Heating System (Lt 90); Auxiliary Connections - Rizzoli L Série Manuel D'utilisation

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HEATING SYSTEM (LT 90)

3.1 GENERAL NOTES
LT thermal cookers are endowed with boiler to
use the heating produced by the device through
a system with fluid vector for heating and for the
production of hot water. Usually the system shall
be designed according to UNI 10412-2 law by a
qualified thermal technician and installed by spe-
cialized staff according to the existing laws and the
3.2 CONNECTIONS TO THE HEATING SYSTEM
Before the lighting of the thermal cooker it is nec-
essary to make the connections to the heating
system. The use of the thermal cooker with empty
or not connected to the system boiler causes the
irreversible damaging of the boiler itself.
3.3

AUXILIARY CONNECTIONS

According to the system you want to install, there
are some auxiliary connectors for facultative use,
but sometimes necessary. These are the connec-
tors for the thermal discharge circuit, the connec-
3.4 THERMOSTAT
LT thermal cookers are not endowed with ther-
mostat. If you want to create a forced circula-
tion based heating system it is necessary to use
an external thermostat to control the working of
the circulation pump of the system, according to
the temperature of the water in the boiler. The
WARNING! For a longer duration of the boiler of the thermal cooker, you must not make
circulate the water with temperatures lower than 55-60° C. Lower temperatures generate
acid condensation and gas-black on the walls of the boiler.
3.5 SAFETY
On every solid combustible based boilers it is not
technically possible to break the combustion im-
mediately as happens for boilers based on liquid
or gas combustible according to necessity. For
this reason, it is important to swallow always the
produced heating also even if the heating system
does not request that and also in case of lack of AC
power. On contrary, the water in the boiler could
UNI 10683 law.
The LT Range thermal cookers are endowed with
all the necessary predispositions for a correct in-
stallation, every external component (as pumps,
valves, acoustic alarms system, pressure switches,
expansion tank) must be obtained by third parts
according to the specifies of designer and installer.
Anyway, it is necessary to connect the going con-
nector, the return connector and the discharge
connector (necessary to empty the boiler in case
of maintenance).
tor for the detector of thermal discharge valve
and the connector for the thermostat. If not used,
these connectors must be covered.
thermostat must be placed external to the device
with the temperature detector inserted in an suit-
ed cockpit in the rear part of the thermal cooker.
The thermostat must guarantee the working of the
pump each time the water temperature of the boil-
er exceeds the set temperature.
boil without possibility of outlet, with serious dan-
ger of explosion of the boiler and serious injury risk
for the people present near the thermal cooker.
For this reason, we recommend to follow strictly
what is written in UNI 10412-2 law in the various
cases and we suggest also to insert in the system
also a boiler able to accumulate the heating in ex-
cess produced as sanitary hot water.
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