Alliance Laundry Systems 70420801 Gas Requirements, High Altitude Orifice Sizing

Gas Requirements

For converting Non-CE Models from Natural Gas to L.P. Gas:

200 Pound Models - M4975P3

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 4.

For CE models, consult local gas supplier.

Non-CE Models

		Altitude				Orifice				New
Model	Gas									Rate
		feet	m	No.	inches	mm	Quantity		Part No.	(Btu/hr.)*
		2001 – 4000	610 – 1220	19	.1660	4.2			M402995	391,000
	Natural	4001 – 6000	1221 – 1830	20	.1610	4.1		5	M401002	357,000
	Gas	6001 – 8000	1831 – 2440	22	.1570	4.0			M402996	323,000
200L/N		8001 – 10,000	2441 – 3050	24	.1520	3.9			M402980	289,000
		2001 – 4000	610 – 1220	33	.1130	2.9			M401022	391,000
	L.P.	4001 – 6000	1221 – 1830	34	.1110	2.8		4	M411512	357,000
	Gas	6001 – 8000	1831 – 2440	7/64	.1094	2.8			70070902	323,000
		8001 – 10,000	2441 – 3050	37	.1040	2.6			M401024	289,000

* Btu/hr. derate of 4% per 1000 ft. (305 m) of altitude.

Table 4

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