13
Figure 19
Conversion Kit Rating Plate Label
A13071
Table 5
Orifice Size* and Manifold Pressure (in. w.c.) for Gas Input Rate
(Tabulated data based on 22,000 Btuh per burner, derated 4 percent for each 1000 ft. (305 M) above sea level)
ALTITUDE RANGE
FT. (M)
AVG. GAS
HEAT VALUE
AT ALTITUDE
(BTU/CU FT.)
SPECIFIC GRAVITY OF NATURAL GAS
0.58
0.60
0.62
0.64
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
Orifice
No.
Manifold
Pressure
U.S.A.
0 to 2000
(0 to 610)
900
42
3.5
42
3.6
42
3.7
41
3.5
925
42
3.3
42
3.4
42
3.5
42
3.7
950
43
3.8
42
3.3
42
3.4
42
3.5
975
43
3.6
43
3.8
42
3.2
42
3.3
1000
43
3.5
43
3.6
43
3.7
43
3.8
1025
43
3.3
43
3.4
43
3.5
43
3.6
1050
44
3.6
43
3.2
43
3.4
43
3.5
1075
44
3.4
44
3.5
43
3.2
43
3.3
1100
44
3.3
44
3.4
44
3.5
43
3.2
U.S.A.
2001 to
3000 (610
to 914)
800
42
3.4
42
3.5
42
3.6
42
3.7
825
42
3.2
42
3.3
42
3.4
42
3.5
850
43
3.7
43
3.8
42
3.2
42
3.3
875
43
3.5
43
3.6
43
3.7
43
3.8
900
43
3.3
43
3.4
43
3.5
43
3.6
925
43
3.1
43
3.2
43
3.3
43
3.4
950
43
2.9
43
3.0
43
3.1
43
3.2
975
43
2.8
43
2.9
43
3.0
43
3.1
1000
43
2.6
43
2.7
43
2.8
43
2.9
U.S.A.
3001 to
4000
(914 to
1219)
775
42
3.2
42
3.3
42
3.4
42
3.5
800
43
3.6
43
3.8
42
3.2
42
3.3
825
43
3.4
43
3.5
43
3.7
43
3.8
850
43
3.2
43
3.3
43
3.4
43
3.6
875
43
3.0
43
3.1
43
3.3
43
3.4
900
43
2.9
43
3.0
43
3.1
43
3.2
925
43
2.7
43
2.8
43
2.9
43
3.0
950
43
2.6
43
2.7
43
2.8
43
2.8
U.S.A.
4001 to
5000
(1219 to
1524)
750
43
3.6
43
3.8
42
3.2
42
3.3
775
43
3.4
43
3.5
43
3.6
43
3.8
800
43
3.2
43
3.3
43
3.4
43
3.5
825
43
3.0
43
3.1
43
3.2
43
3.3
850
43
2.8
43
2.9
43
3.0
43
3.1
875
43
2.7
43
2.8
43
2.9
43
2.9
900
43
2.5
43
2.6
43
2.7
43
2.8
925
43
2.4
43
2.5
43
2.6
43
2.6
* Orifice number 43 is factory installed.
