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Installation of options | Latch option
Assembly and connection manual | Agrónic 4500
2-wire latch connection
5.2. LATCH OPTION
In installations where a very low energy consumption
is needed, latch valves are usually used. Latch solenoid
valves, also called impulse valves, work by locking their
hydraulic position in opening or closing, consuming
energy only at the moment of change. This allows
power to be powered by a battery only or by battery
and a solar panel. The calculation will be made taking
into account options and auxiliary installation systems.
The installer can prepare the controller to use latch
solenoid valves in the format of two or three wires and
the trip voltage at 12 or 22 volts. See the section “Para-
meters - Installer”.
When installing 3-wire models it will be necessary to in-
corporate in the installation a box of diodes, adequate
to the total number of outputs of the controller, to carry
out the connection of the start and stop commons. In
the 2-wire models is not necessary.
One of the two cables will be connected to the common
outputs “CR” and the other to the corresponding
output between “R1” to “R104”.
When the solenoid valve actuates hydraulically at the
inverse of the order given by the controller, this will
be inverted order by entering “Installer Parameters -
Varioius”.
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