Bryant 830CA Installation, Start--Up, Operating, And Service And Maintenance page 34

Table 15 – Gas Valve Outlet Pressure for Gas Heat Values at
Altitude - - 60,000
Tabulated Data Based on 60,000 BTUH Input for 0-ft (0m) to
5400-ft (1646-M) above
AVG. GAS
HEAT VALUE
ALTITUDE
AT ALTITUDE
RANGE
ft (m) (Btu/cu ft)
900
925
0
(0) 950
975
to 1000
1025
2000 1050
(610) 1075
1100
800
825
2001
(611) 850
875
to 900
925
3000 950
(914) 975
1000
775
800
825
3001
(915) 850
to 875
900
4000 925
(1219) 950
975
1000
750
775
800
4001
(1220) 825
850
to 875
900
5000 925
(1524) 950
975
1000
725
750
5001 775
(1524) 800
825
to 850
875
5400 900
(1646) 925
950
975
1000
sea level
SPECIFIC GRAVITY OF
NATURAL GAS
0.58 0.60 0.62 0.64
Gas Valve Outlet Pressure
(in. W.C.)
3.0 3.1 3.2 3.3
2.8 2.9 3.0 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 2.4 2.5 2.5
2.2 2.3 2.4 2.4
2.1 2.2 2.2 2.3
2.0 2.1 2.1 2.2
3.2 3.3 3.5 3.6
3.0 3.1 3.3 3.4
2.9 3.0 3.1 3.2
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 2.4 2.5 2.5
2.2 2.3 2.3 2.4
2.1 2.1 2.2 2.3
3.2 3.3 3.4 3.5
3.0 3.1 3.2 3.3
2.8 2.9 3.0 3.1
2.6 2.7 2.8 2.9
2.5 2.6 2.7 2.8
2.4 2.4 2.5 2.6
2.2 2.3 2.4 2.5
2.1 2.2 2.3 2.3
2.0 2.1 2.2 2.2
1.9 2.0 2.0 2.1
3.1 3.2 3.4 3.5
2.9 3.0 3.1 3.2
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 2.3 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 2.0
1.8 1.8 1.9 1.9
2.8 2.9 3.0 3.0
2.6 2.7 2.8 2.8
2.4 2.5 2.6 2.7
2.3 2.3 2.4 2.5
2.1 2.2 2.3 2.3
2.0 2.1 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
1.8 1.8 1.8 1.8
1.8 1.8 1.8 1.8
Table 16 – Gas Valve Outlet Pressure for Gas Heat Values at
Tabulated Data Based on 80,000 BTUH Input, for 0-ft (0-m) to
5400-ft (1646-M)
AVG. GAS
HEAT VALUE
ALTITUDE
AT ALTITUDE
RANGE
ft (m) (Btu/cu ft)
0
(0)
to 1000
1025
2000 1050
(610) 1075
1100
2001
(611)
to
3000
(914)
1000
3001
(915)
to
4000
(1219)
1000
4001
(1220)
to
5000
(1524)
1000
5001
(1524)
to
5400
(1646)
1000
34
Altitude - - 80,000
above sea level
SPECIFIC GRAVITY OF
NATURAL GAS
0.58 0.60 0.62
Gas Valve Outlet Pressure
(in. W.C.)
900 2.8 2.9 3.0
925 2.6 2.7 2.8
950 2.5 2.6 2.7
975 2.4 2.5 2.5
2.3 2.3 2.4
2.1 2.2 2.3
2.0 2.1 2.2
1.9 2.0 2.1
1.9 1.9 2.0
800 3.0 3.1 3.1
825 2.8 2.9 3.0
850 2.7 2.8 2.9
875 2.5 2.6 2.7
900 2.4 2.5 2.5
925 2.2 2.3 2.4
950 2.1 2.2 2.3
975 2.0 2.1 2.2
1.9 2.0 2.1
775 3.0 3.1 3.1
800 2.8 2.9 3.0
825 2.6 2.7 2.8
850 2.5 2.6 2.6
875 2.3 2.4 2.5
900 2.2 2.3 2.3
925 2.1 2.1 2.2
950 2.0 2.0 2.1
975 1.9 1.9 2.0
1.8 1.8 1.9
750 2.9 3.0 3.1
775 2.7 2.8 2.9
800 2.6 2.7 2.8
825 2.4 2.5 2.6
850 2.3 2.4 2.4
875 2.1 2.2 2.3
900 2.0 2.1 2.2
925 1.9 2.0 2.0
950 1.8 1.9 1.9
975 1.8 1.8 1.8
1.8 1.8 1.8
725 2.9 3.0 3.1
750 2.7 2.8 2.9
775 2.5 2.6 2.7
800 2.4 2.4 2.5
825 2.2 2.3 2.4
850 2.1 2.2 2.2
875 2.0 2.0 2.1
900 1.9 1.9 2.0
925 1.8 1.8 1.9
950 1.8 1.8 1.8
975 1.8 1.8 1.8
1.8 1.8 1.8
0.64
3.1
2.9
2.8
2.6
2.5
2.4
2.3
2.1
2.1
3.1
3.1
3.0
2.8
2.6
2.5
2.4
2.2
2.1
3.1
3.1
2.9
2.7
2.6
2.4
2.3
2.2
2.1
2.0
3.1
3.0
2.8
2.7
2.5
2.4
2.2
2.1
2.0
1.9
1.8
3.1
3.0
2.8
2.6
2.5
2.3
2.2
2.1
1.9
1.8
1.8
1.8