Speed Queen none High Altitude Orifice Sizing

Gas Requirements

High Altitude Orifice Sizing

For proper operation at altitudes above 2000 feet (610 meters), the gas orifice size must be reduced to ensure complete combustion. Refer to Table 10 for non-CE Marked models. (For CE Marked models, consult local gas supplier.)

Model	Gas	Altitude					Orifice			New Rate
		feet	meters	No.	inches	mm		Quantity	Part Number	(Btu/hr)*
	Natural Gas	2001-4000	610-1830	30	0.1285	3.3			M401021	87,400
		4001-6000	1831-2440	31	0.1200	3.0			M401017	72,200
		6001-10,000	2441-3050	32	0.1160	2.9			M402444	64,600
50EG								2
	L.P. Gas	2001-4000	610-1220	47	0.0785	2.0			M400999	87,400
		4001-6000	1221-1830	48	0.0760	1.9			M401001	79,800
		6001-8000	1831-2440	49	0.0730	1.8			M401018	72,200
		8001-10,000	2441-3050	50	0.0700	1.8			M401016	64,600
	Natural Gas	2001-4000	610-1830	28	0.1405	3.6			M401014	110,400
		4001-6000	1831-2440	29	0.1360	3.4			M400997	100,800
		6001-10,000	2441-3050	30	0.1285	3.3			M401021	91,200
50CG								2
	L.P. Gas	2001-4000	610-1220	44	0.0860	2.2			M401011	110,400
		4001-6000	1221-1830	45	0.0820	2.1			M401027	100,800
		6001-8000	1831-2440	46	0.0810	2.1			M401003	91,200
		8001-10,000	2441-3050	47	0.0785	2.0			M400999	81,600
	Natural Gas	2001-4000	610-1830	29	0.1360	3.4			M400997	151,800
		4001-6000	1831-2440	30	0.1285	3.3			M401021	138,600
		6001-10,000	2441-3050	31	0.1200	3.0			M401017	125,400
75CG								3
	L.P. Gas	2001-4000	610-1220	45	0.0820	2.1			M401027	151,800
		4001-6000	1221-1830	46	0.0810	2.1			M401003	138,600
		6001-8000	1831-2440	47	0.0785	2.0			M400999	125,400
		8001-10,000	2441-3050	48	0.0760	1.9			M401001	112,200
	Natural Gas	2001-4000	610-1220	23	0.1540	3.9			M401020	197,800
		4001-6000	1221-1830	25	0.1495	3.8			M402997	180,600
		6001-8000	1831-2440	27	0.1440	3.7			M400998	163,400
634		8001-10,000	2441-3050	29	0.1360	3.4		3	M400997	146,200
	L.P. Gas	2001-4000	610-1220	42	0.0935	2.4			M403017	197,800
		4001-6000	1221-1830	43	0.0890	2.3			M406184	180,600
		6001-8000	1831-2440	44	0.0860	2.2			M401011	163,400
		8001-10,000	2441-3050	45	0.0820	2.1			M401027	146,200

* Btu/hr derate of 4% per 1000 feet (305 meters) of altitude.

Table 10

70256801 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 37