29
2.
Check the CO
2
content at the flue
pipe.
Rated heating
output
Rated heat input
Permissible CO
2
content
P
max
(50/30 °C) Q
min
(H
i
) [net
cv]
Q
max
(H
i
)
[net cv]
Natural gas E
LPG P
in kW
in kW
in kW
in %
in %
400
76
381
8.5 ±0.2
10.1 ±0.2
500
95
474
620
119
593
2.
Note
In the partial load range, the CO
2
con-
tent must always be at least 0.3 %
lower than under full load.
3.
If the CO
2
content has to be adjus-
ted:
Undo cover
B
and turn setting screw
A
in small steps (Torx 40) until the
CO
2
content lies within the specified
range:
■ Turning clockwise → CO
2
content
increases
■ Turning anti-clockwise → CO
2
con-
tent
drops
4.
Record the actual value in the report
(on page 86).
Rechecking the values
Regulate to the upper and lower heat-
ing output again using the program-
ming unit in the burner control unit. If
the values do not match the permis-
sible CO
2
content according to the
tables on pages 28 and 29, repeat the
steps for the upper and lower heating
output.
5.
Hold down
S
E
and
D
simulta-
neously for longer than 2 s. The
burner will change to the operating
mode.
Displaying the ionisation current
Note
The ionisation current must be called up
via the burner control unit. It is not pos-
sible to measure the ionisation current
using the Testomatik-Gas or a multime-
ter.
0
1.
Press
S
approx. 2 s ,
" "
flashes.
0
2.
Press until "5" is shown under
Service.
0
3.
Press
S
. "5" will be displayed under
Status.
0
4.
Press until "3" is shown under
Service.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5794 780 GB
Summary of Contents for 7502860
Page 95: ...95 5794 780 GB ...
