Glow-worm EASICOM 3 combi (24c, 28c)
Combi, natural gas
Combustion figures
| Figure | Natural gas (G20) |
|---|---|
CO₂ at high rate More infoHide infoCheck programme P.01 set to 100, read after 5 minutes at the flue gas analysis point, front casing on or off. The checking tables (MI 7.9.5 and 11.4) give 9.2 ±1 %; the setting table (MI 11.5) gives CO₂ at full load 9.2 ±0.2 %. If the check is out, set it to the setting figure (MI 11.5). |
|
CO₂ at low rate | Not given in MI |
Maximum CO More infoHide infoCO at full load, from the setting table (MI 11.5). The Benchmark combustion chart (Appendix I) uses less than 350 ppm at maximum and minimum rate, and its side box says less than 335 ppm. | ≤ 250 ppm |
CO/CO₂ ratio More infoHide infoFrom the setting table (MI 11.5), at full load. The Benchmark combustion chart (Appendix I) uses less than 0.004 at maximum and minimum rate. | ≤ 0.0027 |
O₂ at high rate More infoHide infoO₂ at full load, from the setting table (MI 11.5). | 4.5 ±1.8 vol. % |
O₂ at low rate | Not given in MI |
Working inlet pressure More infoHide infoMI gives 1.7 ... 2 kPa (17.0 ... 20 mbar), G20, at the measuring nipple on the gas isolator cock, with the boiler at full load in check programme P.01 (with eBUS controller) or P.03 (without). Technical data gives G20 gas supply pressure 20 mbar. |
|
Gas rate at maximum More infoHide infoGas flow at P max., hot water (G20), from the technical data. MI 7.9.1 also has a table of gas rates by Qnw on the data plate, measured at the meter (nominal, +5% and −10%). |
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Flue integrity More infoHide infoAt the air inlet test point, boiler at maximum rate (Benchmark combustion chart, Appendix I). | O₂ ≥ 20.6% CO₂ < 0.2% |
From 0020239562_02 (15.11.2017)
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 |
|---|---|---|
| EASICOM 3 24c | 47-019-50 | NG |
| EASICOM 3 28c | 47-019-51 | NG |
Source: Glow-worm EASICOM 3 24c, 28c installation and maintenance instructions, 0020239562_02 (15.11.2017).
Sections: 2.3 Validity of the instructions; 7.9.1 Checking the gas flow rate; 7.9.2 Checking the gas connection pressure; 7.9.3 Checking the leak-tightness of the flue gas installation; 7.9.5 Checking the CO₂ content; 11.4 Checking the CO₂ content; 11.5 Setting the CO₂ content; Appendix A Check programmes; Appendix I Combustion chart; Appendix K Technical data.
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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.