Installation Of The External Temperature Probe; Electric Connection Between The Boiler And The External Probe; Remote Electric Connection (Optional); Separator - Biasi M300V.2025 SM User Manual And Installation Instructions

micro switch contacts in clamps "A and B"
of the ambient thermostat's terminal block
as in Fig. 6.19.
Remove the electric jumper between "A
and B".
Allow the cables to exit the boiler by using
the relevant cable clamps "X" (Fig. 6.18).
6.11 Installation of the external
temperature probe
(optional)
The external probe must be installed on the
external wall of the building avoiding:
• Direct sunlight.
• Humid walls or walls subject to the forma-
tion of mildew.
• Installation near to fans, drain outlets or
chimneys.
• It is recommended to be installed on a
north aspect wall at least 1 m below any
eaves and at least 2 m above ground.
6.12 Electric connection between
the boiler and the external
probe
To connect the external probe to the boiler
use electric cables with a section no less
than 0.50 mm .
2
The electric cables for connecting the
external probe to the boiler must cover
different channels to the voltage ones
(230 V), since they are powered at a safe-
ty low voltage and their maximum length
must not exceed 20 meters.
Use the clamps indicated in Fig. 6.21 to
connect the external probe.
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INSTALLATION
Voltage-free contacts for
the Ambient Thermostat or
Fig. 6.21
Allow the cables to exit the boiler by using
the relevant cable clamps "X" (Fig. 6.18).
6.13 Remote electric connection
Use the clamps indicated in Fig. 6.21 to
connect the remote.
To connect the remote control to the boiler,
refer also to the REMOTE CONTROL book-
let.
Do not remove the electric jumper con-
nected on the ambient thermostat termi-
nal block between "A and B" Fig. 6.21.
Allow the cables to exit the boiler by using
the relevant cable clamps "X" (Fig. 6.18).
6.14 Example of hydraulic systems
The hydraulic separator creates a reduced
load loss zone that renders the primary cir-
cuit and secondary circuit hydraulically in-
dependent.
In this case the flow rate that passes through
Remote Control
(optional)
with hydraulic separator
(optional)
External
sensor