Riello RS 310/EV O2 ULX Installation, Use And Maintenance Instructions page 4

5.3 Burner start-up ...........................................................................................................................................................30
5.4 Air / fuel adjustment ...................................................................................................................................................31
5.4.1 Air adjustment for maximum output ...........................................................................................................................31
5.4.2 Air/fuel adjustment and output modulation system ....................................................................................................31
5.4.3 Burner adjustment......................................................................................................................................................31
5.4.4 Output upon ignition ...................................................................................................................................................31
5.4.5 Maximum output ........................................................................................................................................................31
5.4.6 Minimum output .........................................................................................................................................................32
5.5 Final adjustment of the pressure switches .................................................................................................................32
5.5.1 Air pressure switch.....................................................................................................................................................32
5.5.2 Maximum gas pressure switch...................................................................................................................................33
5.5.3 Minimum gas pressure switch....................................................................................................................................33
5.5.4 PVP pressure switch kit .............................................................................................................................................33
5.6 Operation ...................................................................................................................................................................34
5.7 Ignition failure.............................................................................................................................................................34
5.8 Burner flame goes out during operation.....................................................................................................................34
5.9 Stopping of the burner ...............................................................................................................................................34
5.10 Final checks (with burner operating) ..........................................................................................................................34
5.11 Description of O2 trim control (optional) ....................................................................................................................35
5.11.1 Operating principle of O2 trim control ........................................................................................................................35
6 Maintenance ..............................................................................................................................................................................36
6.1 Notes on safety for the maintenance .........................................................................................................................36
6.2 Maintenance program ................................................................................................................................................36
6.2.1 Maintenance frequency..............................................................................................................................................36
6.2.2 Safety test - with gas ball valve closed ......................................................................................................................36
6.2.3 Checking and cleaning...............................................................................................................................................36
6.2.4 Safety components ....................................................................................................................................................37
6.2.5 Measuring the ionisation current ................................................................................................................................37
6.2.6 Checking the air and gas pressure on the combustion head .....................................................................................37
6.3 Checking the position of the rpm sensor....................................................................................................................38
6.4 Opening the burner ....................................................................................................................................................38
6.5 Closing the burner......................................................................................................................................................38
A Appendix - Accessories ...........................................................................................................................................................39
B Appendix - Electrical panel layout...........................................................................................................................................41
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Contents
2 GB