Fulton Boiler FBS Series
7 FBS 01/05
Recommended minimum opening
Model FB-S
1-1.0
1.5-1.0
2-1.0
3-1.0
4-1.0
4-1.25
6-1.25
Minimum area (m
2
)
0.7
1.0
1.5
2.1
3.0
3.2
4.5
Be sure total BHP= proper make up air opening size. For instance if you have three 300 BHP boilers,
it is a total BHP of 900, and the 900 BHP make up air opening size is recommended.
NOTE
These measurements are subject to state and local regulations. The installation of exhaust
fans in a boiler room is not recommended. An exhaust fan can create down draft in the stack
or restrict the burner’s air supply which will result in poor combustion. It is essential that only
fresh air is allowed to enter the combustion air system. Foreign substances, such as
combustible volatiles and lint, in the combustion system can create hazardous conditions.
Flue and Chimney Requirements
A) The flue from the appliance and the joint between this flue and the chimney are sealed to prevent
leakage of combustion products.
B) The top of the flue or chimney shall be higher than any roof within a radius of 10 meters.
C) Checks are made to ensure that the chimney is suitable for burner and that the proposed
installation complies with the local authority and other regulations covering such installations.
D) If more than one appliance is connected to a common flue or chimney the cross-section of the
chimney should be adequate for the total volume of combustion products from the appliances.
E) The total horizontal run of the boiler flue should not exceed 25% of the total vertical rise. There
should have a angle more than 15 degrees for the horizontal run. Reducing the resistance of the
combustion products and avoid rusting by accumulating condensation in flue.
F) The installer should check the draft with a meter at -.02-.04” W.C. pressure (-0.508 to -1.016mm)
with the burner off. If the pressure is too low, a balancing damper should be located close to the
flue outlet to regulating the pressure of the draft.
Water Supply
A. General
The operator should be familiar with this part before attempting to place the unit into operation.
Although it is of prime importance, the subject of water supply and treatment cannot adequately be
covered in this manual. For specific information or assistance with your water treatment requirements,
contact your boiler service and parts representative.
Feed water equipment should be checked and ready for use. Be sure that all valves, piping, boiler
feed pumps, and receivers are installed in accordance with prevailing codes and practices.
Water requirements for steam boilers are essential to boiler life and length of service. It is vital that
care be taken in placing the pressure vessel into initial service. The waterside of new boilers and new
or remodeled steam or hot water systems may contain oil, grease or other foreign matter. A method of
boiling out the vessel to remove the accumulations is described later in this part.
Boilers, as a part of a hot water system, require proper water circulation. The system must be
operated as intended by its designer in order to avoid thermal shock or severe, possibly damaging,
stresses from occurring to the pressure vessel.
B. water treatment
Feed water contains solids and dissolved gases. These may promote incrustation of scale; foaming,
priming, surging, and solids in steam; corrosion and pitting; or caustic embrittlement. To prevent this,
feedwater must be studied individually and treated accordingly by reputable professionals
specializing in this field. It is strongly recommended that a competent water treatment company be
