Weishaupt WG20 1-C Z-LN Series Manual page 3

83054602 1/2020-01 La
Installation and operating instruction
Gas burner WG20.../1-C Z-LN
7 Commissioning .............................................................................................................. 31
7.1 Prerequisite ................................................................................................................. 31
7.1.1 Connect measuring devices ............................................................................ 32
7.1.2 Check gas connection pressure ..................................................................... 33
7.1.3 Check soundness of gas valve train .............................................................. 34
7.1.4 Purging the gas valve train ............................................................................... 37
7.1.5 Preset pressure regulator ................................................................................. 38
7.1.6 Setting values ...................................................................................................... 40
7.1.7 Preset gas and air pressure switch ............................................................... 41
7.2 Adjusting the burner .................................................................................................. 42
7.3 Set pressure switches .............................................................................................. 46
7.3.1 Set gas pressure switch ................................................................................... 46
7.3.2 Set air pressure switch .................................................................................... 47
7.4 Concluding work ........................................................................................................ 48
7.5 Check combustion ..................................................................................................... 49
7.6 Calculate gas throughput ......................................................................................... 50
8 Shutdown .......................................................................................................................... 51
9 Servicing ............................................................................................................................ 52
9.1 Notes on servicing ..................................................................................................... 52
9.2 Service plan ................................................................................................................. 54
9.3 Removing and refitting mixing head ....................................................................... 55
9.4 Set mixing head .......................................................................................................... 56
9.5 Set ionisation and ignition electrodes ................................................................... 57
9.6 Service position .......................................................................................................... 58
9.7 Removing and refitting fan wheel ........................................................................... 58
9.8 Remove burner motor ............................................................................................... 59
9.9 Removing and refitting air damper actuator ......................................................... 60
9.10 Removing and refitting angle drive ...................................................................... 61
9.11 Removing and refitting gas butterfly valve ......................................................... 62
9.12 Removing and refitting air regulator .................................................................... 63
9.13 Replacing coil on multifunction assembly .......................................................... 64
9.14 Replace breather plug of multifunction assembly ............................................ 65
9.15 Removing and refitting filter insert of multifunction assembly ....................... 66
9.16 Replacing the fuse .................................................................................................. 67
10 Troubleshooting ............................................................................................................ 68
10.1 Procedures for fault conditions ............................................................................ 68
10.1.1 Illuminated push button off ............................................................................ 68
10.1.2 Illuminated push button red ........................................................................... 69
10.1.3 Illuminated push button flashes .................................................................... 73
10.2 Operating problems ................................................................................................ 73
11 Technical documentation ......................................................................................... 74
11.1 Wiring diagram ......................................................................................................... 74
11.2 Conversion table unit of pressure ........................................................................ 76
11.3 Appliance categories .............................................................................................. 77
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