Viessmann GC1 - Matching the Coding Addresses to the System Version

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5793 309 - 05
Vitotronic 100, GC1B / Vitotronic 300-K, MW1B Installation and Service
Matching the Coding Addresses to the System Version
Commissioning
Matching coding addresses according to the burner used
Address Meaning Setting
03:... Fuel Gas operation: 0 (factory set condition)
Oil operation: 1 (irreversible)
08:... Units and tens of the maximum
burner output
Example: Max. burner output:
225 kW – select: 25
Note: Values up to and including 199 kW can be entered directly.
09:... Hundreds of the maximum burner
output
Example: Max. burner output: 225 kW – select: 2
0A:... Ratio of output base load to
maximum burner output in percent
Example: Output burner stage 1
135 kW
Max. burner output: 225 kW
(135 kW : 225 kW) · 100% = 60%
Group Function
“0C” 2 “Boiler” Return temperature control
“0D” 2 “Boiler” Therm-Control
“4C” 1 “General”
Function plug sÖ
“4D” 1 “General”
Function plug sL
“4E” 1 “General”
Function plug gS
“98” 1 “General” Viessmann system number
“9C” 1 “General” Monitoring LON participants
Matching the control unit to a two-stage burner
Vitotronic 100
Check all addresses in Code 1 and adjust if required.
Check the following coding address and adjust
accordingly in Code 2:
Matching coding addresses according to the burner used
Address Meaning Setting
03:... Fuel Gas operation: 0 (factory set condition)
Oil operation: 1 (irreversible)
08:... Units and tens of the maximum
burner output
Example: Max. burner output:
225 kW – select: 25
Note: Values up to and including 199 kW can be entered directly.
09:... Hundreds of the maximum burner
output
Example: Max. burner output: 225 kW – select: 2
15:... Modulation range runtime Calculate runtime (s) of servomotor between base load and max.
burner output
0A:... Ratio of output base load to
maximum burner output in percent
Example: Output burner stage 1
135 kW
Max. burner output: 225 kW
(135 kW : 225 kW) · 100% = 60%
05:...
Ratio of partial output at b of the
servomotor runtime to maximum
burner output in percent
Example: Partial output 171 kW
Max. burner output: 225 kW
(171 kW : 225 kW) · 100% = 76%
Note: The burner must be fully adjusted. To achieve a
wide modulating range, set the minimum output as
low as possible (take the chimney and flue system
into account).
Matching the control unit to a modulating burner