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Control box
e relative
programmer
LAL 1.25
Cyclic relay
IGNITION AND REGULATION
For ignition proceed as follows:
1)
Remove the thermostat connection, if there is one, in order to
avoid insertion of the 2
flame.
nd
2)
Open slightly the air regulator (see 8653/1) to allow a flow of
air presumed adequate for burner operations with the 1
and block it in this position. Set the air regulation device on the
combustion head in an intermediate position (see Chapter "Air
Regulation on the Combustion Head").
3)
Connect the main switch and the control box switch in the
control panel
4)
The control box will start functioning and will connect the
burner component devices according to its pre-established
programme. The unit starts up in this way, as described in the
Chapter "Description of Operations".
5)
When the burner is operating with the 1
regulating the amount of air required for good combustion
(see 8653/1). It is preferable that the quantity of air for the 1
flame is slightly reduced, in order to ensure soft ignition even
in the most critical conditions.
LAYOUT DIAGRAM OF NOZZLE - ELECTRODES - DISK
MOD.
BT 250 DSG-4T
BT 300 DSG-4T
All manuals and user guides at all-guides.com
CONTROL BOX SPECIFICATIONS
Pre-ventilation &
Safety time
in seconds
pre-washing time
in seconds
5
flame
st
flame, proceed with
st
A
2
2
0006081081_200907
Post-ignition time
in seconds
22,5
15
6)
After regulating air for the 1
necting the main switch, connect the terminals of 4-pole plug
for the 2
flame thermostat and settle (3) the 1
nd
switch in 2
stage position.
nd
7)
Regulate the combustion air for the 2
8653/1).
8)
Now turn on the unit again. It should start up and pass auto-
matically to the 2
flame according to its pre- established.
nd
9)
With the burner operating at 2
(see BT 8653/1) the amount of air required to guarantee good
combustion.
REGULATING THE DISTANCE BETWEEN THE DISK
AND THE NOZZLE (see 0002935040)
The burners are provided with a device which permits a variation
in the distance between the disk and the nozzle. The distance
betweenthe disk and the nozzle has already been set by the
st
manufacturer and should be reduced if the atomized fuel cone in
exit from the nozzle wets the disk and fouls it up.
B
C
D
21
23
2÷3
21
23
2÷3
13 / 20
Time between 1st
and 2nd flame
in seconds
7,5
flame stop the burner, by discon-
st
and 2
stage
st
nd
flame (see BT
nd
flame, proceed with regulating
nd
N° 0002935040
REV.: 26/09/2006
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