Unigas RX63, Руководство по установке, использованию и обслуживанию

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PART IV: MAINTENANCE
36
Removing the filter in the MULTIBLOC DUNGS MB-DLE 405..412
z
Check the filter at least once a year!
z
Change the filter if the pressure difference between pressure connection 1 and 3 (Fig. 21-Fig. 22)is
Δ
p > 10 mbar.
z
Change the filter if the pressure difference between pressure connection 1 and 3 (Fig. 21-Fig. 22) is twice as high compared to the last
check.
You can change the filter without removing the fitting.
1
Interrupt the gas supply closing the on-off valve.
2 Remove screws 1 ÷ 4 using the Allen key n. 3 and remove filter cover 5 in Fig. 23.
3 Remove the filter 6 and replace with a new one.
4 Replace filter cover 5 and tighten screws 1 ÷ 4 without using any force and fasten.
5 Perform leakage and functional test, p
max.
= 360 mbar.
6 Pay attention that dirt does not fall inside the valve.
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).
Fig. 21
Fig. 22
Fig. 23
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