Operators manual
© 2017 Honeywell International Inc.
Operators manual underground gas pressure reducing station
Type: COCON 13
Page 14
2.4.7
Pilot
Control
The
set
point
can
be
adjusted
with
the
set
screw
on
top
of
the
pilot
(CW
to
increase,
CCW
to
decrease)
As
dome
load
(active
motorization)
and
spring
force
vary
with
stem
travel
the
outlet
pressure
will
deviate
from
the
set
point.
Upon
set
point
deviation
the
pilot,
(which
functions
similar
to
the
main
line
valve)
will
open,
or
close
to
correct
the
dome
load
and
(indirectly)
correct
the
outlet
pressure.
Low
Pressure
High
Pressure
Fig.
3.3.3
Consideration
should
be
given
to
the
bleed
or
discharge
of
the
monitor
controller
@
lock
‐
up,
low
flow
and
testing
of
the
active
.
Upon
activation
of
the
monitor
pilot
the
excess
of
motorization
will
be
discharged
to
outlet
which
results
in
closing
of
the
monitor.
Note
that
after
monitor
lock
‐
up
(which
equals
system
lock
‐
up)
no
bleeds
are
present.
See
also
the
relevant
pilot
manual
