
02.12.2022 Rev. 12
CONTENTS
1. WARNINGS.......................................................................................................................................... 3
1.1. Warning Symbols and Descriptions............................................................................................... 3
1.2. General Safety Rules...................................................................................................................... 4
2. TERMSOFWARRANTY.................................................................................................................... 6
2.1. Out of Warranty Conditions.......................................................................................................... 6
3. BURNER’SGENERAL FEATURES................................................................................................... 7
3.1. Purposeof Useand Work Limits of Burners................................................................................. 7
3.2. CodeKey........................................................................................................................................ 7
3.3. Burner Components........................................................................................................................ 9
4. GAS, FLUE GASAND HEATING WATER SCHEMA................................................................... 15
5. TECHNICAL DATA .......................................................................................................................... 16
5.1. Capacity Table.............................................................................................................................. 16
5.2. Back Pressure-Capacity Diagrams............................................................................................... 17
5.3. Burner Dimensions....................................................................................................................... 18
5.4. Gas HoodPressureLoss Diagram................................................................................................ 19
5.5. FlameLength and Diameter......................................................................................................... 20
5.6. NoiseLevel................................................................................................................................... 20
6. BURNER HANDLING INFORMATION.......................................................................................... 21
7. INSTALLATION................................................................................................................................ 22
7.1. Burner Installation Picture............................................................................................................ 22
7.2. In reverseflamefront mirror boilers............................................................................................ 23
7.3. In cylindrical (straight flame)boilers........................................................................................... 23
8. COMMISSIONING............................................................................................................................. 24
8.1. BeforeCommissioning................................................................................................................. 24
8.2. General Controls .......................................................................................................................... 24
8.3. Combustion Adjustment............................................................................................................... 26
8.4. FuelPumps................................................................................................................................... 26
8.5. Gas Adjustment............................................................................................................................ 31
8.5.1. VGD 20 4011 - 5011 Series Gas Valve.................................................................................... 31
8.5.2. MB DLE Series Monoblock Gas Valve................................................................................... 32
8.5.3. MB ZRD(LE) 405 –412 Series Gas Valve.............................................................................. 34
8.6. Air PressureSwitchAdjustment .................................................................................................. 35
8.7. Servomotor Adjustment............................................................................................................... 35
8.8. Emission Measurement................................................................................................................ 36
8.9. ProgramRelay.............................................................................................................................. 36
8.10. Light Oil Burner Fuel Ring Line.............................................................................................. 39
8.11. Gas Pass Equipment Requiredin Gas Line.............................................................................. 40
9. MAINTENANCE................................................................................................................................ 41
9.1. Weekly Maintenance.................................................................................................................... 41
9.2. Monthly Maintenance................................................................................................................... 41
9.3. SeasonalMaintenance.................................................................................................................. 42
10. TROUBLESHOOTING................................................................................................................... 43
11. PERIODICAL FLUE GASMEASUREMENT REPORT.............................................................. 44
12. AFTER SALESSERVICES............................................................................................................ 45
13. NOTES............................................................................................................................................. 46