Ideal Checked against MI

Ideal Vogue Max System (15, 18, 26, 32)

System boiler, natural gas

Combustion figures

Figure	Natural gas (G20)
CO₂ at high rate More infoHide info Table 1 (CO₂ content, Max. CH). The air/gas ratio valve is factory set and must not be adjusted during commissioning.	15 9.4% ± 0.7 18, 26, 32 9.5% ± 0.7
CO₂ at low rate More infoHide info Table 1 (CO₂ content, Min. CH).	15 8.3% ± 0.7 18 8.5% ± 0.7 26 8.4% ± 0.7 32 8.2% ± 0.7
Maximum CO More infoHide info At maximum and minimum rate, from the commissioning flowchart (MI p. 73).	Less than 350 ppm
CO/CO₂ ratio More infoHide info The commissioning flowchart (MI p. 73) gives less than 0.0040 at maximum and minimum rate. The servicing schedule (MI 3.1, step 10) prints the limit as 0.004% with a percent sign. Both shown as printed.	Flowchart less than 0.0040 Servicing schedule 0.004%
O₂	Not given in MI
Working inlet pressure More infoHide info Checked at the inlet gas pressure test point on the gas service cock, boiler in service mode maximum rate. At the meter outlet: 19 mb minimum (allowing 1 mb loss across the pipework). The gas cock can lower the reading at its test point (graph in MI 1.8). Table 1 gives the gas supply as 2H – G20 – 20 mbar. MI 1.8 says the boiler can give full output at inlet pressures as low as 14 mb, but other appliances may not.	Appliance inlet 18 mb minimum
Gas rate at maximum More infoHide info Table 2 gas consumption, calculated using 38.7 MJ/m³ gross (34.9 MJ/m³ nett). At minimum: 15: 0.310, 18: 0.372, 26: 0.537, 32: 0.661 m³/h. Check at the gas meter at full output with no other appliances in use.	15 1.559 m³/h 18 1.869 m³/h 26 2.695 m³/h 32 3.314 m³/h
Flue integrity More infoHide info At the air inlet test point (where available), boiler at maximum rate. Where no air inlet test point is provided, the MI says a flue integrity check with the analyser is not possible and the flue must be checked visually instead.	O₂ ≥ 20.6% or CO₂ ≤ 0.2%

From UIN 219005 A03 (February 2019)

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
Vogue Max System 15	41-796-22	NG
Vogue Max System 18	41-796-23	NG
Vogue Max System 26	41-796-24	NG
Vogue Max System 32	41-796-25	NG

Source: Ideal Vogue Max System 15 18 26 32 Installation & Servicing, UIN 219005 A03 (February 2019).

Sections: Table 1 General data; Table 2 Performance data; 1.8 Gas supply; 2.23 Commissioning and testing; 2.24 Initial lighting; 2.28 Menu operation (service mode minimum and maximum rate, MI p. 42); 3.1 Servicing schedule; Flowchart for CO level and combustion ratio check (MI p. 72–73).

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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.