Ideal Checked against MI

Ideal Vogue Max Combi (26, 32, 40)

Combi, natural gas

Combustion figures

Figure	Natural gas (G20)
CO₂ at high rate More infoHide info Table 1 gives CO₂ at Max. DHW and Min. DHW, with a tolerance of ± 0.7 for all sizes. Measured at the flue gas sampling point on the flue turret.	26 9.4% ± 0.7 32 9.8% ± 0.7 40 9.6% ± 0.7
CO₂ at low rate More infoHide info Table 1, Min. DHW.	26 8.0% ± 0.7 32 8.5% ± 0.7 40 8.1% ± 0.7
Maximum CO More infoHide info At maximum and minimum gas rate (commissioning flowchart).	Less than 350 ppm
CO/CO₂ ratio More infoHide info At maximum and minimum gas rate (commissioning flowchart). Section 3.1 says to contact Ideal if the ratio is greater than 0.004 after checking flue and seal integrity, inlet pressure and gas rate.	Less than 0.0040
O₂	Not given in MI
Working inlet pressure More infoHide info MI 1.8: a minimum permitted operating pressure of 18 mb is assumed at the appliance inlet; the boiler can deliver full output at inlet pressures as low as 14 mb. Minimum meter outlet: 19 mb. The gas cock test point can read slightly lower (pressure drop graph in MI 1.8). Check at the gas service cock test point at maximum rate with all other gas appliances working (MI 2.23). Table 1 gives the gas supply as 2H - G20 - 20mbar. No maximum given.	Appliance inlet 18 mbar minimum
Gas rate at maximum More infoHide info Maximum DHW input (Table 3). At maximum CH input (Table 2): 26: 1.869, 32: 2.695, 40: 3.314 m³/h. Calculated using a calorific value of 38.7 MJ/m³ gross.	26 2.695 m³/h 32 3.314 m³/h 40 4.150 m³/h
Flue integrity More infoHide info The flowchart passes the flue if O₂ is 20.6% or more OR CO₂ is 0.2% or less. Measured at the air sample point on the flue turret, boiler at maximum rate.	O₂ ≥ 20.6% CO₂ ≤ 0.2%

From UIN 222378 A01 (April 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 Combi 26	47-349-59	NG
Vogue Max Combi 32	47-349-60	NG
Vogue Max Combi 40	47-349-61	NG

Source: Ideal Vogue Max Combi 26 32 40 Installation & Servicing, UIN 222378 A01 (April 2019).

Sections: Table 1 General Data; Tables 2 and 3 Performance Data; 1.8 Gas Supply; 2.8 Flue (turret sample points); 2.23 Commissioning and Testing; 2.24 Initial Lighting; 2.28 Menu Operation (Service mode minimum rate, maximum CH rate, maximum DHW rate); 3.1 Servicing Schedule; Flowchart for CO level and combustion ratio check.

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.