elco VL 2.120 D, Руководство по эксплуатации

Страница: 18 / 28

11/2010 - Art. Nr. 4200 1029 8600A 18
Setting the 1st stage
If the flame has been detected and stabilised, the control unit sets the burner to the 1st stage as
soon as it receives the regulation authorisation.
- Adjust the fuel oil pressure for the 1st stage depending on the required output, using the
regulator 8 on the pump. Monitor the combustion values continuously as you do so (CO, CO
2
,
soot test). If necessary, adjust the dimension Y and/or adapt the airflow.
To do this, modify the position of the servomotor in 1st stage. Proceed as described on page 15,
in the paragraph
"Modifying the value of a servomotor position setting"
- Precautions: when modifying the setting value, the servomotor will move in real time. As a
consequence, the combustion values must be constantly checked.
Specific function: ignition checking
If the ignition position has been modified, it is possible to carry out a new burner start-up to check
the new ignition position, without having to quit the settings menu.
To do this, after modifying the ignition position, position the cursor on the symbol
, and initiate
the new start-up using the button .
Setting the opening position of the 2nd stage fuel oil valve
After the 1st stage is set, it is possible to set the opening value for the 2nd stage fuel oil valve.
Proceed as described in the paragraph "Modifying the value of a servomotor position
setting"
- Precautions: in this case the servomotor does not move immediately, but first remains in the 1st
stage position (the actual position of the servomotor is always displayed in the lower part of the
display). The 2nd stage valve also remains closed. Firstly it is possible to modify the position of
the 2nd stage air flap.
Setting the 2nd stage
To set the position of the air flap in the 2nd stage, position the cursor on the corresponding line
on the display using the button
. If necessary, modify the setting value. Proceed as described
in the paragraph "Modifying the value of a servomotor position setting" .
- To make the burner actually switch to the 2nd stage, press the button again. The servomotor
will then move the air flap to the set position. At the same time, the 2nd stage fuel oil valve will
open, as soon as the opening position set for the servomotor is passed.
- Adjust the fuel oil pressure for the 2nd stage depending on the required output, using the
regulator 9 on the pump. Monitor the combustion values continuously as you do so (CO, CO
2
,
soot test). If necessary, adjust the dimension Y and/or adapt the airflow.
To do this, modify the position of the servomotor in the 2nd stage. Proceed as described on page
15, in the paragraph
"Modifying the value of a servomotor position setting"
- Precautions: when modifying the setting value, the servomotor will move in real time. As a
consequence, the combustion values must be constantly checked.
Specific function: position the opening and closing of the 2nd stage fuel oil valve
differently
The control unit has the possibility of setting the opening of the 2nd stage valve, when the 1st
stage changes to the 2nd stage, at a different position to that for closing when the 2nd stage drops
to the 1st stage.
- To do this, as described before, first set the opening position of the 2nd stage fuel oil valve.
- Lastly position the cursor on the symbol
and confirm with the button . The selected symbol
will change like this one .
- Using the button , position the cursor on the setting value of the 2nd stage fuel oil valve, and
fix the new closure position, as described in the paragraph " Modifying the value of a
servomotor position setting" .
Commissioning
Setting the flame