Unigas HR2050, Руководство по установке, использованию и обслуживанию

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PART IV: MAINTENANCE
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1 Close the bowl valve before the self cleaning filter
2 Switch off any electrical equipment on board on the filter (example motorization or heaters)
3 Disconnect the outlet pipe from the cover of the self cleaning filter
4 Remove the cover with all the filter pack, leaving only the bowl on the line
5 Clean any residue on the bottom of the bowl and clean the seat of the O-ring seal
6 Insert the filter pack again making sure to respect the correct inlet/outlet direction or any references on the cover and tray
7 Replace the filter by following the reverse order operations
8 Make sure there is no leakage and give the power to any electrical equipmente on the filter
Removing the combustion head
1 Remove the top H .
2 Remove the UV detector out of its housing: disconnect electrode cables and the light oil flexible hoses.
3 Loosen the screws V holding the gas manifold G , loosen the two connectors E and remove the assembly as shown.
Note: to replace the combustion head, reverse the operations described above.
4 Clean the combustion head by means of a vacuum cleaner; scrape off the scale by means of a metallic brush.
Thecnical procedure of self cleaning filters substitution (valid for all models)
WARNING! Drain the system by unscrewing the drain screw on the bottom of the self cleaning filter
WARNING! Replace the O-ring seal between the bowl and cover
Key
1 Inlet
2 Return
3 Gun opening
E Oil piping connections
H Cover
L
Oil gun
H
E
1 2 3
L
G
V