1St Low Water Level Check - FULTON J Series Installation, Operation And Maintenance Manual

MAINTENANCE - 4
2. Lower the water level by opening the main boiler blowdown valve.
3. Verify that the pump starts to run when the water level reaches the Pump On level.
4. Close the main boiler blowdown valve.
5. Continue to observe the water level in the water level gauge and verify that the pump
continues to run until the Pump Off level is reached and then switches off.
b) If the boiler is firing and under load, lower the water level by evaporation, observing a
pump cycle:
If the pump is running:
1. Observe the water level in the water level gauge.
2. Verify that the pump continues to run until the Pump Off level is reached and then switches
off.
If the pump is not running:
1. Check that the water level in the water level gauge is between Pump On and Pump Off
levels.
2. The water level will lower through natural evaporation.
3. Verify that the pump starts to run when the water level reaches the Pump On level.
4. Continue to observe the water level in the water level gauge and verify that the pump
continues to run until the Pump Off level is reached and then switches off.
4.2.2

1ST 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 below 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. Switch on the pump using the Pump Interrupt/Pump Run switch.
6. Verify that the pump runs and refills the boiler. When the water level rises above the 1st Low
Water level, verify that the Low Water lamp extinguishes, the Low Water audible alarm
silences and the burner fire sequence starts.
7. Verify that the pump continues to run until the Pump Off level is reached and then switches off.
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JGASUK-IOMM-2015-2