Fulton Edge ICX or FB-F Vertical Tubeless Boilers (Steam), Gas Fired - Manual (Page 58)

49-G 1/01
Operation
Boiler Controls
a) Flame safeguard burner control–
This is the main control in the panel
box. The programmer in conjunction
with a sensing device, either a flame
rod or an ultra violet scanner,"super-
vises" the ignition sequence - proves
the flame is satisfactory - and finally
"monitors" the established flame.
Should any fault occur, either during
the ignition sequence or during normal
running, the programmer will immedi-
ately go to "lock-out" and the burner
will shut down.
b) Low Water Cut-Off--probe type–
Cuts off the unit when water level is
too low after a 3 second time delay to
avoid nuisance shut downs. As a
standard feature, Fulton boilers are
equipped with ASME CSD-1 Code
controls which include a manual reset
feature on the burner low water cut
off relay and ASME CSD-1 Code
controls also feature an independent
second low water cut off relay. Press
the low water reset button and the
boiler will start.
CAUTION
Do not tamper with the safety fea-
tures of the low water safety cut
out.
c) Pressure Relief Valve– limits
maximum operating pressure of the
boiler.
d) Operating Steam Pressure
Control– located in the control panel
box and connected to the steam pres-
sure gauge assembly by means of a
copper tube. The pressure control reg-
ulates the on/off cycle of the burner,
shutting the burner off when maximum
pressure is reached and switching on
when the steam pressure falls below a
predetermined level.
e) Sight Glass Isolation Valves--
The brass sight glass isolation valves
are equipped with an internal ball
check. In the event that a sight glass
should break, the ball will seat, pre-
venting the discharge of steam and
water. The brass valve stem must be
opened fully to enable this feature. If
the valve is in any other position than
full open, the ball will not seat. For
added safety all Fulton boilers are
equipped with gauge glass protectors.
f) High limit pressure control– locat-
ed in the control panel box and con-
nected to the steam pressure gauge
assembly by means of a copper tube.
The pressure is usually set 10 to 15
PSI (.703 - 1.054 kg/cm 2 ) above the
operating pressure, but below the
maximum pressure of the pressure
relief valve. If the pressure exceeds
the high limit pressure control setting,
the boiler will automatically shut off.
The high limit pressure control must
be manually reset by depressing the
plunger located on top of the control.
f) Air Pressure Switch– mounted
on the burner scroll, this switch is
operated by the pressure of air enter-
ing the burner through the throat of
the scroll. Absence of air, or insuffi-
cient pressure, will prevent the
switch completing the circuit, thus
preventing the burner from operating.
WARNING
When stopping the boiler for any
extensive repairs, shut off main dis-
connect switches on both the boiler
side as well as the feed water side.
NOTE
To ensure that your Fulton Steam
Boiler is kept operating safely and
efficiently, follow the maintenance
procedures set forth in Section 4 of
this manual.