65
GB
VALVES UNIT
M
VCV L valve body
pG
pL
pF
VCV L (slow opening)
pF: chamber of
combustion signal
(possible)
Air signal withdrawal
pipe (polyethylene)
Minimum gas pressu-
re pressure switch
(1) Note: installation of the combustion chamber compensation tube is recommended in order to optimise opera-
tion of the valve.
Valve body
Gas signal withdrawal
pipe (polyethylene)
Minimum gas pressu-
re pressure switch
Gas signal withdrawal
pipe (rigid)
pF: chamber of
combustion signal
(possible)
MBC
PBr
DUNGS
Ma
de
in
Germa
ny
