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4.3.2 Startup stage
To light the boiler, press the button 'P4' for 3 seconds: the message 'START' will appear on the display.
This stage is automatic and managed entirely by the electronic controller without the possibility of changing the
parameters.
Alternatively the boiler can be lit by pressing the buttons P4 and P5 together for 3 seconds. The message
AWAITING REQUEST appears on the display. With this mode the boiler switches to standby status and carries out
the lighting-start stage only if a request for heat is recognised, e.g. to heat the water or for DHW (if available).
Dialogue box
The boiler carries out the startup stages in sequence according to the procedures defined by the parameters that
manage levels and times, reaching the work condition unless anomalies or alarms occur, according to the following
table:
status
duration
OFF
START - PREHEAT
40 sec.
PELLET PRELOAD
Pr40
AWAITING FLAME
Pr41
PELLET LOADING
FIRE PRESENT
Pr02
WORK
WORK MODULATE
BRAZIER CLEANING
Pr12
WORK
FINAL CLEANING
Pr39 (*)
After a certain time has elapsed, if the fume temperature has not reached the permissible minimum value the boiler
goes in alarm status.
- Do not use flammable liquids to light the unit.
- In case of persistent failed lighting, contact the Service Centre.
All manuals and user guides at all-guides.com
Clock
Water temperature
devices
Fume
igniter
auger
extr.
-
OFF
OFF
OFF
ON
ON
OFF
ON
ON
ON
ON
ON
OFF
-
ON
ON
ON
OFF
ON
ON
-
OFF
ON
ON
-
OFF
ON
ON
OFF
ON
ON
-
OFF
ON
ON
OFF
ON
OFF
Storage tank-Puffer H
0
2
temperature
Button 'P4'
conditions for going to next status
exch.
OFF
ON/OFF
OFF
time elapsed 40 sec.
OFF
time elapsed Pr40
OFF
time elapsed Pr41
OFF
fume temperature > Pr13
ON
time elapsed Pr02
ambient temperature < SET temperature fume
ON
temperature < Pr14
ambient temperature < SET temperature water
ON
temperature > water SET fume temperature < Pr14
ON
with frequency Pr03
ON
ON/OFF to switch off
-
(*) Pr39 starts when Tfumes < Pr13
53
DOMUSFIRE C17-C24
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