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7.3
Adjustments prior to ignition (gas) .............................................................................................................................21
7.4
Burner start-up (gas) ..................................................................................................................................................22
7.5
Ignition pilot burner ....................................................................................................................................................22
7.6
Burner ignition ............................................................................................................................................................22
7.7
Servomotor adjustment ..............................................................................................................................................22
7.8
Air/fuel adjustment .....................................................................................................................................................23
7.9
Pressure switch adjustment .......................................................................................................................................24
7.9.1
Air pressure switch.....................................................................................................................................................24
7.9.2
Maximum gas pressure switch...................................................................................................................................24
7.9.3
Minimum gas pressure switch....................................................................................................................................24
7.10
Final checks (with burner operating) ..........................................................................................................................25
8
Maintenance ..............................................................................................................................................................................26
8.1
Notes on safety for the maintenance .........................................................................................................................26
8.2
Maintenance programme ...........................................................................................................................................26
8.2.1
Maintenance frequency..............................................................................................................................................26
8.2.2
Checking and cleaning...............................................................................................................................................26
8.3
Opening the burner ....................................................................................................................................................27
8.4
Access to head internal part ......................................................................................................................................27
8.5
Ignition pilot burner ....................................................................................................................................................27
8.6
Replacing the shutter .................................................................................................................................................28
8.7
Dismantling the UV photocell .....................................................................................................................................28
8.8
Closing the burner......................................................................................................................................................28
9
Faults - Possible causes - Solutions.......................................................................................................................................29
10
Accessories ...............................................................................................................................................................................30
20111775
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