4
Technical data and installation instructions
The following I/Os are used for Bermad’s waterworks applications:
DC Solenoid:
Connect the solenoid wires to the cable coming out of the
controller’s first station port. Connect the solenoid’s RED wire
to the controller’s RED wire and the BLACK wire to the controller’s
BLACK wire.
Power Supply:
Open the battery compartment lid and connect a good quality
alkaline 9 Volt battery, then firmly close the lid. When the battery
is first connected, the controller performs a self-test, closes the
DC solenoid and displays the first settings screen. Under normal
use, the battery should last for at least one season.
Hydrometer:
Bermad’s 900 series Hydrometer, or a water meter with pulse
output, is used in pipes dead-end purging application where
the purged-out water is measured by volume instead of by time.
Connect the two water meter pulse wires to the two controller’s
RED wires. Please note that there is no polarity significance in this
connection.
Flow Switch:
Flow switch can be used with the pressure management
application for switching to the high pressure setting in case of
a high demand for water, i.e. in case of fire. In order to connect
a Normally Closed flow switch, cut the YELLOW wire loop coming
out of the controller and connect the cut wires to switch.
Wiring Schematic:
The controller is supplied with the following wires connected to
its terminal strip:
