5
Installation instructions
Preparing for installation................................................................................... 7
Installation sequence
Mounting the boiler and making connections....................................................... 9
Flue gas connection............................................................................................. 11
Gas connection.................................................................................................... 12
Opening the control unit enclosure....................................................................... 13
Electrical connections........................................................................................... 14
Service instructions
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 17
Further details regarding the individual steps....................................................... 18
Troubleshooting
Function sequence and possible faults................................................................ 37
Fault indicators on the display.............................................................................. 38
Repairs................................................................................................................. 40
Function description
Control and display elements............................................................................... 46
Heating mode....................................................................................................... 46
DHW heating........................................................................................................ 46
Extension for external connections (accessory)................................................... 47
Designs
Connection and wiring diagram............................................................................ 48
Parts lists
Ordering parts...................................................................................................... 50
Overview of the assemblies................................................................................. 51
Casing assembly.................................................................................................. 52
Heat cell assembly............................................................................................... 53
Burner assembly.................................................................................................. 55
Hydraulic assembly.............................................................................................. 56
Hydraulic assembly, system boiler....................................................................... 58
Hydraulic assembly, combi boiler......................................................................... 60
Control unit assembly........................................................................................... 62
Miscellaneous assembly...................................................................................... 64
Commissioning/service reports........................................................................ 65
Index
Index
5848 649 GB
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