Fulton Boiler FBS Series
23 FBS 01/05
Remove all hand hole and man hole doors.
Open all gas/oil-side access doors (refer to the maintenance section).
(c) As (b) but also introduce a form of convection heating to the gas/oil and water side. A very
effective solution is to install a string of outdoor-type waterproof light bulbs distributed throughout the
boiler.
6. EVAPORATION TEST
This test may be required by your insurance inspector as part of the annual inspection.
(a) With the burner running, switch off the boiler feedpump and allow the water level in the boiler to
lower by evaporation.
(b) When the water level reaches the 1
st
Low Water position an alarm will sound, the 1
st
Low Water
indicator lamp will illuminate and the burner will stop.
(c) Allow the evaporation process to continue until the 2
nd
Low Water alarm sounds and the 2
nd
Low
Water Alarm/Switch illuminate.
(d) Switch the feed pump to the PUMP & BURNER ON position.
(e) The water level will be restored to normal working level, the 1
st
Low Water indicator lamp will
extinguish and the alarm will cancel.
(f) Press the 2
nd
Low Water Alarm/Reset switch.
(g) The 2
nd
Low Water Alarm/Reset switch will extinguish, the alarm will cancel and the burner will
start.
NOTE
Because the burner shuts down during this test it is possible that the steam load will rapidly
decrease the pressure in the boiler causing a premature 2
nd
Low Water alarm. This is normal
and typical of ‘priming’ where a boiler tries to maintain an overload condition resulting in
unstable water conditions.
7. FAULT FINDING
Before calling the Fulton Service Department, check the following:
(a) Gas isolating valve(s) OPEN (gas and dual fuel burners).
(b) Oil isolating valve(s) OPEN (oil and dual fuel burners).
(c) Oil storage tank contains an adequate level of fuel.
(d) Oil filter(s) are not blocked.
(e) Water feed line from feed tank/hotwell is OPEN.
(f) Water feed isolating valve on boiler is OPEN.
(g) All blowdown valves are SHUT.
(h) Fuses or MCBs in the mains supply are not tripped.
(i) Thermal overload on the pump motor is not tripped.
(j) Thermal overload on the burner motor is not tripped.
(k) Normal water level is visible in the water level gauges.
(l) Feed pump is primed and not air locked.
(m) Front door proof of closure microswitch is closed.
Before contacting the Fulton Service Department, have the following information available:
(a) The model and size of the boiler.
(b) The boiler serial No.
(c) The model and type of burner fitted.
