11
Note
During the adjustment, also check
the gas throughput by means of a
volumetric test.
3.
Check and if required adjust the noz-
zle pressure.
Note
The adjusted gas pressure will be
available at the burner approx. 20
seconds after the burner has star-
ted.
4.
Record the actual value in the report
(on page 45).
5.
Press "S"
D
and "-"
C
simultane-
ously. The burner is now in operating
mode.
6.
Close the gas shut-off valve.
7.
Remove the pressure tester and
close test nipple
A
.
Danger
Escaping gas leads to a risk of
explosion.
Check the test nipple and fittings
for tightness.
Nozzle pressure table for natural gas E and LL
Note
Check that the nozzle pressure table is
applicable for the burner. To do so, com-
pare the serial number on the type plate
with the serial number on page 48.
Gas
group
Wobbe index Wo
Supply
pressure
Rated output
*1
of the
boiler
kWh/m
3
MJ/m
3
mbar
*2
80 kW
105
kW
130 kW
Natural
gas E
15.00
54.00
20.0
Nozzle
pressure
mbar
*2
10.5
10.6
10.0
Natural
gas LL
*3
12.40
44.60
20.0
Nozzle
pressure
mbar
*2
10.5
10.6
10.0
*1
Details relative to T
V
/T
R
= 80/60 ºC.
*2
1 mbar corresponds to approximately 10 mmWC, e.g. 12.0 mbar
≈
120 mmWC.
*3
a
,
c
: No natural gas LL in Austria or Switzerland.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5692 488 GB
