Baxi Platinum Combi HE (24 HE, 28 HE, 33 HE, 40 HE)
Combi, natural gas
Combustion figures
| Figure | Natural gas (G20) |
|---|---|
CO₂ at high rate More infoHide infoChecked in Calibration Mode at maximum rate, at the flue adaptor test point, after running the boiler for several minutes. Case position not stated in MI. | 8.7% ± 0.2 |
CO₂ at low rate More infoHide infoChecked in Calibration Mode at minimum rate (display reads ’ 0’). 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; commissioning (11.3) says the gas supply pressure should be 20 mb; fault finding (18.1) gives a preferred minimum of 20 mbar, and fault finding chart I says check the supply pressure is greater than 10–11 mbar. | 20 mbar |
Gas rate at maximum More infoHide infoAfter 10 minutes, with other appliances and pilot lights off, in Calibration Mode at maximum rate. Commissioning (11.3) calls these approximate values. |
|
From UK Comp No 5121651 - Iss 2 - 3/07
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 | 47-075-27 | NG |
| Baxi Platinum Combi 28 HE | 47-075-28 | NG |
| Baxi Platinum Combi 33 HE | 47-075-29 | NG |
| Baxi Platinum Combi 40 HE | 47-075-30 | NG |
Source: Baxi Platinum Combi HE Range Installation & Servicing Instructions, UK Comp No 5121651 - Iss 2 - 3/07.
Sections: 4.1 Technical Data; 11.3 Checking; 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.