NGW 300 / LGW 300 / GBW 300
Table of figures
IV
201
NGW 300 water heater ................................................................................................201
301
Sequence of operation..................................................................................................302
501
General fault symptoms................................................................................................501
601
Setting the CO
2
-content................................................................................................601
602
Testing the electrode clearances..................................................................................602
604
Testing the LPG (LGW 300) gas pressure regulator ....................................................604
701
Basic wiring for the NGW 300 / LGW 300 / GBW 300 with switch ...............................702
702
Basic wiring for the NGW 300 / LGW 300 / GBW 300 with timer .................................703
703
System wiring for the GBW 300 - MAN ........................................................................704
704
System wiring for the GBW 300 - USA .........................................................................705
705
System wiring for the GBW 300 Standard ....................................................................706
706
System wiring for the NGW IVECO ..............................................................................707
707
System wiring for the LGW / NGW 300 Standard and DC ...........................................708
708
System wiring for the NGW 300 EvoBus Citaro ...........................................................709
709
System wiring for the NGW 300 MAN ..........................................................................710
801
Disassembly and mounting of the burner head ............................................................802
802
Example of a heater installation in a bus ......................................................................804
901
Replacing the SG 1578 control unit by the SG 1585 ....................................................902
902
U 4851 circulating pump ...............................................................................................903
903
Aquavent 6000 S circulating pump ...............................................................................904
904
Replacing the temperature limiter and regulating thermostat .......................................905
905
Replacing the SG 1585 control unit ..............................................................................906
906
Replacing the ignition spark generator .........................................................................906
907
Replacing the ignition electrodes, the flame monitor electrode and the burner............907
908
Burner head: disassembly and reassembly.................................................................909
909
Replacing the heat exchanger and the combustion chamber.......................................911
910
Adapters .......................................................................................................................912
