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Table 3.3 - Altitude Adjustment by Changing Orifice
(Natural Gas Only At 3.8” W.C. Manifold Pressure)
Altitude
(Ft)
Reduction
(%)
Orifice Size
(DMS No.)
Target Input
(Btu/h)
0-4500
-
31
40,000
4500-5500
4
32
38,400
5500-6500
8
33
36,800
6500-7500
12
34
35,200
7500-8500
16
35
33,600
8500-9500
20
35
32,000
9500-10500
24
36
30,400
10500-11500
28
37
28,800
Summary of Contents for Designer DV36
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Page 27: ...21 Figure 4 1 Top Louvre Assembly Removal Figure 4 2 Glass Door Removal...
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