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8.1.3 Burner tray (dis)assembly
1. Break the gas supply at the control valve;
2. Remove the glass, the log set, grid and burner tray cover;
3. Detach the gas connection at the 8 mm nut and olive;
4. Unscrew the burner assembly and take them out of the combustion chamber.
8.1.4 Gas control block
1. Unscrew and remove the pilot system from its support and the burner plate;
2. Disconnect the ignition/spark cabel;
3. Disconnect the thermocouple from the pilot system;
4. Disconnect the gas connection from the pilot system. Mind the injector: it’s unattached;
5. The pilot system can now be removed;
6. To assemble the pilot system again, follow the steps above in reversed order.
8.2 Propane conversion
For conversion from propane to natural gas, you have to order a complete new propane
burner unit. Contact your supplier and give the serial number from the data plate.
8.3 Combustion test
A BS7967 combustion analysis check should be carried out using an analyser to
BS7927 positioned in the flue outlet.
Ratio CO/CO2 should be less than 0.01 within 30 minutes (100 ppm CO per 1% CO2).
A reading of CO in the room centre should give a rise of less than 9ppm over ambient,
peak reading.
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