197
A
Acknowledging a fault display..........124
Actuator test.....................................123
Assembly.........................................174
B
Boiler draining
■ DHW side.......................................66
Boiler water temperature sensor......140
Boosting DHW heating.....................153
Brief scans.......................................120
Burner gasket.....................................60
Burner gauze assembly.....................60
Burner installation..............................61
Burner removal..................................59
C
Calling up fault messages................124
Calling up the service level..............119
Calling up the service menu.............119
Checking functions...........................123
Cleaning the heating surfaces.....61, 63
Code 1
■ Calling up........................................85
Code 2
■ Calling up........................................97
Codes, resetting...........................85, 97
Codes for commissioning...................72
Combustion chamber, cleaning. . .61, 63
Combustion controller......................168
Combustion quality, checking............71
Commissioning..................................45
Condensate drain...............................62
Connection diagrams.......................170
Control unit maintenance position....137
Converting the gas type.....................53
Cylinder cleaning...............................67
Cylinder temperature sensor............140
D
Diaphragm expansion vessel.............46
Draining the boiler
■ Heating water side........................138
E
Electronic combustion controller......168
Extension
■ AM1..............................................156
■ EA1...............................................158
■ Internal H1....................................153
■ Internal H2....................................154
Extension kit for heating circuit with
mixer ...............................................148
External blocking..............................161
External demand..............................162
F
Fault codes......................................125
Fault history.....................................124
Fault manager....................................82
Fault memory...................................124
Faults...............................................124
Fill function.......................................163
Fill water.............................................45
Flow temperature sensor.................140
Flue gas temperature sensor...........145
Function descriptions.......................151
Fuse.................................................147
G
Gas supply pressure..........................54
Gas train ...........................................54
Gas type.............................................52
Gas type conversion..........................53
H
Heating circuit allocation..................168
Heating curve.....................................78
Heating curve level............................80
Heating curve slope...........................80
Heating output, setting.......................57
Heating program changeover..........160
Heat-up time....................................166
Keyword index
Keyword index
5773 238 GB
Summary of Contents for B2UA
Page 10: ...10 13 14 15 Preparing for installation Preparing the installation cont 5773 238 GB ...
Page 11: ...11 16 Preparing for installation Preparing the installation cont 5773 238 GB Installation ...
Page 12: ...12 sF 17 19 21 20 18 Preparing for installation Preparing the installation cont 5773 238 GB ...
Page 14: ...14 27 26 25 Preparing for installation Preparing the installation cont 5773 238 GB ...
Page 41: ...41 2x 1 4 2 3 5 Installation sequence Fitting the front panels 5773 238 GB Installation ...
Page 199: ...199 5773 238 GB ...