Unical TRIOPREX N Series, Инструкция по установке, использованию и обслуживанию

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32
In the fig. 34 the typical connection of the
boiler to C.H. system with two heating zones,
of which one is with motorized mixing valve.
Both, the heating zones are controled by an
outer compensator.
The electrical connections of the heating
pumps and the mixing valve motor must be
connected strictly according to the schema
shown in fig. 32.
The temperature sensors will be connected
according to the schema shown in fig. 33.
Remember that all the TRIOPREX-N boilers
are for forced circulation.
It is suggested to adopt a shunt pump "Pr" to
guarantee the circulation through the boiler
in any possible open condition of the mixing
valve (see fig. 34).
The shunt pump “Pr”, which will have a
throughput equal, at least, at 50% of the C.H.
pump and a manometric of of 1 m W.G., will
perform also an anticondensation function,
limiting the too cold returns into the boiler.
The hydraulic schemas shown in the figs. 34
& 35 are principle schemas; in case of different
system circuits, contact, please, our after sale
service dept., which will supply you with all
the necessary informations.
3.7 - ELECTRICAL AND HYDRAULIC CONNECTIONS OF C.H.
fig. 34
In a C.H. installation equipped with a D.H.W.
storage tank, the hydraulic schema, shown
in fig. 35, can be used.
3.8 - ELECTRICAL AND HYDRAULIC CONNECTIONS OF C.H.
AND D.H.W. PRODUCTION CIRCUITS
C Boiler
P1 C.H. pump for direct zone
P2 C.H. pump for mixed zone
Pr Shunt pump
VM2 Mixing valve
KF Boiler temperature sensor
VF Flow temperature sensor
fig. 35
C Boiler
B
Storage tank
P1 C.H. pump for direct zone
P2 C.H. pump for mixed zone
Pb Storage tang loading pump
Pr Shunt pump
VM2 Mixing valve
SPF Storage tank temperature sensor
KF Boiler temperature sensor
VF Flow temperature sensor
Note : Also in this case the remarks made in
the previous paragraph are applicable, i.e.:
the adoption of a shunt pump (Pr).
The electrical connections of the storage tank
loading pump will follow the schema shown
in fig. 32.