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Automatic Gas Valve
(with manual shut-off)
Manifold
Natural Gas
Heating Value of
800 to 899 Btu/ cu.ft.
Natural Gas
Heating Value of
900 to 999 Btu/ cu.ft.
Natural Gas
Heating Value of
1,000 to 1,100 Btu/ cu.ft.
LP Heating Value
of 2,500 Btu/ft.3
Manifold Pressure
Orifice Size
NOTE: Manifold pressure based on sea level LP heating value of 2,500 Btu/cu. ft.
Table 6. Manifold Pressure Setting (in WC) & Orifice Size for LP Gas
16
Burner
Assembly
Figure 7. Typical Gas Hookup - Right Side Entry
zero to 1,999
2,000 to 4,999
3.5
zero to 1,999
2,000 to 4,999
3.5
zero to 1,999
2,000 to 4,999
3.5
Table 5. Manifold Pressure Setting (in WC) for Natural Gas
zero to
2,000 to
1,999
2,999
10.0
8.5
55
55
Shut-Off Valve
with 1 /8 NPT
plugged tap
Ground
Joint
Union
ALTITUDE AbOVE SEA LEVEL
5,000 to 5,999
3.5
3.5
ALTITUDE AbOVE SEA LEVEL
5,000 to 5,999
3.5
3.5
ALTITUDE AbOVE SEA LEVEL
5,000 to 5,999
3.5
3.0
ALTITUDE AbOVE SEA LEVEL
3,000 to
5,000 to
4,999
5,999
8.5
10.0
55
3
Some utilities
require Shut-Off
Valve to be
4 to 5 feet
above floor
Dripleg
6,000 to 7,999
8,000 to 10,000
3.5
6,000 to 7,999
8,000 to 10,000
3.2
6,000 to 7,999
8,000 to 10,000
2.8
6,000 to
7,999
9.0
56
56
3.0
2.8
2.5
8,000 to
10,000
8.5
56
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