Auxiliary Connections - Rizzoli ST Série Manuel D'utilisation

3. HEATING SYSTEM
3.1 GENERAL NOTES
ST thermal cookers are endowed with boiler
to use the heating produced by the device
through a system with fluid vector for heat-
ing and for the production of hot water.
The ST Range thermal cookers are endowed
with all the necessary predispositions for
a correct installation, every external com-
ponent (as pumps, valves, acoustic alarms,
3.2 CONNECTIONS TO THE HEATING SYSTEM
Before the lighting of the thermal cooker
it is necessary 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 damag-
3.3

AUXILIARY CONNECTIONS

According to the system you want to install,
there are some auxiliary connectors for fac-
ultative use, but sometimes necessary. These
are the connectors for the thermal discharge
3.4 THERMOSTAT
ST thermal cookers are not endowed with
thermostat. If you want to create a forced
circulation based heating system it is neces-
sary 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 thermostat detector
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.
(ST 60, ST 90)
pressure switches) must be obtained by third
parts according to the specifies of designer
and installer. The ST 90 model can be made
also in STK version with an applied hydraulic
kit added.
For what concerns the heating system deal-
ing with the STK model, please read chapter
4.
ing of the boiler itself.
Anyway, it is necessary to connect the go-
ing connector, the return connector and the
discharge connector (necessary to empty the
boiler in case of maintenance).
circuit, the connector for the detector of
thermal discharge valve and the connector
for the thermostat. If not used, these con-
nectors must be covered.
must be inserted in the apposite connec-
tor on the back of the thermal cooker. He
thermostat must activate the pump when
the temperature of the water is higher than
the set temperature and must keep it stable
lower than the set temperature.
119