Fulton Boiler FBS Series
21 FBS 01/05
3. DAILY OPERATING TESTS
CAUTION
If any of the following tests fail to function as described, shut down the boiler immediately and
consult the factory.
With the burner firing, carry out the following tests:
NOTE
Ensure the correct water level is maintained during pressure build up. If any part of the
equipment is not operating correctly, the fault should be investigated before the boiler is used.
Ensure all blowdown pipework is safe and discharged to a blowdown receptacle.
Flame Sensor (UV Photo Cell) Check.
Remove the burner UV photocell from its plug-in connection (on the side of the burner) and cover the
detection window to exclude all light. The burner control should immediately (2-3 seconds gas, 5
seconds oil) go to a lockout/flame failure condition and will require manual resetting. Clean the UV
photocell with soft cloth before replacing it.
Pump Check.
(a) Lower the water level in the boiler, either by evaporation or by opening the main blowdown valve
with the key provided.
(b) Observe the water level in the water level gauges and, as the water level falls, check that the
feedwater pump starts.
(c) SHUT the main blowdown valve if opened, and ensure that the feedwater pump continues to fill
the boiler to the correct level then switch off.
1
st
Low Water Check.
(a) Turn the Pump On/Off Switch on the boiler control panel to the PUMP OFF position.
(b) Lower the water level in the boiler, either by evaporation or by opening the main blowdown valve
with the key provided.
(c) Observe the water level in the water level gauges and check that, as the water level reached the
low water position:
The 1
st
Low Water alarm sounds.
The 1
st
Low Water indicator lamp illuminates.
The burner stops firing.
(d) SHUT the main blowdown valve if opened, and turn the Pump On/ Off Switch to the PUMP ON
position, Check that:
The feedwater pump starts.
The water level in the boiler is restored to the normal working position.
The 1
st
Low Water indicator lamp extinguishes and the alarm cancels.
The burner automatic start sequence commences.
2
nd
Low Water Check.
(a) Repeat the procedure described in above section but allow the water level to continue to fall,
either by evaporation or maintaining the main blowdown valve open. Before the level falls below
the level of the water level gauge, check that the 2
nd
Low Water Alarm/Reset Switch illuminates,
the alarm sounds and the burner shuts down.
(b) SHUT the main blowdwon valve (if opened).
(c) Set the Pump On/ Off Switch to the PUMP ON position.
(d) Check that:
The feedwater pump starts, restores the water level to a safe working level, then stops.
The 1
st
Low Water alarm cancels.
The 1
st
Low Water indicator lamp extinguishes but the burner does not start.
The 2
nd
Low Water alarm continues to sound.
The 2
nd
Low Water Alarm/Reset Switch remains illuminated.
(e) Press the 2
nd
Low Water Level Alarm/Reset switch.
(f) Check that:
The 2
nd
Low Water alarm cancels.
The 2
nd
Low Water Alarm/Reset Switch extinguishes.
The automatic burner firing sequence commences.
