SWITCHON AND FUNCTIONING CYCLE
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Chapter 5
SWITCHON AND FUNCTIONING CYCLE
Before switching the boiler on the following points must be veri ed:
the combustion chamber must be free and clean.
The burners must be completely free and clean.
Check hermetic closure of the re doors.
Check that the power supply cable is connected correctly.
The bipolar switch in the rear part must be positioned on 1.
Check for the presence of pellets in the tank.
Before every 0/1 switch-on the check-up must appear.
Press button 1(esc) for 3 seconds: “1. START” will be displayed on the display. In this phase, the
appliance cleans the burner through a shaking of the mobile grate positioned on the bottom..
Following, the boiler will pass to “2. IGNITION”: in this phase the appliance loads the pellets inside
the burner to trigger the combustion process. If at the end of the second cycle the boiler has not
developed a ame “NO FLAME ALARM” will appear on the display. In this case press button 1(esc) for
3 seconds until the display shows “FINAL CLEANING”, remove and re-apply current from the master
switch and repeat steps 1 and 2.
If the alarm appears several times consecutively, contact the after-sales service.
The rst time the product is used, even if the tank is full of pellets, there is the possibility that
during the rst ignition cycle the pellets are not fed. This is because the pellet feed worm screw
is empty. If at the end of the rst cycle the boiler has not yet developed a ame, this will re-start
from the START phase.
If points 1 and 2 have been carried out correctly, the moment the boiler develops the ame, the 3.
boiler will pass to “BURNING”, ame settling phase before starting work.
Completed the start phase, the boiler will pass to “4. WORKING” phase, where the boiler will heat the
water inside to satisfy the heat requirements deriving from the plant.
The boiler works varying on 5 di erent power levels which cannot be adjusted as the adjustment
is automatic in relation to the set temperature set.
During the work phase the boiler works to reach the desired temperature decreasing the 5.
functioning power once nearing the set; if the temperature exceeds the set by at least 5°C (c.h. set +
5°C) the boiler switches o displaying “HOFF” (automatic switch-o ) and will wait for re-ignition until
the temperature has not decreased by at least 5°C below the set threshold (c.h. set - 5°C).
In the case of a request by the domestic hot water storage tank or the pu er, the boiler
uses di erent sets with respect to that set by the user.
The last phase is the switch-o , which can be realised through manual control, button 1(esc) for 3 seconds,
or through the weekly programmer.
The display shows “OFF” and the boiler stops de nitely when completely cooled o .
Button 4(-) allows to display the value read by the various probes which can be connected to the boiler.
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