Weishaupt WG20-/1-C LN Series - Page 3

Installation and operating instruction
Gas burner WG20…/1-C LN
83240802 1/2020-01 La
3-96
7 Commissioning.............................................................................................................. 29
7.1  Prerequisite .................................................................................................................29
7.1.1  Connect measuring devices............................................................................ 30
7.1.2  Check gas connection pressure..................................................................... 31
7.1.3  Check soundness of gas valve train.............................................................. 32
7.1.4  Purging the gas valve train............................................................................... 35
7.1.5  Preset pressure regulator................................................................................. 36
7.1.6  Setting values...................................................................................................... 39
7.1.7  Preset gas and air pressure switch ............................................................... 41
7.2  Adjusting the burner..................................................................................................42
7.3  Set pressure switches ..............................................................................................44
7.3.1  Set gas pressure switch................................................................................... 44
7.3.2  Set air pressure switch .................................................................................... 45
7.4  Concluding work........................................................................................................46
7.5  Check combustion.....................................................................................................47
7.6  Calculate gas throughput.........................................................................................48
8 Shutdown.......................................................................................................................... 49
9 Servicing............................................................................................................................ 50
9.1  Notes on servicing.....................................................................................................50
9.2  Service plan.................................................................................................................51
9.3  Removing and refitting mixing head.......................................................................52
9.4  Set mixing head..........................................................................................................53
9.5  Set ionisation and ignition electrodes...................................................................54
9.6  Service position..........................................................................................................55
9.7  Removing and refitting fan wheel...........................................................................56
9.8  Remove burner motor ...............................................................................................57
9.9  Removing and refitting manual adjustment of air damper ................................58
9.10  Removing and refitting angle drive......................................................................59
9.11  Removing and refitting gas butterfly valve.........................................................60
9.12  Removing and refitting air regulator....................................................................61
9.13  Replacing coil on multifunction assembly..........................................................62
9.14  Replace breather plug of multifunction assembly............................................63
9.15  Removing and refitting filter insert of multifunction assembly.......................64
9.16  Replacing the fuse ..................................................................................................65
10 Troubleshooting ............................................................................................................ 66
10.1  Procedures for fault conditions............................................................................66
10.1.1  Illuminated push button off............................................................................ 66
10.1.2  Illuminated push button red........................................................................... 67
10.1.3  Illuminated push button flashes.................................................................... 70
10.2  Operating problems................................................................................................71
11 Technical documentation......................................................................................... 72
11.1  Wiring diagram.........................................................................................................72
11.2  Conversion table unit of pressure........................................................................74
11.3  Appliance categories..............................................................................................75