Electrical Requirements; Gas Supply - FULTON FB-S series Installation, Operation & Maintenance Manual

Fulton Boiler FBS Series
B) Main steam valve
The main steam valve is installed on the top of the boiler. It will be connected with the steam pipework
to all kinds of equipments which consume steam. There should be enough outlet for drain off and
flush in the pipework.
C) Safety valve
The safety valve is installed on the top of the boiler. Its setting was finished by the manufacturer
before delivery; do not attempt to change the setting without permission of Fulton or authority. The
function of the safety valve is avoid the pressure in the boiler exceed the design value. Any
equipment connect with the boiler should can run under the boiler pressure. If not, another safety
valve must be used for protecting it.
CAUTION
The safety valve supplied by manufacturer can only protect the boiler, it can not protect any
other equipments in the system.
D) Water level gauge
Two plate water level gauges are equipped to Fulton boiler FB-S model. Boiler operator can see the
water level in side the boiler from these gauges. Both of them are connected to a 1/4" copper pipe
which drain water can flow through to assistant pipework.

Electrical Requirements

A) Connect wiring as shown in the wiring diagram which is furnished inside the electrical control
panel box.
B) Electrical power available is usually 230/460 volt, 3 phase, 60 HZ or 380 volt, 3 phases, 50 HZ.

Gas Supply

Natural gas is the standard gas for the gas boiler. Special requirements on request- i.e. liquid
petroleum gas, town gas.
Gas must be supplied at a pressure high enough to overcome the pressure loss in the burner gas
train and furnace while running at full input. This pressure is different from the kinds of the burner
used for the boiler. On FB-S1-1.0 to FB-S3-1.0, the pressure of supply gas is 50-100 mbar.; on
FB-S4-1.0 to FB-S6-1.25, the pressure of supply gas is 100-130 mbar, the pressure must be checked
and make sure it is high enough. If it is too low, a gas booster must be used in the gas supply system.
When a gas booster is used, the gas pressure at the booster inlet must not fall below 100 mbar. The
booster should be installed as near to the burner as possible. It should be positioned on a firm, flat,
horizontal surface using anti-vibration mountings. All connecting pipework should be well supported
and accurately positioned in order to avoid stressing the booster casting. The use of flexible
connections, which reduce both pipework stresses and transmitted noise, is strongly recommended.
The gas supplier should be asked to recommend the size of pipework between the meter and the
booster to ensure that the required pressure and flow are available.
The gas supply pipework to the boiler must be appropriate to local conditions and must be
constructed and installed in compliance with appropriate Codes and Standards. It should be of
sufficient size to satisfy the pressure and volume flow requirements of the burner under all firing
conditions. Checks should be made to ensure that all meters and other components are appropriately
rated for the maximum gas flow rate anticipated.
NOTE
It is essential that a manual isolation valve is fitted upstream of the gas control train to allow
the burner to be isolated for maintenance. The size of this valve should not be less than that of
the bruner control train in order to avoid any restriction in gas flow.
9 FBS 01/05