Table of Contents
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Index
Index
6. Diagnosis and service
checks
7. Troubleshooting
8. Maintenance
9. Function description
6
Overview of coding level 2 ..................................................................105
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General ............................................................................................... 106
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Boiler .................................................................................................. 106
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Charging ............................................................................................. 108
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Heating ............................................................................................... 109
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DHW (DHW heater) ............................................................................ 111
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Controllers .......................................................................................... 111
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Service functions ................................................................................... 112
Calling up the service menu ............................................................... 112
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Exiting the service menu .................................................................... 112
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Checking operating states, actuators and sensors ................................ 113
Calling up the "Information" menu ...................................................... 113
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Calling up the "Diagnosis" menu ........................................................ 113
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Checking the outputs (actuators) ........................................................... 113
The following actuators can be switched "manually" .......................... 113
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Calling up the "Actuator test" menu .................................................... 114
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Filling the vacuum module ..................................................................... 115
Calls up the "Fill vacuum module" menu ............................................ 115
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Running the pellet hopper until empty ................................................... 115
Calling up the "Run pellet hopper until empty" menu ......................... 115
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Checking the changeover unit ............................................................... 115
Calling up the "Changeover unit" menu .............................................. 116
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Icons and text in the menu ................................................................. 116
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Manual operation of changeover unit ................................................. 116
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Loading the standard setting ................................................................. 117
Calling up the "Standard setting" menu .............................................. 117
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Fault indicator ........................................................................................ 118
Checking and acknowledging faults ................................................... 118
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Calling up acknowledged fault messages .......................................... 118
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Calling up fault codes from the fault memory (fault history) ............... 118
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Deleting saved fault codes from the fault memory ............................. 118
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Fault displays in plain text ...................................................................... 119
Fault codes ............................................................................................ 119
Fuses ..................................................................................................... 126
Appliance fuse protection (to EN 60127-5) .........................................126
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Checking the fuses ............................................................................. 126
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Battery ................................................................................................... 126
High limit safety cut-out ......................................................................... 126
Triggering the function ........................................................................ 127
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Cancelling the function ....................................................................... 127
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Sensors ..................................................................................................127
Connection ......................................................................................... 127
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Check sensors .................................................................................... 128
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Lambda probe ........................................................................................128
Check Lambda probe ......................................................................... 128
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Checking and calibrating the Lambda probe ...................................... 129
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Connection ......................................................................................... 129
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Lambda probe specification ................................................................130
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Extension kit for heating circuit with mixer .............................................130
Flow temperature sensor .................................................................... 130
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Mixer motor .........................................................................................131
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Specification extension kit .................................................................. 131
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Display and controls .............................................................................. 132
Function of "START/STOP" button ..................................................... 132
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Function of the ON/OFF switch on the control unit .............................133
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Control functions ....................................................................................133
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