Ecoflam MINOR 20 Manual Del Usuario página 10

B
LB373 Minor 20/30
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Use only the suitable box wrench provided for this operation to remove the nozzle, taking care to not damage
the electrodes. Fit the new nozzle by the same care.
Note: Always check the position of electrodes after having replaced the nozzle (see illustration). A wrong posi-
tion could cause ignition troubles.
3,5 mm
Once having installed the burner, check the following items:
- The burner power feeding and the main line protection fuses
- The correct length of pipes and that sames are sealed.
- The type of fuel, which must be suitable for burner.
- The connection of boiler's thermostats and all safeties.
- The motor direction of rotation.
- The correct calibration of the motor's thermal protection.
When all said conditions are checked and accomplished, it is possible to go on with burner's tests.
Power the burner. The control box feeds at the same time the ignition transformer and the burner's motor, which
will run a prepurging of the combustion chamber for about 13 seconds (20 seconds with Brahma control box). At
the end of prepurging, the control box opens the fuel pump solenoid valve, 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. In case of faulty ignition, the control box switches the burner into safety condition
within 10 secs. In such a case, the manual rearming of the burner shall not take place before 30 seconds are ela-
psed from the burner's safety shutdown. The fuel pump feeding pressure, must keep around 12 bar.
Note: With preheated version, the burner runs a preheating of the combustion head for about 1 minute. In such a
case, at the boiler's thermostats make, the ignition signal shall be done by the thermostat mounted on the prehea-
ter itself.
DELTA
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2 3
NOZZLE CLEANING AND REPLACEMENT
6 mm
BURNER START-UP AND ADJUSMENT
FROM ONE-PIPE TO TWO-PIPE SYSTEM
DELTA VM1RL1 remove the plug, introduce by-
pass plug to outfit for two pipe installation.
1 - HOSE
2 - OIL FILTER
3 - OIL COCK
5
4 - PLUG
5 - BY-PASS PLUG (supplied with the burner)
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