Italtecnica Brio-Top Manual De Instrucciones página 178

Installation and connection of twin booster sets with
MORSETTIERA DI
COLLEGAMENTO
ALARM
OUTPUT
such that operation of one pump only is not sufficient, the second pump with Brio Top (SLAVE device) is
started up. On progressive closure of the utilities, the reduction in the system flow rate leads f irst to the
shutdown of the secondary pump on which the Brio Top is installed, later followed by the variable speed
pump on which Sirio is installed. The flow rate level at which the secondary pump is shut down depends
on the value set in the parameter "Deactivation threshold" of the Brio Top; a higher value in this
parameter leads to a quicker deactivation of the second pump, while a lower value maintains the
"SLAVE" pump in operation even at lower flow rates.
If Sirio, i.e. the current MASTER device, shuts down due to a power failure, or blocks due to a fault,
system control is transferred to the Brio Top device, which then immediately becomes the new MASTER
to enable the system to continue operation. However, in this case operation at constant pressure is no
longer guaranteed, as there is no variable speed device. It is recommended to install an expansion
vessel of at least 5-8 litres, to prevent, in the event of a fault on the Sirio device, Brio Top from activating
excessively frequent start-ups.
The programmed values of Pmin and Pmax must be the same on both devices.
IT EN F DE E
INSTALLATION: install the Brio Top
on the delivery line of the secondary
pump and the Sirio inverter on the
main variable speed 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 and
Sirio can be mounted vertically or
horizontally.
CONNECTION: the connection between the Brio Top
and Sirio devices is by means of an unshielded cable
2)
(4x0.5 mm as 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). For Brio Top the operating mode
must be set to "P+P" and the parameter Aux. Con. to
"4". In the case of Sirio it is sufficient to set the
parameter "Aux. Con." to "1".
OPERATION: when switched on, the Sirio device
always sets to MASTER status and is assigned the
role of main controller. On opening of the utilities,
Sirio starts up the pump first; if the water demand is
PT SK CZ
178
Sirio
inverter
RUS RO