CIB UNIGAS - M039191CA
28
At least once a year carry out the maintenance operations listed below. In the case of seasonal servicing, it is recommended to carry
out the main tenance at the e nd of each heating season; in the case of continuous operation the maintenance is carried out every 6
months.
ROUTINE MAINTENANCE
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Check and clean the cartdrige of the fuel filter, replace it if necessary (see next paragraph);
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carefully check for leaks, the fuel flexible hoses;
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check and clean the filter on the fuel pump: bilter must be thoroughly cleaned at least once in a season to ensure correct working of
the fuel unit. To remove the filter, unscrew the four screws on the cover. When reassemble, make sure that the filter is moun ted
with the feet toward the pump body. If the gasket between cover and pump housing should be damaged, it must be replaced;
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remove, check and clean the combustion head (page 29); when reassembling, carefully observe the measures on page 29;
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check the ignition electrodes and their ceramic insulators, clean, adjust and replace if necessary;
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remove and clean the oil nozzles (IMPORTANT: do not clean the nozzles using metallic or sharp utensils, use only solvents or
steam); at the end of maintenance operations, refit the burner, turn it on and check the combustion. If in doubt, replace the defec-
tive nozzle/s. In case of intensive use of the burner, the nozzles must be replaced at the end of the working season;
z
check and carefully clean the flame detection photoresistor, if necessary replace it and, if in doubt, check the detection current fol-
lowing the diagram on page 31;
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clean and grease levers and rotating parts.
Light oil filter maintenance
For correct and proper servicing, proceed as follows:
1
shut off fuel in the line section being serviced;
2
unscrew the tray;
3
remove the filter cartridge from its support and wash it with petrol or replace if necessary; check seal O-Ring, replace if necessary;
4
reassemble the tray and restore fuel flow.
WARNING: ALL OPERATIONS ON THE BURNER MUST BE CARRIED OUT WITH THE MAINS DISCONNECTED AND
THE FUEL MANAUL CUTOFF VALVES CLOSED!
ATTENTION: READ CAREFULLY THE “WARNINGS” CHAPTER AT THE BEGINNIG OF THIS MANUAL.
PART III: MAINTENANCE
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