Fig. 22. Optional Modules and Cable Hub
Fig. 23. Cascading Module
Fig. 24. Web Server Module
Cable hub is already in-
stalled in the standard
configuration of the
boiler and is connected
to the main board to
supply power to the
display unit.
i
I-53
A-070336_EN • Rev. A
a
ddItIonal
I
nformatIon
for
the
I
nstaller
Optional Modules
Additional Heating Circuit Modules & Cable
Hub
Nesta boilers can control 3 heating circuits with
mixing functions, using 3 extension modules. Each
extension supply needs to be provided with power
supply and a bus connection.
Web Server Module
Through the use of this module, you can connect
to an Ethernet and get remote access to the boiler
and all the heating system via the Internet. Using
a computer or mobile devices, you can monitor
and control the installation remotely. Management
takes place via a web browser.
Cascading module
This module allows the installation of several boil-
ers in a cascade to increase the heating power in
specific applications. This cascade module en-
ables communication from one boiler to another,
and must be installed in each boiler. See