Viessmann VITOTRONIC300 Installation And Service Instructions Manual page 4

Table of Contents
Installation Sequence
Commissioning
Service Scans
Troubleshooting
Function and Description
Code 1
Code 2
4
Vitotronic 300, GW2B Installation and Service
Connections to Terminal
Vitotronic 100, GC 1 with 30% LTP Package (VD2 only)..45
External Demand via Switching Contact.......................46
External Demand via 0 - 10V Input..............................46
External Blocking via Switching Contact........................47
External "Mixing Valve Closed"/"Mixing Valve Open".......48
External Changeover of Multi Stage/
Modulating Burners...................................................48
External Heating Program Changeover.........................49
Connecting of Combustion Air Device.........................50
Burner Connection, Burner Control Wiring....................51
Burner Connection, Motor Power Supply......................53
Changing the Language.............................................56
Setting the Date and Time.........................................56
Testing the High Limits Safety Cut-out........................56
Matching the Coding Addresses
to the System Version................................................57
Checking Actuator and Sensors..................................58
Adjusting Heating Curves...........................................60
Connecting the Control Unit to the LON.......................62
Making the LON Connection.......................................64
Calling up the Service Menu.......................................65
Exit Service Menu.....................................................65
Scanning Operating Data...........................................66
Brief Scan...............................................................66
Scanning and Resetting Service Display.......................68
Fault Display............................................................68
Boiler Water Temperature Control ..............................77
Heating Circuit Control..............................................81
DHW Tank Temperature Control ...............................85
Calling Up Coding Level 1..........................................88
"General" Group.......................................................89
"Boiler" Group..........................................................91
"DHW" Group...........................................................91
"Solar" Group...........................................................92
"Heating Circuit 1", "Heating Circuit 2",
"Heating Circuit 3" Group..........................................93
Calling Up Coding Level 2..........................................97
"General" Group.......................................................98
"Boiler" Group........................................................106
"DHW" Group........................................................109
"Solar" Group........................................................111
"Heating Circuit 1", "Heating Circuit 2",
"Heating Circuit 3" Group........................................115
aBA
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