Ecoflam MAIOR P 300.1 AB Manual Del Usuario página 13

tests. Power the burner. The control box feeds the ignition transformer and the burner's motor at the same
time, which will run a prepurging of the combustion chamber for about 20 sec.
At the end of prepurging, the control box opens the fuel pump and the 1st stage (Low flame) solenoid valves,
the ignition transformer produces a spark and the burner ignites. After a safety interval of 5 seconds and a
correct ignition, the control box turns off the ignition transformer and, 10 seconds later, sets the motorised
air damper to its maximum opening and opens the 2nd stage solenoid valve (Maior 300.1) and 3rd stage sole-
noid valve (Maior 400.1) (High flame). In case of faulty ignition, the control box switches the burner into
safety condition. In such a case, the manual rearming of the burner shall not take place before 30 seconds
have elapsed from the burner's safety shutdown. In order to obtain an optimal combustion, it is necessary
adjust the LOW - HIGH flame air flow, according to the instruction given further on. During such a phase,
it will be possible to manually switch between HIGH ( II ) and LOW ( I ) flame and viceversa, through the
High/Low flame switch. At the end of the adjusting phase, leave the switch in position II (HIGH flame).
The fuel pump feeding pressure, must remain around 12 bar.
In case of burner lockout, it is possible to read which cause originated it. Proceed as follows: with the burner
in lockout mode (red LED switched on) keep pressed the lockout button for more than 3 sec. then release it.
The red LED will blink according to the following error code list:
Error Code
2 blinks
3 blinks
4 blinks
5 blinks
6 blinks
7 blinks
8 blinks
9 blinks
10 blinks
LANDIS LMO 44 CONTROL INFORMATION SYSTEM
Possible cause
No establishment of flame at the end of «TSA»
- Faulty or soiled fuel valves - Faulty or soiled flame detector - Poor adjustment of burner,
no fuel - Faulty ignition
Free
Extraneous light on burner start-up
Free
Free
Too many losses of flame during operation (limitation of the number of repetitions)
- Faulty or soiled fuel valves - Faulty or soiled flame detector - Poor adjustment of burner
Time supervision oil pre-heater
Free
Wiring error or internal error, output contacts
FIRING HEAD SETTING
LB771 Maior P 300.1/400.1 AB
pag.13
B