Baxi EcoBlue Advance Combi (24, 28, 33, 40)
Combi, natural gas
Combustion figures
| Figure | Natural gas (G20) |
|---|---|
CO₂ at high rate More infoHide infoCase front panel fitted, system cold, after running the boiler for several minutes in chimney sweep mode. The manual says the valve is checked and set at maximum DHW input (setting 2). | 8.7% ± 0.2 |
CO₂ at low rate More infoHide infoMinimum input (setting 1) in chimney sweep mode. | 8.4% ± 0.2 |
Maximum CO More infoHide infoChecked at maximum and at minimum rate, at the flue gas test point, after the reading has stabilised. | < 350 ppm |
CO/CO₂ ratio More infoHide infoChecked at maximum and at minimum rate. | < 0.004 |
O₂ | Not given in MI |
Working inlet pressure More infoHide infoAppliance inlet is the gas cock test point (Fig. 41a). At the gas meter: 19–23 mbar. Section 7.5.1 also says the working pressure at the inlet test point on the gas cock, at maximum rate, must be at least 17 mbar, and the technical data gives a nominal inlet pressure of 20 mbar. Permissible drop across system pipework ≤ 1 mbar. |
|
Gas rate at maximum More infoHide infoNatural gas (G20), after 10 minutes, with any other appliances and pilot lights turned off. |
|
Flue integrity More infoHide infoAt the air inlet test point, boiler at maximum rate. | O₂ ≥ 20.6% CO₂ < 0.2% |
From 7219715 - 02 (09/16)
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 |
|---|---|---|
| EcoBlue Advance 24 Combi ErPD | 47-077-14 | NG |
| EcoBlue Advance 28 Combi ErPD | 47-077-15 | NG |
| EcoBlue Advance 33 Combi ErPD | 47-077-16 | NG |
| EcoBlue Advance 40 Combi ErPD | 47-077-17 | NG |
Source: Baxi EcoBlue Advance Combi 24 - 28 - 33 - 40 Installation and Service Manual, 7219715 - 02 (09/16).
Sections: 3.1 Technical Data; 7.4.1 Checking Combustion - Chimney Sweep Mode; 7.5.1 Check the Operational (Working Gas Inlet Pressure & Gas Rate); 10.1 General; 10.3.25 Setting the Gas Valve (CO₂ Check).
Spotted something wrong? Tell us.
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.