Baxi EcoBlue Plus Combi (24, 28, 33)
Combi, natural gas
Combustion figures
| Figure | Natural gas (G20) |
|---|---|
CO₂ at high rate More infoHide infoChecked after running the boiler for several minutes in chimney sweep mode, case front panel fitted. The valve is checked and set at maximum DHW input. | 8.7% ± 0.2 |
CO₂ at low rate More infoHide infoChecked at minimum input in chimney sweep mode. If CO₂ is reset at one rate, recheck the other. | 8.4% ± 0.2 |
Maximum CO More infoHide infoAt maximum DHW input and at minimum input, at the flue gas test point. | < 350 ppm |
CO/CO₂ ratio More infoHide infoAt maximum DHW input and at minimum input. | < 0.004 |
O₂ | Not given in MI |
Working inlet pressure More infoHide infoFrom Fig. 41a. At the gas meter: 19–23 mbar. The text of 7.5.1 and fault finding chart G say the working pressure at the gas cock test point must be at least 17 mbar, while Fig. 41a gives 18–22 mbar there. 11.2 says the preferred minimum is 20 mb. Checked at maximum rate. Permissible pressure drop across system pipework ≤ 1 mbar. |
|
Gas rate at maximum More infoHide infoNatural gas (G20), after 10 minutes, with all other appliances and pilot lights off. |
|
Flue integrity More infoHide infoAt the air inlet test point, boiler at maximum rate. | O₂ ≥ 20.6% CO₂ < 0.2% |
From 7219706 - 03 (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 Plus 24 Combi ErP | 47-077-08 | NG |
| EcoBlue Plus 28 Combi ErP | 47-077-09 | NG |
| EcoBlue Plus 33 Combi ErP | 47-077-10 | NG |
Source: Baxi EcoBlue Plus Combi 24 - 28 - 33 Installation and Service Manual, 7219706 - 03 (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); 11.2 Fault Finding.
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.