Ravelli o-ring, User Manual

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for safe operation. Below are some examples of graphics displayed by the O-
Ring when fan speed is increased or decreased.
-10 VOLT +10 VOLT
-20 VOLT +20 VOLT
-30 VOLT +30 VOLT
!
USE THIS FUNCTION CAREFULLY IF THE STOVE IS RUNNING AT MAXI-
MUM POWER P12: DO NOT SLOW DOWN THE FAN TOO MUCH TO PRE-
VENT THE BODY FROM OVERHEATING AND THE ACTIVATION OF THE
WARNING SIGNAL HOT FUME, DESCRIBED IN THE NEXT CHAPTER.
Installation and activation of external thermostat
The Ravelli Young stove enables connecting an external thermostat, when run-
ning in T-ON / T-OFF mode, to control the room temperature. The operation
should be performed with the aid of an Authorized Support Centre because the
connection requires an intervention on the electronic equipment of the stove. It
is required a connector with code 55177. O-Ring operation remains unaltered.
It is only added the MODULATION function. Chronothermostat and Eco-Stop are
disabled. It will not be possible to switch off the stove from the external thermo-
stat. It will run continuously in modulation mode.
Below is shown the way in which the O-Ring indicates this mode:
After reaching the set temperature on the
external thermostat, the stove enters the
modulation mode, storing the operating
power and any extra power set.
During operation in modulation mode,
the extra power of the machine cannot
be changed. It is, however, possible to
change the stored operating power to
ensure that, when exiting the modulation
mode, the stove functions at the newly set
power. The example shows the operation
at P.6, further switched to modulation: by
rotating the O-Ring dial, we can set the
new power; we will set P.3, which will be displayed for a few seconds through
the BLUE LED, returning then to the display of the 2 BLUE FLASHING LEDs. As
soon as the thermostat detects the decrease in temperature, it is triggered, and
the Young stove will start operating at the new P. Set.
modulation: the first 2 BLUE LEDs are blinking
example of operation at power 3 STEADILY LIT LEDs
example of operation at power 6 STEADILY LIT LEDs
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