Function
- Landis LGB22 control and safety unit
The Landis control box starts the fan and begins the pre-purging of the combustion chamber. The air pressure switch controls the correct
operation. At the end of the pre-purging phase, the ignition transformer cuts-in followed by the opening of the gas valves. In case of
missed ignition or accidental shutdown, the ionisation probe cuts-in and set the burner in lockout mode within the safety time.
Gas pressure swi ch
Mo or
Air pressure swi ch
Transformer
Gas valve
High flame ON/OFF
Flame de ec ion
Lock ou
!
Always disconnect the power supply before installing or removing the control unit Do not attempt to open or carry out repairs on
the control unit.
Function
- Control panel
F
420010568500
2
3
1
lamp
AUTO
0
I
0
4
Description
1
pressure swi ch con rol ime-ou
2
ime-ou for air pressure confirma ion
5
3
prewashing ime
4
safe y ime
6
5
preigni ion ime
6
ime-ou
A - selector :
A
B
0 = operating elements locked in an
intermediate position
C
D
1 = operation on maximum capacity
2 = operation on minimum capacity
E
3 = automatic operation
B - working lamp
C - termal lock-out lamp
D - fuse
E - main switch I / O
F - reset key
9"
3"
30"
3"
3"
o enable fuel 2nd valve
8"
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EN
9