Baxi Platinum Combi HE A (24, 28, 33, 40 HE A)
Combi, natural gas
Combustion figures
| Figure | Natural gas (G20) |
|---|---|
CO₂ at high rate More infoHide infoMeasured at the flue adaptor test point in Calibration Mode at maximum rate, after running the boiler for several minutes. Same figure in 13.1 and 15.1. | 8.7% ± 0.2 |
CO₂ at low rate | 8.4% ± 0.2 |
Maximum CO | Not given in MI |
CO/CO₂ ratio | Less than 0.004 |
O₂ | Not given in MI |
Working inlet pressure More infoHide infoMeasurement point not stated in MI. Technical data gives inlet pressure 20 mbar; 11.3 says the gas supply pressure should be 20 mb; 18.1 says the preferred minimum gas pressure is 20 mbar. The fault finding chart (18.0, chart I) says to check the gas supply pressure is greater than 10 – 11 mbar. | 20 mbar |
Gas rate at maximum More infoHide infoNatural gas G20, after 10 minutes, with other appliances and pilot lights off. 11.3 calls these approximate values. |
|
From UK Comp No 5121651 - Iss 6 - 8/09
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 A | 47-075-31 | NG |
| Baxi Platinum Combi 28 HE A | 47-075-32 | NG |
| Baxi Platinum Combi 33 HE A | 47-075-33 | NG |
| Baxi Platinum Combi 40 HE A | 47-075-34 | NG |
Source: Baxi Platinum Combi HE A Range installation & servicing instructions, UK Comp No 5121651 - Iss 6 - 8/09.
Sections: 4.1 Technical data; 11.3 Checking; 13.1 Annual servicing; 15.1 Checking the CO₂; 18.1 Initial fault finding checks; 18.0 Fault finding chart I.
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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.