Fulton FB-S Horizontal Firetube Boiler - Manual (Page 49)

The Fulton Companies*FB-S Series Manual*Version 2010-0820 rev. 3/5/13
Page 49
b) Pump Check
i. Lower the water level in the boiler, either by evaporation or by opening
the main blowdown valve with the key provided.
ii. Observe the water level in the water level gauges and, as the water
level falls, check that the feed water pump starts.
iii. SHUT the main blowdown valve if opened, and ensure that the feed
water pump continues to fill the boiler to the correct level then switch
off.
c) 1
st
Low Water Check
i. Turn the Pump On/Off Switch on the boiler control panel to the PUMP
OFF position.
ii. Lower the water level in the boiler, either by evaporation or by opening
the main blowdown valve with the key provided.
iii. Observe the water level in the water level gauges and check that, as
the water level reached the low water position:
a. The 1
st
Low Water alarm sounds
b. The 1
st
Low Water indicator lamp illuminates
c. The burner stops firing
iv. SHUT the main blowdown valve if opened, and turn the Pump On/ Off
Switch to the PUMP ON position, Check that:
a. The feed water pump starts
b. The water level in the boiler is restored to the normal
working position
c. The 1
st
Low Water indicator lamp extinguishes and the
alarm cancels
d. The burner automatic start sequence commences
d) 2
nd
Low Water Check
i. 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.
ii. SHUT the main blowdown valve (if opened).
iii. Set the Pump On/ Off Switch to the PUMP ON position.
iv. Check that:
a. The feed water pump starts, restores the water level to a
safe working level, then stops