Baxi Baxi Platinum Combi HE (24 HE, 28 HE, 33 HE)
Combi, natural gas
Combustion figures
| Figure | Natural gas (G20) |
|---|---|
CO₂ at high rate More infoHide infoIn Calibration Mode at maximum rate, at the flue adaptor test point, after running the boiler for several minutes. Adjusted with the Max Rate screw on the gas valve. | 8.7% ± 0.2 |
CO₂ at low rate More infoHide infoIn Calibration Mode at minimum rate (display reads 0). Adjusted with the Min Rate screw on the gas valve. If CO₂ is reset at either rate, recheck the other rate. | 8.4% ± 0.2 |
Maximum CO | Not given in MI |
CO/CO₂ ratio | Not given in MI |
O₂ | Not given in MI |
Working inlet pressure More infoHide infoMeasurement point not stated in MI. Technical data gives inlet pressure 20 mbar and section 9.3 says the gas supply pressure should be 20mb. Fault finding: section 16.1 gives a preferred minimum gas pressure of 20 mbar, and chart I says to check the supply pressure is greater than 10–11 mbar. | 20 mbar |
Gas rate at maximum More infoHide infoTechnical data figures, after 10 minutes. Section 9.3 gives approximate values of 2.6, 3.1 and 3.6 m³/h for the 24, 28 and 33 models, measured in Calibration Mode at maximum. |
|
From Comp No 5116280 - Iss 2 - 11/05
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 |
|---|---|---|
| Baxi Platinum Combi 24 HE | 47-075-20 | NG |
| Baxi Platinum Combi 28 HE | 47-075-21 | NG |
| Baxi Platinum Combi 33 HE | 47-075-22 | NG |
Source: Baxi Platinum Combi HE Range installation & servicing instructions, Comp No 5116280 - Iss 2 - 11/05.
Sections: 4.0 Technical Data; 9.3 Checking; 13.1 Checking the CO2; 16.1 Initial Fault Finding Checks; 16.0 Fault Finding (chart I).
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.