Electric Connection Between The Boiler And The External Probe; Remote Electric Connection (Optional); Example Of Hydraulic Plants With Hydraulic; Separator - Biasi Advance Plus 25C ERP User Manual And Installation Instructions

• Installation near to fans, drain outlets or
chimneys.
6.13 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. 6.26 to
connect the external probe.
Remote
External
Probe
Electric
power supply
Ambient
thermostat
Fig. 6.26
The route of the external probe's connec-
tion wires must follow the route indicated in
- 56 -
INSTALLATION
Fig. 6.18.
Allow the cables to exit the boiler by using
the relevant cable clamps Y (Fig. 6.19).
6.14 Remote electric connection
Use the clamps indicated in Fig. 6.26 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 "1 and 3" Fig. 6.26.
The route of the remote control cable must
follow the route indicated in Fig. 6.18.
Allow the cables to exit the boiler by using
the relevant cable clamps Y (Fig. 6.19).
6.15 Example of hydraulic plants
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
the circuits depends exclusively on the fea-
tures of the pumps flow rate.
Therefore, by means of a hydraulic separa-
tor, the secondary circuit's flow rate is put
into circulation only when the relative pump
is on.
When the pump of the secondary is off,
there is no circulation in the correspond-
ing circuit and therefore, the entire flow rate
pushed by the primary is by-passed through
the separator.
Thus, with the hydraulic separator, it is pos-
sible to have a constant flow rate production
circuit and a variable flow rate distribution
(optional)
with hydraulic separator
(optional)