Operating instructions
4
Installation instructions
Preparing for installation
Product information.............................................................................................. 5
Preparing for installation....................................................................................... 5
Installation sequence
Installing the boiler and making all connections................................................... 9
Opening the control unit....................................................................................... 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................................................................ 32
Fault messages on the display............................................................................. 33
Repairs................................................................................................................. 37
Gas type conversion
Converting from LPG to natural gas .................................................................... 49
Control unit
Functions and operating conditions in weather-compensated mode .................. 52
Designs
Connection and wiring diagram............................................................................ 53
Parts lists............................................................................................................ 55
Specification....................................................................................................... 61
Certificates
Declaration of conformity...................................................................................... 63
Keyword index.................................................................................................... 64
Index
Index
5366 836 GB