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56-EN
Operation and maintenance manual - EN
•
Parameter S7 – Function of the main external pellet conveyor – do not change in any case ... (1)
if:
a) S7 = 1….. Standard function when in the START mode the external conveyor supplies the ignition
amount of fuel during time T1, when it runs continuously.
In the RUN mode the external conveyor doses fuel by alternating times T4 (run) and T6 (standstill).
• Parameter S10 – Specifies the behaviour of the burner in case of a power supply failure or when
the boiler is activated with the main switch – do not change in any case… (1)
a) S10 = 1… Function when after a power supply failure the electronic control unit tests the status
of the burner, evaluating with the use of the photocell or by means of the flue gas temperature that
the burner (boiler) is still burning. Subsequently, it first passes into the burning out mode T5
after which it proceeds to the new START immediately.
b) S10=2… Function when after a power supply failure the electronic control unit tests the status
of the burner, evaluating with the use of the photocell or by means of the flue gas temperature that
the burner (boiler) is still burning passes over directly to the normal RUN mode in accordance
with a certain algorithm.
CAUTION - Never use for the A25 burner - function for other types of devices (danger
of return burning)
• Parameter S11
– Photocell sensitivity – threshold for fuel ignition ……. (50 %) - do not change
• Parameter S12 – Photocell sensitivity for flame sensing - threshold for embers... (1 %) - do not change
• Parameter S13 – Fixed running time of the ignition spiral ……. (0 min) - do not change
Function of the ignition spiral when at every start the ignition spiral runs for a fixed time defined
by a direct value, independently on flame evaluation by the photocell or flue gas sensor. It is
designed for special applications and in the case of its activation the function of automatic flame
sensing from embers, characterized by parameter S12, is automatically switched off.
• Parameter S14 – characterizes the second reserve R2 - additional output - function … (0)
The second reserve R2 is used mainly for controlling the pump in boiler circuit (S14 = 13)
CAUTION – In the standard setting when parameter S1 is set to 2, you can connect to the
reserve
R, R2, R5 and R6
reserve terminal an appliance with the maximum current of 2.46
A (approx. 566 VA).
In the setting when parameter S1 is set to 4, which means that at the start both the ignition
spirals are activated simultaneously, you can connect to the reserve
R, R2, R5 and R6
terminal an applian¬ce with the maximum current of 0.29 A (approx. 67 VA).
if:
a) S14 = 1…. If any fault occurs in the burner and the burner is shut down, the reserve relay will
be closed and the reserve output will be energized. Thanks to this you can start a spare source
of energy for heating of the building as e.g. a gas, electric or oil boiler.
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