British Gas British Gas 330 heat only (330)
Heat only, natural gas
Combustion figures
| Figure | Natural gas (G20) |
|---|---|
CO₂ at high rate More infoHide infoBurner CO₂ from Tables 2 and 4. The combustion check (MI 11.8) and gas valve setting (MI 13.5) give 9.1% ± 0.3 at maximum with the front and inner casing panels off. Range rated by fan setting: maximum is the rated output on the data label, factory set at 18 kW. |
|
CO₂ at low rate More infoHide infoFrom MI 13.5, at minimum (fan 1200 rpm, display flashing 12), with the front and inner casing panels off. | 9.1% +0.3 −0.3 |
Maximum CO | Not given in MI |
CO/CO₂ ratio | Not given in MI |
O₂ | Not given in MI |
Working inlet pressure More infoHide infoSteady inlet working pressure at the boiler from the governed meter (MI 1.3). At the gas valve inlet test point with the boiler at full rate (MI 10.6). |
|
Gas rate at maximum More infoHide infoApproximate gas rates for each range rated output (Tables 2 and 4). Factory set at 18 kW. Minimum: 0.67 m³/h (Table 2). Check at least 10 minutes after the burner has lit. |
|
From 0020008877-04 08.06
Enter service mode for high and low rate
High rate
Steps not added yet. Follow the MI.
Low rate
Steps not added yet. Follow the MI.
Ending the test: follow the MI.
Models and GC numbers
| Model | GC number | Gas |
|---|---|---|
| 330 | 41-047-75 | NG |
Source: British Gas 330 High Efficiency Condensing Boiler Instructions for Use, Installation and Servicing, 0020008877-04 08.06.
Sections: 1.3 Gas Supply; 1.4 Technical Data (Table 2); 10.5 Range Rating (Table 4); 10.6 Testing - Gas; 11.8 Combustion Check; 13.5 Gas Valve.
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Check these figures against the MI for the appliance in front of you, matched by GC number and manual date. Combustion work needs a calibrated analyser and a Gas Safe registered engineer.