Viessmann B1HE-199 - Overview of Electronic Modules

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Vitodens 100-W, B1HE/B1KE Combi Installation/Service

Overview of Electronics Modules

Troubleshooting

Legend

A BCU burner control unit

B HMU heat management unit with wiring panel

C HMI programming unit with WiFi communication module

Main Page

Safety, Installation and Warranty Requirements2
Table of Contents3
Important Regulatory and Installation Requirements5
About These Installation Instructions6
Applicability7
Mechanical Room8
Product Information9
System Examples10
Fitting and Sealing Points10
Minimum Clearances10
Boiler Dimensions11
Mounting the Boiler and Making Connections13
Piping Connections18
Neutralization Unit21
DHW Tank Connection22
Safety Valve23
Flue Gas Connection24
Electrical Connections25
Wifi Operational Reliability and System Requirements29
Closing the Junction Box30
Fitting the Programming Unit and Front Panel31
Adjusting Pump Rate of Integral Pump32
System Layout 133
System Layout 234
System Layout 335
System Layout 436
System Layout 537
System Layout 638
Boiler with Low Water Cut-Off (Remote Mounted, Field Supplied)39
Commission the System with the Commissioning Assistant40
Filling the Heating System42
Checking All Connections on the Heating Water and DHW Sides for Leaks44
Checking the Gas Type44
Converting the Gas Type for Operation with LPG45
Removing the Front Panel45
Removing the Programming Unit to the Maintenance Position46
Checking the Static Pressure and Supply Pressure47
Function Sequenceand Possible Faults48
Seal Test on Coaxial Flue System (Annular Gap Check)49
Removing the Burner50
Checking the Burner Gasket and Flame Body Assembly51
Checking and Adjusting the Ignition and Ionization Electrodes53
Checking the Flue Gas Flapper53
Cleaning the Heating Surfaces54
Check Condensate Drain / Cleaning the Siphon Trays55
Installing the Burner56
Checking the Neutralization System (if Installed)57
Check the Flow Limiter57
Combi Boiler)57
Checking the Expansion Tank (on Site) and System58
Pressure58
Checking the Safety Valve Function58
Checking All Gas Equipment for Leaks at System Presure58
Fitting the Front Panel58
Checking the Combustion Quality59
Checking the CO 2 Content / Relay Tests60
Clock Natural Gas Meter60
Calling up and Resetting the Maintenance Display60
Instructing the System User61
Calling up Parameters61
General62
Boiler63
Dhw65
Service Menu67
Checking Outputs (Actuator Test)67
Fault Display on the Programming Unit69
Overview of Electronic Modules71
Fault Messages72
Repairs82
Opening the Junction Box89
Boiler Functions91
DHW Heating92
Increased DHW Hygiene92
Call for Heat92
Overview of the Modules93
HMU Heat Management Unit94
BCU Burner Control Unit95
Wiring Panel96
B1HE Models 85 / 120 / 150 / 19997
B1KE Models 120 / 19998
Service Reports99
Technical Data100
Parts List103
Lighting and Operating Instructions125

Viessmann B1HE-199 - Overview of Electronic Modules

Table of Contents

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