Rizzoli ST Série Manuel D'utilisation page 136

thermal cooker.
SANITARY FUNCTION - In the kit with FDG
control unit the prevalence of the sanitary
hot water is ensured by the disposition of
the heat exchangers.
ALARM FUNCTION - If the temperature ex-
ceeds the set value for the alarm, an acoustic
and visible signal will be activated. Pushing
any button will deactivate the acoustic sig-
nal for 5 minutes.
STANDBY FUNCTION - If the control unit is
off and the temperature exceeds the value
set as safety thermostat, the control unit will
automatically start and turns on the pumps.
5.5 3 WAYS VALVE CONNECTION
In some cases, it might be useful to pro-
duce sanitary hot water from two different
generators. The system could obtain water:
from the thermal cooker, when it is work-
ing; from the other heat generator, when it
does not work.
ANTIFREEZE FUNCTION - If the temperature
decreases under the value set as antifreeze,
the P1 pump is activated intermittently ac-
cording to the set intervals. The screen indi-
cates ICE symbol.
TEST PUMP FUNCTION - The continuous
pressure on push button
activation of the circulation pump P1 or P2
respectively. The screen indicates tSt symbol.
PUMP ANTI-CLOG FUNCTION - In case of
long inactivity of the pumps, they are acti-
vated at regular intervals for a limited time
to maintain the system in efficiency. The
screen indicates bLP symbol.
For this reason the installer may use a three
ways valve ruled by the control unit of the
thermal cooker. The control unit gives the
power connection to the valve. The valve
may be powered in both ON and OFF condi-
tions, by connecting the cable correctly.
134
L6 L6
L1 L1
L2 L2
L3 L3
L5 L5
L4 L4
or forces the