Viessmann VITOTRONIC 100 GC1 Installation And Service Instructions Manual page 90

Start-up
Steps
(continued)
7. Match the coding addresses
90
Match control unit to modulating burner
Please note:
The burner must be adjusted. In order to achieve a wide modulation range, the
minimum output should be set as low as possible (take chimney/flue system into
account).
1. Start up the burner.
2. Press 9 and simultaneously for
approx. 2 seconds.
3. With activate the function
"Modulating burner open" (display:
2) and wait until the actuating drive
of the burner is at maximum output.
4. Establish the maximum burner
output through the fuel
consumption.
5. With activate the function
"Modulating burner closed"
(display: 4) and measure the time it
takes for the actuating drive of the
burner to reach the minimum
output.
6. Establish the minimum burner output
(basic output) through the fuel
consumption.
7. With activate the function
"Modulating burner open" (display:
2) and, after one-third of the time
measured in point 5, activate the
function "Modulating burner neutral"
with (display: 3).
8. Establish the partial output through
the fuel consumption.
9. Press .
The relay test is activated.
Make a note of the value.
Make a note of the value.
Make a note of the value.
Make a note of the value.
The relay test is terminated.