Riello DB 12 LSE FGR Installation, Use And Maintenance Instructions page 4

5 Start-up, calibration and operation of the burner ..................................................................................................................26
5.1 Notes on safety for the first start-up ...........................................................................................................................26
5.2 Combustion head adjustment ....................................................................................................................................26
5.3 Adjustments prior to ignition (light oil) ........................................................................................................................26
5.3.1 Nozzle ........................................................................................................................................................................26
5.4 Burner ignition (light oil) .............................................................................................................................................27
5.5 Adjustments prior to ignition (gas) .............................................................................................................................27
5.6 Ignition pilot ................................................................................................................................................................28
5.7 Burner start-up (gas) ..................................................................................................................................................28
5.8 Burner ignition ............................................................................................................................................................28
5.9 Combustion air adjustment ........................................................................................................................................29
5.9.1 Air / gas adjustment and output modulation...............................................................................................................29
5.9.2 Pressure switch adjustment .......................................................................................................................................29
5.10 Final adjustment of the pressure switches .................................................................................................................30
5.10.1 Air pressure switch.....................................................................................................................................................30
5.10.2 Maximum gas pressure switch...................................................................................................................................30
5.10.3 Minimum gas pressure switch....................................................................................................................................30
5.10.4 Minimum oil pressure switch ......................................................................................................................................30
5.10.5 Maximum oil pressure switch .....................................................................................................................................30
5.11 Final checks (with burner operating) ..........................................................................................................................31
6 Maintenance ..............................................................................................................................................................................32
6.1 Notes on safety for the maintenance .........................................................................................................................32
6.2 Maintenance programme ...........................................................................................................................................32
6.2.1 Maintenance frequency..............................................................................................................................................32
6.2.2 Safety test - with no gas supply .................................................................................................................................32
6.2.3 Checking and cleaning...............................................................................................................................................32
6.2.4 Flame sensor removal ...............................................................................................................................................33
6.2.5 Safety components ....................................................................................................................................................33
6.3 Opening the burner ....................................................................................................................................................34
6.3.1 Access to head internal part ......................................................................................................................................34
6.4 Closing the burner......................................................................................................................................................34
7 Faults - Possible causes - Solutions.......................................................................................................................................35
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