0.4 Lt expansion tank reduces unwanted pressure surges as
well as “pump cycling” which may arise due to the presence of small leaks
within the system.
The inbuilt pressure gauge makes it easier to control the pressure within the
system; moreover any leaks in the system itself are easily identified.
Where applicable, the secondary pressure gauge installed on the back of the
unit, facilitates the routine checking of the pre-charge value (fig. 03).
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 Tank 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
h
Supply terminals
b
Outlet connection
i
Load terminals (pump)
c
Mains indicator
d
Pump running indicator
j
Cut-in pressure adjustment
screw
e
Fault indicator (dry running)
k
Tank pre-charge valve
f
Reset button
g
Pressure gauge
l
Pre-charge pressure gauge
(optional)
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,
