Fulton Boiler FBS Series
FBS 01/05 22
To reduce the possible down time and loss of pressure to steam, load the tests detailed can be
accomplished by isolating the feed pump using the pump ON/OFF switch on the boiler control
panel. Allowing the water level to fall by evaporating steam to the system.
Once the 1
st
Low Water Level Alarm is activated the water level can be lowered to the 2
nd
Low
Water Level by using the main blowdown valve.
When the 2
nd
Low Water Alarm sounds CLOSE the blowdown valve, turn the feedwater Pump
On/Off switch to PUMP ON.
Once the 1
st
Low Water Level cancels the burner should remain off, but the 2
nd
Low Water Alarm
should continue to sound, reset the 2
nd
Low Water Alarm. The burner should start and the pump
restore the water level to normal and stop.
NOTE
This procedure requires a longer attendance time by the boiler operator, but reduces the
pressure loss to the system.
4. BLOWNDOWN PROCEDURE
In order to keep the boiler and water level guage pipework clear and free from sludge and scale
build-up, regular blowdown should be carried out.
Boiler Blowdown
(a) Fully OPEN the main blowdown valve, using the key provided, for a minimum of 10 seconds, see
note.
(b) SHUT the main blowdown valve.
NOTE
As well as removing sludge from the boiler, a second and equally important function is to
maintain the TDS (totally dissolved solids) level to within the required limits. The amount of
blowdown, and hence time required, it dependent on the amount of TDS in the raw water
supply, the percentage condensate return, water treatment chemicals added and the number
of the hours a day operation. In order to establish the required blowdown rate, consult your
water treatment specialist who will recommend a water treatment program in terms of
appropriate chemicals and the required blowdown rate which takes these factors into
account.
WATER LEVEL GAUGE BLOWDOWN
(A) Blowdown the water level gauge set by opening the gauge blowdown valve A and closing the top
and bottom gauge valves B and C in sequence.
(B) On completion of the blowdown procedures, ensure all isolation valves are open, and all
blowdown valves are SHUT, (all handles vertical).
5. TO SHUT DOWN THE BURNER
Short Term (Hours)
Turn the Burner On/Off/Reset Switch on the Control Panel to OFF.
The burner will stop firing, post-purge and then stop.
Medium Term (Days)
(a) Turn the Burner On/Off/Reset Switch on the Burner Control Panel to OFF.
The burner will stop firing, post-purge and then stop.
(b) SHUT the main steam valve.
(c) SHUT the water feed valve.
(d) Turn the power isolator On/Off switch on the Boiler Control Panel to OFF.
Note: Ensure the boiler water treatment levels for dissolved oxygen are within the specified limits.
Long Term (Weeks)
To store the boiler in a corrosion-free situation there are three practical solutions as follows:
(a) Fully flood the boiler to exclude a much air as possible.
(b) Drain the boiler completely.
