Adjusting the air volume (static burner pressure)
1.
Start the boiler.
2.
Remove plug
A
from the test port.
3.
Connect the U-shaped pressure
gauge to test port
A
.
4.
Press
K
and
F
simultaneously
until
"Speed stage 1"
and a value
between 1 and 255 are displayed.
5.
Change the value with
a
/
b
until
the static burner pressure dis-
played by the U-shaped pressure
gauge and the CO
2
flue gas con-
tent correspond to the values in the
table on page 15.
6.
Confirm the set value with
d
.
Note
The control unit changes automati-
cally to burner stage 2. The display
shows
"Speed stage 1 + 2 "
and a
value between 1 and 255.
7.
Repeat steps 4 and 5 for burner
stage 2.
8.
Check the set values.
9.
Seal test connector
A
again with
the previously removed plug.
Note
Do
not
seal the connector next to
test connector
A
.
Further details regarding the individual steps
(cont.)
17
Commissioning, inspection, maintenance
5692
745
GB
Summary of Contents for VC3
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