C.I.B. UNIGAS
- M03956CR
32
Inspection and replacement of the
MULTIBLOC DUNGS MBC..SE filter (Threaded valves group)
Gas filter maintenance
To clean or remove the filter, proceed as follows:
1
remove the cap unscrewing the fixing screws (A);
2
remove the filtering cartridge (B), clean it using water and soap, blow it with compressed air(or replace it, if necessary)
3
replace the cartridge in its proper position taking care to place it inbetween the guides as not to hamper the cap replacement;
4
be sure to replace the “O” ring into its place (C) and replace the cover fastening by the proper screws (A).
Removing the combustion head
Inspect the filter at least once a year.
z
Change the filter, if pressure value between pressure connections 1 and 2 is grea-
ther than 10 mbar.
z
Change the filter, if pressure value between pressure connections 1 and 2 is twice
as high compared to the last inspection.
1. Interrupt gas supply: close ball valve
2. Remove screws 1-2
3. Replace the filter insert 3
4. Screw in screws 1-2 without use force to fasten.
5. Perform leakage and funcion test.
6. Pay attention that dirt does not fall inside the valve.
Space requirements for fitting filter, A: from 150 to 230 mm.
Fig. 29
ATTENTION:
Before opening the filter, close the manual cutoff valve downstream the filter and bleed the gas; check that
inside the filter there is no pressurised gas.
A
B
C
Type P60
z
Remove cover C.
z
Unscrew the two screws S holding in position
the washer and then unscrew VRT to free the
threaded rod AR.
z
Unscrew the screws V holding in position the
manifold G and pull out the complete group as
shown in figure.
Note: for the subsequent assembly carry out the
above described operations in the reverse order,
checking the correct position of the OR ring.
Fig. 30
OR
V
G
VRT
S
AR
C
