High Altitude Orifice Sizing - Alliance Laundry Systems DA0220SRG Instalación

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.
(For CE Marked models, consult local gas supplier.)
Model Gas
25 Pound Natural Gas
L.P. Gas
30 Pound Natural Gas
L.P. Gas
30 Pound Natural Gas
Stacked
L.P. Gas
35 Pound Natural Gas
L.P. Gas
*Btu/hr derate of 4% per 1000 feet (305 meters) of altitude.
70223701
Altitude
feet meters
2001-4000 610-1220
4001-6000 1221-1830
6001-8000 1831-2440
8001-10,000 2441-3050
2001-6000 610-1830
6001-8000 1831-2440
8001-10,000 2441-3050
2001-4000 610-1220
4001-6000 1221-1830
6001-8000 1831-2440
8001-10,000 2441-3050
2001-6000 610-1830
6001-8000 1831-2440
8001-10,000 2441-3050
2001-4000 610-1220
4001-6000 1221-1830
6001-8000 1831-2440
8001-10,000 2441-3050
2001-6000 610-1830
6001-8000 1831-2440
8001-10,000 2441-3050
2001-4000 610-1220
4001-6000 1221-1830
6001-8000 1831-2440
8001-10,000 2441-3050
2001-4000 610-1220
4001-6000 1221-1830
6001-8000 1831-2440
8001-10,000 2441-3050
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Orifice
# inches mm Quantity
26 0.1470 3.7
27 0.1440 3.7
28 0.1405 3.6
29 0.1360 3.4
43 0.890 2.3
44 0.860 2.2
46 0.810 2.1
22 0.1570 4.0
24 0.1520 3.9
26 0.1470 3.7
28 0.1405 3.6
42 0.0935 2.4
43 0.0890 2.3
44 0.0860 2.2
22 0.1570 4.0
24 0.1520 3.9
26 0.1470 3.7
26 0.1405 3.6
42 0.0935 2.4
43 0.0890 2.3
44 0.0860 2.2
16 0.1770 4.5
17 0.1730 4.4
19 0.1660 4.2
20 0.1610 4.1
38 0.1015 2.6
39 0.0995 2.5
41 0.0960 2.4
42 0.0935 2.4
Table 15
Gas Requirements
Part No.
M401000
M400998
M401014
1 M400997
M406184
M401011
M401003
M402996
M402980
M401000
1 M401014
M403017
M406184
M401011
M402996
M402980
M401000
2 M401014
M403017
M406184
M401011
M411373
M411374
M402995
M401002
1
M411376
M401007
M401015
M403017
New Rate
(Btu/hr)*
58,880
53,760
48,640
43,520
58,880
48,640
43,520
67,160
61,320
55,480
49,640
67,160
55,480
49,640
134,320
122,640
110,960
99,280
134,320
110,960
99,280
82,800
75,600
68,400
61,200
82,800
75,600
68,400
61,200
47