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Do not remove the electric jumper con-
nected on the ambient thermostat termi-
nal block between "1 and 3" Fig. 6.27 .
The route of the remote control cable must
follow the route indicated in Fig. 6.17 .
Allow the cables to exit the boiler by using
the relevant cable clamps R ( Fig. 6.18 ).
6.16
Example of hydraulic plants
with hydraulic separator
(optional)
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 fl ow rate that passes through
the circuits depends exclusively on the fea-
tures of the pumps fl ow rate.
Therefore, by means of a hydraulic separa-
tor, the secondary circuit's fl ow 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 fl ow rate
pushed by the primary is by-passed through
the separator.
Thus, with the hydraulic separator, it is pos-
sible to have a constant fl ow rate production
circuit and a variable fl ow rate distribution
circuit.
- 50 -
INSTALLATION
Hydraulic plant examples
Top zone + low temperature zone.
Fig. 6.28
Top zone + 2 low temperature zones.
External
probe
Low
temperature 2
Fig. 6.29
External probe
Low temperature
Hight temperatur
Low
temperature 1
Hight
temperature
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