6
Service instructions
Warning notices
Warning notices according to GB25034-2010...................................................... 8
Frost protection.................................................................................................... 8
Intended use......................................................................................................... 9
Notes on siting, installation and operation............................................................ 10
Information
Symbols................................................................................................................ 11
Installation instructions
Preparing for installation................................................................................... 12
Installation sequence
Mounting the boiler and making the connections................................................. 17
Opening the control unit enclosure....................................................................... 23
Electrical connections........................................................................................... 23
Service instructions
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 32
Further details regarding the individual steps....................................................... 34
Parameter
Main parameter level............................................................................................ 62
Parameter level 1................................................................................................. 64
Parameter level 2................................................................................................. 67
Diagnostics
Function sequence and possible faults................................................................ 68
Resetting the appliance........................................................................................ 69
Overview of checks.............................................................................................. 69
Status checks....................................................................................................... 70
Scan heating programs........................................................................................ 71
Meter checks........................................................................................................ 71
Troubleshooting
Fault display......................................................................................................... 73
Repairs................................................................................................................. 77
Control unit
Control and display elements............................................................................... 84
Index
Index
5837146
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