Unigas KPBY70, Manual Of Installation - Use - Maintenance

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PART IV: MAINTENANCE
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12.5 Electrodes Adjustment
Important Note: Check the ignition and detection electrodes after removing/adjusting the combustion head.
Adjust the electrodes position, according to the quotes shown othe next picture
Fig. 38
12.6 Cleaning and replacing the detection photocell
To clean/replace the detection photocell, proceed as follows:
1
Disconnect the system from the electrical power supply.
2 Shut off the gas supply
3 remove the photocell from its slot ;
4 clean the bulbe if dirty, taking care not to touch it with bare hands;
5 if necessary, replace the bulb;
6 replace the photocell into its slot.
ATTENTION: avoid the ignition and detection electrodes to contact metallic parts (blast tube, head, etc.), other-
wise the boiler’s operation would be compromised. Check the electrodes position after any intervention on the
combustion head.