Italtecnica Brio-Top Manual De Instrucciones página 167

Installation and connection of twin booster sets
CONNECTION
CONNECTION: the connection between the two Brio Top
devices is by means of an unshielded cable (4x0.5 mm
shown in the diagram alongside. the maximum length of the
cable is 100 cm including stripped sections.
A pre-assembled connection cable is available, with terminals
and numbered wires (code no. SR-CBL4X05-100). The
operating mode must be set to "P+P" and the parameter Aux.
Con. to "1".
MASTER STATUS: when the device is MASTER it is sensitive to variations
in system pressure, and is therefore able to start and stop the electric pump
according to system demands.
SLAVE STATUS: when the device is SLAVE the letter "s" appears on the
bottom line of the display; in this condition, the pump is only started if the
pressure falls below the value set in the parameter "Pmin2".
OPERATION: when switched on, the first device that manages to assume priority is assigned the status
of "MASTER" while the other becomes "SLAVE". On opening of the utilities, the "MASTER" device starts
up the pump first; if the water demand is such that operation of one pump only is not sufficient, the
second pump (SLAVE device) is started up. On progressive closure of utilities, the rise in system
pressure leads to simultaneous shutdown of the two pumps at the value set in Pmax.. After shutdown
the status of "MASTER" is transferred to the other device, to ensure that there is continuous alternation
of which pump is started up first. In the event of a fault or error on one of the two Brio Top devices, the
other is automatically assigned the status of Master and starts to operate independently. If the current
MASTER device shuts down due to a power failure, or blocks due to a fault, system control is transferred
to the SLAVE device, which then immediately becomes the new MASTER.
The programmed values of Pmin, Pmin2 and Pmax must be the same on both devices.
IT EN
TERMINAL
BOARD
F DE E
INSTALLATION: install each Brio Top
on the delivery line of the respective
electric pump. Connect the outlet
connector of each device to the
delivery manifold without inserting any
type of check valve. Connect the intake
lines of the pumps to the common
suction manifold, inserting a check
valve for each pump to prevent
drainage when stopped. Brio Top can
be mounted vertically or horizontally.
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