Installation instructions
Preparing for installation
Product information .................................................................................... 6
Preparing for installation ............................................................................. 6
Installation sequence
Installing the boiler and making all connections ........................................... 9
Flue gas connection.................................................................................... 10
Gas connection .......................................................................................... 11
Opening the control unit casing ................................................................... 12
Electrical connections................................................................................. 13
Fitting the programming unit into the control unit.......................................... 16
Fitting the front panel .................................................................................. 17
Service instructions
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance................................... 18
Further details regarding the individual steps .............................................. 20
Coding
Code 1........................................................................................................ 52
Code 2........................................................................................................ 54
Resetting codes to their delivered condition ................................................ 69
Service scans
Service level overview ................................................................................ 70
Temperatures, boiler coding card and brief scans ........................................ 71
Checking outputs (relay test) ...................................................................... 74
Scanning operating conditions and sensors ................................................ 75
Troubleshooting
Fault display ............................................................................................... 78
Fault codes ................................................................................................. 80
Repairs ...................................................................................................... 88
Function description
Constant temperature control unit ............................................................... 97
Weather-compensated control unit .............................................................. 98
Extensions for external connections (accessories) ...................................... 100
Control functions ........................................................................................ 104
Remote control DIP switches ...................................................................... 110
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