Setting Burner Controls-Low/High Fire (40J-60J); Setting Burner Controls-Fully Modulating (30J-60J) - FULTON J Series Installation, Operation And Maintenance Manual

INSTALLATION - 2
2.13.2 SETTING THE BURNER CONTROLS
The correct setting for low fire/high fire operation is made by making adjustments to the two stage
solenoid valve and the low fire steam pressure switch.
1. Isolate the main gas valve by closing the valve in the gas input line.
2. Screw the pilot gas governor fully down (governor open).
3. Start the burner and where possible meter the pilot gas rate (ideally the pilot gas rate should
be 10% of the full gas rate).
4. Check the ignition and pilot stability several times.
Record the pilot gas pressure.
5. Open the main gas isolating valve.
6. Set the gas input to the boiler for correct input on high fire. This adjustment should be done
where possible by using the gas meter.
Adjust the main and secondary air gates to obtain optimum combustion conditions.
7. Adjust the low fire steam pressure switch to cut out at approximately 5 psi below the setting of
the main steam pressure control.
8. Adjust the two-stage solenoid valve to obtain a low fire gas input of approximately 80% of high
fire.
Leave the air gate adjustments as for high fire.
2.13.3 SETTING THE BURNER CONTROLS
The correct setting for fully modulating operation is made by adjusting the parameters via the
Siemens LMV burner controller.
All adjustments need to be carried out by a suitably trained service engineer.
All parameter adjustments are password protected.
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LOW/HIGH FIRE (40J - 60J)
FULLY MODULATING (30J - 60J)
Fulton Ltd
JGASUK-IOMM-2015-2