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935SB: Installation, Start-up, Operating and Service Maintenance Instructions
Table 29 – Gas Valve Outlet Pressure for Gas Heat Values at Altitude
(Tabulated Data Based on 80,000 BTUH Input for 0-ft (0m) to 5400-ft
(1646 M) above sea level)
SPECIFIC GRAVITY OF NATURAL GAS
AVG. GAS
0.58
ALTITUDE
HEAT
RANGE
VALUE AT
ft (m)
ALTITUDE
(Btu/cu ft)
900
2.7
0
925
2.6
(0)
950
2.4
975
2.3
to
1000
2.2
1025
2.1
2000
1050
2.0
(610)
1075
1.9
1100
1.8
800
2.9
2001
825
2.8
(611)
850
2.6
875
2.5
to
900
2.3
925
2.2
3000
950
2.1
(914)
975
2.0
1000
1.9
775
2.9
800
2.7
3001
825
2.6
(915)
850
2.4
to
875
2.3
900
2.1
4000
925
2.0
(1219)
950
1.9
975
1.8
1000
1.8
750
2.9
775
2.7
4001
800
2.5
(1220)
825
2.4
850
2.2
to
875
2.1
900
2.0
5000
925
1.9
(1524)
950
1.8
975
1.8
1000
1.8
725
2.9
750
2.7
5001
775
2.5
(1525)
800
2.4
825
2.2
to
850
2.1
875
2.0
900
1.9
5400
925
1.8
(1646)
950
1.8
975
1.8
1000
1.8
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- 80,000
0.60
0.62
0.64
0.66
Manifold Pressure
2.8
2.9
3.0
3.1
2.7
2.8
2.8
2.9
2.5
2.6
2.7
2.8
2.4
2.5
2.6
2.6
2.3
2.4
2.4
2.5
2.2
2.2
2.3
2.4
2.1
2.1
2.2
2.3
2.0
2.0
2.1
2.2
1.9
1.9
2.0
2.1
3.0
3.1
3.1
3.1
2.9
3.0
3.1
3.1
2.7
2.8
2.9
3.0
2.5
2.6
2.7
2.8
2.4
2.5
2.6
2.6
2.3
2.4
2.4
2.5
2.2
2.2
2.3
2.4
2.0
2.1
2.2
2.3
1.9
2.0
2.1
2.1
3.0
3.1
3.1
3.1
2.8
2.9
3.0
3.1
2.6
2.7
2.8
2.9
2.5
2.6
2.7
2.7
2.4
2.4
2.5
2.6
2.2
2.3
2.4
2.4
2.1
2.2
2.2
2.3
2.0
2.1
2.1
2.2
1.9
2.0
2.0
2.1
1.8
1.9
1.9
2.0
3.0
3.0
3.1
3.1
2.8
2.9
2.9
3.0
2.6
2.7
2.8
2.9
2.4
2.5
2.6
2.7
2.3
2.4
2.5
2.5
2.2
2.2
2.3
2.4
2.0
2.1
2.2
2.3
1.9
2.0
2.1
2.1
1.8
1.9
2.0
2.0
1.8
1.8
1.9
1.9
1.8
1.8
1.8
1.8
3.0
3.1
3.1
3.1
2.8
2.9
3.0
3.0
2.6
2.7
2.8
2.9
2.4
2.5
2.6
2.7
2.3
2.4
2.4
2.5
2.2
2.2
2.3
2.4
2.0
2.1
2.2
2.2
1.9
2.0
2.0
2.1
1.8
1.9
1.9
2.0
1.8
1.8
1.8
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
Table 30 – Gas Valve Outlet Pressure for Gas Heat Values at
(Tabulated Data Based on 100,000 BTUH Input for 0-ft (0m) to
5400-ft (1646 M) above sea level)
AVG. GAS
0.68
ALTITUDE
HEAT
RANGE
VALUE AT
ft (m)
ALTITUDE
(Btu/cu ft)
3.1
900
3.0
0
925
2.9
(0)
950
2.7
975
2.6
to
1000
2.5
1025
2.3
2000
1050
2.2
(610)
1075
2.1
1100
3.1
800
3.1
2001
825
3.1
(611)
850
2.9
875
2.7
to
900
2.6
925
2.4
3000
950
2.3
(914)
975
2.2
1000
3.1
775
3.1
800
3.0
3001
825
2.8
(915)
850
2.7
to
875
2.5
900
2.4
4000
925
2.3
(1219)
950
2.1
975
2.0
1000
3.1
750
3.1
775
2.9
4001
800
2.8
(1220)
825
2.6
850
2.5
to
875
2.3
900
2.2
5000
925
2.1
(1524)
950
2.0
975
1.9
1000
3.1
725
3.1
750
2.9
5001
775
2.8
(1525)
800
2.6
825
2.4
to
850
2.3
875
2.2
900
2.1
5400
925
2.0
(1646)
950
1.9
975
1.8
1000
54
Altitude - 100,000
SPECIFIC GRAVITY OF NATURAL GAS
0.58
0.60
0.62
0.64
Manifold Pressure
2.7
2.8
2.9
3.0
2.6
2.7
2.7
2.8
2.4
2.5
2.6
2.7
2.3
2.4
2.5
2.6
2.2
2.3
2.4
2.4
2.1
2.2
2.2
2.3
2.0
2.1
2.1
2.2
1.9
2.0
2.0
2.1
1.8
1.9
1.9
2.0
2.9
3.0
3.1
3.1
2.8
2.9
3.0
3.0
2.6
2.7
2.8
2.9
2.5
2.5
2.6
2.7
2.3
2.4
2.5
2.6
2.2
2.3
2.3
2.4
2.1
2.2
2.2
2.3
2.0
2.0
2.1
2.2
1.9
1.9
2.0
2.1
2.9
3.0
3.1
3.1
2.7
2.8
2.9
3.0
2.6
2.6
2.7
2.8
2.4
2.5
2.6
2.7
2.3
2.3
2.4
2.5
2.1
2.2
2.3
2.4
2.0
2.1
2.2
2.2
1.9
2.0
2.1
2.1
1.8
1.9
2.0
2.0
1.8
1.8
1.9
1.9
2.8
2.9
3.0
3.1
2.7
2.8
2.9
2.9
2.5
2.6
2.7
2.8
2.4
2.4
2.5
2.6
2.2
2.3
2.4
2.4
2.1
2.2
2.2
2.3
2.0
2.0
2.1
2.2
1.9
1.9
2.0
2.1
1.8
1.8
1.9
2.0
1.8
1.8
1.8
1.9
1.8
1.8
1.8
1.8
2.8
2.9
3.0
3.1
2.7
2.8
2.8
2.9
2.5
2.6
2.7
2.7
2.3
2.4
2.5
2.6
2.2
2.3
2.3
2.4
2.1
2.1
2.2
2.3
2.0
2.0
2.1
2.2
1.8
1.9
2.0
2.0
1.8
1.8
1.9
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
0.66
0.68
3.1
3.1
2.9
3.0
2.8
2.9
2.6
2.7
2.5
2.6
2.4
2.5
2.3
2.3
2.2
2.2
2.1
2.1
3.1
3.1
3.1
3.1
3.0
3.1
2.8
2.9
2.6
2.7
2.5
2.6
2.4
2.4
2.3
2.3
2.1
2.2
3.1
3.1
3.1
3.1
2.9
3.0
2.7
2.8
2.6
2.7
2.4
2.5
2.3
2.4
2.2
2.3
2.1
2.1
2.0
2.0
3.1
3.1
3.0
3.1
2.8
2.9
2.7
2.8
2.5
2.6
2.4
2.5
2.3
2.3
2.1
2.2
2.0
2.1
1.9
2.0
1.8
1.9
3.1
3.1
3.0
3.1
2.8
2.9
2.7
2.7
2.5
2.6
2.4
2.4
2.2
2.3
2.1
2.2
2.0
2.0
1.9
1.9
1.8
1.8
1.8
1.8
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