Appendix C Gas Valve
C-36
Inspect the lter at least
once a year.
Change the
lter, if Δp be -
tween pressure connections
1 and 2 > 4” W.C.
1
2
3
Space requirements for
MBC-1000-...: 6“
MBC-2500-...: 7“
MBC-4000-...: 9“
For production date codes
May 2007 or newer, this feature is
present.
1
Internal Fil ter
Change the lter, if Δp be -
tween pressure connections
1 and 2 is twice as high com -
pared to the last inspection.
1. Interrupt gas supply: close
upstream ball valve
2. R emove screws 1-2
3. C
4. S crew in screws 1-2 without
using any force and fasten
22 in. lbs (2.5 Nm).
5. Perform leakage and func -
tion test, p
max
= 5 PSI
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