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9.1.4 Gas control block
1. Unscrew the pilot system from the support;
2. Unscrew and remove the pilot system from the burner plate;
3. Disconnect the ignition/spark cabel (bougiekabel);
4. Disconnect the thermocouple from the pilot system;
5. Disconnect the gas connection from the pilot system. Mind the
injector: it is unattached;
6. The polit system can now be removed;
7. To assemble the pilot system again, follow the steps above in reversed
order.
9.2 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 when you order.
9.3 Combustion tests
A BS7967 combustion analysis check should be carried out using an
analyser to BS7927 positioned in the flue outlet.
A Ratio of 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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