Viessmann Vitodens 200-W B2HA 112 Installation Instructions Manual page 71

Vitodens 200-W B2HA 112, 150, 399, 530 Service
Outdoor Reset Programming Unit
Coding 1
Coding 2
Diagnosis and Service Scans
Troubleshooting
Function Description
Additional Information
Start-up and Shutdown..............................................32
Menu......................................................................32
Zone Circuit Display..................................................33
Functional Description...............................................34
Combustion Management Systems.............................34
Installation Examples.................................................35
Heating Curve Adjustments........................................40
Connecting the Boiler Control to a LON System............42
General...................................................................44
Boiler......................................................................46
DHW.......................................................................46
Solar.......................................................................47
Heating Circuit 1, 2 and 3..........................................48
General...................................................................52
Boiler......................................................................60
DHW.......................................................................61
Solar.......................................................................63
Heating Circuit 1, 2 and 3..........................................67
Calling up the Service Level........................................73
Diagnosis.................................................................74
Checking Outputs (Relay Test)...................................76
Fault Display............................................................77
Fault Codes..............................................................77
Corrective Action......................................................85
Continuous boiler pump operation............................85
Checking the outside temperature sensor..................85
Check fuse...........................................................85
Check fuses in the external accessories
connection box......................................................85
Checking the boiler temperature sensor and
fixed high limit, DHW tank temperature sensor or
flow temperature sensor for the low loss header........86
Check the flue gas temperature sensor......................86
Replacing the flow rate sensor.................................87
Extension kit for heating circuit with mixing valve......88
Checking the rotational direction of the mixing valve
motor...................................................................88
Changing the rotational direction of the
mixing valve motor (if required)................................88
Checking the Vitotronic 200-H (accessories)..............88
External Extensions AM1 (accessory)..........................89
Internal Extensions EA1.............................................90
Control Functions......................................................92
Wiring Diagram.........................................................95
Burner Program Sequence of Operation........................97
Parts List.................................................................98
Technical Data.......................................................103
Maintenance Record................................................105
Lighting and Operating Instructions............................106
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