13
420010264900
Maior P 300/400 PR
EN
Use only the suitable box wrench pro-
vided for this operation to remove the
nozzle, taking care to not damage the
electrodes.
Fit the new nozzle with the same care.
Note: Always check the position of
electrodes after having replaced the
nozzle (see illustration). A wrong
position could cause ignition troubles.
NOZZLE CLEANING AND REPLACEMENT
5
÷
6 mm
3
÷
4 mm
LANDIS SQM 50.481A2
Remove cover to gain access to the adjusting cams. The cams are to be adjusted through the suitable key pro-
vided . Description:
I
- Limit switch for air damper “High Flame” position adjustment.
II
- Limit switch for the air damper position at burner’s shut down.
III
- Limit switch for ignition flame “Min power” position adjustment.
IV
- Limit switch for air damper “Low Flame” position adjustment.
V
- Limit switch “NOT USED”
VI
- Limit switch “NOT USED”
VII - Limit switch “NOT USED”.
VIII - Limit switch “NOT USED”.
COMBUSTION AIR FLOW ADJUSTMENT
DESCRIPTION OF THE CONTROL PANEL OF THE BURNER
A
B
C
E
D
F
0
AUTO
0
I
A - selector :
0 = operating elements locked in an
intermediate position
1 = operation on maximum capacity
2 = operation on minimum capacity
3 = automatic operation
B - working lamp
C - termal lock-out lamp
D - fuse
E - main switch I / O
F - reset key
