Riello DR 32 SE FGR Installation, Use And Maintenance Instructions page 37

1 Information and general warnings............................................................................................................................................ 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 designation ...................................................................................................................................................... 6
3.2 Models available.......................................................................................................................................................... 7
3.3 Technical data ............................................................................................................................................................. 7
3.4 Electrical data.............................................................................................................................................................. 7
3.5 Burner weight .............................................................................................................................................................. 7
3.6 Maximum dimensions.................................................................................................................................................. 8
3.7 Firing rates .................................................................................................................................................................. 9
3.8 Air side pressure drop ................................................................................................................................................. 9
3.9 Gas side pressure drop ............................................................................................................................................. 10
3.10 Burner description ..................................................................................................................................................... 11
3.11 Burner equipment...................................................................................................................................................... 11
3.12 AZL Display... ............................................................................................................................................................ 12
3.13 Control box for the air/fuel ratio (LMV51...) ............................................................................................................... 13
3.14 Servomotor................................................................................................................................................................ 15
4 Installation ................................................................................................................................................................................ 16
4.1 Notes on safety for the installation ............................................................................................................................ 16
4.2 Handling .................................................................................................................................................................... 16
4.3 Preliminary checks .................................................................................................................................................... 16
4.4 Operating position ..................................................................................................................................................... 17
4.5 Lifting points .............................................................................................................................................................. 17
4.6 Installation of the support for burner opening............................................................................................................ 17
4.7 Securing the burner to the boiler ............................................................................................................................... 18
4.8 Gas feeding ............................................................................................................................................................... 18
4.8.1 Gas feed connection to the burner ............................................................................................................................ 18
4.8.2 General gas supply layout (example)........................................................................................................................ 19
4.8.3 Gas train.................................................................................................................................................................... 20
4.8.4 Gas train installation.................................................................................................................................................. 20
4.8.5 Gas pressure............................................................................................................................................................. 20
4.8.6 Pilot - gas train connection ........................................................................................................................................ 20
4.9 Electrical wiring ......................................................................................................................................................... 21
4.9.1 Supply cables and external connections passage .................................................................................................... 22
5 Start-up, calibration and operation of the burner ................................................................................................................. 23
5.1 Notes on safety for the first start-up .......................................................................................................................... 23
5.2 Adjustments prior to ignition (gas)............................................................................................................................. 23
5.3 Burner start-up (gas) ................................................................................................................................................. 23
5.4 Ignition pilot burner.................................................................................................................................................... 24
5.4.1 Pilot burner disassembly ........................................................................................................................................... 24
5.4.2 Pilot burner introduction ............................................................................................................................................ 24
5.5 Burner ignition ........................................................................................................................................................... 25
5.6 Combustion air adjustment........................................................................................................................................ 25
5.6.1 Air / gas adjustment and output modulation .............................................................................................................. 25
Contents
1
GB 20188797