Fulton FB-S Horizontal Firetube Boiler - Manual (Page 52)

The Fulton Companies*FB-S Series Manual*Version 2010-0820 rev. 3/5/13
Page 52
Medium Term (days)
a) Turn the Burner On/Off/Reset Switch on the Burner Control Panel to OFF.
b) The burner will stop firing, post-purge and then stop.
c) SHUT the main steam valve.
d) SHUT the water feed valve.
e) 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 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 as much air as possible.
b) Drain the boiler completely.
c) Remove all hand hole and manhole doors.
d) Open all gas/oil-side access doors (refer to the maintenance section)
e) 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 feed pump 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