Ideal Checked against MI

Ideal imax (W45, W60, W80, W100, W45P, W60P, W80P)

Commercial heat only, natural gas and propane

Combustion figures

Figure	Natural gas (G20)	LPG (G31)
CO₂ at high rate More infoHide info Jacket (casing) fitted, from the Frame 55 table; Table 1 gives the same figures. No tolerance given. With the jacket removed: NG W45 8.9%, W60 9.1%, W80 8.8%, W100 9.5%; propane W45P 11.1%, W60P 11.1%, W80P 9.8%. Frame 58 sets the gas valve with the casing off, then re-checks with it fitted. Propane lines are the W45P, W60P and W80P; there is no propane W100.	W45 9.1% W60 9.3% W80 9.0% W100 9.7%	W45 11.3% W60 11.3% W80 10.0% W100 Not given in MI
CO₂ at low rate More infoHide info Jacket (casing) fitted, from the Frame 55 table; Table 1 gives the same figures. No tolerance given. With the jacket removed: NG W45 8.2%, W60 8.0%, W80 7.9%, W100 8.8%; propane W45P 9.7%, W60P 9.2%, W80P 8.9%. Propane lines are the W45P, W60P and W80P; there is no propane W100.	W45 8.4% W60 8.2% W80 8.1% W100 9.0%	W45 9.9% W60 9.4% W80 9.1% W100 Not given in MI
Maximum CO	Not given in MI	Not given in MI
CO/CO₂ ratio More infoHide info Measured at the sampling point in the flue adapter (Frame 60). Rate not stated in MI.	Not greater than 0.004	Not greater than 0.004
O₂	Not given in MI	Not given in MI
Working inlet pressure More infoHide info Minimum working pressure at the boiler inlet with the boiler firing (Frame 31 and Gas supply, p. 5). Table 2 gives the supply as G20 20 mbar and G31 37 mbar.	Appliance inlet 17.5 mbar minimum	Appliance inlet 37 mbar minimum
Gas rate at maximum More infoHide info Table 1 lists this as Gas Rate. Check after 10 minutes with the boiler forced to maximum (Frames 58 and 60); you should read at least 90% of nominal (Frame 55). Propane lines are the W45P, W60P and W80P.	W45 4.76 m³/h W60 6.35 m³/h W80 8.46 m³/h W100 10.58 m³/h	W45 1.84 m³/h W60 2.45 m³/h W80 3.27 m³/h W100 Not given in MI

From UIN 203452 A06 (August 2010)

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

Model	Gas
imax W45	NG
imax W60	NG
imax W80	NG
imax W100	NG
imax W45P	LPG
imax W60P	LPG
imax W80P	LPG

Source: Ideal imax W45, W60, W80 & W100, W45P, W60P & W80P installation and servicing, UIN 203452 A06 (August 2010).

Sections: Table 1 Performance data; Table 2 General data; Gas supply (p. 5); Frame 31 Gas connection; Frame 55 Initial lighting; Frame 58 Gas rate adjustment; Frame 59 Safety; Frame 60 Servicing schedule.

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.