Installation Instructions
4
Installation instructions
Product information........................................................................................... 6
Preparing for installation................................................................................... 7
Installation sequence
Fitting the boiler and making connections............................................................ 10
Opening the control unit casing............................................................................ 16
Electrical connections........................................................................................... 17
Service instructions
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 23
Further details regarding the individual steps....................................................... 24
Troubleshooting
Function sequence and possible faults................................................................ 44
Fault messages on the display............................................................................. 45
Repairs................................................................................................................. 49
Gas type conversion
Converting from LPG to natural gas .................................................................... 59
Control unit
Functions and operating conditions in weather-compensated mode................... 61
Designs
Connection and wiring diagram............................................................................ 62
Parts lists
Ordering parts...................................................................................................... 64
Overview of the assemblies................................................................................. 65
Sheet metal parts assembly................................................................................. 66
Heat cell assembly............................................................................................... 67
Burner assembly.................................................................................................. 68
Hydraulic assembly.............................................................................................. 70
System boiler hydraulic assembly........................................................................ 72
Combi hydraulic assembly................................................................................... 74
Control unit assembly........................................................................................... 75
Miscellaneous assembly...................................................................................... 77
Specification....................................................................................................... 78
Index
Index
5609 059 GB










