19
5.
Check the CO
2
content at the upper and lower
heating output again.
If the CO
2
content is not within the specified range:
Repeat steps for upper and lower heating output.
6.
Hold down
S
and simultaneously for longer than
2 s. Burner switches to operating mode.
Checking the CO content
Enter actual value into the report in the appendix.
Checking the flue gas temperature
Enter actual value into the report in the appendix.
Displaying the ionisation current
Note
The ionisation current must be called up via the burner
control unit. It is
not
possible to check the ionisation
current with a Testomatik-Gas or a multimeter.
0
1.
Hold down
S
for approx. 2 s ;
" "
flashes.
0
2.
Press until "5" appears under Service.
0
3.
Press
S
. "5" appears under Status.
0
4.
Press until "3" appears under Service.
0
5.
Press
S
. "3" appears under Status. During opera-
tion, the ionisation current is shown under Service
(e.g. 30 = 3.0
µ
A).
0
6.
Start the burner with emissions test mode enabled
(in control unit menu).
0
7.
Read the ionisation current.
0
8.
Record the actual value in the report.
0
9.
Hold down
S
for approx. 2 s ;
" "
flashes.
10.
Press until "5" appears under Service.
11.
Press
S
. "5" appears under Status.
12.
Press until "0" appears under Service.
13.
Press
S
. The operating display appears again.
Shutting down the system
1.
Switch off the mains isolator or the power supply.
Safeguard against unauthorised reconnection.
Danger
Mains voltage can be life threatening.
Ensure that the system is not 'live' during
maintenance work.
2.
Close the gas shut-off valve.
Opening the combustion chamber
1.
Undo the gas supply pipe at the fitting.
Commissioning, inspection, maintenance
Checking the CO
2
content
(cont.)
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