
JGASUK-IOMM-2015-2
Fulton Ltd
Page 27
MAINTENANCE - 4
4.2.3
2ND LOW WATER LEVEL CHECK
1.
Ensure that the boiler is firing, the feedwater pump is not running and that the water level is
between Pump On and Pump Off.
2. Switch off the pump using the Pump Interrupt/Pump Run switch.
3. Allow the water level to lower by natural evaporation to the 1st Low Water level.
4. Verify that the Low Water lamp illuminates, the Low Water audible alarm sounds and that the
burner stops firing. Do not allow the water level to drop below the bottom of the water level
gauge (sight glass).
If the test fails, turn the boiler off and ensure that the fault is rectified before the boiler is
used.
5. Allow the water level to lower further by natural evaporation below the 2nd Low Water level.
Do not allow the water level to drop below the bottom of the water level gauge.
6. Verify that the Low Water Reset switch illuminates.
If the test fails, turn the boiler off and ensure that the fault is rectified before the boiler is
used.
7. Switch on the pump using the Pump Interrupt/Pump Run switch.
8.
Verify that the pump runs and refills the boiler. When the water level rises above the
1st Low Water level, verify that the 1st Low Water lamp extinguishes but the burner fire
sequence does not start.
9. Press the Low Water Reset switch- Verify that the 2nd Low Water lamp and audible alarm
extinguishes and the burner starts.
10. Verify that the pump continues to run until the Pump Off level is reached and then switches off.
Figure. 20 - Pump Interrupt Switch
Summary of Contents for J Series
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