5.6
Pressure switch adjustment .......................................................................................................................................27
5.6.1
Air pressure switch.....................................................................................................................................................27
5.6.2
Minimum gas pressure switch....................................................................................................................................27
5.6.3
Flame presence check ...............................................................................................................................................27
5.7
Servomotor adjustment ..............................................................................................................................................28
5.8
Burner operation ........................................................................................................................................................29
5.8.1
Burner start-up ...........................................................................................................................................................29
5.8.2
5.8.3
Ignition failure.............................................................................................................................................................29
5.9
5.9.1
5.9.2
Control box reset........................................................................................................................................................30
5.9.3
Visual diagnostics ......................................................................................................................................................30
5.9.4
Software diagnostics ..................................................................................................................................................30
6
Maintenance ..............................................................................................................................................................................31
6.1
6.2
Maintenance programme ...........................................................................................................................................31
6.2.1
Maintenance frequency..............................................................................................................................................31
6.2.2
Safety test - with no gas supply .................................................................................................................................31
6.2.3
Checking and cleaning...............................................................................................................................................31
6.2.4
Combustion control (gas) ...........................................................................................................................................32
6.2.5
Safety components ....................................................................................................................................................32
6.3
Opening the burner ....................................................................................................................................................33
6.4
Closing the burner......................................................................................................................................................33
7
Appendix - Accessories ...........................................................................................................................................................36
Appendix - Electrical panel layout...........................................................................................................................................37
20191684
Contents
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