pag.7
LB1292
MULTIFLAM 500.1 PR - 600.1 PR
techniques for energy saving
REMOVING THE FIRING HEAD
+
-
SETTING THE FIRING HEAD
ADJUSTING THE MAXIMUM AIR FLOW RATE
Adjusting the maximum air flow rate (see figure, detail 2). Loosen the nut holding the air damper transmission rod;
The correct air flow as established by analyzing the combustion process.
ADJUSTING THE INTERMEDIATE BURNER CAPACITY
Using the selector, start the servomotor (closing or opening) and position on 0 to stop the stroke; the adjustment is
made as outlined below. Repeat the operation for the other cam points.
Adjustment the intermediate gas flow rates (see figure, detail 3):
- using a suitable Allen wrench, change the position of the cam guide blade; if you screw it down, the flow rate is
reduced; if you unscrew it, the flow rate increases.
The ionization current is checked by inserting a
microammeter with an end of scale of 50 µA (d.c.)
in series with the ionization probe.
A faulty position of the electrode can lead to a
reduction in the ionization current and cause a
safety cut-out of the burner due to a flame detec-
tion failure. In this case, check the position of the
electrode, its electric connection and the earthing of the burner. The ionization current is normally > 20 µA.
IONIZATION CURRENT
22 23
LANDIS
LFL 1.622
Fotocellula
min 70
µ
A
Microamperometro
fondo scala 1000
µ
A
PHOTORESISTOR
Microamperometer
full scale 1000 µA
