Fulton Electric (FB-L) Steam Boiler - Manual (Page 28)

Introduction
Recommended Daily
Maintenance
1. The following procedures should be
carried out daily. They are designed to
prevent the build up of scale, silt, or
sludge in the bottom of the boiler and in
the pipes leading to the water gauge. In
addition to these procedures the advice
of a water treatment supplier should be
sought and followed. An ASME Section
VIII blow off receptacle must be
provided for the appropriate pressure.
2. Make a daily inspection of the boiler and
system for leaks or any unusual
condition in the operation of the controls
and feed pump.
3. Check water level in sight glass. (It
should be halfway in the sight glass to
prevent a dry fire condition which can
permanently damage the elements and
pressure vessel.)
4. Check all valves to see that they are
opening and closing properly.
Daily Blow Off Sequence
1. Close main steam supply valve.
2. Start the boiler.
3. If the boiler is operating, stop the boiler
and allow pressure to decrease.
4. When the steam pressure has reached
20 PSIG, turn on the tap water to the
blow down separator, then open blow
down valve(s) for approximately 10-20
seconds. Close the valve(s). (Automatic
cooling kits do this automatically)
5. For 30 - 100 HP Electric Boilers you must
also blow down water level control each
morning by opening the water column
and water gauge blow off valves for
approximately 10 seconds. Close
valves.
6. Allow the boiler feed water pump to
restore the water level in the boiler.
7. Reopen main steam supply valve for
plant operation. If surging occurs,
closing the main steam valve partially
will often stop this.
Water gauge glass
Inspect daily until the need for replacement
becomes apparent. This will assist in
establishing routine replacement
schedules. Examine the surface of the
glass for scratches, corrosion, chips,
cracks, surface flaws, or nicks. To do this,
shine a very bright concentrated light at an
angle of about 45 degrees. A defective
glass will glisten as the light strikes
imperfections.
Recommended Monthly
Maintenance
1. Feed water pump and motor should be
lubricated according to the
manufacturer’s instructions.
2. Heating Element - Inspect heating
element. To protect the element and
prolong its life, it is essential that regular
inspections are carried out. The most
common causes of element failure are
excessive build up of scale and
corrosive attack. Both causes are due
to adverse water treatment.
a) The dangers of scale to the life of the
element cannot be overstressed.
Scale possesses excellent insulative
qualities and its formation on the
element prevents the heat generated
by the element from being transferred
to the water, causing the element to
overheat and burn out.
b) Loose powdery formations can be
removed with a wire brush.
c) Hard scale may be removed using a
mild chemical cleaning agent followed
by a neutralizing agent.
3. Low water cut-off relay - Check that the
low water cut-off relay is operating
correctly in the following manner:
a) With the boiler operating, open the
boiler blow down valve.
b) When the water drops below the
required level, the relay will shut off
the contactor. This shows that the
relay is working properly. Reset low
water cut-off by pushing the reset
button on the side of the panel (5 to
100 BHP only).
c) Close blow-off valve lines and allow
boiler to fill to proper level.
4. Blow down the boiler and sight glass
completely as described under daily
maintenance.
5. Clean the Water Gauge Glass
Blow Down Boiler Daily. Shown is the blow
down “Y” valve.
Blow down water column each morning by
opening the water column and water
gauge blow-off valves.
Your Fulton Electric Steam Boiler has been
designed for years of trouble-free
performance. To ensure the continued safety
and efficiency of the boiler, the schedule of
maintenance outlined in this section should
be adhered to. The boiler should be
inspected annually. All service should be
performed by a certified contractor. WARNING
Prior to the commencement of any work
requiring the removal of cover plates
and the opening of the control panel
box, the electrical supply to be boiler
must be disconnected.
CAUTION
Keep boiler area clear and free from
combustible materials, gasoline, and
other flammable vapors and liquids.
CAUTION
Do not use harsh compounds which will
injure the feed water pump or elements.
24
Maintenance
Electric IOM