Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 79

Further step-by-step instructions
Matching the control unit to a modulating burner (Vitotronic 100, GC1)
Please note:
The burner must be fully adjusted. To achieve a wide modulating range, set the minimum output as low as possible
(observe the chimney and flue gas system).
1. Start up the burner.
2. Set the override switch to
3. Wait until the burner actuator is
set to maximum output.
4. Determine the maximum burner
output through the fuel
consumption.
Record the relevant value.
Address Setting of
08 Units and tens of the determined maximum output;
e.g. max. output: 225 kW – set here: 25
values including 199 kW can be entered directly.
09 Hundreds of the determined maximum output;
e.g. max. output: 225 kW – set here: 2
15 Determined run time in seconds
0A Relationship between basic output and max. output in percent; e.g.
basic output: 72 kW
max. output: 225 kW
72 kW
x100 % = 32 %
225 kW
05 Relationship between partial output and max. output in percent; e.g.
partial output: 171 kW
max. output: 225 kW
171 kW
x100 % = 76 %
225 kW
(cont.)
5. Press 9 and
for approx. two seconds.
. Relay test is activated.
6. Activate the mod. burner close
function with
and set the override switch to a.
Check the time it takes until the
actuator is at minimum output.
Record the relevant value.
7. Determine the minimum burner
output (basic load) through the
fuel consumption.
Record the relevant value.
simultaneously 8. Activate the mod. burner open
(display shows: 4),
9. Determine the partial output
10. Press
11. Set the determined values in
Initial start-up
function with (display
shows: 2), and set mod. burner
neutral function (display shows: 3)
using , after 1/3 of the time
checked under item 6 (stop burner
module controller).
through the fuel consumption.
Record the relevant value.
.
Relay test is completed.
coding 1, see the table below
and on page 138.
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