Viessmann Vitodens 200-W Installation And Service Instructions For Contractors page 5

Index
7. Troubleshooting
8. Function description
9. Designs
10. Parts lists
Fault display ........................................................................................... 74
Weather-compensated control unit ..................................................... 74
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Constant temperature control unit ...................................................... 74
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Fault codes ............................................................................................ 75
Repair .................................................................................................... 83
Checking the outside temperature sensor .......................................... 83
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Checking the boiler temperature sensor, cylinder temperature sen-
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sor or low loss header flow temperature sensor ................................. 84
Checking the outlet temperature sensor or comfort sensor (only for
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gas condensing combi boilers) ........................................................... 85
Checking the plate heat exchanger .................................................... 86
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Checking the flue gas temperature sensor ......................................... 86
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Checking the temperature limiter ........................................................ 87
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Checking the fuse ............................................................................... 87
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Extension kit, mixer ............................................................................ 88
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Checking the Vitotronic 200-H (accessory) ........................................ 89
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Constant temperature control unit ......................................................... 90
Heating mode ..................................................................................... 90
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DHW heating with gas condensing combi boiler ................................ 90
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DHW heating with gas condensing boiler ........................................... 90
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Weather-compensated control unit ........................................................ 91
Heating mode ..................................................................................... 91
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DHW heating with gas condensing combi boiler ................................ 91
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DHW heating with gas condensing boiler ........................................... 91
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Boosting DHW heating ....................................................................... 91
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Internal extensions (accessories) .......................................................... 92
Internal extension H1 .......................................................................... 92
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Internal extension H2 .......................................................................... 93
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External extensions (accessories) ......................................................... 94
Extension AM1 ................................................................................... 94
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Extension EA1 .................................................................................... 95
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Control functions .................................................................................... 96
External heating program changeover ............................................... 96
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External blocking ................................................................................ 97
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External demand ................................................................................ 97
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Venting program ................................................................................. 98
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Fill program ......................................................................................... 98
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Screed drying ..................................................................................... 98
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Raising the reduced room temperature .............................................. 100
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Reducing the heat-up time ................................................................. 100
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Allocating heating circuits to the remote control .................................... 101
Electronic combustion control unit ......................................................... 102
Connection and wiring diagram
Connection and wiring diagram
Ordering individual parts ........................................................................105
Overview of the assemblies ...................................................................105
Casing ....................................................................................................105
Heat cell .................................................................................................106
Burner .................................................................................................... 107
Hydraulics type B2HA ............................................................................108
Aqua plate type B2HA ........................................................................ 109
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Hydraulics type B2KA ............................................................................ 110
Aqua plate type B2KA ........................................................................ 111
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Control unit ............................................................................................ 112
Miscellaneous ........................................................................................ 113
Internal connections ......................... 103
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External connections ........................ 104
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Index
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