8
6 Operation
6 Operation
6.1 CO/O
2
Control
6.1.1 What happens if a fault occurs in the O
2
trim?
A warning is indicated in case of a fault and the O
2
trim is switched off. The preset values are
set anew. The burner would not shut-down automatically.
1 Fault message is displayed (O
2
controller faulty).
2 Explaination text is displayed (e.g. O
2
measuring value faulty).
3 Settings of preset basic value without control e.g. for air deficiency.
4 Display of running text (O
2
trim faulty)
NOTICE
The display texts are shown every 10 - 15 s alternately. Therefore a keypress to call the ex-
planation text is not necessary.
6.1.2 Resetting O
2
Errors
Each new burner start-up resets O
2
fault automatically. This is permissible, because a 100%
O
2
measurement test is performed at each start-up.
Manual resetting of O
2
fault is possible at any time, as follows:
Press key RESET
ETAMATIC in O
2
trim mode
If not, switch over to O
2
trim mode
Press key 15 M once
Press key ENTER and call up the cause of fault (mandatory!)
Press key 7