Name: Viessmann B2TF
Brand: Viessmann
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Installation and service instructions

for contractors

VIESMANN

Vitodens 222-F

Type B2TB, 1.8 to 35.0 kW

Gas condensing storage combi boiler

Natural gas and LPG version

For applicability, see the last page

VITODENS 222-F

5789 302 GB 11/2016

Please keep safe.

Table of Contents4
Information Disposal of Packaging7
Symbols7
Intended Use8
Product Information8
Vitodens 222-F, Type B2TB8
Preparing for Installation Preparing for Boiler Installation9
Safety Assembly to DIN 1988 and en 806 on the Cold Water Connection11
Installing the Boiler Removing the Front Panels12
Siting and Levelling the Boiler13
Connections on the Heating Water and DHW Side14
Connection on the DHW Side14
Condensate Connection14
Flue Gas Connection15
Gas Connection16
Opening the Control Unit Enclosure17
Electrical Connections17
Routing the Power Cable18
Outside Temperature Sensor20
Connecting the Vitoconnect 100, Type OPTO1 Connecting Cable (Accessories)20
External Demand Via Switching Contact20
External Demand Via 0 - 10 V Input21
External Blocking Via Switching Contact21
Power Supply for Accessories at Plug Lh (230 V ~)22
Power Supply Fö23
Routing Connecting Cables24
Closing the Control Unit Enclosure25
Fitting the Front Panels26
Commissioning, Inspec-Steps - Commissioning, Inspection and Maintenance27
Removing the Front Panels29
Filling the Heating System29
Filling the DHW Cylinder on the DHW Side30
Venting the Boiler31
Filling the Trap with Water31
Venting the Heating System32
Commissioning the System33
Designating Heating Circuits - Only for Weather-Compensated Control Units35
Checking the Gas Type35
Gas Type Conversion (Only for Operation with LPG)36
Checking the Static Pressure and Supply Pressure36
Function Sequence and Possible Faults38
Setting the Max. Heating Output39
Activating Screed Drying39
Tightness Test on Balanced Flue System (Annular Gap Check)40
Removing the Burner41
Checking the Burner Gasket and Burner Gauze Assembly41
Checking and Adjusting the Ignition and Ionisation Electrodes43
Cleaning the Heating Surfaces43
Checking the Condensate Drain and Cleaning the Trap43
Installing the Burner45
Checking the Neutralising System (if Installed)45
Checking the Anode Connection and Anode Earth Current with an Anode Tester45
Draining the Boiler on the DHW Side46
Cleaning the Loading Cylinder47
Checking and Replacing the Magnesium Anode (if Required)47
Re-Assembling and Filling the Loading Cylinder48
Checking the Expansion Vessel and System Pressure48
Checking the Pre-Charge Pressure and the DHW Expansion Vessel (if Installed)49
Checking the Safety Valve Function49
Checking the Firm Seating of Electrical Connections49
Checking All Gas Equipment for Tightness at Operating Pressure50
Checking the Combustion Quality50
Checking the Flue System for Unrestricted Flow and Tightness51
Matching the Control Unit to the Heating System51
Adjusting Heating Curves51
Connecting the Control Unit to the WLAN Network53
Connecting the Control Unit to the LON53
Calling up Parameter Level 156
General56
Boiler58
Dhw58
Heating Circuit 1, Heating Circuit 2, Heating Circuit 359
Calling up Parameter Level 264
General64
Boiler71
Dhw74
Heating Circuit 1, Heating Circuit 2, Heating Circuit 376
Diagnosis and Service Calling up the Service Menu84
Scans Leaving the Service Menu84
Change Passwords84
Resetting All Passwords to Their Delivered Condition85
Diagnosis85
Calling up Operating Data85
Calling up Device Status85
Brief Scan86
Checking Outputs (Actuator Test)87
Troubleshooting Fault Display89
Fault Codes89
Maintenance101
Putting the Control Unit into the Service Position101
Draining the Boiler on the Heating Water Side102
Checking the Outside Temperature Sensor103
Checking the Boiler Water Temperature Sensor, Cylinder Temperature Sensor or Flow Temperature Sensor of Low Loss Header104
Checking the Outlet Temperature Sensor105
Checking the Plate Heat Exchanger106
Checking the Flue Gas Temperature Sensor106
Checking the Temperature Limiter107
Checking the Fuse/Mcb108
Mixer Extension Kit109
Checking the Vitotronic 200-H (Accessories)110
Parts Lists Overview of Assemblies111
Ordering Parts111
Casing112
Hydraulics114
Hydraulic Block118
Loading Cylinder120
Heat Cell122
Matrix Cylinder Burner124
Control Unit126
Miscellaneous128
Ordering Individual Parts for Accessories130
Function Description Control Unit131
Heating Mode131
Heating the DHW Loading Cylinder from Cold131
Reheating When DHW Is Drawn off131
Boosting DHW Heating131
Internal Extensions132
Internal Extensions (Accessories)132
External Extensions (Accessories)134
AM1 Extension134
EA1 Extension135
Control Functions136
External Operating Program Changeover136
External Blocking137
External Demand137
Venting Program137
Fill Program137
Screed Drying138
Raising the Reduced Room Temperature139
Reducing the Heat-Up Time140
Assigning Heating Circuits to the Remote Control141
Vitocom 100, Type GSM: Entering PIN Code Via Vitotronic142
Hydronic Balancing142
Electronic Combustion Control Unit142
Connection and Wiring Dia-Connection and Wiring Diagram - Internal Connections144
Gram Connection and Wiring Diagram - External Connections145
Commissioning/Service147
Specification148
Certificates Declaration of Conformity150
Manufacturer's Certificate According to the 1St Bimschv [Germany]151

Viessmann B2TF Installation And Service Instructions For Contractors

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Brand	Viessmann
Model	B2TF
Category	Boiler
Language	English