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........................................................................................................ 53
Code 2........................................................................................................ 55
Resetting codes to their delivered condition ................................................ 70
Service scans
Service level overview ................................................................................ 71
Temperatures, boiler coding card and brief scans ........................................ 72
Checking outputs (relay test) ...................................................................... 75
Scanning operating conditions and sensors ................................................ 76
Troubleshooting
Fault display ............................................................................................... 79
Fault codes ................................................................................................. 81
Repairs ...................................................................................................... 89
Function description
Constant temperature control unit ............................................................... 98
Weather-compensated control unit .............................................................. 99
Extensions for external connections (accessories) ...................................... 101
Control functions ........................................................................................ 105
Remote control DIP switches ...................................................................... 111
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