Ecoflam BLU 500.1 PR Manual Del Usuario página 15

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LB1684 BLU 500.1 ÷ 1200.1 PR Low NOx
MAINTENANCE
ANNUAL CHECK
The burner (combustion head, electrodes, etc.) must be checked regularly by an authorized technician,
once or twice a year, depending on how much it is used. Before proceeding withe the maintenance check-
up on the burner, it is advisable to check the general condition of the burner and take the following steps:
Disconnect the burner (remove the plug).
- Close the gas shut-off cock.
- Remove the cover from the burner, clean the fan and air intake.
- Clean the combustion head and check the position of the electrodes.
- Re-install the parts.
- Check the seal on the gas connectors.
- Check the state of the flue.
- Start the burner.
- Check the combustion parameters
BEFORE TAKING ANY ACTION, CHECK:
- that there is power in the circit and the burner is connected;
- that the gas pressure is right and the gas shut-off cock is open;
- that the control systems are properly connected. If all these conditions have been satisfied, start the bur-
ner by pressing the reset button. Check the burner cycle.
IF THE BURNER FAILS TO START:
check the switch, the thermostats, the motor and the gas pressure.
IF THE BURNER PROCEEDS WITH PREVENTILATION BUT CUTS OUT AT THE END OF THE CYCLE:
check the air pressure and the fan. Check the air pressure switch.
IF THE BURNER PROCEEDS WITH PREVENTILATION BUT DOES NOT LIGHT:
check the installation and position of the electrodes. Check the ignition cable.
Check the ignition transformer. Check the safety device.
IF THE BURNER LIGHTS BUT CUTS OUT AFTER THE SAFETY INTERVAL:
check that the phase and neutral wires are connected correctly.
Check the gas solenoid valve. Check the position and connection of the detector electrode.
Check the detector electrode. Check the safety device.
IF THE BURNER LIGHTS BUT CUTS OUT AFTER OPERATING FOR A FEW MINUTES:
check the pressure regulator and gas filter. Check the gas pressure with a pressure gauge. Check the detec-
tor value (at least 3 µA).
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