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10 - GAS SUPPLY PIPING
Table 5 - NATURAL GAS
Pipe Capacity - BTU Per Hour Input
Length of
Pipe - Ft�
½"
20
92,000
40
63,000
60
50,000
Table 6 - PROPANE GAS
Pipe Capacity - BTU Per Hour Input
Length
of
Copper Tubing*
Pipe - Ft�
⅝"
20
131,000
40
90,000
60
72,000
*Outside diameter:
Measure length of pipe or tubing from gas meter or propane
second stage regulator.
Table 7 - Gas Pressure
PRESSURE
MIN� SUPPLY
MAX� SUPPLY
MANIFOLD
Verify minimum pressure while boiler is operating.
Verify maximum pressure when boiler is not operating
Includes Fittings
¾"
1"
190,000
350,000
625,000
130,000
245,000
445,000
105,000
195,000
365,000
Includes Fittings
Iron Pipe
¾"
½"
216,000
189,000
393,000
145,000
129,000
267,000
121,000
103,000
217,000
GAS
NATURAL
PROPANE
5" w.c.
11" w.c.
13.5" w.c.
13.5" w.c.
3.5" w.c.
10" w.c.
23
1¼"
¾"
PN 240013095, Rev. A [08/15/2020]
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Troubleshooting
