2
TABLE OF CONTENTS
WARNINGS ............................................................................................................................................................... 3
PART I: INSTALLATION ........................................................................................................................................... 5
GENERAL FEATURES ................................................................................................................................................................... 5
How to interpret the burner’s “Performance curve” ......................................................................................................................... 6
Checking the proper gas train size ................................................................................................................................................ 6
BURNER FEATURES ..................................................................................................................................................................... 7
Burner model identification ............................................................................................................................................................. 7
Technical specifications .................................................................................................................................................................. 7
Country and usefulness gas categories ........................................................................................................................................ 11
Performance Curves ..................................................................................................................................................................... 12
Pressure in the network - gas flow rate curves ............................................................................................................................ 14
Combustion head pressure curves vs. the gas flow rate .............................................................................................................. 17
Measuring the gas pressure in the combustion head ................................................................................................................... 17
Pressure in the combustion head vs. gas flow rate curves ........................................................................................................... 18
Overall dimensions ....................................................................................................................................................................... 20
MOUNTINGS AND CONNECTIONS ............................................................................................................................................ 22
Packing ......................................................................................................................................................................................... 22
Fitting the burner to the boiler ....................................................................................................................................................... 22
Matching the burner to the boiler .................................................................................................................................................. 22
How to modify the blast tube length .............................................................................................................................................. 23
Gas Train Reversal ....................................................................................................................................................................... 24
GAS TRAIN CONNECTIONS ....................................................................................................................................................... 25
.ELECTRICAL CONNECTIONS ................................................................................................................................................... 27
Connectors wiring diagrams 2 ......................................................................................................................................................... 8
Power supply without neutral ........................................................................................................................................................ 30
SETTING GAS AND AIR FLOW RATE ........................................................................................................................................ 30
Startup Output ............................................................................................................................................................................... 30
Adjustments - brief description ...................................................................................................................................................... 30
Adjustment procedure ................................................................................................................................................................... 31
Fully modulating burners ............................................................................................................................................................... 33
Gas Proving System VPS504 (Option) ......................................................................................................................................... 33
Calibration of air and gas pressure switches ................................................................................................................................ 34
Calibration of air pressure switch (only for single stage burners) ................................................................................................. 34
Calibration of air pressure switch (double-stage, progressive and fully-modulating).................................................................... 34
Calibration of low gas pressure switch .......................................................................................................................................... 35
Adjusting the high gas pressure switch (when provided) .............................................................................................................. 35
PART II: OPERATION ............................................................................................................................................. 36
OPERATION ................................................................................................................................................................................. 37
PART III: MAINTENANCE....................................................................................................................................... 38
ROUTINE MAINTENANCE ........................................................................................................................................................... 38
Removing the filter in the MULTIBLOC DUNGS MB-DLE 405..412 ............................................................................................. 38
Removing the filter in theMULTIBLOC DUNGS MB-DLE 415 - 420 ............................................................................................. 39
Removing and cleaning the combustion head .............................................................................................................................. 40
Checking the detection current ..................................................................................................................................................... 40
Adjusting the electrodes position ................................................................................................................................................. 41
Seasonal stop ............................................................................................................................................................................... 41
Burner disposal ............................................................................................................................................................................. 41
TROUBLESHOOTING .................................................................................................................................................................. 42
SPARE PARTS ............................................................................................................................................................................. 43
BURNER EXPLODED VIEWS ...................................................................................................................................................... 44
ELECTRICAL WIRING DIAGRAMS
(see related document)
APPENDIX
Summary of Contents for IDEA NG280
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