21
Figure 23
9.4.1. Alarm dEP no (pressure alarm – alarm of the pressure switch)
It occurs when irregularities occur related to:
The flue pipe hardly pulls which causes poor, insufficient pressure.
If the alarm continues occurring, check whether the stove of the flue should be serviced.
The smoke pressure switch controls the negative pressure in the stove chamber due to improperly closed door or
ash box, or due to some obstacles in the smoke outlet. In this case, the display shows the message
ALAr dEP no
(Figure24
)
, the smoke motor functions maximally and then it switches off after 10 minutes.
Figure 24
9.4.2. Alarm ALAr Sond (alarm of the probe for flue gases)
It appears when an error occurs in the smoke detection probe, when the probe is broken or it is not connected.
The stove begins the switching off procedure while the alarm is switched on.
Alarm of the smoke probe:
if some malfunction occurs at the smoke probe, the display shows the message
"SOND FUMI ALAR"
, and in this case the fan and the smoke suction device function with full power.
Figure 25
9.4.3. Alarm ALAr hot (alarm for excessive smoke temperature)
It occurs when the probe for flue gases indicates too high temperature (mote than 280ºC)
The stove begins the switching off procedure while the alarm if on.
Figure 26
9.4.4.
Alarm of the chamber:
this alarm appears when the temperature of the stove chamber is too high and then
the message
"HOT TEMP ALAR"
appears. In order to prevent the occurrence of this alarm to certain temperature
limits, the smoke suction device and the exchanger must function at their maximum, and the fuel pellets are
minimally inserted. In order to return to normal operation, press the button 4, for 3 seconds until the boiler returns
back to ON (switched on) state.
9.4.5. Alarm for overheating of the chamber or temperature of the snail distributor for pellet supply:
It
occurs if the main safety thermostat from
80°C or 180°C reads a temperature higher than the allowed. The
message „
ALAr dEP no
“ appears (Figure 27) and the system stops. This alarm appears when the temperature of
the chamber or the temperature of the funnel for pellet inlet is too high, and in this case the following message
appears
" ALAr dEP no "
. This is one additional safety mechanical device. In order to return to normal operation,
you need to wait for the stove to get’ cold (the fans for smoke and for cooling are in function). This cooling lasts
about twenty minutes. Than restore the function of the safety thermostat that has blocked the stove operation (by
unscrewing the plastic cover and manually press the thermostat button until a silent metal sound is heard) which is
dEP
AttE