Evaporation Checks; Flame Sensor Test - FULTON J Series Installation, Operation And Maintenance Manual

MAINTENANCE - 4
4.6

EVAPORATION CHECKS

With the boiler running under normal load conditions, and the pump stopped having just
completed a refill cycle:
a) Ensure that the boiler water level is correct.
b) Switch the pump OFF at the pump interrupt/pump run switch.
The water level in the boiler will lower through natural evaporation. When the level nears the
bottom of the water level gauge (sight glass), the first low water alarm will sound, the low water
alarm lamp will illuminate and the burner will shut down.
If it is required to check the second low water alarm, wait a further period for the LOW WATER
RESET switch to illuminate.
When the check is complete, proceed as follows:
c) Switch the pump ON at the pump interrupt/pump run switch.
d) Press the low water reset switch. The pump will start to refill the boiler.
If the pump starts to run at any time during the test then the test must be abandoned and
restarted from the beginning.
4.7

FLAME SENSOR TEST

This test checks the operation of the flame
safeguard sensor.
1. Ensure that the burner is firing.
2. Remove the flame sensor from its tube
on the top of the burner.
3. Cover the sensor glass.
4. Verify that the burner goes out (the
fan will run on for a short time but the
flame should go out).
If the test fails, turn the boiler off and
ensure that the fault is rectified before
the boiler is used.
5. Return the flame sensor to its tube on
the top of the boiler.
6. Fire the burner to ensure correct
operation.
Page 30
Figure. 25 - Flame Sensor Removal
Fulton Ltd
JGASUK-IOMM-2015-2