Viessmann Vitodens 100-W WB1B Series Installation And Service Instructions Manual page 4

Table of Contents
Connections
(continued)
Venting Connections
Control Connections
Start-up, Inspection and Maintenance
Troubleshooting
Additional Information
4
Vitodens 100-W, WB1B Installation & Service
Installation Examples.................................................36
General.................................................................36
Clearances...........................................................36
Pressure drop of Vitodens 100-W.............................36
Typical system flow rates........................................36
Heating circuit pumps.............................................36
CombiPLUS Built-in Pump.......................................37
System layout 1 to 4..............................................38
Vitodens and CombiPLUS Layout...............................44
Boiler in heating/cooling application..........................47
Boiler with low water cut-off (remote mounted, field supplied)..48
Low-loss header.....................................................49
Venting Connection...................................................50
Electrical Connections................................................50
Rotating the control unit and opening the power/pump module...50
Electrical connections to the power/pump module.....51
Optional operating control - OpenTherm...................51
Closing the power / pump module and reinstalling
the control unit....................................................52
Reinstalling the front panel.....................................52
Necessary Tools.......................................................53
Testing/analysis equipment....................................53
Overview of Controls and Indicators............................53
Control and display elements.................................53
Overview of Boiler Components..................................54
Overview of CombiPLUS Components.........................55
Procedure (Overview)................................................56
Steps.......................................................................57
Troubleshooting Steps...............................................73
Changing Room Temperature......................................73
Diagnosis................................................................74
Sequence of operation and potential faults during
each start-up cycle................................................74
Diagnostics table: Faults with fault display on control unit..75
How to reset faults...............................................76
Boiler Connection....................................................77
Remove front panel...............................................77
Check boiler temperature sensor.............................77
Check outdoor temperature sensor..........................78
Determining the boiler set-point..............................79
Check fixed high limit............................................80
Check flue gas temperature sensor..........................80
Check fuses.........................................................81
CombiPLUS Connection...........................................82
Check outlet temperature sensor.............................82
Replacing the flow limiter.......................................82
Checking or replacing the plate typeheat exchanger..83
Electrical connections to the Terminal Strip for
Accessories.............................................................84
Technical Data........................................................85
Call for heat priority logic table...............................85
Burner Program Sequence of Operation........................89
Wiring Diagram - Natural gas / Propane........................91
Service Function Overview.........................................92
Parts List................................................................93
Maintenance Record..................................................98
Lighting and Operating Instructions.............................99
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