Riello RS 70/M Quick start guide

20160778 (6) - 03/2022
Installation, use and maintenance instructions
Forced draught gas burners
Low-high-low or modulating operation
CODE MODEL
20166044 RS 70/M
20166045 RS 70/M
20166046 RS 70/M
20166047 RS 100/M
20166048 RS 100/M
20166049 RS 100/M
20166101 RS 130/M
20166102 RS 130/M
20166103 RS 130/M
GB

Original instructions

1 20160778
GB
Contents
1 Information and general instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Information about the instruction manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.2 General dangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.3 Other symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.4 Delivery of the system and the instruction manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Guarantee and responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Safety and prevention. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Personnel training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Technical description of the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Burner models designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Electrical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Burner dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Standard equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.6 Firing rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.6.1 Procedure to refer burner operating condition at an altitude and/or at a combustion supporter air temperature
different to the standard values (328 ft above sea level, 68 °F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.7 Minimum furnace dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.8 Burner description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.9 RFGO-A13 control box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.10 Servomotor SQM41 ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Notes on safety for the installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Preliminary checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4 Preparing the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4.1 Boiler plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4.2 Blast tube length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5 Combustion head calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.6 Securing the burner to the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.7 Combustion head setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.7.1 Air adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.7.2 Gas adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.8 Ignition pilot adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.8.1 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.9 Gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.9.1 Gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.9.2 Gas train. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.9.3 Gas pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.10 Electrical wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.10.1 Notes on terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.10.2 Supply cables and external connections passage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.11 Thermal relay calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.11.1 Electro-mechanical thermal relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.11.2 Electronic thermal relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.12 Motor connection at 208-230 or 460V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.13 Motor connection at 575V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.14 Reversible direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.15 Burner operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.15.1 Burner starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.15.2 Steady state operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.15.3 Firing failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

20160778 2
GB
Contents
4.15.4 Burner flame goes out during operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5 Start-up, calibration and operation of the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.1 Notes on safety for the first start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.2 Adjustments before first firing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.3 Servomotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.4 Servomotor adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.4.1 Disengage the gears of the servomotor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.4.2 Cams adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.4.3 Servomotor positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.5 Burner start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.6 Final calibration of the pressure switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.6.1 Air pressure switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.6.2 Maximum gas pressure switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.6.3 Minimum gas pressure switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.7 Burner firing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.8 Burner calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.8.1 Firing output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.8.2 Maximum burner output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.8.3 Minimum burner output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.8.4 Intermediate outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.9 TRIM potentiometers functions calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.9.1 Range Adjustment range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.10 Final checks (with the burner working) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.1 Notes on safety for the maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2 Maintenance programme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2.1 Maintenance frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2.2 Safety test - with gas ball valve closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2.3 Checking and cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2.4 Flame presence check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2.5 Safety components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.3 Opening the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4 Closing the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7 LED indicator and special function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.1 Description of LED lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.2 Check mode function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.3 Flame control lock-out or emergency stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.4 LED lamps: burner operating status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8 Problems - Causes - Remedies signalled by LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
A Appendix - Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
B Appendix - Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
C Appendix - Burner start up report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Information and general instructions
3 20160778
GB
1.1 Information about the instruction manual
1.1.1 Introduction
The instruction manual supplied with the burner:
is an integral and essential part of the product and must not be
separated from it; it must therefore be kept carefully for any
necessary consultation and must accompany the burner even
if it is transferred to another owner or user, or to another sys-
tem. If the manual is lost or damaged, another copy must be
requested from the Technical Assistance Service of the area;
is designed for use by qualified personnel;
offers important indications and instructions relating to the
installation safety, start-up, use and maintenance of the
burner.
Symbols used in the manual
In some parts of the manual you will see triangular DANGER signs.
Pay great attention to these, as they indicate a situation of potential
danger.
1.1.2 General dangers
The dangers can be of 3 levels, as indicated below.
1.1.3 Other symbols
Abbreviations used
Ch. Chapter
Fig. Figure
Page Page
Sec. Section
Tab. Table
1 Information and general instructions
DANGER
Maximum danger level!
This symbol indicates operations which, if not car-
ried out correctly, cause serious injury, death or
long-term health risks.
WARNING
This symbol indicates operations which, if not car-
ried out correctly, may cause serious injury, death
or long-term health risks.
CAUTION
This symbol indicates operations which, if not car-
ried out correctly, may cause damage to the ma-
chine and/or injury to people.
DANGER
DANGER: LIVE COMPONENTS
This symbol indicates operations which, if not car-
ried out correctly, lead to electric shocks with lethal
consequences.
DANGER: FLAMMABLE MATERIAL
This symbol indicates the presence of flammable
materials.
DANGER: BURNING
This symbol indicates the risks of burns due to high
temperatures.
DANGER: CRUSHING OF LIMBS
This symbol indicates the presence of moving
parts: danger of crushing of limbs.
WARNING: MOVING PARTS
This symbol indicates that you must keep limbs
away from moving mechanical parts; danger of
crushing.
DANGER: EXPLOSION
This symbol signals places where an explosive at-
mosphere may be present. An explosive atmos-
phere is defined as a mixture - under atmospheric
conditions - of air and flammable substances in the
form of gases, vapours, mist or dust in which, after
ignition has occurred, combustion spreads to the
entire unburned mixture.
PERSONAL PROTECTION EQUIPMENT
These symbols indicate the equipment that must be
worn and kept by the operator for protection against
threats against safety and/or health while at work.
OBLIGATION TO ASSEMBLE THE HOOD AND
ALL THE SAFETY AND PROTECTION DEVICES
This symbol signals the obligation to reassemble
the hood and all the safety and protection devices
of the burner after any maintenance, cleaning or
checking operations.
ENVIRONMENTAL PROTECTION
This symbol gives indications for the use of the ma-
chine with respect for the environment.
IMPORTANT INFORMATION
This symbol indicates important information that
you must bear in mind.
This symbol indicates a list.

20160778 4
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Information and general instructions
1.1.4 Delivery of the system and the instruction
manual
When the system is delivered, it is important that:
the instruction manual is delivered to the user by the system
manufacturer, with the recommendation to keep it in the room
where the heat generator is to be installed.
The instruction manual shows:
– the serial number of the burner;
– the address and telephone number of the nearest Assis-
tance Centre.
The system supplier must carefully inform the user about:
– the use of the system;
– any further tests that may be required before activating the
system;
– maintenance, and the need to have the system checked at
least once a year by a representative of the manufacturer or
another specialised technician.
To ensure a periodic check, the manufacturer recommends
the drawing up of a Maintenance Contract.
1.2 Guarantee and responsibility
The manufacturer guarantees its new products from the installation
date, in accordance with the regulations in force and/or the sales
contract. At the moment of the first start-up, check that the burner
is integral and complete.
In particular, the rights to the guarantee and the responsibility will
no longer be valid, in the event of damage to things or injury to peo-
ple, if such damage/injury was due to any of the following causes:
incorrect installation, start-up, use and maintenance of the
burner;
improper, incorrect or unreasonable use of the burner;
intervention of unqualified personnel;
carrying out of unauthorised modifications on the equipment;
use of the burner with safety devices that are faulty, incorrectly
applied and/or not working;
installation of untested supplementary components on the
burner;
powering of the burner with unsuitable fuels;
faults in the fuel supply system;
use of the burner even following an error and/or an irregularity;
repairs and/or overhauls incorrectly carried out;
modification of the combustion chamber with inserts that pre-
vent the regular development of the structurally established
flame;
insufficient and inappropriate surveillance and care of those
burner components most likely to be subject to wear and tear;
the use of non-original components, including spare parts,
kits, accessories and optional;
force majeure.
The manufacturer furthermore declines any and every respon-
sibility for the failure to observe the contents of this manual.
.........................................................................................
............................................................................................
............................................................................................
...................................................................................
WARNING
Failure to observe the information given in this
manual, operating negligence, incorrect installation
and carrying out of non authorised modifications
will result in the annulment by the manufacturer of
the guarantee that it supplies with the burner.

Safety and prevention
5 20160778
GB
2.1 Introduction
The burners have been designed and built in compliance with cur-
rent regulations and directives, applying the known technical rules
of safety and envisaging all the potential danger situations.
It is necessary, however, to bear in mind that the imprudent and
clumsy use of the equipment may lead to situations of death risk for
the user or third parties, as well as the damaging of the burner or
other items. Inattention, thoughtlessness and excessive confi-
dence often cause accidents; the same applies to tiredness and
sleepiness.
It is a good idea to remember the following:
The burner must only be used as expressly described. Any
other use should be considered improper and therefore dan-
gerous.
In particular:
it can be applied to boilers operating with water, steam, diathermic
oil, and to other uses expressly named by the manufacturer;
the type and pressure of the fuel, the voltage and frequency of the
electrical power supply, the minimum and maximum deliveries for
which the burner has been regulated, the pressurisation of the
combustion chamber, the dimensions of the combustion chamber
and the room temperature must all be within the values indicated in
the instruction manual.
Modification of the burner to alter its performance and destina-
tions is not allowed.
The burner must be used in exemplary technical safety condi-
tions. Any disturbances that could compromise safety must be
quickly eliminated.
Opening or tampering with the burner components is not
allowed, apart from the parts requiring maintenance.
Only those parts envisaged by the manufacturer can be
replaced.
2.2 Personnel training
The user is the person, body or company that has acquired the ma-
chine and intends to use it for the specific purpose. He is responsi-
ble for the machine and for the training of the people working
around it.
The user:
undertakes to entrust the machine exclusively to suitably
trained and qualified personnel;
undertakes to inform his personnel in a suitable way about the
application and observance of the safety instructions. With
that aim, he undertakes to ensure that everyone knows the
use and safety instructions for his own duties;
Personnel must observe all the danger and caution indications
shown on the machine.
Personnel must not carry out, on their own initiative, opera-
tions or interventions that are not within their province.
Personnel must inform their superiors of every problem or
dangerous situation that may arise.
The assembly of parts of other makes, or any modifications,
can alter the characteristics of the machine and hence com-
promise operating safety. The manufacturer therefore declines
any and every responsibility for any damage that may be
caused by the use of non-original parts.
In addition:
2 Safety and prevention
WARNING
The manufacturer guarantees safety and proper
functioning only if all burner components are intact
and positioned correctly.
the user must take all the measures necessary
to prevent unauthorised people gaining access
to the machine;
the user must inform the manufacturer if faults
or malfunctioning of the accident prevention
systems are noticed, along with any presumed
danger situation.
Personnel must always use the personal pro-
tective equipment envisaged by legislation and
follow the indications given in this manual.

20160778 6
GB
Technical description of the burner
3.1 Burner models designation
Tab. A
3.2 Technical data
Tab. B
(1) Reference conditions: ambient temperature 68 °F (20°C) - Barometric pressure 394” WC - Altitude 329 ft.
(2) Pressure at test point 16)(Fig. 4, page 12) with zero pressure in the combustion chamber and maximum burner output.
(3) Sound pressure measured in manufacturer’s combustion laboratory, with burner operating on test boiler and at maximum rated output.
3 Technical description of the burner
Model Riello Code RBNA Code Voltage Flame safeguard
RS 70/M TC FS1 20160208 20166044 208-230/3/60 Burner mounted20166045 460/3/60
20160227 20166046 575/3/60
RS 100/M TC FS1 20160233 20166047 208-230/3/60 Burner mounted20166048 460/3/60
20160238 20166049 575/3/60
RS 130/M TC FS1 20160253 20166101 208-230/3/60 Burner mounted20166102 460/3/60
20160256 20166103 575/3/60
Model RS 70/M RS 100/M RS 130/M
Output (1) High MBtu/hr
kW
1761 - 3084
516 - 904
2644 - 4405
775 - 1291
3521 - 5545
1032 - 1625
Low MBtu/hr
kW
512
150
570
167
607
178
Fuel Natural or propane gas
- Max. delivery SCFH 3084 4405 5545
- Pressure at max. delivery (2) “WC 4.06 3.66 3.20
Operation Low - High or modulating
Standard applications Boilers: water, steam, thermal oil
Ambient temperature °F 32 - 104 (0 - 40 °c)
Combustion air temperature °F max 140 (60 °c)
Noise levels (3) dB(A) 75 77 78.5
Weight (complete with packaging) lbs 154 161 168

Technical description of the burner
7 20160778
GB
3.3 Electrical data
Model RS 70/M RS 100/M RS 130/M
Control circuit power supply V/Ph/Hz 120/1/60
Main electrical supply (+/- 10%) V/Ph/Hz 208-220/3/60
Fan motor IE3/EPACT rpm
HP - kW
V
A
3500
1.5 - 1.1
208-230
4
3500
3 - 2.2
208-230
7.4
3500
3 - 2.2
208-230
7.4
Ignition transformer V1 - V2
I1 - I2
120 V - 1 X 8 kV
1.6 A - 20 mA
Electrical power consumption W max 1291 2565 2565
Electrical control circuit coms. W750
Total electrical consumption W2041 3315 3315
Electrical protection NEMA 1
Main electrical power supply
Minimum Circuit Ampacity (MCA) A 5 9.25 9.25
Maximum rating of overcurrent
protective device (MOP) A 9 16.65 16.65
Control circuit power supply
Minimum Circuit Ampacity (MCA)
A6.3
Maximum rating of overcurrent
protective device (MOP)
Model RS 70/M RS 100/M RS 130/M
Control circuit power supply V/Ph/Hz 120/1/60
Main electrical supply (+/- 10%) V/Ph/Hz 460/3/60
Fan motor IE3/EPACT rpm
HP - kW
V
A
3500
1.5
460
2
3500
3
460
3.7
3500
3
460
3.7
Ignition transformer V1 - V2
I1 - I2
120 V - 1 X 8 kV
1.6 A - 20 mA
Electrical power consumption W max 1291 2565 2565
Electrical control circuit coms. W750
Total electrical consumption W2041 3315 3315
Electrical protection NEMA 1
Main electrical power supply
Minimum Circuit Ampacity (MCA) A2.5 4.6 4.6
Maximum rating of overcurrent
protective device (MOP)
A4.5 8.3 8.3
Control circuit power supply
Minimum Circuit Ampacity (MCA)
A6.3
Maximum rating of overcurrent
protective device (MOP)

20160778 8
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Technical description of the burner
Tab. C
Model RS 70/M RS 100/M RS 130/M
Control circuit power supply V/Ph/Hz 120/1/60
Main electrical supply (+/- 10%) V/Ph/Hz 575/3/60
Fan motor IE3/EPACT rpm
HP - kW
V
A
3500
1.5 - 1.1
575
1.6
3500
3 - 2.2
575
3
3500
3 - 2.2
575
3
Ignition transformer V1 - V2
I1 - I2
120 V - 1 X 8 kV
1.6 A - 20 mA
Electrical power consumption W max 1275 2510 2510
Electrical control circuit coms. W750
Total electrical consumption W2025 3260 3260
Electrical protection NEMA 1
Main electrical power supply
Minimum Circuit Ampacity (MCA) A 2 3.75 3.75
Maximum rating of overcurrent
protective device (MOP) A3.60 6.75 6.75
Control circuit power supply
Minimum Circuit Ampacity (MCA)
A6.3
Maximum rating of overcurrent
protective device (MOP)

Technical description of the burner
9 20160778
GB
3.4 Burner dimensions
The maximum dimensions of the burners are given in Tab. D.
Bear in mind that inspection of the combustion head requires the
burner to be opened by withdrawing the rear part on the slide bars.
The maximum dimension of the burner, when open, is give by
measurement I.
Tab. D
(1) Blast tube: short - long (obtainable with the kit)
3.5 Standard equipment
Gas train flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .No. 1
Flange fixing screws M10x40 . . . . . . . . . . . . . . . . . . . . . . . . .No. 6
Connector for gas pilot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .No. 1
Instruction booklet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
P
B
C
T
D
F
N
E
V
L
M
G
H
Fig. 1
20161124
inch L G M H P T(1) DE V(1) BCNF
RS 70/M 20” 11 11/32“8 1/2“23 11/32“33” 10” - 15 1/4“7” 16 3/4“46 1/4“ - 51 1/2“8 5/16“55/8“8 3/4“2”
RS 100/M 21 1/4“12 3/4“8 1/2“23 11/32“33” 10” - 15 1/4“7” 16 3/4“46 1/4“ - 51 1/2“8 5/16“55/8“8 3/4“2”
RS 130/M 21 1/4“12 3/4“8 1/2“23 11/32“33” 11 1/4“- 16 1/2“7 7/16“16 3/4“46 1/4“ - 51 1/2“8 5/16“5 5/8“8 3/4“2”

20160778 10
GB
Technical description of the burner
3.6 Firing rates
During operation, burner output varies between:
•MAXIMUM OUTPUT must be selected in area A(Fig. 2).
•MINIMUM OUTPUT which must not be lower than the mini-
mum limit in the diagram.
In order to utilize also area B(RS 130/M) it is necessary to perform
the calibration of the combustion head as explained on page 17.
RS 50/M = 321 MBtu/hr 94 kW
NOTE:
The FIRING RATE areas given in figure (A) have been reduced
by 10% with respect to the maximum range that can be
reached. See “Procedure to refer burner operating condition
at an altitude and/or at a combustion supporter air tempera-
ture different to the standard values (328 ft above sea level, 68
°F)” to page 11 for operation at different ambient temperatures
and/or altitudes.
Model MBtu/hr kW
RS 70/M 512 150
RS 100/M 570 167
RS 130/M 607 178
WARNING
The firing rate area values have been obtained con-
sidering an ambient temperature of 68 °F, and an
atmospheric pressure of 394” WC and with the
combustion head adjusted as shown at page 17.
Comb. chamber pressure
Fig. 2
“WC
Comb. chamber pressure
“WC
Comb. chamber pressure
“WC
RS 70/M
RS 100/M
RS 130/M

Technical description of the burner
11 20160778
GB
3.6.1 Procedure to refer burner operating condition at an altitude and/or at a combustion supporter air
temperature different to the standard values (328 ft above sea level, 68 °F)
Tab. E
F- correction factor of discharge head and delivery in relation to temperature and altitude.
Reference conditions:
–Air temperature 68 °F (20 °C)
– Barometric pressure 394 ''w.c. (1000 mbar)
– Altitude 328 ft a.s.l. (100 m a.s.l.)
Example
Using the Tab. E, for an altitude of 3,000 ft and an air temperature
of 68 °F, an Ffactor value is obtained equal to 0.908;
if the capacity at the boiler furnace is Qfoc = 4,500 Mbtu/h, the cor-
rect output will be equal to:
Qburner = Qfoc / F = 4,500 / 0.908 = 4,956 Mbtu/h
3.7 Minimum furnace dimensions
The firing rates were set in relation to certified test boilers.
Fig. 3 indicates the diameter and length of the test combustion
chamber.
Example:
Output 2579 MBtu/hr:
diameter 24 inch - length 6.6 ft
AIR TEMPERATURE
Altitude Altitude bar. press. bar. press. 0 5 10 15 20 25 30 40 °C
ft a.s.l. m a.s.l. "w.c. mbar 32 41 50 59 68 77 86 104 °F
00399 1013.00 1.087 1.068 1.049 1.031 1.013 0.996 0.980 0.948
328 100 394 1000.00 1.073 1.054 1,035 1,017 1.000 0.983 0.967 0.936
1.000 305 385 977.40 1.049 1.030 1.012 0.994 0.977 0.961 0.945 0.915
2.000 610 371 942.80 1.012 0.994 0.976 0.959 0.943 0.927 0.912 0.883
3.000 915 358 908.20 0.975 0.957 0.940 0.924 0.908 0.893 0.878 0.850
4.000 1.220 345 875.80 0.940 0.923 0.907 0,891 0.876 0.861 0.847 0.820
5.000 1.525 332 843.50 0.905 0.889 0,873 0.858 0.844 0.829 0.816 0.790
6.000 1.830 320 811.85 0.871 0.856 0.841 0.826 0.812 0.798 0.785 0.760
7.000 2.135 307 779.80 0.837 0.822 0.807 0.793 0.780 0.767 0.754 0.730
8.000 2.440 294 747.80 0.803 0.788 0.774 0.761 0.748 0.735 0.723 0.700
D2919
Length (ft)
Furnace dimensions
Diameter (inches)
Fig. 3

20160778 12
GB
Technical description of the burner
3.8 Burner description
1 Combustion head
2 Ignition electrode
3 Screw for combustion head adjustment
4 High gas pressure switch
5 Servomotor controlling the gas butterfly valve and the air
damper (by means of a variable profile cam mechanism).
When the burner is stopped the air damper will be completely
closed to reduce heat loss due to the draft of the chimney that
draws the air from the air intake of the fan
6 Plug-socket on the cable of the ionisation probe
7 Lifting rings
8 Motor contactor and thermal relay with reset button
9 Switch for:
- Automatic-manual-OFF operation
- Power increase / power reduction button
10 Terminal board for electrical connection
11 Cable grommets for electrical connection to be carried out by
the installer
12 Control box with light signalling lockout and reset button
13 Flame inspection window
14 Low air pressure switch
(differential operating type)
15 Slide bars for opening the burner and inspecting the combus-
tion head
16 Gas pressure test point and head fixing screw
17 Combustion head air pressure test point
18 Flame sensor
19 Air damper
20 Air inlet to fan
21 Screws securing fan to sleeve
22 Gas input pipework
23 Gas butterfly valve
24 Boiler mounting flange
25 Flame stability disk
26 Bracket for output power regulator RWF (foreseen as kit)
27 Ignition transformer
28 Connection for ignition gas pilot
29 Lifting ring
Two types of burner failure may occur:
Flame safeguard lock-out
If the flame safeguard alarm lights up, it indicates that the
burner is in lock-out. To reset, press the reset push-button.
Motor trip
release by pressing the push-button on thermal overload
8)(Fig. 4). Refer to paragraph “Thermal relay calibration” on
page 24.
19 20
21
22
23
24
25
28
6
1
2
3
4
5
27
8
9
26
10
11
12 13 14 15 29 16 17 18
7
Fig. 4
20161001

Technical description of the burner
13 20160778
GB
3.9 RFGO-A13 control box
Warnings
All interventions (assembly and installation operations, assis-
tance, etc.) must be carried out by qualified personnel.
Before modifying the wiring in the control box connection area,
fully disconnect the system from the power supply (omnipolar
separation). Check the system is not powered and cannot be
accidentally reconnected. Failure to do this will lead to the risk
of electrocution.
Protection against electrocution from the control box and all
connected electric components is obtained with the correct
assembly.
Before any intervention (assembly and installation operations,
assistance, etc.), ensure the wiring is in order and that the
parameters are correctly set, then make the safety checks.
Falls and collisions can negatively affect the safety functions.
In this case, the control box must not be operated, even if it
displays no evident damage.
For the safety and reliability of the control box, comply with the
following instructions:
– avoid conditions that can favour the development of conden-
sate and humidity. Otherwise, before switching on again, make
sure that the entire control box is perfectly dry!
– Static charges must be avoided since they can damage the
control box’s electronic components when touched.
Technical data
Tab. F
Mechanical structure
The control box is made of plastic to resist knocks, heat and flame
propagation.
WARNING
To avoid accidents, material or environmental dam-
age, observe the following instructions!
The control box is a safety device! Avoid opening or
modifying it, or forcing its operation. Riello S.p.A.
cannot assume any responsibility for damage re-
sulting from unauthorised interventions!
Mains voltage 110 Vac +20 % / +15 %
Mains frequency 50 / 60 Hz
Primary fuse (external) max. 10 A
Weight approx. 2.5 lbs.
Power absorption approx. AC 7 VA
Protection level IP40
Safety class II
Environmental conditions:
Operation
Mechanical conditions
Temperature range
Humidity
DIN EN 60721-3-3
Class 3M3
Class 3K3
-104 to 140°F
< 90 % r.h. (without condensing)
S9739
Fig. 5

20160778 14
GB
Technical description of the burner
3.10 Servomotor SQM41 ...
Warnings
All interventions (assembly and installation operations, assis-
tance, etc.) must be carried out by qualified personnel.
Falls and collisions can negatively affect the safety functions.
In this case, the servomotor must not be operated, even if it
displays no evident damage.
Fully disconnect the burner from the mains when working near
terminals and servomotor connections.
Condensation and exposure to water are not allowed.
For safety reasons, the servomotor must be checked after
long periods of non-use.
•
Technical data
WARNING
To avoid accidents, material or environmental
damage, observe the following instructions!
Avoid opening, modifying or forcing the ser-
vomotor.
Mains voltage 120 V -15% +10%
Mains frequency 50 / 60 Hz
Power absorption 10 VA
Motor Synchronous
Drive angle Varying between 0° and 135°
WARNING
Absolutely do not adjust the red cam No. 1 more
than 135° to prevent serious or irreversible damage
to the mechanical adjustment parts.
Protection level Max. IP 66, with appropriate cable en-
try
Cable entry 2 x 1/2” NPT
Cable connection terminal board for 0.5mm2(min.)
and 2.5mm2(max.)
Rotation direction Anticlockwise
Rated torque (max.) 10 Nm
Holding torque 5 Nm
Operation time 30 s. at 90° (60Hz - 17%)
Weight approx. 2 kg
Environmental conditions:
Operation
Transport and storage
-20....+60° C
-20...+60°C
S8907
Fig. 6

Installation
15 20160778
GB
4.1 Notes on safety for the installation
After carefully cleaning all around the area where the burner will be
installed, and arranging the correct lighting of the environment, pro-
ceed with the installation operations.
4.2 Handling
The packaging of the burner includes a wooden platform, so it is
possible to move the burner (still packaged) with a transpallet truck
or fork lift truck.
4.3 Preliminary checks
Checking the consignment
4.4 Preparing the boiler
4.4.1 Boiler plate
Drill the combustion chamber mounting plate as shown in Fig. 7.
The position of the threaded holes can be marked using the head
gasket supplied with the burner.
4 Installation
DANGER
All the installation, maintenance and disassembly
operations must be carried out with the electricity
supply disconnected.
WARNING
The installation of the burner must be carried out by
qualified personnel, as indicated in this manual and
in compliance with the standards and regulations of
the laws in force.
WARNING
The handling operations for the burner can be high-
ly dangerous if not carried out with the greatest at-
tention: keep any unauthorised people at a
distance; check the integrity and suitableness of the
available means of handling.
Check also that the area in which you are working
is empty and that there is an adequate escape area
(i.e. a free, safe area to which you can quickly move
if the burner should fall).
During the handling, keep the load at not more than
20-25 cm from the ground.
CAUTION
After positioning the burner near the installation
point, correctly dispose of all residual packaging,
separating the various types of material.
Before proceeding with the installation operations,
carefully clean all around the area where the burner
will be installed.
CAUTION
After removing all the packaging, check the integrity
of the contents. In the event of doubt, do not use the
burner; contact the supplier.
The packaging elements (wooden cage or card-
board box, nails, clips, plastic bags, etc.) must not
be abandoned as they are potential sources of dan-
ger and pollution; they should be collected and dis-
posed of in the appropriate places.
WARNING
The output of the burner must be within the boil-
er’s firing rate.
WARNING
A burner label that has been tampered with, re-
moved or is missing, along with anything else that
prevents the definite identification of the burner
makes any installation or maintenance work diffi-
cult.
inch A DF 
RS 70/M 7 11/16“ 10 7/8“ - 12 51/64“1/2W
RS 100/M 7 11/16“ 10 7/8“ - 12 51/64“1/2W
RS 130/M 7 11/16“ 10 7/8“ - 12 51/64“1/2W
Fig. 7
20150238

20160778 16
GB
Installation
4.4.2 Blast tube length
The length of the blast tube must be selected according to the indi-
cations provided by the manufacturer of the boiler, it must be great-
er than the thickness of the boiler door complete with its insulation.
The length available, L (inches), is as follows:
For boilers with front flue passes 15)(Fig. 8) or flame inversion
chambers, protective insulation material 13), must be inserted
between the boiler refractory 14) and the blast tube 12).
This protective insulation must not compromise the extraction
of the blast tube.
For boilers having a water-cooled front, the insulation 13)-14)
is not required unless it is required by the boiler manufacturer.
4.5 Combustion head calibration
At this point check, for model RS 130/M, whether the maximum de-
livery of the burner at high fire operation is contained in area A or
in area B of the firing rate. See Fig. 2, page 10.
If it is in area A then no operation is required.
If, on the other hand, it is in area B:
unscrew the screws 1)(Fig. 9) and disassemble the blast tube
2);
move the fixing of the rod 3) from position A to position B,
thereby causing the shutter 4) to retract;
now refit the blast tube 2) and the screws 1).
Once this operation has been carried out (if it was required), secure
the flange 11)(Fig. 8) to the boiler plate, inserting the gasket 9).
Use the 4 screws, after first protecting the thread with an anti-lock-
ing product.
The seal between burner and boiler must be airtight.
If you noticed any irregularities in the positions of the flame rod or
ignition electrode during the check mentioned above, remove
screw 1)(Fig. 10), extract the internal part 2) of the head and set up
the two components correctly.
Model L
(short blast tube)
RS 70/M 10“
RS 100/M 10“
RS 130/M 11“
10 11
15
12
13
14
1
8
15
3
3
4
7
5
2
"L''
Fig. 8
20161071
Fig. 9
D738
Fig. 10
D2398

Installation
17 20160778
GB
4.6 Securing the burner to the boiler
Detach the combustion head from the burner (Fig. 8, page 16):
loosen the four screws 3) and remove the cover 1);
disengage the swivel joint 7) from the graduated sector 8);
remove the screws 2) from the slide bars 5);
remove the two screws 4) and pull the burner back on slide
bars 5) by about 4”;
disconnect the wires from the flame rod and the electrode and
then pull the burner completely off the slide bars.
4.7 Combustion head setting
Installation operations are now at the stage where the blast tube
and sleeve are secured to the boiler as shown in Fig. 11.
It is now a very simple matter to set up the combustion head, as this
depends solely on the MAX output developed by the burner.
It is therefore essential to establish this value before proceeding to
set up the combustion head.
There are two adjustments to make on the head:
air and gas deliveries.
In diagram (Fig. 12) find the notch to use for adjusting the air and
the gas.
4.7.1 Air adjustment
Turn screw 4)(Fig. 11) until the notch identified is aligned with the
front surface 5) of the flange.
4.7.2 Gas adjustment
Loosen the 3 screws 1)(Fig. 11) and turn ring 2) until the notch
identified is aligned with index 3).
Tighten the 3 screws 1) fully down.
Example RS 70/M
MAX output = 2200 MBtu/hr
If we consult diagram (Fig. 12) we find that for this output, air must
be adjusted using notch 3)(Fig. 11).
NOTE
Diagram (Fig. 12) shows the ideal settings for the ring 2)(Fig. 11).
If the gas main pressure is too low to reach the maximum output
operation pressure indicated on page 21, and if the ring 2)(Fig. 11)
is not fully open, it can be opened wider by 1 or 2 notches.
Continuing with the previous example, page 21 indicates that for
burner RS 70/M with output of 2200 MBtu/hr a pressure of approx-
imately 2.36 “WC is necessary at test point 6)(Fig. 11).
If the pressure cannot be reached, open the ring 2)(Fig. 12) to
notch 4 or 5.
Prepare a suitable lifting system.
The manufacturer declines any and every re-
sponsibility for any possible lifting movements,
different from those indicated in this manual.
WARNING
The seal between burner and boiler must be air-
tight.
Fig. 11
D2399
AIR GAS
Fig. 12
Maximum burner output
Notches (Air = Gas)

20160778 18
GB
Installation
Make sure that the combustion characteristics are satisfactory and
free of pulsations.
Once you have finished setting up the head:
refit the burner to the slide bars 3)(Fig. 13) at approximately 4”
from the sleeve 4) - burner positioned as shown in Fig. 8,
page 16 - insert the flame rod cable and the ignition electrode
cable and then slide the burner up to the sleeve so that it is
positioned as shown in Fig. 13.
Refit screws 2) on slide bars 3).
Secure the burner to the sleeve by tightening screw 1).
Reconnect the swivel joint 7) to the graduated sector 6).
Connect gas train and pilot train as shown in Fig. 17, page 20.
4.8 Ignition pilot adjustment
Place the pilot and electrode as shown in Fig. 14.
The pilot works correctly at pressures ranging from 5 - 12” WC.
IMPORTANT
To set the pilot without main burner operation, proceed as follows:
– disconnect all wires of the main valves V1 and V2 A (Fig. 15);
– carry out a jumper between; VP1-2 and V1-V2 B(Fig. 15).
At the end of the pilot adjustment, restore the valves connection D
(Fig. 15).
Pay attention to the terminals during the connection of the valves.
The correct terminals are the orange ones, as shown in E(Fig. 15).
WARNING
When fitting the burner on the two slide bars, it is
advisable to gently draw out the high tension cable
and flame detection probe cable until they are
slightly stretched.
8
7
231
5
4
Fig. 13
20161035
WARNING
Measures must be respected.
Fig. 14
D2391
D
PE
N
V1-V2
PE
N
VP1-2
E
PE
N
V1-V2
PE
N
VP1-2
A
B
E
Fig. 15
20162440