2Nd Low Water Level Check; Evaporation Check - FULTON RB Series Installation, Operation And Maintenance Manual

Fulton Ltd
4.4.3

2ND LOW WATER LEVEL CHECK

1. Complete steps 1 to 4 of the 1st Low Water Level Check.
2. Allow the water level to lower by natural evaporation or manual blowdown below the 2nd
Low Water level.
Do not allow the water level to drop below the bottom of the water level gauge (sight glass).
3. Check:
a) 2nd Low Water/Alarm Reset switch illuminates
b) 2nd Low Water audible alarm sounds
If the test fails, turn the boiler off and ensure that the fault is rectified before the boiler is
used.
4. Switch on the pump using the Pump on/off switch.
5. Check:
a) Feedwater pump starts and refills the boiler
b) Water level rises above the 1st Low Water level
c) 1st Low Water lamp extinguishes
d) 1st Low Water audible alarm silences
e) Burner does not start
f) 2nd Low Water audible alarm continues to sound
6. Press the 2nd Low Water/Alarm Reset switch
7. Check:
a) 2nd Low Water/Alarm Reset switch extinguishes
b) 2nd Low Water audible alarm silences
c) Burner automatic fire sequence starts
8. Verify that the pump continues to run until the Pump Off level is reached and then switches off.
4.4.4

EVAPORATION CHECK

This check may be required by your insurance inspector as part of the annual inspection.
To perform the evaporation check, follow the procedure in Section 4.4.3 - 2nd Low Water Level
check allowing water to lower by natural evaporation and not by manual blowdown.
RB-RBC-IOMM-2015-1
MAINTENANCE - 4
Page 31