Rizzoli RTE Série Manuel D'utilisation page 122

3.6 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 mandatory 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
3.7 THERMAL DISCHARGE
For more safety, it is possible to make an auxiliary
circuit of thermal discharge connected directly to
the boiler. The thermal cooker has a predisposition
for this solution. The thermal discharge system al-
lows to cool directly the boiler
when it is necessary by making flow cold leaking
water in a separate circuit inside the boiler. The
making of the thermal discharge system is under
responsibility of the installer. All the components
of the thermal discharge system external to the
thermal cooker must be obtained by third parts
according to the specifies of designer and install-
er. To make this auxiliary system it is necessary to
make the going and return connections, that are
Pression
reduction
Cold water pipe
Picture 23 - Thermal discharge circuit scheme.
3.8 EXAMPLES
Here are some examples of possible system real-
ization. These schemes are just valid as example
and must not be used in the making of the system.
Safety
valve
valve
No return
valve
120
could boil without possibility of outlet, with seri-
ous danger 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 excess produced as sanitary hot water.
interchangeable, the detector that rules the device
must be inserted in the apposite connection bulb.
The system, to be effective, must be able to work
and must have availability of cold water also in
case of lack of AC power. The safety devices must
be accessible also after the installing for the main-
tenance and the functional verify. The functional
verify must be done regularly: we suggest at least
once a year. The thermal discharge circuit must
not be used for the production of hot water for
domestic use.
On demand, Rizzoli can give a thermal discharge
valve appropriate for the use with its thermal
cookers.
Sensor detector
T of
cleaning
Downflow
Inflow
Thermal
discharge
valve
Ask always a thermal technician for an installation
that best suites your needs.
Discharge
pipe