35
Summary:
The ignition cycle can last max 25 minutes and is divided into four phases:
1 - START
:
Flue gas intake device ignition
duration 40 seconds
2 - P-LOAD PELLET
:
Pellet pre-load (initial continuous load) and resistance
ignition
Pr40 = pre-load time in ignition
3 - FLAME STAND-BY
:
pellet load (intermittent load) and functioning resistance
Pr01
– Pr40 = ignition cycle maximum time – pre-load time in
Ignition
4 - FIRE PRESENT
:
Resistance switch-off and flame stabilising
Pr02 = start time
The boiler goes to work phase at power set in ignition using buttons 1 and 2 after ignition cycle.
Boiler work phases
A
“SET H20”
(maximum temperature of water in boiler) can be set by pressing key 1 during work phase.
Boiler enters Functioning Economy
“T-H2O ECONOMY”
when reached.
Before reaching temperature set on
“SET H20”
, the boiler starts modulating power by decreasing pellet
intake and reducing flue gas intake speed 5°C.
Example:
“SET H2O”
set at 75 °C
Work power set at 5
- The work power automatically changes to 4 upon reaching 71 °C.
- The work power automatically changes to 3 upon reaching 72 °C.
- The work power automatically changes to 2 upon reaching 73 °C.
- The work power automatically changes to 1 upon reaching 74 °C.
- The work power automatically changes to Functioning economy upon reaching 75 °C.
“T-H2O ECONOMY”.
The boiler now automatically switches off if at least one of the following conditions exists:
If it remains in Functioning Economy
“T-H2O ECONOMY”
for a time set on Pr44 (30 minute default
setting).
If it exceeds the temperature differential set on Pr43 (factory set value 5 °C) that is
H2O Temperature >
(
“SET H2O”
+ Pr43).
With the following condition the boiler automatically ignites:
If it drops below temperature differential set on Pr43 (5 °C default setting) or
Temperature H2O < (
“SET
H2O”
– Pr43).
If the above-mentioned condition occurs when the boiler is still carrying out the switch off cycle, it is required
to wait until it ends.
Brazier is cleaned at pre-set time intervals (indicated on display with
“BRAZIER CLEANING”
) for an
established duration (see parameters table)
Summary of Contents for pellet boiler 24
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