Flame Sensor Test; Draining The Boiler - FULTON J Series Installation, Operation And Maintenance Manual

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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.
4.8

DRAINING THE BOILER

Your local regulations could state boiler water above 43
Boilers with manual blowdown valves
1. Ensure the boiler is cold.
2. Isolate the boiler electrics at the isolator on the control box door.
3. Isolate the feedwater tank and the feedwater pump.
4. Open the main steam valve and the boiler drain valve.
5. Open the drain valve on the blowdown vessel.
6. Open all valves in the drain lines.
Boilers with automatic blowdown systems
1. The boiler should not be under pressure.
2. The boiler should be cold.
3. Close the blowdown isolation valve.
4. Using a screwdriver located as shown 'A' in FIG. 29, push up and make a quarter turn, this will
lock the button in position and open the blowdown valve.
5. Using the blowdown isolation valve to throttle the flow, drain the boiler.
Note: Skid units and plant rooms have internal drainage systems which require the same procedures.
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CAUTION
ALWAYS check your local regulations.
J DUAL FUEL MANUAL 02 2014 ISSUE 9
FIG. 28 FLAME SENSOR REMOVAL
C must not be discharged into the drain.
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