C.I.B. UNIGAS
- M03956CR
34
Replacing the electrodes
P60 / P65 / P72
Fig. 34
P73A
Fig. 35
Checking the detection current
ATTENTION:
avoid
the ignition and detection electrodes to contact metallic parts (blast tube, head, etc.), otherwise the boi-
ler’s operation would be compromised. Check the electrodes position after any intervention on the combustion head.
To measure the detection signals refer to the diagrams in Fig. 36
and Fig. 37. If the signal is less than the indicated value, check
the position of the detection electrode, the electrical contacts and
if necessary replace the detection electrode.
Fig. 36
VB
VB
Control box
Minimum detection signal
Siemens LME21-22
3 µA
27
SCALE µA DC
Connector
TERMINAL BOARD
MC
