FULTON VMP Series - Dual Fuel Burner Initial Firing and Inspection; Gas Burner Initial Firing and Inspection

VMP-IOMM-2018-2
Fulton Ltd
Page 24
COMMISSIONING - 3
3.1.1 BOILER INSPECTION AND INITIAL FIRING DUAL FUEL BURNER
Dual fuel boilers that use a common burner assembly and have a switch change over from one
fuel to another, have to be commissioned on the basis of a primary fuel (usually gas), with the
secondary fuel as a back-up.
The secondary fuel then has to be commissioned using the air settings for the primary fuel.
In practice this means adjusting the fuel input of the secondary fuel to achieve acceptable
combustion.
As more air is required for oil combustion the consequences are that when oil is the secondary
fuel there will be a small reduction in the fuel input rate.
3.1.2 BOILER INSPECTION AND INITIAL FIRING GAS BURNER
1. Ensure that the boiler has been washed out after installation. It is advisable to conduct a water
analysis before operating the boiler.
Examine the probes in the water bottle and the boiler shell and record their lengths.
Replace any damaged probes.
2. Remove the burner and check the electrodes have not been damaged and that their settings
arecorrect.Iftheburneristtedwithaamedetector,removeitandcheckfordamage.
3. Check that the burner is the correct type for use with the gas being supplied.
4. Replace the burner and reconnect the gas connection, ensuring these connections are tight.
Reconnecttheignitionleadsandreplacetheamedetector.
5. Ensure that all wiring connections are correct and that all terminal screws are tight.
6. Abarometrictypedraughtstabiliser,ifttedintheue,shouldbesetforadraughtof
- 0.025 mbar to - 0.05 mbar of water bottle pressure with the burner off.
7. Open all the valves in the feedwater line.
Close the isolating valve on the discharge side of the feedwater pump. Remove the priming
plugfromthepumpheadandslowlyllthepumpwithwater.Replacetheprimingplugand
tighten securely.
8. Check the correct rotation of the feedwater pump on the motor fan cover.
Start the feedwater pump and check the direction of rotation.
Vent the pump by means of the vent valve in the pump head. At the same time, open the
discharge isolating valve a little. Continue to vent the pump. At the same time, open the
discharge isolating valve a little more.
Close the vent valve when a steady stream of water runs out of it.
Completely open the discharge isolating valve.
Thebypassvalvelocatedinthedrainplugmaybeopenedduringthellingprocedure,close
the bypass when the operation is stable.
DO NOT ALLOW THE PUMP TO RUN DRY.
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